From 473526f812fd2c7a2116ffa95503df1493b2c1dc Mon Sep 17 00:00:00 2001 From: Adam Wieckowski Date: Wed, 13 Oct 2021 12:31:27 +0200 Subject: [PATCH 1/2] Changes for 1.2.0 --- CMakeLists.txt | 42 +- Makefile | 4 + README.md | 30 +- cfg/experimental/lowdelay_fast.cfg | 12 +- cfg/experimental/lowdelay_faster.cfg | 10 +- cfg/experimental/lowdelay_medium.cfg | 6 +- cfg/experimental/lowdelay_slow.cfg | 6 +- cfg/experimental/lowdelay_slower.cfg | 2 + cfg/randomaccess_fast.cfg | 10 +- cfg/randomaccess_faster.cfg | 10 +- cfg/randomaccess_medium.cfg | 6 +- cfg/randomaccess_slow.cfg | 6 +- cfg/randomaccess_slower.cfg | 2 + cfg/randomaccess_tooltest.cfg | 2 + changelog.txt | 30 + include/apputils/VVEncAppCfg.h | 8 +- include/vvenc/vvenc.h | 3 +- include/vvenc/vvencCfg.h | 6 + source/App/vvencFFapp/EncApp.cpp | 87 +- source/App/vvencapp/vvencapp.cpp | 102 +- source/Lib/CommonLib/AdaptiveLoopFilter.cpp | 157 +- source/Lib/CommonLib/AdaptiveLoopFilter.h | 5 +- source/Lib/CommonLib/Picture.cpp | 3 + source/Lib/CommonLib/Picture.h | 3 + source/Lib/CommonLib/QuantRDOQ2.cpp | 10 +- source/Lib/CommonLib/StatCounter.h | 2 +- source/Lib/CommonLib/TypeDef.h | 6 +- source/Lib/CommonLib/UnitPartitioner.cpp | 49 +- source/Lib/CommonLib/UnitPartitioner.h | 4 + source/Lib/CommonLib/x86/CommonDefX86.cpp | 2 +- source/Lib/CommonLib/x86/IntraPredX86.h | 2 +- source/Lib/DecoderLib/DecLib.cpp | 10 +- source/Lib/EncoderLib/BitAllocation.cpp | 12 +- .../Lib/EncoderLib/EncAdaptiveLoopFilter.cpp | 473 +- source/Lib/EncoderLib/EncAdaptiveLoopFilter.h | 11 +- source/Lib/EncoderLib/EncCu.cpp | 32 +- source/Lib/EncoderLib/EncCu.h | 4 + source/Lib/EncoderLib/EncGOP.cpp | 10 +- source/Lib/EncoderLib/EncLib.cpp | 48 +- source/Lib/EncoderLib/EncLib.h | 2 +- source/Lib/EncoderLib/EncModeCtrl.cpp | 8 + source/Lib/EncoderLib/EncModeCtrl.h | 7 + source/Lib/EncoderLib/EncPicture.cpp | 9 - source/Lib/EncoderLib/EncReshape.cpp | 93 + source/Lib/EncoderLib/EncSlice.cpp | 126 +- source/Lib/EncoderLib/EncSlice.h | 3 + source/Lib/EncoderLib/IntraSearch.cpp | 2 +- source/Lib/EncoderLib/RateCtrl.cpp | 294 +- source/Lib/EncoderLib/RateCtrl.h | 40 +- source/Lib/apputils/CMakeLists.txt | 9 +- source/Lib/apputils/VVEncAppCfg.cpp | 243 +- source/Lib/apputils/YuvFileIO.cpp | 81 +- source/Lib/vvenc/CMakeLists.txt | 10 +- source/Lib/vvenc/vvenc.cpp | 4 +- source/Lib/vvenc/vvencCfg.cpp | 83 +- source/Lib/vvenc/vvencimpl.cpp | 22 +- source/Lib/vvenc/vvencimpl.h | 4 +- test/vvenclibtest/vvenclibtest.cpp | 7 +- thirdparty/nlohmann_json/CITATION.cff | 14 + thirdparty/nlohmann_json/CODE_OF_CONDUCT.md | 46 + thirdparty/nlohmann_json/ChangeLog.md | 2614 ++ thirdparty/nlohmann_json/LICENSE.MIT | 21 + thirdparty/nlohmann_json/README.md | 1705 + .../single_include/nlohmann/json.hpp | 26640 ++++++++++++++++ 64 files changed, 32590 insertions(+), 724 deletions(-) create mode 100644 thirdparty/nlohmann_json/CITATION.cff create mode 100644 thirdparty/nlohmann_json/CODE_OF_CONDUCT.md create mode 100644 thirdparty/nlohmann_json/ChangeLog.md create mode 100644 thirdparty/nlohmann_json/LICENSE.MIT create mode 100644 thirdparty/nlohmann_json/README.md create mode 100644 thirdparty/nlohmann_json/single_include/nlohmann/json.hpp diff --git a/CMakeLists.txt b/CMakeLists.txt index 3ad7b96d1..0feb71a13 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -10,7 +10,7 @@ if( NOT CMAKE_VERSION VERSION_LESS 3.13.0 ) endif() # project name -project( vvenc VERSION 1.1.0 ) +project( vvenc VERSION 1.2.0 ) set( VVENC_ENABLE_X86_SIMD TRUE ) set( VVENC_ENABLE_ARM_SIMD FALSE ) @@ -54,10 +54,10 @@ if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR ) if( MSVC ) add_compile_options( "/EHsc" ) endif() - + list( FIND ${PROJECT_NAME}_ADD_SUBDIRECTORIES "source/App/vvencFFapp" vvEncFfAppFound ) list( FIND ${PROJECT_NAME}_ADD_SUBDIRECTORIES "source/App/vvencapp" vvEncAppFound ) - + if( vvEncFfAppFound GREATER_EQUAL 0 OR vvEncAppFound GREATER_EQUAL 0 ) list( PREPEND ${PROJECT_NAME}_ADD_SUBDIRECTORIES "source/Lib/apputils" ) endif() @@ -75,19 +75,20 @@ endif() # enable install target set( VVENC_ENABLE_INSTALL ON CACHE BOOL "Enable or disable install target" ) - + # enable postfix set( VVENC_ENABLE_BUILD_TYPE_POSTFIX OFF CACHE BOOL "Enable or disable build type postfix for apps and libs" ) - + set( VVENC_ENABLE_LINK_TIME_OPT ON CACHE BOOL "Enable link time optimization for release and profile builds" ) +set( VVENC_ENABLE_THIRDPARTY_JSON ON CACHE BOOL "Enable use of thirdparty json library" ) + if( CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang" ) - + # enable address sanitizer set( VVENC_USE_ADDRESS_SANITIZER OFF CACHE BOOL "Enable or disable address sanitizer" ) - - # add -march=native + set( VVENC_OPT_TARGET_ARCH "" CACHE STRING "Enable or disable building with architecture specific optimization" ) endif() @@ -146,9 +147,6 @@ if( NOT CMAKE_BUILD_TYPE ) set( CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel." FORCE ) endif() -#set( ENABLE_LINK_TIME_OPT ON CACHE BOOL "Enable link time optimization for release and profile builds" ) -#set( OPT_TARGET_ARCH "native" CACHE STRING "Create code and optimize for this architecture (default native)" ) - # set c++11 set( CMAKE_CXX_STANDARD 14 ) set( CMAKE_CXX_STANDARD_REQUIRED ON ) @@ -343,8 +341,26 @@ add_test( NAME Test_compare_output-medium_noqpa_0thr COMMAND ${CMAKE_COMMAND} -E add_test( NAME Test_vvencFFapp-lowdelay_medium_enc COMMAND vvencFFapp -c ../../cfg/experimental/lowdelay_medium.cfg -c ../../test/data/RTn23.cfg --IntraPeriod=-1 -dph 1 -f 8 -b outf.vvc ) add_test( NAME Test_vvencFFapp-lowdelay_medium_dec COMMAND vvencFFapp --decode -b outf.vvc ) -add_test( NAME Test_remove_temp_files COMMAND ${CMAKE_COMMAND} -E remove out.vvc tout.vvc rec.yuv outf.vvc ) - +add_test( NAME Test_vvencapp-medium_rc2p COMMAND vvencapp --preset medium -s 80x44 -r 15 -i ../../test/data/RTn23_80x44p15_f15.yuv -f 5 --Bitrate=10000 --Passes=2 -o out.vvc ) +set_tests_properties( Test_vvencapp-medium_rc2p PROPERTIES TIMEOUT 30 ) +add_test( NAME Test_vvencFFapp-medium_rc2p COMMAND vvencFFapp -c ../../cfg/randomaccess_medium.cfg -c ../../test/data/RTn23.cfg -f 5 --TargetBitrate=10000 --Passes=2 -b outf.vvc ) +set_tests_properties( Test_vvencFFapp-medium_rc2p PROPERTIES TIMEOUT 30 ) +add_test( NAME Test_compare_output-medium_rc2p COMMAND ${CMAKE_COMMAND} -E compare_files out.vvc outf.vvc ) + +add_test( NAME Test_vvencFFapp-medium_rc2p_statsFile1_exp COMMAND vvencFFapp -c ../../cfg/randomaccess_medium.cfg -c ../../test/data/RTn23.cfg -f 5 --TargetBitrate=10000 --Pass=1 --RCStatsFile=stats.json -b outf.vvc ) +set_tests_properties( Test_vvencFFapp-medium_rc2p_statsFile1_exp PROPERTIES TIMEOUT 30 ) +add_test( NAME Test_vvencFFapp-medium_rc2p_statsFile2_exp COMMAND vvencFFapp -c ../../cfg/randomaccess_medium.cfg -c ../../test/data/RTn23.cfg -f 5 --TargetBitrate=10000 --Pass=2 --RCStatsFile=stats.json -b outf.vvc ) +set_tests_properties( Test_vvencFFapp-medium_rc2p_statsFile2_exp PROPERTIES TIMEOUT 30 ) +add_test( NAME Test_compare_output-medium_rc2p_statsFile_exp COMMAND ${CMAKE_COMMAND} -E compare_files out.vvc outf.vvc ) + +add_test( NAME Test_vvencapp-medium_rc2p_statsFile1_easy COMMAND vvencapp --preset medium -s 80x44 -r 15 -i ../../test/data/RTn23_80x44p15_f15.yuv -f 5 --Bitrate=10000 --Pass=1 --RCStatsFile=stats.json -o out.vvc ) +set_tests_properties( Test_vvencapp-medium_rc2p_statsFile1_easy PROPERTIES TIMEOUT 30 ) +add_test( NAME Test_vvencapp-medium_rc2p_statsFile2_easy COMMAND vvencapp --preset medium -s 80x44 -r 15 -i ../../test/data/RTn23_80x44p15_f15.yuv -f 5 --Bitrate=10000 --Pass=2 --RCStatsFile=stats.json -o out.vvc ) +set_tests_properties( Test_vvencapp-medium_rc2p_statsFile2_easy PROPERTIES TIMEOUT 30 ) +add_test( NAME Test_compare_output-medium_rc2p_statsFile_easy COMMAND ${CMAKE_COMMAND} -E compare_files out.vvc outf.vvc ) + +add_test( NAME Test_remove_temp_files COMMAND ${CMAKE_COMMAND} -E remove out.vvc tout.vvc rec.yuv outf.vvc stats.json ) + if( VVENC_ENABLE_INSTALL ) # include installer diff --git a/Makefile b/Makefile index 85752e93b..3a4ce40b0 100644 --- a/Makefile +++ b/Makefile @@ -46,6 +46,10 @@ ifneq ($(disable-lto),) CONFIG_OPTIONS += -DVVENC_ENABLE_LINK_TIME_OPT=OFF endif +ifneq ($(disable-json),) +CONFIG_OPTIONS += -DVVENC_ENABLE_THIRDPARTY_JSON=OFF +endif + ifneq ($(enable-build-type-postfix),) CONFIG_OPTIONS += -DVVENC_ENABLE_BUILD_TYPE_POSTFIX=ON endif diff --git a/README.md b/README.md index f7c0e3cfe..e1fa30069 100644 --- a/README.md +++ b/README.md @@ -49,6 +49,8 @@ The standard encoder (**vvencapp**) can be used in one of five predefined preset | --qp,-q | 32 | Quantization parameter (0..63) | | --bitrate,-b | 0 | Bitrate for rate control (0: constant-QP encoding without rate control, otherwise bits per second).
Rate control requires correct `--framerate` (see option above). | | --passes,-p | -1 | Number of rate control passes (1: single-pass rate control, 2: two-pass rate control) | +| --pass | not set | Set current rate control pass. If not set, encoder will run both passes. If set to [1,2],
encoder will execute first or second pass only. Requires `--rcstatsfile` to be set (see below). | +| --rcstatsfile | not set | Rate control statistics file, to store or load first pass rate control statistics data. | | --qpa | 1 | Perceptual QP adaptation (QPA) to improve subjective video quality (0: off, 1: on) | | --refreshsec,-rs | 1 | Intra period/refresh in seconds | | --threads,-t | size >= 1280x720:
8, else: 4 | Number of threads (1-N) | @@ -72,7 +74,7 @@ The expert mode encoder (**vvencFFapp**) is based on the [VVC test model (VTM)]( **Example usage:** In order to start your first experiments with the expert mode encoder, adapt the sequence.cfg configuration file to your input YUV source file and use the following command: vvencFFapp -c randomaccess_medium.cfg -c sequence.cfg - + ## How to map command line parameters of the standard encoder into the full featured expert mode encoder? The export mode encoder (**vvencFFapp**) can be used in the same manner as the standard encoder (**vvencapp**) by using the adapted expert option names. Be aware of that some options have different default values. The following table shows only expert options that differs from the standard encoder: @@ -91,7 +93,9 @@ Be aware of that some options have different default values. The following table | --output,-o | not set | --BitstreamFile,-b | not set | | --qp,-q | 32 | --QP | 32 | | --bitrate,-b | 0 | --TargetBitrate | 0 | -| --passes,-p | -1 | --NumPasses | -1 | +| --passes,-p | -1 | --NumPasses | -1 | +| --pass | -1 | --Pass | -1 | +| --rcstatsfile | - | --RCStatsFile | - | | --qpa | 1 | --PerceptQPA,-qpa | 0 | | --refreshtype,-rt | cra | --DecodingRefreshType | cra | | --refreshsec,rs | 1 | --RefreshSec | 1 | @@ -104,20 +108,20 @@ Be aware of that some options have different default values. The following table | --accessunitdelimiter,-aud | auto | --AccessUnitDelimiter,-aud | auto | | --vuiparameterspresent,-vui | auto | --VuiParametersPresent,-vui | auto | | --hrdparameterspresent,-hrd | auto | --HrdParametersPresent,-hrd | auto | -| --decodedpicturehash,-dph | off | --SEIDecodedPictureHash,-dph | auto | +| --decodedpicturehash,-dph | off | --SEIDecodedPictureHash,-dph | off | **Example usage:** Given a YUV 4:2:0 input file with a bit-depth of 8bit and a resolution of 176x144 pixels, the following calls will encode the input file with the medium speedup preset with 1Mbit/s by using Two pass rate control. Both calls will produce the same output. -**standard encoder:** +**standard encoder:** vvencapp --preset medium -i BUS_176x144_75@15.yuv -s 176x144 -r 15 -b 1000000 -p 2 -o str.266 -**full featured expert mode encoder:** +**full featured expert mode encoder:** vvencFFapp --preset medium --InputFile BUS_176x144_75@15.yuv -s 176x144 -fr 15 -TargetBitrate 1000000 --NumPasses 2 -qpa 1 -t -1 -b str.266 - + # Contributing Feel free to contribute. To do so: @@ -126,6 +130,20 @@ Feel free to contribute. To do so: * Apply the desired changes * Create a pull-request to the upstream repository +# Third party tools + +## nlohmann/json: JSON for Modern C++ + +JSON serialization is used for writing / reading rate control statistics. The external library is available under +MIT license at https://github.com/nlohmann/json. Please see [LICENSE.MIT](./thirdparty/nlohmann_json/LICENSE.MIT) for +the terms of use of the contents of this library. + +In case you don't want to include the external nlohmann/json library, please compile with + + make install-release disable-json=1 + +In this case writing / reading rate control statistic files is not supported by the VVenC encoders. + # License Please see [LICENSE.txt](./LICENSE.txt) file for the terms of use of the contents of this repository. diff --git a/cfg/experimental/lowdelay_fast.cfg b/cfg/experimental/lowdelay_fast.cfg index d23755ebd..ee52ea3ea 100644 --- a/cfg/experimental/lowdelay_fast.cfg +++ b/cfg/experimental/lowdelay_fast.cfg @@ -74,8 +74,8 @@ MaxNumMergeCand : 6 # Maximum number of merge candidates # Tools configuration Affine : 2 # Affine prediction: 0: disabled, 1: vtm, 2: fast ALF : 1 # Adpative Loop Filter: 0: disabled, 1: enabled -ALFSpeed : 0 # ALF speed (skip filtering of non-referenced frames) [0-1] -AllowDisFracMMVD : 0 # Disable fractional MVD in MMVD mode adaptively +ALFSpeed : 1 # ALF speed (skip filtering of non-referenced frames) [0-1] +AllowDisFracMMVD : 1 # Disable fractional MVD in MMVD mode adaptively BCW : 0 # Enable Generalized Bi-prediction(Bcw) 0: disabled, 1: enabled, 2: fast BIO : 1 # Bi-directional optical flow: 0: disabled, 1: enabled CCALF : 1 # Cross-component Adaptive Loop Filter: 0: disabled, 1: enabled @@ -86,7 +86,7 @@ EncDbOpt : 0 # Encoder optimization with deblocking fi Geo : 0 # Geometric partitioning mode: 0: disabled, 1: vtm, 2: good quality, 3: fast IMV : 5 # Adaptive MV precision Mode (IMV): 0: disabled, 1:vtm, 2-7: fast modes ISP : 0 # Intra subpartitions: 0: disabled, 1: enabled, 2: fast, 3: faster -JointCbCr : 0 # Joint coding of chroma residuals: 0: disabled, 1: enabled +JointCbCr : 1 # Joint coding of chroma residuals: 0: disabled, 1: enabled LFNST : 1 # LFNST: 0: disabled, 1: enabled LMChroma : 1 # LMChroma prediction: 0: disabled, 1: enabled LMCSEnable : 2 # LMCS: 0: disable, 1:enable, 2: use SCC detection to disable for screen coded content @@ -121,7 +121,7 @@ ChromaTS : 0 # Chroma transform skip: 0: disabled, 1: TransformSkipLog2MaxSize : 4 # Fast options -QtbttExtraFast : 2 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled +QtbttExtraFast : 3 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled ContentBasedFastQtbt : 1 # Signal based QTBT speed-up: 0: disabled, 1: enabled PBIntraFast : 1 # Fast assertion if the intra mode is probable: 0: disabled, 1: enabled FastMrg : 2 # Fast methods for inter merge: 0: disabled, 1: vtm, 2: fast @@ -131,6 +131,8 @@ FastIntraTools : 0 # Speedup intra tools: LFNST, ISP, MTS FastInferMerge : 2 # Fast method to skip Inter/Intra modes. 0: off, [1..4] speedups ECU : 1 # Early CU setting IntegerET : 0 # Enable early termination for integer motion search -IntraEstDecBit : 3 # Test every eight intra directional mode in the first pass +IntraEstDecBit : 2 # Test every eight intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 1 # Reduce modes for chroma full RD intra search diff --git a/cfg/experimental/lowdelay_faster.cfg b/cfg/experimental/lowdelay_faster.cfg index 27d50951d..48c464d53 100644 --- a/cfg/experimental/lowdelay_faster.cfg +++ b/cfg/experimental/lowdelay_faster.cfg @@ -73,12 +73,12 @@ MaxNumMergeCand : 6 # Maximum number of merge candidates # Tools configuration Affine : 0 # Affine prediction: 0: disabled, 1: vtm, 2: fast -ALF : 0 # Adpative Loop Filter: 0: disabled, 1: enabled -ALFSpeed : 0 # ALF speed (skip filtering of non-referenced frames) [0-1] +ALF : 1 # Adpative Loop Filter: 0: disabled, 1: enabled +ALFSpeed : 1 # ALF speed (skip filtering of non-referenced frames) [0-1] AllowDisFracMMVD : 0 # Disable fractional MVD in MMVD mode adaptively BCW : 0 # Enable Generalized Bi-prediction(Bcw) 0: disabled, 1: enabled, 2: fast BIO : 0 # Bi-directional optical flow: 0: disabled, 1: enabled -CCALF : 0 # Cross-component Adaptive Loop Filter: 0: disabled, 1: enabled +CCALF : 1 # Cross-component Adaptive Loop Filter: 0: disabled, 1: enabled CIIP : 0 # CIIP mode: 0: disable, 1: vtm, 2: fast, 3: faster DepQuant : 0 # Dependent quantization: 0: disabled, 1: enabled DMVR : 1 # Decoder-side Motion Vector Refinement: 0: disabled, 1: enabled @@ -121,7 +121,7 @@ ChromaTS : 0 # Chroma transform skip: 0: disabled, 1: TransformSkipLog2MaxSize : 3 # Fast options -QtbttExtraFast : 3 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled +QtbttExtraFast : 7 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled ContentBasedFastQtbt : 1 # Signal based QTBT speed-up: 0: disabled, 1: enabled PBIntraFast : 1 # Fast assertion if the intra mode is probable: 0: disabled, 1: enabled FastMrg : 2 # Fast methods for inter merge: 0: disabled, 1: vtm, 2: fast @@ -132,5 +132,7 @@ FastInferMerge : 4 # Fast method to skip Inter/Intra modes. ECU : 1 # Early CU setting IntegerET : 1 # Enable early termination for integer motion search IntraEstDecBit : 3 # Test every eight intra directional mode in the first pass +NumIntraModesFullRD : 1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 1 # Reduce modes for chroma full RD intra search diff --git a/cfg/experimental/lowdelay_medium.cfg b/cfg/experimental/lowdelay_medium.cfg index 6d923983b..c23ddfc94 100644 --- a/cfg/experimental/lowdelay_medium.cfg +++ b/cfg/experimental/lowdelay_medium.cfg @@ -121,8 +121,8 @@ ChromaTS : 0 # Chroma transform skip: 0: disabled, 1: TransformSkipLog2MaxSize : 4 # Fast options -QtbttExtraFast : 2 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled -ContentBasedFastQtbt : 1 # Signal based QTBT speed-up: 0: disabled, 1: enabled +QtbttExtraFast : 3 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled +ContentBasedFastQtbt : 0 # Signal based QTBT speed-up: 0: disabled, 1: enabled PBIntraFast : 1 # Fast assertion if the intra mode is probable: 0: disabled, 1: enabled FastMrg : 2 # Fast methods for inter merge: 0: disabled, 1: vtm, 2: fast FastLocalDualTreeMode : 2 # Fast intra pass coding for local dual-tree in intra coding region: 0: disable, 1: use threshold, 2: one intra mode only @@ -132,5 +132,7 @@ FastInferMerge : 0 # Fast method to skip Inter/Intra modes. ECU : 0 # Early CU setting IntegerET : 0 # Enable early termination for integer motion search IntraEstDecBit : 2 # Test every fourth intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 0 # Reduce modes for chroma full RD intra search diff --git a/cfg/experimental/lowdelay_slow.cfg b/cfg/experimental/lowdelay_slow.cfg index 4753b2889..05ec26d6a 100644 --- a/cfg/experimental/lowdelay_slow.cfg +++ b/cfg/experimental/lowdelay_slow.cfg @@ -85,7 +85,7 @@ DMVR : 1 # Decoder-side Motion Vector Refinement: EncDbOpt : 2 # Encoder optimization with deblocking filter 1:default 2:fast Geo : 1 # Geometric partitioning mode: 0: disabled, 1: vtm, 2: good quality, 3: fast IMV : 1 # Adaptive MV precision Mode (IMV): 0: disabled, 1:vtm, 2-7: fast modes -ISP : 3 # Intra subpartitions: 0: disabled, 1: enabled, 2: fast, 3: faster +ISP : 1 # Intra subpartitions: 0: disabled, 1: enabled, 2: fast, 3: faster JointCbCr : 1 # Joint coding of chroma residuals: 0: disabled, 1: enabled LFNST : 1 # LFNST: 0: disabled, 1: enabled LMChroma : 1 # LMChroma prediction: 0: disabled, 1: enabled @@ -97,7 +97,7 @@ MCTF : 2 # GOP based temporal filter (0:off, 1:fil MCTFSpeed : 0 # MCTF Fast Mode (0:best quality .. 4:fast) MCTFFutureReference : 0 # Enable referencing of future frames in the GOP based temporal filter. This is typically disabled for Low Delay configurations MIP : 1 # Matrix-based intra prediction: 0: disabled, 1: enabled -FastMIP : 4 # Fast encoder search for MIP 0: disable, 1:vtm, 2-4: fast +FastMIP : 0 # Fast encoder search for MIP 0: disable, 1:vtm, 2-4: fast MMVD : 3 # Merge mode with Motion Vector Difference: 0: disabled, 1: vtm, 2-4 fast modes MRL : 1 # MultiRefernceLines MTS : 0 # Multiple transform selection: 0: disabled, 1: enabled @@ -132,5 +132,7 @@ FastInferMerge : 0 # Fast method to skip Inter/Intra modes. ECU : 0 # Early CU setting IntegerET : 0 # Enable early termination for integer motion search IntraEstDecBit : 1 # Test every second intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 0 # Reduce modes for chroma full RD intra search diff --git a/cfg/experimental/lowdelay_slower.cfg b/cfg/experimental/lowdelay_slower.cfg index 9ad0f85f8..afba9247a 100644 --- a/cfg/experimental/lowdelay_slower.cfg +++ b/cfg/experimental/lowdelay_slower.cfg @@ -132,5 +132,7 @@ FastInferMerge : 0 # Fast method to skip Inter/Intra modes. ECU : 0 # Early CU setting IntegerET : 0 # Enable early termination for integer motion search IntraEstDecBit : 1 # Test every second intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 0 # Reduce modes for chroma full RD intra search diff --git a/cfg/randomaccess_fast.cfg b/cfg/randomaccess_fast.cfg index 5c2f10c12..eb4a26037 100644 --- a/cfg/randomaccess_fast.cfg +++ b/cfg/randomaccess_fast.cfg @@ -99,7 +99,7 @@ MaxNumMergeCand : 6 # Maximum number of merge candidates Affine : 2 # Affine prediction: 0: disabled, 1: vtm, 2: fast ALF : 1 # Adpative Loop Filter: 0: disabled, 1: enabled ALFSpeed : 1 # ALF speed (skip filtering of non-referenced frames) [0-1] -AllowDisFracMMVD : 0 # Disable fractional MVD in MMVD mode adaptively +AllowDisFracMMVD : 1 # Disable fractional MVD in MMVD mode adaptively BCW : 0 # Enable Generalized Bi-prediction(Bcw) 0: disabled, 1: enabled, 2: fast BIO : 1 # Bi-directional optical flow: 0: disabled, 1: enabled CCALF : 1 # Cross-component Adaptive Loop Filter: 0: disabled, 1: enabled @@ -110,7 +110,7 @@ EncDbOpt : 0 # Encoder optimization with deblocking fi Geo : 0 # Geometric partitioning mode: 0: disabled, 1: vtm, 2: good quality, 3: fast IMV : 5 # Adaptive MV precision Mode (IMV): 0: disabled, 1:vtm, 2-7: fast modes ISP : 0 # Intra subpartitions: 0: disabled, 1: enabled, 2: fast, 3: faster -JointCbCr : 0 # Joint coding of chroma residuals: 0: disabled, 1: enabled +JointCbCr : 1 # Joint coding of chroma residuals: 0: disabled, 1: enabled LFNST : 1 # LFNST: 0: disabled, 1: enabled LMChroma : 1 # LMChroma prediction: 0: disabled, 1: enabled LMCSEnable : 2 # LMCS: 0: disable, 1:enable, 2: use SCC detection to disable for screen coded content @@ -145,7 +145,7 @@ ChromaTS : 0 # Chroma transform skip: 0: disabled, 1: TransformSkipLog2MaxSize : 4 # Fast options -QtbttExtraFast : 2 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled +QtbttExtraFast : 3 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled ContentBasedFastQtbt : 1 # Signal based QTBT speed-up: 0: disabled, 1: enabled PBIntraFast : 1 # Fast assertion if the intra mode is probable: 0: disabled, 1: enabled FastMrg : 2 # Fast methods for inter merge: 0: disabled, 1: vtm, 2: fast @@ -155,6 +155,8 @@ FastIntraTools : 0 # Speedup intra tools: LFNST, ISP, MTS FastInferMerge : 2 # Fast method to skip Inter/Intra modes. 0: off, [1..4] speedups ECU : 1 # Early CU setting IntegerET : 0 # Enable early termination for integer motion search -IntraEstDecBit : 3 # Test every eight intra directional mode in the first pass +IntraEstDecBit : 2 # Test every eight intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 1 # Reduce modes for chroma full RD intra search diff --git a/cfg/randomaccess_faster.cfg b/cfg/randomaccess_faster.cfg index c86d5e3ed..a2a167b4d 100644 --- a/cfg/randomaccess_faster.cfg +++ b/cfg/randomaccess_faster.cfg @@ -97,12 +97,12 @@ MaxNumMergeCand : 6 # Maximum number of merge candidates # Tools configuration Affine : 0 # Affine prediction: 0: disabled, 1: vtm, 2: fast -ALF : 0 # Adpative Loop Filter: 0: disabled, 1: enabled -ALFSpeed : 0 # ALF speed (skip filtering of non-referenced frames) [0-1] +ALF : 1 # Adpative Loop Filter: 0: disabled, 1: enabled +ALFSpeed : 1 # ALF speed (skip filtering of non-referenced frames) [0-1] AllowDisFracMMVD : 0 # Disable fractional MVD in MMVD mode adaptively BCW : 0 # Enable Generalized Bi-prediction(Bcw) 0: disabled, 1: enabled, 2: fast BIO : 0 # Bi-directional optical flow: 0: disabled, 1: enabled -CCALF : 0 # Cross-component Adaptive Loop Filter: 0: disabled, 1: enabled +CCALF : 1 # Cross-component Adaptive Loop Filter: 0: disabled, 1: enabled CIIP : 0 # CIIP mode: 0: disable, 1: vtm, 2: fast, 3: faster DepQuant : 0 # Dependent quantization: 0: disabled, 1: enabled DMVR : 1 # Decoder-side Motion Vector Refinement: 0: disabled, 1: enabled @@ -145,7 +145,7 @@ ChromaTS : 0 # Chroma transform skip: 0: disabled, 1: TransformSkipLog2MaxSize : 3 # Fast options -QtbttExtraFast : 3 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled +QtbttExtraFast : 7 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled ContentBasedFastQtbt : 1 # Signal based QTBT speed-up: 0: disabled, 1: enabled PBIntraFast : 1 # Fast assertion if the intra mode is probable: 0: disabled, 1: enabled FastMrg : 2 # Fast methods for inter merge: 0: disabled, 1: vtm, 2: fast @@ -156,5 +156,7 @@ FastInferMerge : 4 # Fast method to skip Inter/Intra modes. ECU : 1 # Early CU setting IntegerET : 1 # Enable early termination for integer motion search IntraEstDecBit : 3 # Test every eight intra directional mode in the first pass +NumIntraModesFullRD : 1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 1 # Reduce modes for chroma full RD intra search diff --git a/cfg/randomaccess_medium.cfg b/cfg/randomaccess_medium.cfg index d2551cffe..4a419ffd7 100644 --- a/cfg/randomaccess_medium.cfg +++ b/cfg/randomaccess_medium.cfg @@ -145,8 +145,8 @@ ChromaTS : 0 # Chroma transform skip: 0: disabled, 1: TransformSkipLog2MaxSize : 4 # Fast options -QtbttExtraFast : 2 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled -ContentBasedFastQtbt : 1 # Signal based QTBT speed-up: 0: disabled, 1: enabled +QtbttExtraFast : 3 # Non-VTM compatible QTBTT speed-ups: 0: disabled, 1: enabled +ContentBasedFastQtbt : 0 # Signal based QTBT speed-up: 0: disabled, 1: enabled PBIntraFast : 1 # Fast assertion if the intra mode is probable: 0: disabled, 1: enabled FastMrg : 2 # Fast methods for inter merge: 0: disabled, 1: vtm, 2: fast FastLocalDualTreeMode : 1 # Fast intra pass coding for local dual-tree in intra coding region: 0: disable, 1: use threshold, 2: one intra mode only @@ -156,5 +156,7 @@ FastInferMerge : 0 # Fast method to skip Inter/Intra modes. ECU : 0 # Early CU setting IntegerET : 0 # Enable early termination for integer motion search IntraEstDecBit : 2 # Test every fourth intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 0 # Reduce modes for chroma full RD intra search diff --git a/cfg/randomaccess_slow.cfg b/cfg/randomaccess_slow.cfg index 006c425e3..0a364fa7c 100644 --- a/cfg/randomaccess_slow.cfg +++ b/cfg/randomaccess_slow.cfg @@ -109,7 +109,7 @@ DMVR : 1 # Decoder-side Motion Vector Refinement: EncDbOpt : 2 # Encoder optimization with deblocking filter 1:default 2:fast Geo : 1 # Geometric partitioning mode: 0: disabled, 1: vtm, 2: good quality, 3: fast IMV : 1 # Adaptive MV precision Mode (IMV): 0: disabled, 1:vtm, 2-7: fast modes -ISP : 3 # Intra subpartitions: 0: disabled, 1: enabled, 2: fast, 3: faster +ISP : 1 # Intra subpartitions: 0: disabled, 1: enabled, 2: fast, 3: faster JointCbCr : 1 # Joint coding of chroma residuals: 0: disabled, 1: enabled LFNST : 1 # LFNST: 0: disabled, 1: enabled LMChroma : 1 # LMChroma prediction: 0: disabled, 1: enabled @@ -121,7 +121,7 @@ MCTF : 2 # GOP based temporal filter (0:off, 1:fil MCTFSpeed : 0 # MCTF Fast Mode (0:best quality .. 4:fast) MCTFFutureReference : 1 # Enable referencing of future frames in the GOP based temporal filter. This is typically disabled for Low Delay configurations MIP : 1 # Matrix-based intra prediction: 0: disabled, 1: enabled -FastMIP : 4 # Fast encoder search for MIP 0: disable, 1:vtm, 2-4: fast +FastMIP : 0 # Fast encoder search for MIP 0: disable, 1:vtm, 2-4: fast MMVD : 3 # Merge mode with Motion Vector Difference: 0: disabled, 1: vtm, 2-4 fast modes MRL : 1 # MultiRefernceLines MTS : 0 # Multiple transform selection: 0: disabled, 1: enabled @@ -156,5 +156,7 @@ FastInferMerge : 0 # Fast method to skip Inter/Intra modes. ECU : 0 # Early CU setting IntegerET : 0 # Enable early termination for integer motion search IntraEstDecBit : 1 # Test every second intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 0 # Reduce modes for chroma full RD intra search diff --git a/cfg/randomaccess_slower.cfg b/cfg/randomaccess_slower.cfg index a5e3c8aac..74144a001 100644 --- a/cfg/randomaccess_slower.cfg +++ b/cfg/randomaccess_slower.cfg @@ -156,5 +156,7 @@ FastInferMerge : 0 # Fast method to skip Inter/Intra modes. ECU : 0 # Early CU setting IntegerET : 0 # Enable early termination for integer motion search IntraEstDecBit : 1 # Test every second intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 0 # Reduce modes for chroma full RD intra search diff --git a/cfg/randomaccess_tooltest.cfg b/cfg/randomaccess_tooltest.cfg index 2e7e15af7..c5510118e 100644 --- a/cfg/randomaccess_tooltest.cfg +++ b/cfg/randomaccess_tooltest.cfg @@ -156,5 +156,7 @@ FastInferMerge : 3 # Fast method to skip Inter/Intra modes. ECU : 1 # Early CU setting IntegerET : 1 # Enable early termination for integer motion search IntraEstDecBit : 3 # Test every eight intra directional mode in the first pass +NumIntraModesFullRD : -1 # Number modes for full RD intra search +ReduceIntraChromaModesFullRD : 0 # Reduce modes for chroma full RD intra search diff --git a/changelog.txt b/changelog.txt index b457050fe..f30a8c561 100644 --- a/changelog.txt +++ b/changelog.txt @@ -1,3 +1,33 @@ +///////////////////////////////////////// +tag 1.2.0 + +* libvvenc: + - added parameters: m_qtbttSpeedUpMode, m_numIntraModesFullRD, m_reduceIntraChromaModesFullRD, m_RCPass + - renamed parameters: m_bUseEarlyCU to m_useEarlyCU, m_dqThresholdVal to m_quantThresholdVal + - added IDR2 refresh type, which aligns the layout of the first intra period with others (using IDR_W_RADL rather than IDR_N_LP picture) + - added nlohmann_json as a third party lib (can be disabled with CMake variable VVENC_ENABLE_THIRDPARTY_JSON) + - redefined the presets + - improvements to single picture rate control + - added additional partitioning speedups + - improved linear ALF implementation (memory access patterns and SIMD) + - improved DMVR implementation + - improved error handling + - various cleanups and bugfixes + +* vvencapp: + - added command line parameters: + - rcstatsfile: defines the location of the to-be-written/to-be-read rate control statistics file + - pass: if != -1, defines which encoding pass is to be performed in case of 2-pass RC (requires rcstatsfile) + - added support for yuv420_10_packed (packed 10-bit YUV) raw bitstream layout + + +* vvencFFapp: + - added command line parameters: + - RCStatsFile, Pass (analogue to vvencapp) + - NumIntraModesFullRD, ReduceIntraChromaModesFullRD + - renamed command line parameters: DQThrVal to QuantThrVal + - added support for yuv420_10_packed (packed 10-bit YUV) raw bitstream layout (PYUV=1) + ///////////////////////////////////////// tag 1.1.0 diff --git a/include/apputils/VVEncAppCfg.h b/include/apputils/VVEncAppCfg.h index adb194f07..5daa6280e 100644 --- a/include/apputils/VVEncAppCfg.h +++ b/include/apputils/VVEncAppCfg.h @@ -70,10 +70,12 @@ class APPUTILS_DECL VVEncAppCfg : public vvenc_config std::string m_inputFileName; ///< source file name std::string m_bitstreamFileName; ///< output bitstream file std::string m_reconFileName; ///< output reconstruction file + std::string m_RCStatsFileName; ///< rate control statistics file vvencChromaFormat m_inputFileChromaFormat = VVENC_CHROMA_420; bool m_bClipInputVideoToRec709Range = false; bool m_bClipOutputVideoToRec709Range = false; - bool m_packedYUVMode = false; ///< If true, output 10-bit and 12-bit YUV data as 5-byte and 3-byte (respectively) packed YUV data + bool m_packedYUVInput = false; ///< If true, packed 10-bit YUV ( 4 samples packed into 5-bytes consecutively ) + bool m_packedYUVOutput = false; ///< If true, output 10-bit and 12-bit YUV data as 5-byte and 3-byte (respectively) packed YUV data bool m_decode = false; bool m_showVersion = false; @@ -89,8 +91,12 @@ class APPUTILS_DECL VVEncAppCfg : public vvenc_config public: bool parseCfg( int argc, char* argv[] ); ///< parse configuration fill member variables (simple app) bool parseCfgFF( int argc, char* argv[] ); ///< parse configuration fill member variables for FullFeature set (expert app) + bool checkCfg(); virtual std::string getConfigAsString( vvencMsgLevel eMsgLevel ) const; + +private: + bool xCheckCfg(); }; } // namespace diff --git a/include/vvenc/vvenc.h b/include/vvenc/vvenc.h index 6e47440ca..a444c4295 100644 --- a/include/vvenc/vvenc.h +++ b/include/vvenc/vvenc.h @@ -280,10 +280,11 @@ VVENC_DECL int vvenc_encoder_set_RecYUVBufferCallback(vvencEncoder *, void * ctx This method initializes the encoder instance in dependency to the encoder pass. \param[in] vvencEncoder pointer to opaque handler \param[in] pass number of current pass to init + \param[in] rate control statistics file name \retval int if non-zero an error occurred (see ErrorCodes), otherwise VVENC_OK indicates success. \pre None */ -VVENC_DECL int vvenc_init_pass( vvencEncoder *, int pass ); +VVENC_DECL int vvenc_init_pass( vvencEncoder *, int pass, const char * statsFName ); /* vvenc_encode This method encodes a picture. diff --git a/include/vvenc/vvencCfg.h b/include/vvenc/vvencCfg.h index 191aa5f6e..807204edc 100644 --- a/include/vvenc/vvencCfg.h +++ b/include/vvenc/vvencCfg.h @@ -439,6 +439,7 @@ typedef struct vvenc_config int m_RCTargetBitrate; int m_RCNumPasses; + int m_RCPass; vvencSegmentMode m_SegmentMode; @@ -696,6 +697,9 @@ typedef struct vvenc_config int m_quantThresholdVal; int m_qtbttSpeedUp; +#if 1//QTBTT_SPEED3 + int m_qtbttSpeedUpMode; +#endif int m_fastLocalDualTreeMode; @@ -722,6 +726,8 @@ typedef struct vvenc_config char m_summaryPicFilenameBase[VVENC_MAX_STRING_LEN]; // Base filename to use for producing summary picture output files. The actual filenames used will have I.txt, P.txt and B.txt appended. unsigned m_summaryVerboseness; // Specifies the level of the verboseness of the text output. int m_numIntraModesFullRD; // Number Modes for Full RD Intra Search + bool m_reduceIntraChromaModesFullRD; // Reduce Number Modes for Full RD Intra Chroma Search + }vvenc_config; diff --git a/source/App/vvencFFapp/EncApp.cpp b/source/App/vvencFFapp/EncApp.cpp index dd558ef11..553651f2d 100644 --- a/source/App/vvencFFapp/EncApp.cpp +++ b/source/App/vvencFFapp/EncApp.cpp @@ -111,10 +111,11 @@ bool EncApp::parseCfg( int argc, char* argv[]) */ int EncApp::encode() { - vvenc_config& vvencCfg = m_cEncAppCfg; - if( m_cEncAppCfg.m_decode ) + apputils::VVEncAppCfg& vvencCfg = m_cEncAppCfg; + + if( vvencCfg.m_decode ) { - return vvenc_decode_bitstream( m_cEncAppCfg.m_bitstreamFileName.c_str(), m_cEncAppCfg.m_traceFile, m_cEncAppCfg.m_traceRule ); + return vvenc_decode_bitstream( vvencCfg.m_bitstreamFileName.c_str(), vvencCfg.m_traceFile, vvencCfg.m_traceRule ); } // initialize encoder lib @@ -124,35 +125,21 @@ int EncApp::encode() return -1; } - int iRet = vvenc_encoder_open( m_encCtx, &vvencCfg ); + int iRet = vvenc_encoder_open( m_encCtx, &vvencCfg); if( 0 != iRet ) { - msgApp( VVENC_ERROR, vvenc_get_last_error( m_encCtx ) ); + msgApp( VVENC_ERROR, "open encoder failed: %s\n", vvenc_get_last_error( m_encCtx ) ); vvenc_encoder_close( m_encCtx ); return iRet; } - if ( ! m_cEncAppCfg.m_reconFileName.empty() ) - { - vvenc_encoder_set_RecYUVBufferCallback( m_encCtx, &this->m_yuvReconFile, outputYuv ); - } - - vvenc_get_config( m_encCtx, &vvencCfg ); // get the adapted config, because changes are needed for the yuv reader (m_MSBExtendedBitDepth) - - msgApp( VVENC_INFO, "%s", m_cEncAppCfg.getConfigAsString( vvencCfg.m_verbosity ).c_str()); - - if( !strcmp( m_cEncAppCfg.m_inputFileName.c_str(), "-" ) ) + // get the adapted config + vvenc_get_config( m_encCtx, &vvencCfg); + msgApp( VVENC_INFO, "%s", vvencCfg.getConfigAsString( vvencCfg.m_verbosity ).c_str() ); + printChromaFormat(); + if( ! strcmp( vvencCfg.m_inputFileName.c_str(), "-" ) ) { - if( m_cEncAppCfg.m_RCNumPasses > 1 ) - { - msgApp( VVENC_ERROR, " 2 pass rate control and reading from stdin is not supported yet\n" ); - vvenc_encoder_close( m_encCtx ); - return -1; - } - else - { - msgApp( VVENC_INFO, " trying to read from stdin\n" ); - } + msgApp( VVENC_INFO, " trying to read from stdin" ); } if( ! openFileIO() ) @@ -161,7 +148,10 @@ int EncApp::encode() return -1; } - printChromaFormat(); + if( ! vvencCfg.m_reconFileName.empty() ) + { + vvenc_encoder_set_RecYUVBufferCallback( m_encCtx, &this->m_yuvReconFile, outputYuv ); + } // create buffer for input YUV pic vvencYUVBuffer yuvInBuf; @@ -175,8 +165,8 @@ int EncApp::encode() vvenc_accessUnit_alloc_payload( &au, auSizeScale * vvencCfg.m_SourceWidth * vvencCfg.m_SourceHeight + 1024 ); // main loop - int tempRate = vvencCfg.m_FrameRate; - int tempScale = 1; + int tempRate = vvencCfg.m_FrameRate; + int tempScale = 1; switch( vvencCfg.m_FrameRate ) { case 23: tempRate = 24000; tempScale = 1001; break; @@ -185,14 +175,17 @@ int EncApp::encode() default: break; } - int framesRcvd = 0; - for( int pass = 0; pass < vvencCfg.m_RCNumPasses; pass++ ) + int framesRcvd = 0; + const int start = vvencCfg.m_RCPass > 0 ? vvencCfg.m_RCPass - 1 : 0; + const int end = vvencCfg.m_RCPass > 0 ? vvencCfg.m_RCPass : vvencCfg.m_RCNumPasses; + for( int pass = start; pass < end; pass++ ) { // open input YUV - if( m_yuvInputFile.open( m_cEncAppCfg.m_inputFileName, false, vvencCfg.m_inputBitDepth[0], vvencCfg.m_MSBExtendedBitDepth[0], vvencCfg.m_internalBitDepth[0], - m_cEncAppCfg.m_inputFileChromaFormat, vvencCfg.m_internChromaFormat, m_cEncAppCfg.m_bClipInputVideoToRec709Range, false )) - { - msgApp( VVENC_ERROR, "%s", m_yuvInputFile.getLastError().c_str() ); + + if( m_yuvInputFile.open( vvencCfg.m_inputFileName, false, vvencCfg.m_inputBitDepth[0], vvencCfg.m_MSBExtendedBitDepth[0], vvencCfg.m_internalBitDepth[0], + vvencCfg.m_inputFileChromaFormat, vvencCfg.m_internChromaFormat, vvencCfg.m_bClipInputVideoToRec709Range, vvencCfg.m_packedYUVInput )) + { + msgApp( VVENC_ERROR, "open input file failed: %s\n", m_yuvInputFile.getLastError().c_str() ); vvenc_encoder_close( m_encCtx ); vvenc_YUVBuffer_free_buffer( &yuvInBuf ); vvenc_accessUnit_free_payload( &au ); @@ -207,7 +200,16 @@ int EncApp::encode() } // initialize encoder pass - vvenc_init_pass( m_encCtx, pass ); + iRet = vvenc_init_pass( m_encCtx, pass, vvencCfg.m_RCStatsFileName.c_str() ); + if( iRet != 0 ) + { + msgApp( VVENC_ERROR, "init pass failed: %s\n", vvenc_get_last_error(m_encCtx) ); + vvenc_encoder_close( m_encCtx ); + vvenc_YUVBuffer_free_buffer( &yuvInBuf ); + vvenc_accessUnit_free_payload( &au ); + closeFileIO(); + return -1; + } // loop over input YUV data bool inputDone = false; @@ -225,7 +227,7 @@ int EncApp::encode() { if( 0 != m_yuvInputFile.readYuvBuf( yuvInBuf, inputDone ) ) { - msgApp( VVENC_ERROR, "read file failed: %s\n", m_yuvInputFile.getLastError().c_str() ); + msgApp( VVENC_ERROR, "read input file failed: %s\n", m_yuvInputFile.getLastError().c_str() ); vvenc_encoder_close( m_encCtx ); vvenc_YUVBuffer_free_buffer( &yuvInBuf ); vvenc_accessUnit_free_payload( &au ); @@ -253,7 +255,7 @@ int EncApp::encode() iRet = vvenc_encode( m_encCtx, inputPacket, &au, &encDone ); if( 0 != iRet ) { - msgApp( VVENC_ERROR, "encoding failed: err code %d - %s\n", iRet, vvenc_get_last_error(m_encCtx) ); + msgApp( VVENC_ERROR, "encoding failed: err code %d: %s\n", iRet, vvenc_get_last_error(m_encCtx) ); encDone = true; inputDone = true; } @@ -319,9 +321,9 @@ bool EncApp::openFileIO() if( ! m_cEncAppCfg.m_reconFileName.empty() ) { if( m_yuvReconFile.open( m_cEncAppCfg.m_reconFileName, true, m_cEncAppCfg.m_outputBitDepth[0], m_cEncAppCfg.m_outputBitDepth[0], m_cEncAppCfg.m_internalBitDepth[0], - m_cEncAppCfg.m_internChromaFormat, m_cEncAppCfg.m_internChromaFormat, m_cEncAppCfg.m_bClipOutputVideoToRec709Range, m_cEncAppCfg.m_packedYUVMode )) + m_cEncAppCfg.m_internChromaFormat, m_cEncAppCfg.m_internChromaFormat, m_cEncAppCfg.m_bClipOutputVideoToRec709Range, m_cEncAppCfg.m_packedYUVOutput )) { - msgApp( VVENC_ERROR, "%s", m_yuvReconFile.getLastError().c_str() ); + msgApp( VVENC_ERROR, "open reconstruction file failed: %s\n", m_yuvReconFile.getLastError().c_str() ); return false; } } @@ -330,7 +332,7 @@ bool EncApp::openFileIO() m_bitstream.open( m_cEncAppCfg.m_bitstreamFileName.c_str(), fstream::binary | fstream::out ); if( ! m_bitstream ) { - msgApp( VVENC_ERROR, "Failed to open bitstream file %s for writing\n", m_cEncAppCfg.m_bitstreamFileName.c_str() ); + msgApp( VVENC_ERROR, "open bitstream file failed\n" ); return false; } @@ -369,7 +371,7 @@ void EncApp::printChromaFormat() case VVENC_CHROMA_420: ssOut << " 420"; break; case VVENC_CHROMA_422: ssOut << " 422"; break; case VVENC_CHROMA_444: ssOut << " 444"; break; - default: msgApp( VVENC_ERROR, "invalid chroma format" ); + default: msgApp( VVENC_ERROR, "invalid chroma format\n" ); return; } ssOut << std::endl; @@ -381,7 +383,7 @@ void EncApp::printChromaFormat() case VVENC_CHROMA_420: ssOut << " 420"; break; case VVENC_CHROMA_422: ssOut << " 422"; break; case VVENC_CHROMA_444: ssOut << " 444"; break; - default: msgApp( VVENC_ERROR, "invalid chroma format" ); + default: msgApp( VVENC_ERROR, "invalid chroma format\n" ); return; } msgApp( VVENC_DETAILS, "%s\n", ssOut.str().c_str() ); @@ -389,4 +391,3 @@ void EncApp::printChromaFormat() } //! \} - diff --git a/source/App/vvencapp/vvencapp.cpp b/source/App/vvencapp/vvencapp.cpp index 629496bbe..8bb5a5196 100644 --- a/source/App/vvencapp/vvencapp.cpp +++ b/source/App/vvencapp/vvencapp.cpp @@ -90,14 +90,14 @@ void printVVEncErrorMsg( const std::string cAppname, const std::string cMessage, std::cout << cAppname << " [error]: " << cMessage << ", "; switch( code ) { - case VVENC_ERR_CPU : std::cout << "SSE 4.1 cpu support required."; break; - case VVENC_ERR_PARAMETER : std::cout << "invalid parameter."; break; - case VVENC_ERR_NOT_SUPPORTED : std::cout << "unsupported request."; break; - default : std::cout << "error " << code; break; + case VVENC_ERR_CPU : std::cout << "SSE 4.1 cpu support required"; break; + case VVENC_ERR_PARAMETER : std::cout << "invalid parameter"; break; + case VVENC_ERR_NOT_SUPPORTED : std::cout << "unsupported request"; break; + default : std::cout << "code " << code; break; }; if( !cErr.empty() ) { - std::cout << " - " << cErr; + std::cout << ": " << cErr; } std::cout << std::endl; } @@ -131,14 +131,10 @@ int main( int argc, char* argv[] ) cAppname = cAppname.substr(iPos+1 ); } - int iRet = 0; - vvenc_set_logging_callback( nullptr, msgFnc ); - std::string cInputFile; - std::string cOutputfile = ""; - - apputils::VVEncAppCfg vvencappCfg; ///< encoder configuration + // default encoder configuration + apputils::VVEncAppCfg vvencappCfg; vvenc_init_default( &vvencappCfg, 1920, 1080, 60, 0, 32, vvencPresetMode::VVENC_MEDIUM ); // parse configuration @@ -146,51 +142,27 @@ int main( int argc, char* argv[] ) { return 1; } + // assign verbosity used for encoder output g_verbosity = vvencappCfg.m_verbosity; - if( vvencappCfg.m_showVersion ) + // show version + if( vvencappCfg.m_showVersion + || ( vvencappCfg.m_verbosity > VVENC_SILENT && vvencappCfg.m_verbosity < VVENC_NOTICE ) ) { std::cout << cAppname << " version " << vvenc_get_version()<< std::endl; - return 0; - } - - if( !strcmp( vvencappCfg.m_inputFileName.c_str(), "-" ) ) - { - if( vvencappCfg.m_RCNumPasses > 1 ) - { - std::cout << cAppname << " [error]: 2 pass rate control and reading from stdin is not supported yet" << std::endl; - return -1; - } - else - { - std::cout << cAppname << " trying to read from stdin" << std::endl; - } - } - - if( vvencappCfg.m_bitstreamFileName.empty() ) - { - std::cout << cAppname << " [error]: no output bitstream file given." << std::endl; - return -1; - } - - cInputFile = vvencappCfg.m_inputFileName; - cOutputfile = vvencappCfg.m_bitstreamFileName; - - if( vvencappCfg.m_verbosity > VVENC_SILENT && vvencappCfg.m_verbosity < VVENC_NOTICE ) - { - std::cout << "-------------------" << std::endl; - std::cout << cAppname << " version " << vvenc_get_version() << std::endl; + if( vvencappCfg.m_showVersion ) + return 0; } + // initialize the encoder vvencEncoder *enc = vvenc_encoder_create(); if( nullptr == enc ) { return -1; } - // initialize the encoder - iRet = vvenc_encoder_open( enc, &vvencappCfg ); + int iRet = vvenc_encoder_open( enc, &vvencappCfg ); if( 0 != iRet ) { printVVEncErrorMsg( cAppname, "cannot create encoder", iRet, vvenc_get_last_error( enc ) ); @@ -198,28 +170,28 @@ int main( int argc, char* argv[] ) return iRet; } - if( vvencappCfg.m_verbosity > VVENC_WARNING ) + // get the adapted config + vvenc_get_config( enc, &vvencappCfg ); + if( vvencappCfg.m_verbosity >= VVENC_INFO ) { std::cout << cAppname << ": " << vvenc_get_enc_information( enc ) << std::endl; } - - vvenc_get_config( enc, &vvencappCfg ); // get the adapted config, because changes are needed for the yuv reader (m_MSBExtendedBitDepth) - if( vvencappCfg.m_verbosity >= VVENC_INFO ) { std::cout << vvencappCfg.getConfigAsString( vvencappCfg.m_verbosity ) << std::endl; } + if( vvencappCfg.m_verbosity >= VVENC_INFO && ! strcmp( vvencappCfg.m_inputFileName.c_str(), "-" ) ) + { + std::cout << cAppname << " trying to read from stdin" << std::endl; + } // open output file std::ofstream cOutBitstream; - if( !cOutputfile.empty() ) + cOutBitstream.open( vvencappCfg.m_bitstreamFileName, std::ios::out | std::ios::binary | std::ios::trunc ); + if( ! cOutBitstream.is_open() ) { - cOutBitstream.open( cOutputfile.c_str(), std::ios::out | std::ios::binary | std::ios::trunc); - if( !cOutBitstream.is_open() ) - { - std::cout << cAppname << " [error]: failed to open output file " << cOutputfile << std::endl; - return -1; - } + std::cout << cAppname << " [error]: failed to open output file " << vvencappCfg.m_bitstreamFileName << std::endl; + return -1; } // --- allocate memory for output packets @@ -242,8 +214,8 @@ int main( int argc, char* argv[] ) } // calc temp. rate/scale - int temporalRate = vvencappCfg.m_FrameRate; - int temporalScale = 1; + int temporalRate = vvencappCfg.m_FrameRate; + int temporalScale = 1; switch( vvencappCfg.m_FrameRate ) { @@ -254,22 +226,27 @@ int main( int argc, char* argv[] ) } unsigned int uiFrames = 0; - for( int pass = 0; pass < vvencappCfg.m_RCNumPasses; pass++ ) + const int start = vvencappCfg.m_RCPass > 0 ? vvencappCfg.m_RCPass - 1 : 0; + const int end = vvencappCfg.m_RCPass > 0 ? vvencappCfg.m_RCPass : vvencappCfg.m_RCNumPasses; + for( int pass = start; pass < end; pass++ ) { // initialize the encoder pass - iRet = vvenc_init_pass( enc, pass ); + iRet = vvenc_init_pass( enc, pass, vvencappCfg.m_RCStatsFileName.c_str() ); if( 0 != iRet ) { - printVVEncErrorMsg( cAppname, "cannot init encoder", iRet, vvenc_get_last_error( enc ) ); + printVVEncErrorMsg( cAppname, "init pass failed", iRet, vvenc_get_last_error( enc ) ); + vvenc_YUVBuffer_free_buffer( &cYUVInputBuffer ); + vvenc_accessUnit_free_payload( &AU ); + vvenc_encoder_close( enc ); return iRet; } // open the input file apputils::YuvFileIO cYuvFileInput; - if( 0 != cYuvFileInput.open( cInputFile, false, vvencappCfg.m_inputBitDepth[0], vvencappCfg.m_MSBExtendedBitDepth[0], vvencappCfg.m_internalBitDepth[0], - vvencappCfg.m_inputFileChromaFormat, vvencappCfg.m_internChromaFormat, vvencappCfg.m_bClipOutputVideoToRec709Range, false ) ) + if( 0 != cYuvFileInput.open( vvencappCfg.m_inputFileName, false, vvencappCfg.m_inputBitDepth[0], vvencappCfg.m_MSBExtendedBitDepth[0], vvencappCfg.m_internalBitDepth[0], + vvencappCfg.m_inputFileChromaFormat, vvencappCfg.m_internChromaFormat, vvencappCfg.m_bClipOutputVideoToRec709Range, vvencappCfg.m_packedYUVInput ) ) { - std::cout << cAppname << " [error]: failed to open input file " << cInputFile << std::endl; + std::cout << cAppname << " [error]: failed to open input file " << vvencappCfg.m_inputFileName << std::endl; vvenc_YUVBuffer_free_buffer( &cYUVInputBuffer ); vvenc_accessUnit_free_payload( &AU ); vvenc_encoder_close( enc ); @@ -389,4 +366,3 @@ int main( int argc, char* argv[] ) return 0; } - diff --git a/source/Lib/CommonLib/AdaptiveLoopFilter.cpp b/source/Lib/CommonLib/AdaptiveLoopFilter.cpp index 26afcf36d..b14a5646a 100644 --- a/source/Lib/CommonLib/AdaptiveLoopFilter.cpp +++ b/source/Lib/CommonLib/AdaptiveLoopFilter.cpp @@ -309,102 +309,101 @@ const int AdaptiveLoopFilter::m_classToFilterMapping[NUM_FIXED_FILTER_SETS][MAX_ { 16, 31, 32, 15, 60, 30, 4, 17, 19, 25, 22, 20, 4, 53, 19, 21, 22, 46, 25, 55, 26, 48, 63, 58, 55 }, }; -void AdaptiveLoopFilter::applyCcAlfFilter(CodingStructure &cs, ComponentID compID, const PelBuf &dstBuf, - const PelUnitBuf &recYuvExt, uint8_t *filterControl, - const short filterSet[MAX_NUM_CC_ALF_FILTERS][MAX_NUM_CC_ALF_CHROMA_COEFF], - const int selectedFilterIdx) +void AdaptiveLoopFilter::applyCcAlfFilterCTU( CodingStructure &cs, ComponentID compID, int ctuRsAddr) { - bool clipTop = false, clipBottom = false, clipLeft = false, clipRight = false; - int numHorVirBndry = 0, numVerVirBndry = 0; - int horVirBndryPos[] = { 0, 0, 0 }; - int verVirBndryPos[] = { 0, 0, 0 }; - - const ClpRngs& clpRngs = cs.slice->clpRngs; - - int ctuIdx = 0; - for( int yPos = 0; yPos < m_picHeight; yPos += m_maxCUHeight ) + if( m_ccAlfFilterParam.ccAlfFilterEnabled[(int)compID - 1] ) { - for( int xPos = 0; xPos < m_picWidth; xPos += m_maxCUWidth ) + const PreCalcValues& pcv = *cs.pcv; + const int xPos = ( ctuRsAddr % pcv.widthInCtus ) << pcv.maxCUSizeLog2; + const int yPos = ( ctuRsAddr / pcv.widthInCtus ) << pcv.maxCUSizeLog2; + const uint8_t *filterControl = m_ccAlfFilterControl[(int)compID - 1]; + + int filterIdx = + ( filterControl == nullptr ) + ? -1/*selectedFilterIdx*/ + : filterControl[( yPos >> cs.pcv->maxCUSizeLog2 ) * cs.pcv->widthInCtus + ( xPos >> cs.pcv->maxCUSizeLog2 )]; + bool skipFiltering = ( filterControl != nullptr && filterIdx == 0 ) ? true : false; + if( !skipFiltering ) { - int filterIdx = - (filterControl == nullptr) - ? selectedFilterIdx - : filterControl[(yPos >> cs.pcv->maxCUSizeLog2) * cs.pcv->widthInCtus + (xPos >> cs.pcv->maxCUSizeLog2)]; - bool skipFiltering = (filterControl != nullptr && filterIdx == 0) ? true : false; - if (!skipFiltering) - { - if (filterControl != nullptr) - filterIdx--; - const int16_t *filterCoeff = filterSet[filterIdx]; + const ClpRngs& clpRngs = cs.slice->clpRngs; + const PelBuf& dstBuf = cs.getRecoBuf().get( compID ); + const PelUnitBuf& recYuvExt = m_tempBuf.getBuf( cs.area ); - const int width = (xPos + m_maxCUWidth > m_picWidth) ? (m_picWidth - xPos) : m_maxCUWidth; - const int height = (yPos + m_maxCUHeight > m_picHeight) ? (m_picHeight - yPos) : m_maxCUHeight; - const int chromaScaleX = getComponentScaleX(compID, m_chromaFormat); - const int chromaScaleY = getComponentScaleY(compID, m_chromaFormat); + bool clipTop = false, clipBottom = false, clipLeft = false, clipRight = false; + int numHorVirBndry = 0, numVerVirBndry = 0; + int horVirBndryPos[] = { 0, 0, 0 }; + int verVirBndryPos[] = { 0, 0, 0 }; + if( filterControl != nullptr ) + filterIdx--; - int rasterSliceAlfPad = 0; - if (isCrossedByVirtualBoundaries(cs, xPos, yPos, width, height, clipTop, clipBottom, clipLeft, clipRight, - numHorVirBndry, numVerVirBndry, horVirBndryPos, verVirBndryPos, - rasterSliceAlfPad)) + const int16_t* filterCoeff = m_ccAlfFilterParam.ccAlfCoeff[(int)compID - 1][filterIdx]; //filterSet[filterIdx]; + + const int width = ( xPos + pcv.maxCUSize > pcv.lumaWidth ) ? ( pcv.lumaWidth - xPos ) : pcv.maxCUSize; + const int height = ( yPos + pcv.maxCUSize > pcv.lumaHeight ) ? ( pcv.lumaHeight - yPos ) : pcv.maxCUSize; + const int chromaScaleX = getComponentScaleX( compID, m_chromaFormat ); + const int chromaScaleY = getComponentScaleY( compID, m_chromaFormat ); + + int rasterSliceAlfPad = 0; + if( isCrossedByVirtualBoundaries( cs, xPos, yPos, width, height, clipTop, clipBottom, clipLeft, clipRight, + numHorVirBndry, numVerVirBndry, horVirBndryPos, verVirBndryPos, + rasterSliceAlfPad ) ) + { + int yStart = yPos; + for( int i = 0; i <= numHorVirBndry; i++ ) { - int yStart = yPos; - for (int i = 0; i <= numHorVirBndry; i++) + const int yEnd = i == numHorVirBndry ? yPos + height : horVirBndryPos[i]; + const int h = yEnd - yStart; + const bool clipT = ( i == 0 && clipTop ) || ( i > 0 ) || ( yStart == 0 ); + const bool clipB = ( i == numHorVirBndry && clipBottom ) || ( i < numHorVirBndry ) || ( yEnd == m_picHeight ); + int xStart = xPos; + for( int j = 0; j <= numVerVirBndry; j++ ) { - const int yEnd = i == numHorVirBndry ? yPos + height : horVirBndryPos[i]; - const int h = yEnd - yStart; - const bool clipT = (i == 0 && clipTop) || (i > 0) || (yStart == 0); - const bool clipB = (i == numHorVirBndry && clipBottom) || (i < numHorVirBndry) || (yEnd == m_picHeight); - int xStart = xPos; - for (int j = 0; j <= numVerVirBndry; j++) + const int xEnd = j == numVerVirBndry ? xPos + width : verVirBndryPos[j]; + const int w = xEnd - xStart; + const bool clipL = ( j == 0 && clipLeft ) || ( j > 0 ) || ( xStart == 0 ); + const bool clipR = ( j == numVerVirBndry && clipRight ) || ( j < numVerVirBndry ) || ( xEnd == m_picWidth ); + const int wBuf = w + ( clipL ? 0 : MAX_ALF_PADDING_SIZE ) + ( clipR ? 0 : MAX_ALF_PADDING_SIZE ); + const int hBuf = h + ( clipT ? 0 : MAX_ALF_PADDING_SIZE ) + ( clipB ? 0 : MAX_ALF_PADDING_SIZE ); + PelUnitBuf buf = m_tempBuf2.subBuf( UnitArea( cs.area.chromaFormat, Area( 0, 0, wBuf, hBuf ) ) ); + buf.copyFrom( recYuvExt.subBuf( + UnitArea( cs.area.chromaFormat, Area( xStart - ( clipL ? 0 : MAX_ALF_PADDING_SIZE ), + yStart - ( clipT ? 0 : MAX_ALF_PADDING_SIZE ), wBuf, hBuf ) ) ) ); + // pad top-left unavailable samples for raster slice + if( xStart == xPos && yStart == yPos && ( rasterSliceAlfPad & 1 ) ) { - const int xEnd = j == numVerVirBndry ? xPos + width : verVirBndryPos[j]; - const int w = xEnd - xStart; - const bool clipL = (j == 0 && clipLeft) || (j > 0) || (xStart == 0); - const bool clipR = (j == numVerVirBndry && clipRight) || (j < numVerVirBndry) || (xEnd == m_picWidth); - const int wBuf = w + (clipL ? 0 : MAX_ALF_PADDING_SIZE) + (clipR ? 0 : MAX_ALF_PADDING_SIZE); - const int hBuf = h + (clipT ? 0 : MAX_ALF_PADDING_SIZE) + (clipB ? 0 : MAX_ALF_PADDING_SIZE); - PelUnitBuf buf = m_tempBuf2.subBuf(UnitArea(cs.area.chromaFormat, Area(0, 0, wBuf, hBuf))); - buf.copyFrom(recYuvExt.subBuf( - UnitArea(cs.area.chromaFormat, Area(xStart - (clipL ? 0 : MAX_ALF_PADDING_SIZE), - yStart - (clipT ? 0 : MAX_ALF_PADDING_SIZE), wBuf, hBuf)))); - // pad top-left unavailable samples for raster slice - if (xStart == xPos && yStart == yPos && (rasterSliceAlfPad & 1)) - { - buf.padBorderPel(MAX_ALF_PADDING_SIZE, 1); - } - - // pad bottom-right unavailable samples for raster slice - if (xEnd == xPos + width && yEnd == yPos + height && (rasterSliceAlfPad & 2)) - { - buf.padBorderPel(MAX_ALF_PADDING_SIZE, 2); - } - buf.extendBorderPel(MAX_ALF_PADDING_SIZE); - buf = buf.subBuf(UnitArea( - cs.area.chromaFormat, Area(clipL ? 0 : MAX_ALF_PADDING_SIZE, clipT ? 0 : MAX_ALF_PADDING_SIZE, w, h))); + buf.padBorderPel( MAX_ALF_PADDING_SIZE, 1 ); + } - const Area blkSrc(0, 0, w, h); + // pad bottom-right unavailable samples for raster slice + if( xEnd == xPos + width && yEnd == yPos + height && ( rasterSliceAlfPad & 2 ) ) + { + buf.padBorderPel( MAX_ALF_PADDING_SIZE, 2 ); + } + buf.extendBorderPel( MAX_ALF_PADDING_SIZE ); + buf = buf.subBuf( UnitArea( + cs.area.chromaFormat, Area( clipL ? 0 : MAX_ALF_PADDING_SIZE, clipT ? 0 : MAX_ALF_PADDING_SIZE, w, h ) ) ); - const Area blkDst(xStart >> chromaScaleX, yStart >> chromaScaleY, w >> chromaScaleX, h >> chromaScaleY); - m_filterCcAlf(dstBuf, buf, blkDst, blkSrc, compID, filterCoeff, clpRngs, cs, m_alfVBLumaCTUHeight, - m_alfVBLumaPos); + const Area blkSrc( 0, 0, w, h ); - xStart = xEnd; - } + const Area blkDst( xStart >> chromaScaleX, yStart >> chromaScaleY, w >> chromaScaleX, h >> chromaScaleY ); + m_filterCcAlf( dstBuf, buf, blkDst, blkSrc, compID, filterCoeff, clpRngs, cs, m_alfVBLumaCTUHeight, + m_alfVBLumaPos ); - yStart = yEnd; + xStart = xEnd; } - } - else - { - Area blkDst(xPos >> chromaScaleX, yPos >> chromaScaleY, width >> chromaScaleX, height >> chromaScaleY); - Area blkSrc(xPos, yPos, width, height); - m_filterCcAlf(dstBuf, recYuvExt, blkDst, blkSrc, compID, filterCoeff, clpRngs, cs, m_alfVBLumaCTUHeight, - m_alfVBLumaPos); + yStart = yEnd; } } - ctuIdx++; + else + { + Area blkDst( xPos >> chromaScaleX, yPos >> chromaScaleY, width >> chromaScaleX, height >> chromaScaleY ); + Area blkSrc( xPos, yPos, width, height ); + + m_filterCcAlf( dstBuf, recYuvExt, blkDst, blkSrc, compID, filterCoeff, clpRngs, cs, m_alfVBLumaCTUHeight, + m_alfVBLumaPos ); + } } } } diff --git a/source/Lib/CommonLib/AdaptiveLoopFilter.h b/source/Lib/CommonLib/AdaptiveLoopFilter.h index 5b48f94bd..cdd8fb87e 100644 --- a/source/Lib/CommonLib/AdaptiveLoopFilter.h +++ b/source/Lib/CommonLib/AdaptiveLoopFilter.h @@ -125,10 +125,7 @@ class AdaptiveLoopFilter void (*m_filterCcAlf) ( const PelBuf &dstBuf, const CPelUnitBuf &recSrc, const Area &blkDst, const Area &blkSrc, const ComponentID compId, const int16_t *filterCoeff, const ClpRngs &clpRngs, CodingStructure &cs, int vbCTUHeight, int vbPos); - void applyCcAlfFilter ( CodingStructure &cs, ComponentID compID, const PelBuf &dstBuf, const PelUnitBuf &recYuvExt, - uint8_t * filterControl, - const short filterSet[MAX_NUM_CC_ALF_FILTERS][MAX_NUM_CC_ALF_CHROMA_COEFF], - const int selectedFilterIdx); + void applyCcAlfFilterCTU ( CodingStructure& cs, ComponentID compID, int ctuRsAddr ); CcAlfFilterParam &getCcAlfFilterParam() { return m_ccAlfFilterParam; } uint8_t* getCcAlfControlIdc ( const ComponentID compID) { return m_ccAlfFilterControl[compID-1]; } void (*m_filter5x5Blk[2]) ( const AlfClassifier *classifier, const PelUnitBuf& recDst, const CPelUnitBuf& recSrc, diff --git a/source/Lib/CommonLib/Picture.cpp b/source/Lib/CommonLib/Picture.cpp index 94b350154..039e6317b 100644 --- a/source/Lib/CommonLib/Picture.cpp +++ b/source/Lib/CommonLib/Picture.cpp @@ -186,6 +186,9 @@ Picture::Picture() , useScBDPCM ( false ) , useScIBC ( false ) , useScLMCS ( false ) +#if QTBTT_SPEED3 + , useQtbttSpeedUpMode( 0 ) +#endif , seqBaseQp ( 0 ) , actualHeadBits ( 0 ) , actualTotalBits ( 0 ) diff --git a/source/Lib/CommonLib/Picture.h b/source/Lib/CommonLib/Picture.h index 209f2bc82..8e12011d4 100644 --- a/source/Lib/CommonLib/Picture.h +++ b/source/Lib/CommonLib/Picture.h @@ -251,6 +251,9 @@ struct Picture : public UnitArea bool useScBDPCM; bool useScIBC; bool useScLMCS; +#if QTBTT_SPEED3 + int useQtbttSpeedUpMode; +#endif int seqBaseQp; int actualHeadBits; int actualTotalBits; diff --git a/source/Lib/CommonLib/QuantRDOQ2.cpp b/source/Lib/CommonLib/QuantRDOQ2.cpp index 63200ae16..4e01329ad 100644 --- a/source/Lib/CommonLib/QuantRDOQ2.cpp +++ b/source/Lib/CommonLib/QuantRDOQ2.cpp @@ -622,9 +622,7 @@ int QuantRDOQ2::xRateDistOptQuantFast( TransformUnit &tu, const ComponentID &com useThres = thres / ( defaultQuantScale << 2 ); } -#if ENABLE_SIMD_OPT_QUANT && defined( TARGET_SIMD_X86 ) - const bool scanFirstSimd = !bUseScalingList && iScanPos >= 16 && log2CGSize == 4 && cctx.log2CGWidth() == 2 && read_x86_extension_flags() > SCALAR; -#endif + const bool scanFirstBlk = !bUseScalingList && log2CGSize == 4 && cctx.log2CGWidth() == 2; int subSetId = iScanPos >> log2CGSize; for( ; subSetId >= 0; subSetId-- ) @@ -636,10 +634,10 @@ int QuantRDOQ2::xRateDistOptQuantFast( TransformUnit &tu, const ComponentID &com int iScanPosinCG = iScanPos & ( iCGSize - 1 ); if( iLastScanPos < 0 ) - { + { #if ENABLE_SIMD_OPT_QUANT && defined( TARGET_SIMD_X86 ) // if more than one 4x4 coding subblock is available, use SIMD to find first subblock with coefficient larger than threshold - if( scanFirstSimd ) + if( scanFirstBlk && iScanPos >= 16 && read_x86_extension_flags() > SCALAR ) { // move the pointer to the beginning of the current subblock const int firstTestPos = iScanPos - iScanPosinCG; @@ -676,7 +674,7 @@ int QuantRDOQ2::xRateDistOptQuantFast( TransformUnit &tu, const ComponentID &com } else #endif - if( !bUseScalingList && iScanPos >= 16 && log2CGSize == 4 && cctx.log2CGWidth() == 2 ) + if( scanFirstBlk && iScanPos >= 16 ) { bool allSmaller = true; diff --git a/source/Lib/CommonLib/StatCounter.h b/source/Lib/CommonLib/StatCounter.h index 88420f863..fa947862f 100644 --- a/source/Lib/CommonLib/StatCounter.h +++ b/source/Lib/CommonLib/StatCounter.h @@ -53,7 +53,7 @@ THE POSSIBILITY OF SUCH DAMAGE. #include #ifndef THROW -#define THROW(x) throw( Exception( "\nERROR: In function \"" ) << __FUNCTION__ << "\" in " << __FILE__ << ":" << __LINE__ << ": " << x ) +#define THROW(x) throw( Exception( "ERROR: In function \"" ) << __FUNCTION__ << "\" in " << __FILE__ << ":" << __LINE__ << ": " << x ) #endif #ifndef CHECK #define CHECK(c,x) if(c){ THROW(x); } diff --git a/source/Lib/CommonLib/TypeDef.h b/source/Lib/CommonLib/TypeDef.h index 9e1c6ec61..95af61eb1 100644 --- a/source/Lib/CommonLib/TypeDef.h +++ b/source/Lib/CommonLib/TypeDef.h @@ -73,6 +73,8 @@ typedef vvencSliceType SliceType; namespace vvenc { +#define QTBTT_SPEED3 1 + #define JVET_M0497_MATRIX_MULT 1 // 0: Fast method; 1: Matrix multiplication #define FIX_FOR_TEMPORARY_COMPILER_ISSUES_ENABLED 1 // Some compilers fail on particular code fragments, remove this when the compiler is fixed (or new version is used) @@ -663,10 +665,8 @@ class Exception : public std::exception }; // if a check fails with THROW or CHECK, please check if ported correctly from assert in revision 1196) -#define THROW(x) throw( Exception( "\nERROR: In function \"" ) << __FUNCTION__ << "\" in " << __FILE__ << ":" << __LINE__ << ": " << x ) +#define THROW(x) throw( Exception( "ERROR: In function \"" ) << __FUNCTION__ << "\" in " << __FILE__ << ":" << __LINE__ << ": " << x ) #define CHECK(c,x) if(c){ THROW(x); } -#define EXIT(x) throw( Exception( "\n" ) << x << "\n" ) -#define CHECK_NULLPTR(_ptr) CHECK( !( _ptr ), "Accessing an empty pointer pointer!" ) #if !NDEBUG // for non MSVC compiler, define _DEBUG if in debug mode to have same behavior between MSVC and others in debug #ifndef _DEBUG diff --git a/source/Lib/CommonLib/UnitPartitioner.cpp b/source/Lib/CommonLib/UnitPartitioner.cpp index e7802f3da..a9c88adca 100644 --- a/source/Lib/CommonLib/UnitPartitioner.cpp +++ b/source/Lib/CommonLib/UnitPartitioner.cpp @@ -164,7 +164,11 @@ void Partitioner::copyState( const Partitioner& other ) #endif } +#if QTBTT_SPEED3 +void Partitioner::setMaxMinDepth( unsigned& minDepth, unsigned& maxDepth, const CodingStructure& cs, int QtbttSpeedUp, bool MergeFlag) const +#else void Partitioner::setMaxMinDepth( unsigned& minDepth, unsigned& maxDepth, const CodingStructure& cs, bool refineMinMax ) const +#endif { unsigned stdMinDepth = 0; unsigned stdMaxDepth = cs.pcv->getMaxDepth( cs.slice->sliceType, chType ); @@ -226,8 +230,11 @@ void Partitioner::setMaxMinDepth( unsigned& minDepth, unsigned& maxDepth, const minDepth = ( minDepth >= 1 ? minDepth - 1 : 0 ); maxDepth = std::min( stdMaxDepth, maxDepth + 1 ); - +#if QTBTT_SPEED3 + if((QtbttSpeedUp >> 2) && (cs.slice->TLayer > 0) && ((cs.area.Y().width >= 8) || (cs.area.Y().height >= 8))) +#else if( refineMinMax ) +#endif { int minDepthCur = stdMaxDepth; int maxDepthCur = stdMinDepth; @@ -250,6 +257,46 @@ void Partitioner::setMaxMinDepth( unsigned& minDepth, unsigned& maxDepth, const minDepth = std::max(minDepthCur, minDepth); } } +#if QTBTT_SPEED3 + if (!cs.slice->isIntra() && (QtbttSpeedUp & 3)) + { + bool doMin_SCC = !(((QtbttSpeedUp & 3) == 2) && (cs.area.Y().width < cs.pcv->maxCUSize)); + bool LimitDepths = (QtbttSpeedUp & 2) ? (MergeFlag == 0) : (cs.area.Y().width >= cs.pcv->maxCUSize); + if (LimitDepths && cuAbove && cuLeft && (cuLeft->qtDepth == cuAbove->qtDepth)) + { + int minDepthCur = cuAbove->qtDepth; + int maxDepthCur = cuAbove->qtDepth; + minDepthCur = (minDepthCur > 0) ? (minDepthCur - 1) : 0; + maxDepthCur = (maxDepthCur < stdMaxDepth) ? (maxDepthCur + 1) : maxDepthCur; + maxDepth = std::min(maxDepthCur, maxDepth); + minDepth = std::max(minDepthCur, minDepth); + } + else if (doMin_SCC && LimitDepths && cuAbove && cuLeft) + { + int minDepthCur = cuAbove->qtDepth; + int maxDepthCur = cuAbove->qtDepth; + minDepthCur = (minDepthCur > 0) ? (minDepthCur - 1) : 0; + maxDepthCur = (maxDepthCur < stdMaxDepth) ? (maxDepthCur + 1) : maxDepthCur; + if ((cuLeft->qtDepth > maxDepthCur) && ((cuLeft->qtDepth - 1) >= maxDepthCur)) + { + minDepthCur += 1; + maxDepthCur += 1; + } + else if ((cuLeft->qtDepth < minDepthCur) && ((cuLeft->qtDepth + 1) <= minDepthCur)) + { + maxDepthCur -= 1; + minDepthCur -= 1; + } + maxDepth = std::min(maxDepthCur, maxDepth); + minDepth = std::max(minDepthCur, minDepth); + } + if ((QtbttSpeedUp & 2) && MergeFlag && (maxDepth == 4) && (cs.area.Y().width <= 16)) + { + maxDepth = 3; + minDepth = (minDepth == 3)? 2: minDepth; + } + } +#endif } void Partitioner::initCtu( const UnitArea& ctuArea, const ChannelType _chType, const Slice& slice ) diff --git a/source/Lib/CommonLib/UnitPartitioner.h b/source/Lib/CommonLib/UnitPartitioner.h index 3cc961348..45853a2cd 100644 --- a/source/Lib/CommonLib/UnitPartitioner.h +++ b/source/Lib/CommonLib/UnitPartitioner.h @@ -181,7 +181,11 @@ class Partitioner bool isConsInter () { return modeType == MODE_TYPE_INTER; } bool isConsIntra () { return modeType == MODE_TYPE_INTRA; } +#if QTBTT_SPEED3 + void setMaxMinDepth ( unsigned& minDepth, unsigned& maxDepth, const CodingStructure& cs, int QtbttSpeedUp, bool MergeFlag ) const; +#else void setMaxMinDepth ( unsigned& minDepth, unsigned& maxDepth, const CodingStructure& cs, bool refineMinMax ) const; +#endif }; ////////////////////////////////////////////////////////////////////////// diff --git a/source/Lib/CommonLib/x86/CommonDefX86.cpp b/source/Lib/CommonLib/x86/CommonDefX86.cpp index 6cb316a27..1b96be558 100644 --- a/source/Lib/CommonLib/x86/CommonDefX86.cpp +++ b/source/Lib/CommonLib/x86/CommonDefX86.cpp @@ -215,7 +215,7 @@ X86_VEXT read_x86_extension_flags(const std::string &extStrId) } else { - EXIT( "SIMD Mode not supported: " << ext_flags << "\n" ); + THROW( "SIMD Mode not supported: " << ext_flags << "\n" ); } } else diff --git a/source/Lib/CommonLib/x86/IntraPredX86.h b/source/Lib/CommonLib/x86/IntraPredX86.h index 55e2d5a91..5fba0411a 100644 --- a/source/Lib/CommonLib/x86/IntraPredX86.h +++ b/source/Lib/CommonLib/x86/IntraPredX86.h @@ -1258,7 +1258,7 @@ void IntraAnglePDPC_SIMD(Pel* pDsty,const int dstStride,Pel* refSide,const int w _mm_storel_epi64( ( __m128i * )(pDsty), xdst ); else { - EXIT("wrong blocksize"); + THROW("wrong blocksize"); } } } diff --git a/source/Lib/DecoderLib/DecLib.cpp b/source/Lib/DecoderLib/DecLib.cpp index 7d355f801..2b9b66397 100644 --- a/source/Lib/DecoderLib/DecLib.cpp +++ b/source/Lib/DecoderLib/DecLib.cpp @@ -1102,28 +1102,28 @@ void DecLib::xActivateParameterSets( const int layerId) // check that the current active PPS has not changed... if (m_parameterSetManager.getSPSChangedFlag(sps->spsId) ) { - EXIT("Error - a new SPS has been decoded while processing a picture"); + THROW("a new SPS has been decoded while processing a picture"); } if (m_parameterSetManager.getPPSChangedFlag(pps->ppsId) ) { - EXIT("Error - a new PPS has been decoded while processing a picture"); + THROW("a new PPS has been decoded while processing a picture"); } for (int i = 0; i < ALF_CTB_MAX_NUM_APS; i++) { APS* aps = m_parameterSetManager.getAPS(i, ALF_APS); if (aps && m_parameterSetManager.getAPSChangedFlag(i, ALF_APS)) { - EXIT("Error - a new APS has been decoded while processing a picture"); + THROW("a new APS has been decoded while processing a picture"); } } if (lmcsAPS && m_parameterSetManager.getAPSChangedFlag(lmcsAPS->apsId, LMCS_APS) ) { - EXIT("Error - a new LMCS APS has been decoded while processing a picture"); + THROW("a new LMCS APS has been decoded while processing a picture"); } if( scalinglistAPS && m_parameterSetManager.getAPSChangedFlag( scalinglistAPS->apsId, SCALING_LIST_APS ) ) { - EXIT( "Error - a new SCALING LIST APS has been decoded while processing a picture" ); + THROW( "a new SCALING LIST APS has been decoded while processing a picture" ); } activateAPS(&m_picHeader, pSlice, m_parameterSetManager, apss, lmcsAPS, scalinglistAPS); diff --git a/source/Lib/EncoderLib/BitAllocation.cpp b/source/Lib/EncoderLib/BitAllocation.cpp index 1cd30954b..4bcd35654 100644 --- a/source/Lib/EncoderLib/BitAllocation.cpp +++ b/source/Lib/EncoderLib/BitAllocation.cpp @@ -323,7 +323,7 @@ int BitAllocation::applyQPAdaptationChroma (const Slice* slice, const VVEncCfg* if (pic == nullptr || encCfg == nullptr || optChromaQPOffset == nullptr) return -1; - const bool isHDR = encCfg->m_HdrMode != vvencHDRMode::VVENC_HDR_OFF; + const bool isHDR = (encCfg->m_HdrMode != vvencHDRMode::VVENC_HDR_OFF) && !(encCfg->m_lumaReshapeEnable != 0 && encCfg->m_reshapeSignalType == RESHAPE_SIGNAL_PQ); const bool isHighResolution = (encCfg->m_PadSourceWidth > 2048 || encCfg->m_PadSourceHeight > 1280); const int bitDepth = slice->sps->bitDepths[CH_L]; @@ -388,9 +388,9 @@ int BitAllocation::applyQPAdaptationLuma (const Slice* slice, const VVEncCfg* en if (pic == nullptr || pic->cs == nullptr || encCfg == nullptr || ctuStartAddr >= ctuBoundingAddr) return -1; - const bool isHDR = encCfg->m_HdrMode != vvencHDRMode::VVENC_HDR_OFF; + const bool isHDR = (encCfg->m_HdrMode != vvencHDRMode::VVENC_HDR_OFF) && !(encCfg->m_lumaReshapeEnable != 0 && encCfg->m_reshapeSignalType == RESHAPE_SIGNAL_PQ); const bool isHighResolution = (encCfg->m_PadSourceWidth > 2048 || encCfg->m_PadSourceHeight > 1280); - const bool useFrameWiseQPA = (encCfg->m_QP > MAX_QP_PERCEPT_QPA); + const bool useFrameWiseQPA = (encCfg->m_QP > MAX_QP_PERCEPT_QPA) && (encCfg->m_framesToBeEncoded != 1); const int bitDepth = slice->sps->bitDepths[CH_L]; const int sliceQP = (savedQP < 0 ? slice->sliceQp : savedQP); const PreCalcValues& pcv = *pic->cs->pcv; @@ -472,7 +472,7 @@ int BitAllocation::applyQPAdaptationLuma (const Slice* slice, const VVEncCfg* en else /*even addr*/ ctuRCQPMemory->push_back (Clip3 (-8, 7, ctuPumpRedQP[ctuRsAddr]) + 8); if (adaptedLumaQP > 0) { - adaptedLumaQP--; // this is a first-pass tuning to stabilize rate control + adaptedLumaQP -= (sliceQP >> 4); // a first-pass tuning for stabilization } } if (ctuPumpRedQP[ctuRsAddr] < 0) adaptedLumaQP = Clip3 (0, MAX_QP, adaptedLumaQP + (ctuPumpRedQP[ctuRsAddr] * encCfg->m_GOPSize - (dvsr >> 1)) / dvsr); @@ -499,7 +499,7 @@ int BitAllocation::applyQPAdaptationLuma (const Slice* slice, const VVEncCfg* en adaptedLumaQP = Clip3 (0, MAX_QP, adaptedLumaQP + lumaDQPOffset (meanLuma, bitDepth)); } // reduce delta-QP variance, avoid wasting precious bit budget at low bit-rates - if ((3 + encCfg->m_QP > MAX_QP_PERCEPT_QPA) && (savedQP >= 0)) + if ((3 + encCfg->m_QP > MAX_QP_PERCEPT_QPA) && (savedQP >= 0) && (encCfg->m_framesToBeEncoded != 1)) { adaptedLumaQP = ((1 + MAX_QP_PERCEPT_QPA - encCfg->m_QP) * adaptedLumaQP + (3 + encCfg->m_QP - MAX_QP_PERCEPT_QPA) * sliceQP + 1) >> 2; } @@ -567,7 +567,7 @@ int BitAllocation::applyQPAdaptationSubCtu (const Slice* slice, const VVEncCfg* if (pic == nullptr || encCfg == nullptr) return -1; - const bool isHDR = encCfg->m_HdrMode != vvencHDRMode::VVENC_HDR_OFF; + const bool isHDR = (encCfg->m_HdrMode != vvencHDRMode::VVENC_HDR_OFF) && !(encCfg->m_lumaReshapeEnable != 0 && encCfg->m_reshapeSignalType == RESHAPE_SIGNAL_PQ); const bool isHighResolution = (encCfg->m_PadSourceWidth > 2048 || encCfg->m_PadSourceHeight > 1280); const int bitDepth = slice->sps->bitDepths[CH_L]; const PosType guardSize = (isHighResolution ? 2 : 1); diff --git a/source/Lib/EncoderLib/EncAdaptiveLoopFilter.cpp b/source/Lib/EncoderLib/EncAdaptiveLoopFilter.cpp index 2a7ba3ec2..663540986 100644 --- a/source/Lib/EncoderLib/EncAdaptiveLoopFilter.cpp +++ b/source/Lib/EncoderLib/EncAdaptiveLoopFilter.cpp @@ -381,8 +381,8 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A mE11 = _mm_mul_pd( mcoef11, mE11 ); msum0 = _mm_add_pd( _mm_add_pd( mE1, mE3 ), _mm_add_pd( _mm_add_pd( mE5, mE7 ), _mm_add_pd( mE9, mE11 ) ) ); - - + + mcoef1 = _mm_blend_pd( mcoef1, mzero, 1 ); mE1 = _mm_loadu_pd( &E[0][0][1][ 1] ); @@ -400,15 +400,15 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A mE11 = _mm_mul_pd( mcoef11, mE11 ); msum1 = _mm_add_pd( _mm_add_pd( mE1, mE3 ), _mm_add_pd( _mm_add_pd( mE5, mE7 ), _mm_add_pd( mE9, mE11 ) ) ); - - msum0 = _mm_hadd_pd( msum0, msum1 ); + msum0 = _mm_hadd_pd( msum0, msum1 ); + __m128d mcoef = _mm_cvtepi32_pd( _mm_loadl_epi64( ( const __m128i* ) &coeff[0] ) ); __m128d my = _mm_loadu_pd( &y[0][0] ); __m128d mE = _mm_setr_pd( E[0][0][0][0], E[0][0][1][1] ); - + mE1 = _mm_mul_pd( mE, mcoef ); mE3 = _mm_mul_pd( msum0, mtwo ); mE1 = _mm_add_pd( mE1, mE3 ); @@ -441,7 +441,7 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A msum0 = _mm_add_pd( mE3, _mm_add_pd( _mm_add_pd( mE5, mE7 ), _mm_add_pd( mE9, mE11 ) ) ); - + mcoef3 = _mm_blend_pd( mcoef3, mzero, 1 ); //mE1 = _mm_loadu_pd( &E[0][0][3][ 1] ); @@ -461,12 +461,12 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A msum1 = _mm_add_pd( mE3, _mm_add_pd( _mm_add_pd( mE5, mE7 ), _mm_add_pd( mE9, mE11 ) ) ); msum0 = _mm_hadd_pd( msum0, msum1 ); - + mcoef = _mm_cvtepi32_pd( _mm_loadl_epi64( ( const __m128i* ) &coeff[2] ) ); my = _mm_loadu_pd( &y[0][2] ); mE = _mm_setr_pd( E[0][0][2][2], E[0][0][3][3] ); - + mE1 = _mm_mul_pd( mE, mcoef ); mE3 = _mm_mul_pd( msum0, mtwo ); mE1 = _mm_add_pd( mE1, mE3 ); @@ -498,8 +498,8 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A mE11 = _mm_mul_pd( mcoef11, mE11 ); msum0 = _mm_add_pd( _mm_add_pd( mE5, mE7 ), _mm_add_pd( mE9, mE11 ) ); - - + + mcoef5 = _mm_blend_pd( mcoef5, mzero, 1 ); //mE1 = _mm_loadu_pd( &E[0][0][5][ 1] ); @@ -524,7 +524,7 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A mcoef = _mm_cvtepi32_pd( _mm_loadl_epi64( ( const __m128i* ) &coeff[4] ) ); my = _mm_loadu_pd( &y[0][4] ); mE = _mm_setr_pd( E[0][0][4][4], E[0][0][5][5] ); - + mE1 = _mm_mul_pd( mE, mcoef ); mE3 = _mm_mul_pd( msum0, mtwo ); mE1 = _mm_add_pd( mE1, mE3 ); @@ -557,7 +557,7 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A msum0 = _mm_add_pd( mE7, _mm_add_pd( mE9, mE11 ) ); - + mcoef7 = _mm_blend_pd( mcoef7, mzero, 1 ); //mE1 = _mm_loadu_pd( &E[0][0][7][ 1] ); @@ -582,7 +582,7 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A mcoef = _mm_cvtepi32_pd( _mm_loadl_epi64( ( const __m128i* ) &coeff[6] ) ); my = _mm_loadu_pd( &y[0][6] ); mE = _mm_setr_pd( E[0][0][6][6], E[0][0][7][7] ); - + mE1 = _mm_mul_pd( mE, mcoef ); mE3 = _mm_mul_pd( msum0, mtwo ); mE1 = _mm_add_pd( mE1, mE3 ); @@ -640,7 +640,7 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A mcoef = _mm_cvtepi32_pd( _mm_loadl_epi64( ( const __m128i* ) &coeff[8] ) ); my = _mm_loadu_pd( &y[0][8] ); mE = _mm_setr_pd( E[0][0][8][8], E[0][0][9][9] ); - + mE1 = _mm_mul_pd( mE, mcoef ); mE3 = _mm_mul_pd( msum0, mtwo ); mE1 = _mm_add_pd( mE1, mE3 ); @@ -698,7 +698,7 @@ static double calcErrorForCoeffsLin_13_SSE( const AlfCovariance::TKE& E, const A mcoef = _mm_cvtepi32_pd( _mm_loadl_epi64( ( const __m128i* ) &coeff[10] ) ); my = _mm_loadu_pd( &y[0][10] ); mE = _mm_setr_pd( E[0][0][10][10], E[0][0][11][11] ); - + mE1 = _mm_mul_pd( mE, mcoef ); mE3 = _mm_mul_pd( msum0, mtwo ); mE1 = _mm_add_pd( mE1, mE3 ); @@ -1542,70 +1542,19 @@ void EncAdaptiveLoopFilter::getStatisticsCTU( Picture& pic, CodingStructure& cs, } } -void EncAdaptiveLoopFilter::performCCALF( Picture& pic, CodingStructure& cs ) +void EncAdaptiveLoopFilter::copyCTUForCCALF( CodingStructure& cs, int ctuPosX, int ctuPosY ) { - initCABACEstimator( cs.slice, &pic.picApsMap ); - const TempCtx ctxStartCcAlf(m_CtxCache, SubCtx(Ctx::CcAlfFilterControlFlag, m_CABACEstimator->getCtx())); - - // Do not transmit CC ALF if it is unchanged - if (cs.slice->tileGroupAlfEnabled[COMP_Y]) - { - for (int32_t lumaAlfApsId : cs.slice->tileGroupLumaApsId) - { - APS* aps = (lumaAlfApsId >= 0) ? m_apsMap->getPS((lumaAlfApsId << NUM_APS_TYPE_LEN) + ALF_APS) : nullptr; - if (aps && m_apsMap->getChangedFlag((lumaAlfApsId << NUM_APS_TYPE_LEN) + ALF_APS)) - { - aps->ccAlfParam.newCcAlfFilter[0] = false; - aps->ccAlfParam.newCcAlfFilter[1] = false; - } - } - } - int chromaAlfApsId = ( cs.slice->tileGroupAlfEnabled[COMP_Cb] || cs.slice->tileGroupAlfEnabled[COMP_Cr]) ? cs.slice->tileGroupChromaApsId : -1; - APS* aps = (chromaAlfApsId >= 0) ? m_apsMap->getPS((chromaAlfApsId << NUM_APS_TYPE_LEN) + ALF_APS) : nullptr; - if (aps && m_apsMap->getChangedFlag((chromaAlfApsId << NUM_APS_TYPE_LEN) + ALF_APS)) - { - aps->ccAlfParam.newCcAlfFilter[0] = false; - aps->ccAlfParam.newCcAlfFilter[1] = false; - } - - if (!cs.slice->sps->ccalfEnabled ) - { - return; - } - - m_tempBuf.get(COMP_Cb).copyFrom(cs.getRecoBuf().get(COMP_Cb)); - m_tempBuf.get(COMP_Cr).copyFrom(cs.getRecoBuf().get(COMP_Cr)); - - PelUnitBuf orgYuv = cs.picture->getOrigBuf(); - PelUnitBuf recYuv = m_tempBuf.getBuf(cs.area); - recYuv.extendBorderPel(MAX_ALF_FILTER_LENGTH >> 1); - - deriveStatsForCcAlfFiltering(orgYuv, recYuv, COMP_Cb, m_numCTUsInWidth, (0 + 1), cs); - deriveStatsForCcAlfFiltering(orgYuv, recYuv, COMP_Cr, m_numCTUsInWidth, (0 + 1), cs); - initDistortionCcalf(); - - m_CABACEstimator->getCtx() = SubCtx(Ctx::CcAlfFilterControlFlag, ctxStartCcAlf); - deriveCcAlfFilter(cs, COMP_Cb, orgYuv, recYuv, cs.getRecoBuf()); - m_CABACEstimator->getCtx() = SubCtx(Ctx::CcAlfFilterControlFlag, ctxStartCcAlf); - deriveCcAlfFilter(cs, COMP_Cr, orgYuv, recYuv, cs.getRecoBuf()); - - xSetupCcAlfAPS(cs); - - for (int compIdx = 1; compIdx < getNumberValidComponents(cs.pcv->chrFormat); compIdx++) - { - ComponentID compID = ComponentID(compIdx); - if (m_ccAlfFilterParam.ccAlfFilterEnabled[compIdx - 1]) - { - applyCcAlfFilter(cs, compID, cs.getRecoBuf().get(compID), recYuv, m_ccAlfFilterControl[compIdx - 1], - m_ccAlfFilterParam.ccAlfCoeff[compIdx - 1], -1); - } - } + UnitArea ctuArea = UnitArea( m_chromaFormat, cs.pcv->getCtuArea( ctuPosX, ctuPosY ) ); + PelUnitBuf ctuBufSrc = cs.getRecoBuf( ctuArea ); + PelUnitBuf ctuBufDst = m_tempBuf.getBuf( ctuArea ); + ctuBufDst.get( COMP_Cb ).copyFrom( ctuBufSrc.get( COMP_Cb ) ); + ctuBufDst.get( COMP_Cr ).copyFrom( ctuBufSrc.get( COMP_Cr ) ); } void EncAdaptiveLoopFilter::getStatisticsFrame( Picture& pic, CodingStructure& cs ) { PelUnitBuf recoBuf = cs.picture->getRecoBuf(); - resetFrameStats(); + resetFrameStats( cs.slice->sps->ccalfEnabled ); for( int ctuRsAddr = 0; ctuRsAddr < m_numCTUsInPic; ctuRsAddr++ ) { getStatisticsCTU( pic, cs, recoBuf, ctuRsAddr ); @@ -1983,7 +1932,7 @@ void EncAdaptiveLoopFilter::alfReconstructor( CodingStructure& cs ) } } -void EncAdaptiveLoopFilter::resetFrameStats() +void EncAdaptiveLoopFilter::resetFrameStats( bool ccAlfEnabled ) { // init Frame stats buffers const int numberOfChannels = getNumberValidChannels( m_chromaFormat ); @@ -2004,6 +1953,19 @@ void EncAdaptiveLoopFilter::resetFrameStats() } } } + + if( ccAlfEnabled ) + { + const int filterIdx = 0; + const int numberOfComponents = getNumberValidComponents( m_chromaFormat ); + for( int compIdx = 1; compIdx < numberOfComponents; compIdx++ ) + { + for( int shape = 0; shape != m_filterShapesCcAlf[compIdx - 1].size(); shape++ ) + { + m_alfCovarianceFrameCcAlf[compIdx - 1][shape][filterIdx].reset(); + } + } + } } double EncAdaptiveLoopFilter::deriveCtbAlfEnableFlags( CodingStructure& cs, const int iShapeIdx, ChannelType channel, const double chromaWeight, @@ -3039,41 +3001,146 @@ void EncAdaptiveLoopFilter::getPreBlkStats(AlfCovariance* alfCovariance, const A { weight[ii][jj] = m_lumaLevelToWeightPLUT[org[j + jj + ii * orgStride]]; } - - for( int k = 0; k < shape.numCoeff; k++ ) + +#if defined( TARGET_SIMD_X86 ) && ENABLE_SIMD_OPT_ALF + if( read_x86_extension_flags() > SCALAR ) { - const Pel* Elocalk = &ELocal[k << 4]; - double* cov = &alfCovariance[classIdx].E[0][0][k][k]; + for( int k = 0; k < shape.numCoeff; k++ ) + { + const Pel* Elocalk = &ELocal[k << 4]; + double* cov = &alfCovariance[classIdx].E[0][0][k][k]; - for( int l = k; l < shape.numCoeff; l++ ) + for( int l = k; l < shape.numCoeff; l++ ) + { + const Pel* Elocall = &ELocal[l << 4]; + + //double sum = 0.0; + __m128d xacc = _mm_setzero_pd(); + + for( int ii = 0; ii < 4; ii++ ) + { + const __m128i xloclx32 = _mm_cvtepi16_epi32( _mm_loadl_epi64( ( const __m128i* ) &Elocall[(ii << 2)] ) ); + const __m128i xlockx32 = _mm_cvtepi16_epi32( _mm_loadl_epi64( ( const __m128i* ) &Elocalk[(ii << 2)] ) ); + + __m128d xlocld = _mm_cvtepi32_pd( xloclx32 ); + __m128d xlockd = _mm_cvtepi32_pd( xlockx32 ); + __m128d xwght = _mm_loadu_pd ( &weight[ii][0] ); + __m128d xprdct = _mm_mul_pd ( xwght, _mm_mul_pd ( xlocld, xlockd ) ); + + xacc = _mm_add_pd( xacc, xprdct ); + + xlocld = _mm_cvtepi32_pd( _mm_unpackhi_epi64( xloclx32, xloclx32 ) ); + xlockd = _mm_cvtepi32_pd( _mm_unpackhi_epi64( xlockx32, xlockx32 ) ); + xwght = _mm_loadu_pd ( &weight[ii][2] ); + xprdct = _mm_mul_pd ( xwght, _mm_mul_pd ( xlocld, xlockd ) ); + + xacc = _mm_add_pd( xacc, xprdct ); + + //for( int jj = 0; jj < 4; jj++ ) sum += weight[ii][jj] * Elocall[(ii << 2) + jj] * Elocalk[(ii << 2) + jj]; + } + + xacc = _mm_hadd_pd( xacc, xacc ); + + *cov++ += _mm_cvtsd_f64( xacc ); + //*cov++ += sum; + } + + //double sum = 0.0; + __m128d xacc = _mm_setzero_pd(); + + for( int ii = 0; ii < 4; ii++ ) + { + const __m128i xlockx32 = _mm_cvtepi16_epi32( _mm_loadl_epi64( ( const __m128i* ) &Elocalk[(ii << 2)] ) ); + const __m128i yloc32 = _mm_cvtepi16_epi32( _mm_loadl_epi64( ( const __m128i* ) &yLocal [ii][0] ) ); + + __m128d ylocd = _mm_cvtepi32_pd( yloc32 ); + __m128d xlockd = _mm_cvtepi32_pd( xlockx32 ); + __m128d xwght = _mm_loadu_pd ( &weight[ii][0] ); + __m128d xprdct = _mm_mul_pd ( xwght, _mm_mul_pd( ylocd, xlockd ) ); + + xacc = _mm_add_pd ( xacc, xprdct ); + + ylocd = _mm_cvtepi32_pd ( _mm_unpackhi_epi64( yloc32, yloc32 ) ); + xlockd = _mm_cvtepi32_pd ( _mm_unpackhi_epi64( xlockx32, xlockx32 ) ); + xwght = _mm_loadu_pd ( &weight[ii][2] ); + xprdct = _mm_mul_pd ( xwght, _mm_mul_pd( ylocd, xlockd ) ); + + xacc = _mm_add_pd ( xacc, xprdct ); + + //for( int jj = 0; jj < 4; jj++ ) sum += weight[ii][jj] * Elocalk[(ii << 2) + jj] * yLocal[ii][jj]; + } + + xacc = _mm_hadd_pd( xacc, xacc ); + + alfCovariance[classIdx].y[0][k] += _mm_cvtsd_f64( xacc ); + //alfCovariance[classIdx].y[0][k] += sum; + } + + //double sum = 0.0; + __m128d xacc = _mm_setzero_pd(); + + for( int ii = 0; ii < 4; ii++ ) { - const Pel* Elocall = &ELocal[l << 4]; + const __m128i yloc32 = _mm_cvtepi16_epi32( _mm_loadl_epi64( ( const __m128i* ) &yLocal[ii][0] ) ); + + __m128d ylocd = _mm_cvtepi32_pd( yloc32 ); + __m128d xwght = _mm_loadu_pd ( &weight[ii][0] ); + __m128d xprdct = _mm_mul_pd ( xwght, _mm_mul_pd( ylocd, ylocd ) ); + + xacc = _mm_add_pd ( xacc, xprdct ); + + ylocd = _mm_cvtepi32_pd ( _mm_unpackhi_epi64( yloc32, yloc32 ) ); + xwght = _mm_loadu_pd ( &weight[ii][2] ); + xprdct = _mm_mul_pd ( xwght, _mm_mul_pd( ylocd, ylocd ) ); + + xacc = _mm_add_pd ( xacc, xprdct ); + + //for( int jj = 0; jj < 4; jj++ ) sum += weight[ii][jj] * yLocal[ii][jj] * yLocal[ii][jj]; + } + + xacc = _mm_hadd_pd( xacc, xacc ); + + alfCovariance[classIdx].pixAcc += _mm_cvtsd_f64( xacc ); + //alfCovariance[classIdx].pixAcc += sum; + } + else +#endif + { + for( int k = 0; k < shape.numCoeff; k++ ) + { + const Pel* Elocalk = &ELocal[k << 4]; + double* cov = &alfCovariance[classIdx].E[0][0][k][k]; + + for( int l = k; l < shape.numCoeff; l++ ) + { + const Pel* Elocall = &ELocal[l << 4]; + + double sum = 0.0; + for( int ii = 0; ii < 4; ii++ ) for( int jj = 0; jj < 4; jj++ ) + { + sum += weight[ii][jj] * Elocall[(ii << 2) + jj] * Elocalk[(ii << 2) + jj]; + } + + *cov++ += sum; + } double sum = 0.0; for( int ii = 0; ii < 4; ii++ ) for( int jj = 0; jj < 4; jj++ ) { - sum += weight[ii][jj] * Elocall[(ii << 2) + jj] * Elocalk[(ii << 2) + jj]; + sum += weight[ii][jj] * Elocalk[(ii << 2) + jj] * yLocal[ii][jj]; } - *cov++ += sum; + alfCovariance[classIdx].y[0][k] += sum; } double sum = 0.0; for( int ii = 0; ii < 4; ii++ ) for( int jj = 0; jj < 4; jj++ ) { - sum += weight[ii][jj] * Elocalk[(ii << 2) + jj] * yLocal[ii][jj]; + sum += weight[ii][jj] * yLocal[ii][jj] * yLocal[ii][jj]; } - alfCovariance[classIdx].y[0][k] += sum; - } - - double sum = 0.0; - for( int ii = 0; ii < 4; ii++ ) for( int jj = 0; jj < 4; jj++ ) - { - sum += weight[ii][jj] * yLocal[ii][jj] * yLocal[ii][jj]; + alfCovariance[classIdx].pixAcc += sum; } - - alfCovariance[classIdx].pixAcc += sum; } else { @@ -3211,7 +3278,7 @@ void EncAdaptiveLoopFilter::getPreBlkStats(AlfCovariance* alfCovariance, const A } else { - for( int i = 0; i < area.height; i += 4 ) + for( int i = 0; i < area.height; i++ ) { const int maxFilterSamples = 4; @@ -4879,6 +4946,64 @@ void EncAdaptiveLoopFilter::getFrameStatsCcalf(ComponentID compIdx, int filterId } } +void EncAdaptiveLoopFilter::deriveCcAlfFilter( Picture& pic, CodingStructure& cs ) +{ + initCABACEstimator( cs.slice, &pic.picApsMap ); + initDistortionCcalf(); + + // Do not transmit CC ALF if it is unchanged + if( cs.slice->tileGroupAlfEnabled[COMP_Y] ) + { + for( int32_t lumaAlfApsId : cs.slice->tileGroupLumaApsId ) + { + APS* aps = ( lumaAlfApsId >= 0 ) ? m_apsMap->getPS( ( lumaAlfApsId << NUM_APS_TYPE_LEN ) + ALF_APS ) : nullptr; + if( aps && m_apsMap->getChangedFlag( ( lumaAlfApsId << NUM_APS_TYPE_LEN ) + ALF_APS ) ) + { + aps->ccAlfParam.newCcAlfFilter[0] = false; + aps->ccAlfParam.newCcAlfFilter[1] = false; + } + } + } + int chromaAlfApsId = ( cs.slice->tileGroupAlfEnabled[COMP_Cb] || cs.slice->tileGroupAlfEnabled[COMP_Cr] ) ? cs.slice->tileGroupChromaApsId : -1; + APS* aps = ( chromaAlfApsId >= 0 ) ? m_apsMap->getPS( ( chromaAlfApsId << NUM_APS_TYPE_LEN ) + ALF_APS ) : nullptr; + if( aps && m_apsMap->getChangedFlag( ( chromaAlfApsId << NUM_APS_TYPE_LEN ) + ALF_APS ) ) + { + aps->ccAlfParam.newCcAlfFilter[0] = false; + aps->ccAlfParam.newCcAlfFilter[1] = false; + } + + // Accumulate ALF statistic + const int filterIdx = 0; + const int numberOfComponents = getNumberValidComponents( m_chromaFormat ); + for( int compIdx = 1; compIdx < numberOfComponents; compIdx++ ) + { + const ComponentID compID = ComponentID( compIdx ); + for( int shape = 0; shape != m_filterShapesCcAlf[compIdx - 1].size(); shape++ ) + { + for( int ctuRsAddr = 0; ctuRsAddr < m_numCTUsInPic; ctuRsAddr++ ) + { + for( int classIdx = 0; classIdx < ( isLuma( compID ) ? MAX_NUM_ALF_CLASSES : 1 ); classIdx++ ) + { + m_alfCovarianceFrameCcAlf[compIdx - 1][shape][filterIdx] += m_alfCovarianceCcAlf[compIdx - 1][shape][filterIdx][ctuRsAddr]; + } + } + } + } + + const TempCtx ctxStartCcAlf( m_CtxCache, SubCtx( Ctx::CcAlfFilterControlFlag, m_CABACEstimator->getCtx() ) ); + const PelUnitBuf orgYuv = cs.picture->getOrigBuf(); + const PelUnitBuf tmpYuv = m_tempBuf.getBuf( cs.area ); + const PelUnitBuf recYuv = cs.getRecoBuf(); + + m_CABACEstimator->getCtx() = SubCtx( Ctx::CcAlfFilterControlFlag, ctxStartCcAlf ); + deriveCcAlfFilter( cs, COMP_Cb, orgYuv, tmpYuv, recYuv ); + + m_CABACEstimator->getCtx() = SubCtx( Ctx::CcAlfFilterControlFlag, ctxStartCcAlf ); + deriveCcAlfFilter( cs, COMP_Cr, orgYuv, tmpYuv, recYuv ); + + xSetupCcAlfAPS( cs ); +} + void EncAdaptiveLoopFilter::deriveCcAlfFilter( CodingStructure& cs, ComponentID compID, const PelUnitBuf& orgYuv, const PelUnitBuf& tempDecYuvBuf, const PelUnitBuf& dstYuv ) { if (!cs.slice->tileGroupAlfEnabled[COMP_Y]) @@ -5182,117 +5307,97 @@ void EncAdaptiveLoopFilter::deriveCcAlfFilter( CodingStructure& cs, ComponentID } } -void EncAdaptiveLoopFilter::deriveStatsForCcAlfFiltering(const PelUnitBuf &orgYuv, const PelUnitBuf &recYuv, - const int compIdx, const int maskStride, - const uint8_t filterIdc, CodingStructure &cs) +void EncAdaptiveLoopFilter::deriveStatsForCcAlfFilteringCTU( CodingStructure& cs, const int compIdx, int ctuRsAddr ) { - const int filterIdx = filterIdc - 1; + const int filterIdx = 0; // init CTU stats buffers - for( int shape = 0; shape != m_filterShapesCcAlf[compIdx-1].size(); shape++ ) - { - for (int ctuIdx = 0; ctuIdx < m_numCTUsInPic; ctuIdx++) - { - m_alfCovarianceCcAlf[compIdx - 1][shape][filterIdx][ctuIdx].reset(); - } - } - - // init Frame stats buffers - for (int shape = 0; shape != m_filterShapesCcAlf[compIdx - 1].size(); shape++) + for( int shape = 0; shape != m_filterShapesCcAlf[compIdx - 1].size(); shape++ ) { - m_alfCovarianceFrameCcAlf[compIdx - 1][shape][filterIdx].reset(); + m_alfCovarianceCcAlf[compIdx - 1][shape][filterIdx][ctuRsAddr].reset(); } - int ctuRsAddr = 0; - const PreCalcValues &pcv = *cs.pcv; + const PreCalcValues& pcv = *cs.pcv; bool clipTop = false, clipBottom = false, clipLeft = false, clipRight = false; int numHorVirBndry = 0, numVerVirBndry = 0; int horVirBndryPos[] = { 0, 0, 0 }; int verVirBndryPos[] = { 0, 0, 0 }; - for (int yPos = 0; yPos < m_picHeight; yPos += m_maxCUHeight) + const int xPos = ( ctuRsAddr % pcv.widthInCtus ) << pcv.maxCUSizeLog2; + const int yPos = ( ctuRsAddr / pcv.widthInCtus ) << pcv.maxCUSizeLog2; + const int width = ( xPos + m_maxCUWidth > m_picWidth ) ? ( m_picWidth - xPos ) : m_maxCUWidth; + const int height = ( yPos + m_maxCUHeight > m_picHeight ) ? ( m_picHeight - yPos ) : m_maxCUHeight; + int rasterSliceAlfPad = 0; + + const PelUnitBuf orgYuv = cs.picture->getOrigBuf(); + const PelUnitBuf recYuv = PelUnitBuf( m_chromaFormat, m_tempBuf.getBuf( COMP_Y ), cs.getRecoBuf( COMP_Cb ), cs.getRecoBuf( COMP_Cr ) ); + + if( isCrossedByVirtualBoundaries( cs, xPos, yPos, width, height, clipTop, clipBottom, clipLeft, clipRight, + numHorVirBndry, numVerVirBndry, horVirBndryPos, verVirBndryPos, + rasterSliceAlfPad ) ) { - for (int xPos = 0; xPos < m_picWidth; xPos += m_maxCUWidth) + int yStart = yPos; + for( int i = 0; i <= numHorVirBndry; i++ ) { -// if (m_trainingCovControl[ctuRsAddr] == filterIdc) + const int yEnd = i == numHorVirBndry ? yPos + height : horVirBndryPos[i]; + const int h = yEnd - yStart; + const bool clipT = ( i == 0 && clipTop ) || ( i > 0 ) || ( yStart == 0 ); + const bool clipB = ( i == numHorVirBndry && clipBottom ) || ( i < numHorVirBndry ) || ( yEnd == pcv.lumaHeight ); + int xStart = xPos; + for( int j = 0; j <= numVerVirBndry; j++ ) { - const int width = (xPos + m_maxCUWidth > m_picWidth) ? (m_picWidth - xPos) : m_maxCUWidth; - const int height = (yPos + m_maxCUHeight > m_picHeight) ? (m_picHeight - yPos) : m_maxCUHeight; - int rasterSliceAlfPad = 0; - if (isCrossedByVirtualBoundaries(cs, xPos, yPos, width, height, clipTop, clipBottom, clipLeft, clipRight, - numHorVirBndry, numVerVirBndry, horVirBndryPos, verVirBndryPos, - rasterSliceAlfPad)) + const int xEnd = j == numVerVirBndry ? xPos + width : verVirBndryPos[j]; + const int w = xEnd - xStart; + const bool clipL = ( j == 0 && clipLeft ) || ( j > 0 ) || ( xStart == 0 ); + const bool clipR = ( j == numVerVirBndry && clipRight ) || ( j < numVerVirBndry ) || ( xEnd == pcv.lumaWidth ); + const int wBuf = w + ( clipL ? 0 : MAX_ALF_PADDING_SIZE ) + ( clipR ? 0 : MAX_ALF_PADDING_SIZE ); + const int hBuf = h + ( clipT ? 0 : MAX_ALF_PADDING_SIZE ) + ( clipB ? 0 : MAX_ALF_PADDING_SIZE ); + PelUnitBuf recBuf = m_tempBuf2.subBuf( UnitArea( cs.area.chromaFormat, Area( 0, 0, wBuf, hBuf ) ) ); + recBuf.copyFrom( recYuv.subBuf( + UnitArea( cs.area.chromaFormat, Area( xStart - ( clipL ? 0 : MAX_ALF_PADDING_SIZE ), + yStart - ( clipT ? 0 : MAX_ALF_PADDING_SIZE ), wBuf, hBuf ) ) ) ); + // pad top-left unavailable samples for raster slice + if( xStart == xPos && yStart == yPos && ( rasterSliceAlfPad & 1 ) ) { - int yStart = yPos; - for (int i = 0; i <= numHorVirBndry; i++) - { - const int yEnd = i == numHorVirBndry ? yPos + height : horVirBndryPos[i]; - const int h = yEnd - yStart; - const bool clipT = (i == 0 && clipTop) || (i > 0) || (yStart == 0); - const bool clipB = (i == numHorVirBndry && clipBottom) || (i < numHorVirBndry) || (yEnd == pcv.lumaHeight); - int xStart = xPos; - for (int j = 0; j <= numVerVirBndry; j++) - { - const int xEnd = j == numVerVirBndry ? xPos + width : verVirBndryPos[j]; - const int w = xEnd - xStart; - const bool clipL = (j == 0 && clipLeft) || (j > 0) || (xStart == 0); - const bool clipR = (j == numVerVirBndry && clipRight) || (j < numVerVirBndry) || (xEnd == pcv.lumaWidth); - const int wBuf = w + (clipL ? 0 : MAX_ALF_PADDING_SIZE) + (clipR ? 0 : MAX_ALF_PADDING_SIZE); - const int hBuf = h + (clipT ? 0 : MAX_ALF_PADDING_SIZE) + (clipB ? 0 : MAX_ALF_PADDING_SIZE); - PelUnitBuf recBuf = m_tempBuf2.subBuf(UnitArea(cs.area.chromaFormat, Area(0, 0, wBuf, hBuf))); - recBuf.copyFrom(recYuv.subBuf( - UnitArea(cs.area.chromaFormat, Area(xStart - (clipL ? 0 : MAX_ALF_PADDING_SIZE), - yStart - (clipT ? 0 : MAX_ALF_PADDING_SIZE), wBuf, hBuf)))); - // pad top-left unavailable samples for raster slice - if (xStart == xPos && yStart == yPos && (rasterSliceAlfPad & 1)) - { - recBuf.padBorderPel(MAX_ALF_PADDING_SIZE, 1); - } + recBuf.padBorderPel( MAX_ALF_PADDING_SIZE, 1 ); + } - // pad bottom-right unavailable samples for raster slice - if (xEnd == xPos + width && yEnd == yPos + height && (rasterSliceAlfPad & 2)) - { - recBuf.padBorderPel(MAX_ALF_PADDING_SIZE, 2); - } - recBuf.extendBorderPel(MAX_ALF_PADDING_SIZE); - recBuf = recBuf.subBuf(UnitArea( - cs.area.chromaFormat, Area(clipL ? 0 : MAX_ALF_PADDING_SIZE, clipT ? 0 : MAX_ALF_PADDING_SIZE, w, h))); + // pad bottom-right unavailable samples for raster slice + if( xEnd == xPos + width && yEnd == yPos + height && ( rasterSliceAlfPad & 2 ) ) + { + recBuf.padBorderPel( MAX_ALF_PADDING_SIZE, 2 ); + } + recBuf.extendBorderPel( MAX_ALF_PADDING_SIZE ); + recBuf = recBuf.subBuf( UnitArea( + cs.area.chromaFormat, Area( clipL ? 0 : MAX_ALF_PADDING_SIZE, clipT ? 0 : MAX_ALF_PADDING_SIZE, w, h ) ) ); - const UnitArea area(m_chromaFormat, Area(0, 0, w, h)); - const UnitArea areaDst(m_chromaFormat, Area(xStart, yStart, w, h)); + const UnitArea area( m_chromaFormat, Area( 0, 0, w, h ) ); + const UnitArea areaDst( m_chromaFormat, Area( xStart, yStart, w, h ) ); - const ComponentID compID = ComponentID(compIdx); + const ComponentID compID = ComponentID( compIdx ); - for (int shape = 0; shape != m_filterShapesCcAlf[compIdx - 1].size(); shape++) - { - getBlkStatsCcAlf(m_alfCovarianceCcAlf[compIdx - 1][0][filterIdx][ctuRsAddr], - m_filterShapesCcAlf[compIdx - 1][shape], orgYuv, recBuf, areaDst, area, compID, yPos); - m_alfCovarianceFrameCcAlf[compIdx - 1][shape][filterIdx] += - m_alfCovarianceCcAlf[compIdx - 1][shape][filterIdx][ctuRsAddr]; - } + for( int shape = 0; shape != m_filterShapesCcAlf[compIdx - 1].size(); shape++ ) + { + getBlkStatsCcAlf( m_alfCovarianceCcAlf[compIdx - 1][0][filterIdx][ctuRsAddr], + m_filterShapesCcAlf[compIdx - 1][shape], orgYuv, recBuf, areaDst, area, compID, yPos ); + } - xStart = xEnd; - } + xStart = xEnd; + } - yStart = yEnd; - } - } - else - { - const UnitArea area(m_chromaFormat, Area(xPos, yPos, width, height)); + yStart = yEnd; + } + } + else + { + const UnitArea area( m_chromaFormat, Area( xPos, yPos, width, height ) ); - const ComponentID compID = ComponentID(compIdx); + const ComponentID compID = ComponentID( compIdx ); - for (int shape = 0; shape != m_filterShapesCcAlf[compIdx - 1].size(); shape++) - { - getBlkStatsCcAlf(m_alfCovarianceCcAlf[compIdx - 1][0][filterIdx][ctuRsAddr], - m_filterShapesCcAlf[compIdx - 1][shape], orgYuv, recYuv, area, area, compID, yPos); - m_alfCovarianceFrameCcAlf[compIdx - 1][shape][filterIdx] += - m_alfCovarianceCcAlf[compIdx - 1][shape][filterIdx][ctuRsAddr]; - } - } - } - ctuRsAddr++; + for( int shape = 0; shape != m_filterShapesCcAlf[compIdx - 1].size(); shape++ ) + { + getBlkStatsCcAlf( m_alfCovarianceCcAlf[compIdx - 1][0][filterIdx][ctuRsAddr], + m_filterShapesCcAlf[compIdx - 1][shape], orgYuv, recYuv, area, area, compID, yPos ); } } } @@ -5506,7 +5611,7 @@ void EncAdaptiveLoopFilter::calcCovariance4CcAlf(Pel ELocal[MAX_NUM_CC_ALF_CHROM { recYM1 = recY0; recYP2 = recYP1 = recY0; - } +} const int dx0 = 0; const int dx1 = 1 << getChannelTypeScaleX( CH_C, m_chromaFormat ); @@ -5573,7 +5678,7 @@ void EncAdaptiveLoopFilter::calcCovarianceCcAlf(Pel ELocal[MAX_NUM_CC_ALF_CHROMA recYP2 = recYP1 = recY0; } - const Pel centerValue = recY0[+0]; + const Pel centerValue = recY0[+0]; ELocal[0] += recYM1[+0] - centerValue; ELocal[1] += recY0 [-1] - centerValue; @@ -5582,7 +5687,7 @@ void EncAdaptiveLoopFilter::calcCovarianceCcAlf(Pel ELocal[MAX_NUM_CC_ALF_CHROMA ELocal[4] += recYP1[+0] - centerValue; ELocal[5] += recYP1[+1] - centerValue; ELocal[6] += recYP2[+0] - centerValue; -} + } void EncAdaptiveLoopFilter::countLumaSwingGreaterThanThreshold(const Pel* luma, int lumaStride, int height, int width, int log2BlockWidth, int log2BlockHeight, uint64_t* lumaSwingGreaterThanThresholdCount, int lumaCountStride) { diff --git a/source/Lib/EncoderLib/EncAdaptiveLoopFilter.h b/source/Lib/EncoderLib/EncAdaptiveLoopFilter.h index dec71ccb3..8176b00f0 100644 --- a/source/Lib/EncoderLib/EncAdaptiveLoopFilter.h +++ b/source/Lib/EncoderLib/EncAdaptiveLoopFilter.h @@ -415,14 +415,15 @@ class EncAdaptiveLoopFilter : public AdaptiveLoopFilter int getApsIdStart () { return m_apsIdStart; } void getStatisticsCTU ( Picture& pic, CodingStructure& cs, PelUnitBuf& recYuv, const int ctuRsAddr ); - void performCCALF ( Picture& pic, CodingStructure& cs ); + void copyCTUForCCALF ( CodingStructure& cs, int ctuPosX, int ctuPosY ); + void deriveStatsForCcAlfFilteringCTU( CodingStructure& cs, const int compIdx, int ctuIdx ); + void deriveCcAlfFilter ( Picture& pic, CodingStructure& cs ); void deriveFilter ( Picture& pic, CodingStructure& cs, const double* lambdas ); void reconstructCTU_MT ( Picture& pic, CodingStructure& cs, int ctuRsAddr ); void reconstructCTU ( Picture& pic, CodingStructure& cs, const CPelUnitBuf& recBuf, int ctuRsAddr ); void alfReconstructor ( CodingStructure& cs ); void getStatisticsFrame ( Picture& pic, CodingStructure& cs ); - void resetFrameStats (); - + void resetFrameStats ( bool ccAlfEnabled ); private: void alfEncoder ( CodingStructure& cs, AlfParam& alfParam, const ChannelType channel, const double lambdaChromaWeight ); @@ -437,9 +438,7 @@ class EncAdaptiveLoopFilter : public AdaptiveLoopFilter void calcLinCovariance4 ( Pel* ELocal, const Pel* rec, const int stride, const int* filterPattern, const int halfFilterLength, const int transposeIdx, int clipTopRow, int clipBotRow ); template < bool clipToBdry > void calcLinCovariance ( int* ELocal, const Pel* rec, const int stride, const int* filterPattern, const int halfFilterLength, const int transposeIdx, int clipTopRow, int clipBotRow ); - void deriveStatsForCcAlfFiltering(const PelUnitBuf &orgYuv, const PelUnitBuf &recYuv, const int compIdx, - const int maskStride, const uint8_t filterIdc, CodingStructure &cs); - void getBlkStatsCcAlf ( AlfCovariance &alfCovariance, const AlfFilterShape &shape, const PelUnitBuf &orgYuv, + void getBlkStatsCcAlf ( AlfCovariance& alfCovariance, const AlfFilterShape& shape, const PelUnitBuf& orgYuv, const PelUnitBuf &recYuv, const UnitArea &areaDst, const UnitArea &area, const ComponentID compID, const int yPos); void calcCovarianceCcAlf ( Pel ELocal[MAX_NUM_CC_ALF_CHROMA_COEFF], const Pel* rec, const int stride, const AlfFilterShape& shape, int vbDistance); diff --git a/source/Lib/EncoderLib/EncCu.cpp b/source/Lib/EncoderLib/EncCu.cpp index ba49d460c..b753589ee 100644 --- a/source/Lib/EncoderLib/EncCu.cpp +++ b/source/Lib/EncoderLib/EncCu.cpp @@ -242,6 +242,10 @@ void EncCu::init( const VVEncCfg& encCfg, const SPS& sps, std::vector* cons m_CurrCtx = 0; if( encCfg.m_EDO ) m_dbBuffer.create( chromaFormat, Area( 0, 0, uiMaxSize, uiMaxSize ), 0, 8 ); + +#if QTBTT_SPEED3 + m_MergeSimpleFlag = 0; +#endif } @@ -534,7 +538,7 @@ void EncCu::xCompressCU( CodingStructure*& tempCS, CodingStructure*& bestCS, Par m_tempQpDiff = pic->ctuAdaptedQP[ctuRsAddr] - BitAllocation::applyQPAdaptationSubCtu (&slice, m_pcEncCfg, lumaArea ); } - if ((!slice.isIntra() || slice.sps->IBC) && // Museum fix + if ((!slice.isIntra()) && // sub-CTU behavior, Museum fix (uiLPelX + (pcv.maxCUSize >> 1) < (m_pcEncCfg->m_PadSourceWidth)) && (uiTPelY + (pcv.maxCUSize >> 1) < (m_pcEncCfg->m_PadSourceHeight))) { @@ -567,7 +571,7 @@ void EncCu::xCompressCU( CodingStructure*& tempCS, CodingStructure*& bestCS, Par } setUpLambda ( slice, pic->ctuQpaLambda[ctuRsAddr], pic->ctuAdaptedQP[ctuRsAddr], false, true ); } - else if (slice.isIntra() && !slice.sps->IBC) // sub-CTU QPA + else if (slice.isIntra()) // currSubdiv 2 - use sub-CTU QPA { CHECK ((partitioner.currArea().lwidth() >= pcv.maxCUSize) || (partitioner.currArea().lheight() >= pcv.maxCUSize), "sub-CTU delta-QP error"); tempCS->currQP[partitioner.chType] = tempCS->baseQP = BitAllocation::applyQPAdaptationSubCtu (&slice, m_pcEncCfg, lumaArea); @@ -581,7 +585,15 @@ void EncCu::xCompressCU( CodingStructure*& tempCS, CodingStructure*& bestCS, Par } } +#if QTBTT_SPEED3 + if (partitioner.currQtDepth == 0) + { + m_MergeSimpleFlag = 0; + } + m_modeCtrl.initCULevel(partitioner, *tempCS, m_MergeSimpleFlag); +#else m_modeCtrl.initCULevel( partitioner, *tempCS ); +#endif m_sbtCostSave[0] = m_sbtCostSave[1] = MAX_DOUBLE; m_CurrCtx->start = m_CABACEstimator->getCtx(); @@ -732,6 +744,22 @@ void EncCu::xCompressCU( CodingStructure*& tempCS, CodingStructure*& bestCS, Par { m_cInterSearch.loadGlobalUniMvs( lumaArea, *pps.pcv ); } + +#if QTBTT_SPEED3 + if (!cs.slice->isIntra() && (partitioner.chType == CH_L) && ( m_pcEncCfg->m_qtbttSpeedUpMode & 2) && (partitioner.currQtDepth < 3) && bestCS->cus.size()) + { + int flagDbefore = (bestCS->cus[0]->mergeFlag && !bestCS->cus[0]->mmvdMergeFlag && !bestCS->cus[0]->ispMode && !bestCS->cus[0]->geo) ? 1 : 0; + if (partitioner.currQtDepth == 0) + { + m_MergeSimpleFlag = flagDbefore; + } + else + { + int markFlag = (partitioner.currQtDepth == 1) ? 1 : 3; + m_MergeSimpleFlag = (flagDbefore << partitioner.currQtDepth) | (m_MergeSimpleFlag & markFlag); + } + } +#endif } //boundary ////////////////////////////////////////////////////////////////////////// diff --git a/source/Lib/EncoderLib/EncCu.h b/source/Lib/EncoderLib/EncCu.h index 6c22f4c30..148db8f75 100644 --- a/source/Lib/EncoderLib/EncCu.h +++ b/source/Lib/EncoderLib/EncCu.h @@ -214,6 +214,10 @@ class EncCu int m_bestBcwIdx[2]; double m_bestBcwCost[2]; +#if QTBTT_SPEED3 + int m_MergeSimpleFlag; +#endif + public: EncCu(); virtual ~EncCu(); diff --git a/source/Lib/EncoderLib/EncGOP.cpp b/source/Lib/EncoderLib/EncGOP.cpp index 66061af74..f97a1a6ab 100644 --- a/source/Lib/EncoderLib/EncGOP.cpp +++ b/source/Lib/EncoderLib/EncGOP.cpp @@ -1791,7 +1791,11 @@ void EncGOP::picInitRateControl( int gopId, Picture& pic, Slice* slice, EncPictu itNext++; } } - if (it->refreshParameters) encRCSeq->qpCorrection[frameLevel] = encRCSeq->actualBitCnt[frameLevel] = encRCSeq->targetBitCnt[frameLevel] = 0; + if (it->refreshParameters) + { + encRCSeq->qpCorrection[frameLevel] = ((it->poc == 0) && (d < it->numBits) ? std::max (-1.0 * visAct / double (1 << (encRCSeq->bitDepth - 3)), 1.0 - it->numBits / d) : 0.0); + encRCSeq->actualBitCnt[frameLevel] = encRCSeq->targetBitCnt[frameLevel] = 0; + } CHECK (slice->TLayer >= 7, "analyzed RC frame must have TLayer < 7"); // try to hit target rate more aggressively in last coded frames, lambda/QP clipping below will ensure smooth value change @@ -1948,7 +1952,7 @@ void EncGOP::xCalculateAddPSNR( const Picture* pic, CPelUnitBuf cPicD, AccessUni const uint32_t uibits = numRBSPBytes * 8; - if ((m_pcEncCfg->m_RCNumPasses == 2) && (m_pcRateCtrl->rcPass < m_pcRateCtrl->rcMaxPass)) + if ( m_pcEncCfg->m_RCNumPasses == 2 && ! m_pcRateCtrl->rcIsFinalPass ) { visualActivity = (pic->picVisActY > 0.0 ? pic->picVisActY : BitAllocation::getPicVisualActivity (slice, m_pcEncCfg)); } @@ -1993,7 +1997,7 @@ void EncGOP::xCalculateAddPSNR( const Picture* pic, CPelUnitBuf cPicD, AccessUni { std::string cInfo = print("RC pass %d/%d, analyze poc %d", m_pcRateCtrl->rcPass + 1, - m_pcRateCtrl->rcMaxPass + 1, + m_pcEncCfg->m_RCNumPasses, slice->poc ); accessUnit.InfoString.append( cInfo ); diff --git a/source/Lib/EncoderLib/EncLib.cpp b/source/Lib/EncoderLib/EncLib.cpp index 3a3bee0de..271da6b04 100644 --- a/source/Lib/EncoderLib/EncLib.cpp +++ b/source/Lib/EncoderLib/EncLib.cpp @@ -101,7 +101,7 @@ void EncLib::initEncoderLib( const VVEncCfg& encCfg ) m_cBckCfg = encCfg; // initialize first pass - initPass( 0 ); + initPass( 0, nullptr ); #if ENABLE_TRACING g_trace_ctx = tracing_init( m_cEncCfg.m_traceFile, m_cEncCfg.m_traceRule ); @@ -216,10 +216,13 @@ void EncLib::uninitEncoderLib() #endif } -void EncLib::initPass( int pass ) +void EncLib::initPass( int pass, const char* statsFName ) { CHECK( m_numPassInitialized != pass && m_numPassInitialized + 1 != pass, "initialization of passes only in successive order possible" ); + // set rate control pass + m_cRateCtrl.setRCPass( m_cEncCfg, pass, statsFName ); + if( m_numPassInitialized + 1 != pass ) { return; @@ -227,9 +230,6 @@ void EncLib::initPass( int pass ) xUninitLib(); - // set rate control pass - m_cRateCtrl.setRCPass( pass, m_cEncCfg.m_RCNumPasses - 1 ); - // modify encoder config based on rate control pass if( m_cEncCfg.m_RCNumPasses > 1 ) { @@ -285,8 +285,7 @@ void EncLib::initPass( int pass ) if ( m_cEncCfg.m_RCTargetBitrate > 0 ) { - m_cRateCtrl.init( m_cEncCfg.m_framesToBeEncoded, m_cEncCfg.m_RCTargetBitrate, (int)( (double)m_cEncCfg.m_FrameRate / m_cEncCfg.m_temporalSubsampleRatio + 0.5 ), m_cEncCfg.m_IntraPeriod, m_cEncCfg.m_GOPSize, m_cEncCfg.m_PadSourceWidth, m_cEncCfg.m_PadSourceHeight, - m_cEncCfg.m_CTUSize, m_cEncCfg.m_CTUSize, m_cEncCfg.m_internalBitDepth[ CH_L ], m_cEncCfg.m_GOPList, m_cEncCfg.m_maxParallelFrames ); + m_cRateCtrl.init( m_cEncCfg ); if ( pass == 1 ) { @@ -378,7 +377,7 @@ void EncLib::xSetRCEncCfg( int pass ) m_cBckCfg.m_QP /*base QP*/ = (m_cEncCfg.m_RCInitialQP > 0 ? Clip3 (17, MAX_QP, m_cEncCfg.m_RCInitialQP) : std::max (17, MAX_QP_PERCEPT_QPA - 2 - int (0.5 + sqrt ((d * m_cEncCfg.m_RCTargetBitrate) / 500000.0)))); // restore the settings - if (m_cBckCfg.m_usePerceptQPA && (m_cBckCfg.m_QP <= MAX_QP_PERCEPT_QPA)) + if (m_cBckCfg.m_usePerceptQPA && (m_cBckCfg.m_QP <= MAX_QP_PERCEPT_QPA || m_cBckCfg.m_framesToBeEncoded == 1)) { m_cBckCfg.m_CTUSize = cs; } @@ -386,7 +385,7 @@ void EncLib::xSetRCEncCfg( int pass ) m_cBckCfg.m_IBCMode = ibcMode; // clear MaxCuDQPSubdiv - if( m_cBckCfg.m_CTUSize < 128 ) + if (m_cBckCfg.m_CTUSize < 128 && (m_cBckCfg.m_PadSourceWidth > 1024 || m_cBckCfg.m_PadSourceHeight > 640)) { m_cBckCfg.m_cuQpDeltaSubdiv = 0; } @@ -503,8 +502,6 @@ void EncLib::encodePicture( bool flush, const vvencYUVBuffer* yuvInBuf, AccessUn // update current poc m_pocEncode = xGetNextPocICO( m_pocEncode, flush, m_numPicsRcvd, m_cEncCfg.m_DecodingRefreshType == 4 ); - - if ((m_cEncCfg.m_RCNumPasses == 2) && (m_cRateCtrl.flushPOC < 0) && flush) m_cRateCtrl.flushPOC = m_pocEncode; std::vector encList; xCreateCodingOrder( m_pocEncode, m_numPicsRcvd, m_numPicsInQueue, flush, encList, m_cEncCfg.m_DecodingRefreshType == 4 ); @@ -984,7 +981,7 @@ void EncLib::xInitSPS(SPS &sps) const { sps.bitDepths.recon[chType] = m_cEncCfg.m_internalBitDepth[chType]; sps.qpBDOffset[chType] = 6 * (m_cEncCfg.m_internalBitDepth[chType] - 8); - sps.internalMinusInputBitDepth[chType] = (m_cEncCfg.m_internalBitDepth[chType] - m_cEncCfg.m_inputBitDepth[chType]); + sps.internalMinusInputBitDepth[chType] = std::max(0, (m_cEncCfg.m_internalBitDepth[chType] - m_cEncCfg.m_inputBitDepth[chType])); } sps.alfEnabled = m_cEncCfg.m_alf; @@ -1044,7 +1041,7 @@ void EncLib::xInitPPS(PPS &pps, const SPS &sps) const { bool bUseDQP = m_cEncCfg.m_cuQpDeltaSubdiv > 0; bUseDQP |= m_cEncCfg.m_lumaLevelToDeltaQPEnabled; - bUseDQP |= m_cEncCfg.m_usePerceptQPA && (m_cEncCfg.m_QP <= MAX_QP_PERCEPT_QPA); + bUseDQP |= m_cEncCfg.m_usePerceptQPA && (m_cEncCfg.m_QP <= MAX_QP_PERCEPT_QPA || m_cEncCfg.m_framesToBeEncoded == 1); if (m_cEncCfg.m_costMode==VVENC_COST_SEQUENCE_LEVEL_LOSSLESS || m_cEncCfg.m_costMode==VVENC_COST_LOSSLESS_CODING) { @@ -1344,7 +1341,11 @@ void EncLib::xDetectScreenC(Picture& pic, PelUnitBuf yuvOrgBuf) || m_cEncCfg.m_vvencMCTF.MCTF == 2 || m_cEncCfg.m_IBCMode == 2 || m_cEncCfg.m_lumaReshapeEnable == 2 - || m_cEncCfg.m_motionEstimationSearchMethodSCC > 0 ) + || m_cEncCfg.m_motionEstimationSearchMethodSCC > 0 +#if QTBTT_SPEED3 + || m_cEncCfg.m_qtbttSpeedUpMode & 2 +#endif + ) { int SIZE_BL = 4; int K_SC = 25; @@ -1357,9 +1358,9 @@ void EncLib::xDetectScreenC(Picture& pic, PelUnitBuf yuvOrgBuf) int SizeS = SIZE_BL << 1; int sR[4] = { 0,0,0,0 }; int AmountBlock = (uiWidth >> 2) * (uiHeight >> 2); - for (hh = 0; hh < uiHeight;) + for (hh = 0; hh < uiHeight; hh += SizeS) { - for (ww = 0; ww < uiWidth;) + for (ww = 0; ww < uiWidth; ww += SizeS) { int Rx = ww > (uiWidth >> 1) ? 1 : 0; int Ry = hh > (uiHeight >> 1) ? 1 : 0; @@ -1369,9 +1370,9 @@ void EncLib::xDetectScreenC(Picture& pic, PelUnitBuf yuvOrgBuf) int j = hh; int n = 0; int Var[4]; - for (j = hh; (j < hh + SizeS) && (j < uiHeight); j++) + for (j = hh; (j < hh + SizeS) && (j < uiHeight); j += size) { - for (i = ww; (i < ww + SizeS) && (i < uiWidth); i++) + for (i = ww; (i < ww + SizeS) && (i < uiWidth); i += size) { int sum = 0; int Mit = 0; @@ -1398,9 +1399,7 @@ void EncLib::xDetectScreenC(Picture& pic, PelUnitBuf yuvOrgBuf) V = V / sizeEnd; Var[n] = V; n++; - i += size; } - j += size; } for (int i = 0; i < 2; i++) { @@ -1413,9 +1412,7 @@ void EncLib::xDetectScreenC(Picture& pic, PelUnitBuf yuvOrgBuf) sR[Ry] += 1; } } - ww += SizeS; } - hh += SizeS; } int s = 0; isSccStrg = true; @@ -1436,6 +1433,13 @@ void EncLib::xDetectScreenC(Picture& pic, PelUnitBuf yuvOrgBuf) pic.useScMCTF = m_cEncCfg.m_vvencMCTF.MCTF == 1 || ( m_cEncCfg.m_vvencMCTF.MCTF == 2 && ! isSccStrg ); pic.useScLMCS = m_cEncCfg.m_lumaReshapeEnable == 1 || ( m_cEncCfg.m_lumaReshapeEnable == 2 && ! isSccStrg ); pic.useScIBC = m_cEncCfg.m_IBCMode == 1 || ( m_cEncCfg.m_IBCMode == 2 && isSccStrg ); +#if QTBTT_SPEED3 + pic.useQtbttSpeedUpMode = m_cEncCfg.m_qtbttSpeedUpMode; + if ((m_cEncCfg.m_qtbttSpeedUpMode & 2) && isSccStrg) + { + pic.useQtbttSpeedUpMode &= ~1; + } +#endif } diff --git a/source/Lib/EncoderLib/EncLib.h b/source/Lib/EncoderLib/EncLib.h index adf4c1303..e8fd683f7 100644 --- a/source/Lib/EncoderLib/EncLib.h +++ b/source/Lib/EncoderLib/EncLib.h @@ -111,7 +111,7 @@ class EncLib virtual ~EncLib(); void initEncoderLib ( const VVEncCfg& encCfg ); - void initPass ( int pass ); + void initPass ( int pass, const char* statsFName ); void encodePicture ( bool flush, const vvencYUVBuffer* yuvInBuf, AccessUnitList& au, bool& isQueueEmpty ); void uninitEncoderLib (); void printSummary (); diff --git a/source/Lib/EncoderLib/EncModeCtrl.cpp b/source/Lib/EncoderLib/EncModeCtrl.cpp index c9967df27..b4c5ccf54 100644 --- a/source/Lib/EncoderLib/EncModeCtrl.cpp +++ b/source/Lib/EncoderLib/EncModeCtrl.cpp @@ -559,15 +559,23 @@ void EncModeCtrl::initCTUEncoding( const Slice &slice ) } } +#if QTBTT_SPEED3 +void EncModeCtrl::initCULevel( Partitioner &partitioner, const CodingStructure& cs, int MergeSimpleFlag) +#else void EncModeCtrl::initCULevel( Partitioner &partitioner, const CodingStructure& cs ) +#endif { // Min/max depth unsigned minDepth = 0; unsigned maxDepth = cs.pcv->getMaxDepth( cs.slice->sliceType, partitioner.chType ); if( m_pcEncCfg->m_useFastLCTU ) { +#if QTBTT_SPEED3 + partitioner.setMaxMinDepth(minDepth, maxDepth, cs, cs.picture->useQtbttSpeedUpMode, MergeSimpleFlag); +#else bool refineMinMax = ((m_pcEncCfg->m_qtbttSpeedUp==3) && (cs.slice->TLayer > 0) && ((cs.area.Y().width >= 8) || (cs.area.Y().height >= 8))); partitioner.setMaxMinDepth( minDepth, maxDepth, cs, refineMinMax ); +#endif } m_ComprCUCtxList.push_back( ComprCUCtx( cs, minDepth, maxDepth ) ); diff --git a/source/Lib/EncoderLib/EncModeCtrl.h b/source/Lib/EncoderLib/EncModeCtrl.h index b1c31ea0d..4cbf817c6 100644 --- a/source/Lib/EncoderLib/EncModeCtrl.h +++ b/source/Lib/EncoderLib/EncModeCtrl.h @@ -258,6 +258,9 @@ struct CodedCUInfo bool isIntra; bool isSkip; bool isMMVDSkip; +#if QTBTT_SPEED3 + int isMergeSimple; +#endif bool isIBC; uint8_t BcwIdx; int ctuRsAddr, poc; @@ -356,7 +359,11 @@ class EncModeCtrl: public CacheBlkInfoCtrl, public BestEncInfoCache void init ( const VVEncCfg& encCfg, RdCost *pRdCost ); void destroy (); void initCTUEncoding ( const Slice &slice ); +#if QTBTT_SPEED3 + void initCULevel ( Partitioner &partitioner, const CodingStructure& cs, int MergeSimpleFlag ); +#else void initCULevel ( Partitioner &partitioner, const CodingStructure& cs ); +#endif void finishCULevel ( Partitioner &partitioner ); bool tryMode ( const EncTestMode& encTestmode, const CodingStructure &cs, Partitioner& partitioner ); diff --git a/source/Lib/EncoderLib/EncPicture.cpp b/source/Lib/EncoderLib/EncPicture.cpp index fdae12e9f..ab9a56adc 100644 --- a/source/Lib/EncoderLib/EncPicture.cpp +++ b/source/Lib/EncoderLib/EncPicture.cpp @@ -65,8 +65,6 @@ namespace vvenc { #ifdef TRACE_ENABLE_ITT static __itt_string_handle* itt_handle_start = __itt_string_handle_create( "PicEnc" ); static __itt_domain* itt_domain_picEncoder = __itt_domain_create( "PictureEncoder" ); -static __itt_string_handle* itt_handle_post = __itt_string_handle_create( "ALF_post" ); -static __itt_domain* itt_domain_ALF_post = __itt_domain_create( "ALFPost" ); #endif // --------------------------------------------------------------------------------------------------------------------- @@ -143,13 +141,6 @@ void EncPicture::finalizePicture( Picture& pic ) ss << "ALF_post_" << slice->poc; __itt_string_handle* itt_handle_post = __itt_string_handle_create( ss.str().c_str() ); #endif - ITT_TASKSTART( itt_domain_ALF_post, itt_handle_post ); - - if( m_pcEncCfg->m_ccalf ) - { - m_ALF.performCCALF( pic, cs ); - } - ITT_TASKEND( itt_domain_ALF_post, itt_handle_post ); pic.picApsMap.setApsIdStart( m_ALF.getApsIdStart() ); cs.slice->ccAlfFilterParam = m_ALF.getCcAlfFilterParam(); diff --git a/source/Lib/EncoderLib/EncReshape.cpp b/source/Lib/EncoderLib/EncReshape.cpp index 1518056a4..de061419f 100644 --- a/source/Lib/EncoderLib/EncReshape.cpp +++ b/source/Lib/EncoderLib/EncReshape.cpp @@ -579,6 +579,99 @@ void EncReshape::preAnalyzerLMCS(Picture& pic, const uint32_t signalType, const const int cTid = m_reshapeCW.rspTid; bool enableRsp = m_tcase == 5 ? false : (m_tcase < 5 ? (cTid < m_tcase + 1 ? false : true) : (cTid <= 10 - m_tcase ? true : false)); m_sliceReshapeInfo.sliceReshaperEnabled = enableRsp; + + if( m_sliceReshapeInfo.sliceReshaperEnabled ) + { + m_binNum = PIC_CODE_CW_BINS; + CPelBuf picY = pic.getOrigBuf( COMP_Y ); + const int width = picY.width; + const int height = picY.height; + const int stride = picY.stride; + uint32_t binCnt[PIC_CODE_CW_BINS]; + std::fill_n( binCnt, m_binNum, 0 ); + + m_srcSeqStats = SeqInfo(); + for( uint32_t y = 0; y < height; y++ ) + { + for( uint32_t x = 0; x < width; x++ ) + { + const Pel pxlY = picY.buf[x]; + int binLen = m_reshapeLUTSize / m_binNum; + uint32_t binIdx = ( uint32_t ) (pxlY / binLen); + binCnt[binIdx]++; + } + picY.buf += stride; + } + + for( int b = 0; b < m_binNum; b++ ) + { + m_srcSeqStats.binHist[b] = ( double ) binCnt[b] / ( double ) (m_reshapeCW.rspPicSize); + } + + if( m_srcSeqStats.binHist[m_binNum - 1] > 0.0003 ) + { + m_sliceReshapeInfo.sliceReshaperEnabled = false; + } + if( m_srcSeqStats.binHist[0] > 0.03 ) + { + m_sliceReshapeInfo.sliceReshaperEnabled = false; + } + + if( m_sliceReshapeInfo.sliceReshaperEnabled ) + { + double avgY = 0.0; + double varY = 0.0; + picY = pic.getOrigBuf( COMP_Y ); + for( int y = 0; y < height; y++ ) + { + for( int x = 0; x < width; x++ ) + { + avgY += picY.buf[x]; + varY += ( double ) picY.buf[x] * ( double ) picY.buf[x]; + } + picY.buf += stride; + } + avgY = avgY / (width * height); + varY = varY / (width * height) - avgY * avgY; + + if( isChromaEnabled( pic.chromaFormat ) ) + { + CPelBuf picU = pic.getOrigBuf( COMP_Cb ); + CPelBuf picV = pic.getOrigBuf( COMP_Cr ); + const int widthC = picU.width; + const int heightC = picU.height; + const int strideC = picU.stride; + double avgU = 0.0, avgV = 0.0; + double varU = 0.0, varV = 0.0; + for( int y = 0; y < heightC; y++ ) + { + for( int x = 0; x < widthC; x++ ) + { + avgU += picU.buf[x]; + avgV += picV.buf[x]; + varU += ( int64_t ) picU.buf[x] * ( int64_t ) picU.buf[x]; + varV += ( int64_t ) picV.buf[x] * ( int64_t ) picV.buf[x]; + } + picU.buf += strideC; + picV.buf += strideC; + } + avgU = avgU / (widthC * heightC); + avgV = avgV / (widthC * heightC); + varU = varU / (widthC * heightC) - avgU * avgU; + varV = varV / (widthC * heightC) - avgV * avgV; + if( varY > 0 ) + { + m_srcSeqStats.ratioStdU = sqrt( varU ) / sqrt( varY ); + m_srcSeqStats.ratioStdV = sqrt( varV ) / sqrt( varY ); + } + } + } + + if( (m_srcSeqStats.ratioStdU + m_srcSeqStats.ratioStdV) > 1.5 && m_srcSeqStats.binHist[1] > 0.5 ) + { + m_sliceReshapeInfo.sliceReshaperEnabled = false; + } + } } } } diff --git a/source/Lib/EncoderLib/EncSlice.cpp b/source/Lib/EncoderLib/EncSlice.cpp index 6f673705a..64819a8b2 100644 --- a/source/Lib/EncoderLib/EncSlice.cpp +++ b/source/Lib/EncoderLib/EncSlice.cpp @@ -68,14 +68,17 @@ THE POSSIBILITY OF SUCH DAMAGE. namespace vvenc { #ifdef TRACE_ENABLE_ITT -static const __itt_domain* itt_domain_encode = __itt_domain_create( "Encode" ); -static const __itt_string_handle* itt_handle_ctuEncode = __itt_string_handle_create( "Encode_CTU" ); -static const __itt_string_handle* itt_handle_rspLfVer = __itt_string_handle_create( "RspLfVer_CTU" ); -static const __itt_string_handle* itt_handle_lfHor = __itt_string_handle_create( "LfHor_CTU" ); -static const __itt_string_handle* itt_handle_sao = __itt_string_handle_create( "SAO_CTU" ); -static const __itt_string_handle* itt_handle_alf_stat = __itt_string_handle_create( "ALF_CTU_STAT" ); -static const __itt_string_handle* itt_handle_alf_derive = __itt_string_handle_create( "ALF_DERIVE" ); -static const __itt_string_handle* itt_handle_alf_recon = __itt_string_handle_create( "ALF_RECONSTRUCT" ); +static const __itt_domain* itt_domain_encode = __itt_domain_create( "Encode" ); +static const __itt_string_handle* itt_handle_ctuEncode = __itt_string_handle_create( "Encode_CTU" ); +static const __itt_string_handle* itt_handle_rspLfVer = __itt_string_handle_create( "RspLfVer_CTU" ); +static const __itt_string_handle* itt_handle_lfHor = __itt_string_handle_create( "LfHor_CTU" ); +static const __itt_string_handle* itt_handle_sao = __itt_string_handle_create( "SAO_CTU" ); +static const __itt_string_handle* itt_handle_alf_stat = __itt_string_handle_create( "ALF_CTU_STAT" ); +static const __itt_string_handle* itt_handle_alf_derive = __itt_string_handle_create( "ALF_DERIVE" ); +static const __itt_string_handle* itt_handle_alf_recon = __itt_string_handle_create( "ALF_RECONSTRUCT" ); +static const __itt_string_handle* itt_handle_ccalf_stat = __itt_string_handle_create( "CCALF_CTU_STAT" ); +static const __itt_string_handle* itt_handle_ccalf_derive = __itt_string_handle_create( "CCALF_DERIVE" ); +static const __itt_string_handle* itt_handle_ccalf_recon = __itt_string_handle_create( "CCALF_RECONSTRUCT" ); #endif struct LineEncRsrc @@ -741,7 +744,7 @@ void EncSlice::xProcessCtus( Picture* pic, const unsigned startCtuTsAddr, const if( slice.sps->alfEnabled ) { - m_pALF->resetFrameStats(); + m_pALF->resetFrameStats( slice.sps->ccalfEnabled ); } std::fill( m_processStates.begin(), m_processStates.end(), CTU_ENCODE ); @@ -1018,14 +1021,10 @@ bool EncSlice::xProcessCtuTask( int threadIdx, CtuEncParam* ctuEncParam ) ITT_TASKSTART( itt_domain_encode, itt_handle_alf_stat ); // ALF pre-processing - unsigned lastPreProcCTU = ( pcv.heightInCtus * pcv.widthInCtus ) - 1; - if( ctuRsAddr <= lastPreProcCTU ) + if( slice.sps->alfEnabled ) { - if( slice.sps->alfEnabled ) - { - PelUnitBuf recoBuf = cs.picture->getRecoBuf(); - encSlice->m_pALF->getStatisticsCTU( *cs.picture, cs, recoBuf, ctuRsAddr ); - } + PelUnitBuf recoBuf = cs.picture->getRecoBuf(); + encSlice->m_pALF->getStatisticsCTU( *cs.picture, cs, recoBuf, ctuRsAddr ); } ITT_TASKEND( itt_domain_encode, itt_handle_alf_stat ); @@ -1088,25 +1087,112 @@ bool EncSlice::xProcessCtuTask( int threadIdx, CtuEncParam* ctuEncParam ) } ITT_TASKEND( itt_domain_encode, itt_handle_alf_recon ); + processStates[ctuRsAddr] = CCALF_GET_STATISTICS; + } + break; + case CCALF_GET_STATISTICS: + { + // ensure all surrounding ctu's are filtered (ALF will use pixels of adjacent CTU's) + // due to wpp condition above in ALF_RECONSTRUCT, only right, bottom and bottom-right ctu have to be checked + if( ctuPosX + 1 < pcv.widthInCtus && processStates[ctuRsAddr + 1] <= ALF_RECONSTRUCT ) + return false; + if( ctuPosY + 1 < pcv.heightInCtus && processStates[ctuRsAddr + ctuStride] <= ALF_RECONSTRUCT ) + return false; + if( ctuPosX + 1 < pcv.widthInCtus && ctuPosY + 1 < pcv.heightInCtus && processStates[ctuRsAddr + 1 + ctuStride] <= ALF_RECONSTRUCT ) + return false; + + if( checkReadyState ) + return true; + + ITT_TASKSTART( itt_domain_encode, itt_handle_ccalf_stat ); + + // ALF pre-processing + if( slice.sps->ccalfEnabled ) + { + encSlice->m_pALF->deriveStatsForCcAlfFilteringCTU( cs, COMP_Cb, ctuRsAddr ); + encSlice->m_pALF->deriveStatsForCcAlfFilteringCTU( cs, COMP_Cr, ctuRsAddr ); + encSlice->m_pALF->copyCTUForCCALF( cs, ctuPosX, ctuPosY ); + } + + ITT_TASKEND( itt_domain_encode, itt_handle_ccalf_stat ); + + // derive alf filter only once for whole picture + const unsigned deriveFilterCtu = pcv.sizeInCtus - 1; + processStates[ctuRsAddr] = ( ctuRsAddr == deriveFilterCtu ) ? CCALF_DERIVE_FILTER : CCALF_RECONSTRUCT; + } + break; + + case CCALF_DERIVE_FILTER: + { + CHECK( ctuRsAddr != pcv.sizeInCtus - 1, "invalid state, derive alf filter only once for last ctu" ); + + // ensure statistics from all previous ctu's have been collected + for( int i = 0; i < ctuRsAddr; i++ ) + if( processStates[i] <= CCALF_GET_STATISTICS ) + return false; + + if( checkReadyState ) + return true; + + ITT_TASKSTART( itt_domain_encode, itt_handle_ccalf_derive ); + + // ALF post-processing + if( slice.sps->ccalfEnabled ) + { + encSlice->m_pALF->deriveCcAlfFilter( *cs.picture, cs ); + } + + ITT_TASKEND( itt_domain_encode, itt_handle_ccalf_derive ); + + processStates[ctuRsAddr] = CCALF_RECONSTRUCT; + } + break; + + case CCALF_RECONSTRUCT: + { + const unsigned deriveFilterCtu = pcv.sizeInCtus - 1; + + // start alf reconstruct, when derive filter is done + if( processStates[deriveFilterCtu] < CCALF_RECONSTRUCT ) + return false; + + // general wpp conditions, top and top-right ctu have to be encoded + if( ctuPosY > 0 && processStates[ctuRsAddr - ctuStride] <= CCALF_RECONSTRUCT ) + return false; + if( ctuPosY > 0 && ctuPosX + 1 < pcv.widthInCtus && processStates[ctuRsAddr - ctuStride + 1] <= CCALF_RECONSTRUCT ) + return false; + + if( checkReadyState ) + return true; + + ITT_TASKSTART( itt_domain_encode, itt_handle_ccalf_recon ); + + if( slice.sps->ccalfEnabled ) + { + encSlice->m_pALF->applyCcAlfFilterCTU( cs, COMP_Cb, ctuRsAddr ); + encSlice->m_pALF->applyCcAlfFilterCTU( cs, COMP_Cr, ctuRsAddr ); + } + + ITT_TASKEND( itt_domain_encode, itt_handle_ccalf_recon ); // perform finish only once for whole picture const unsigned finishCtu = pcv.sizeInCtus - 1; if( ctuRsAddr < finishCtu ) { - processStates[ ctuRsAddr ] = PROCESS_DONE; + processStates[ctuRsAddr] = PROCESS_DONE; // processing done => terminate thread return true; } - processStates[ ctuRsAddr ] = FINISH_SLICE; + processStates[ctuRsAddr] = FINISH_SLICE; } case FINISH_SLICE: { CHECK( ctuRsAddr != pcv.sizeInCtus - 1, "invalid state, finish slice only once for last ctu" ); - // ensure ALF has been done for all previous ctu's + // ensure all coding tasks have been done for all previous ctu's for( int i = 0; i < ctuRsAddr; i++ ) - if( processStates[ i ] <= ALF_RECONSTRUCT ) + if( processStates[ i ] < FINISH_SLICE ) return false; if( checkReadyState ) diff --git a/source/Lib/EncoderLib/EncSlice.h b/source/Lib/EncoderLib/EncSlice.h index 239c0455d..fb93e9ec5 100644 --- a/source/Lib/EncoderLib/EncSlice.h +++ b/source/Lib/EncoderLib/EncSlice.h @@ -84,6 +84,9 @@ enum TaskType { ALF_GET_STATISTICS, ALF_DERIVE_FILTER, ALF_RECONSTRUCT, + CCALF_GET_STATISTICS, + CCALF_DERIVE_FILTER, + CCALF_RECONSTRUCT, FINISH_SLICE, PROCESS_DONE }; diff --git a/source/Lib/EncoderLib/IntraSearch.cpp b/source/Lib/EncoderLib/IntraSearch.cpp index 5cb50c7a4..87f442649 100644 --- a/source/Lib/EncoderLib/IntraSearch.cpp +++ b/source/Lib/EncoderLib/IntraSearch.cpp @@ -735,6 +735,7 @@ void IntraSearch::estIntraPredChromaQT( CodingUnit& cu, Partitioner& partitioner uint32_t uiMinMode = 0; uint32_t uiMaxMode = NUM_CHROMA_MODE; + const int reducedModeNumber = uiMaxMode >> (m_pcEncCfg->m_reduceIntraChromaModesFullRD ? 1 : 2); //----- check chroma modes ----- uint32_t chromaCandModes[ NUM_CHROMA_MODE ]; CU::getIntraChromaCandModes( cu, chromaCandModes ); @@ -861,7 +862,6 @@ void IntraSearch::estIntraPredChromaQT( CodingUnit& cu, Partitioner& partitioner } } - int reducedModeNumber = 2; // reduce the number of chroma modes for (int i = 0; i < reducedModeNumber; i++) { modeDisable[satdModeList[uiMaxMode - 1 - i]] = true; // disable the last reducedModeNumber modes diff --git a/source/Lib/EncoderLib/RateCtrl.cpp b/source/Lib/EncoderLib/RateCtrl.cpp index 6c59c6b9d..b8eb28cbf 100644 --- a/source/Lib/EncoderLib/RateCtrl.cpp +++ b/source/Lib/EncoderLib/RateCtrl.cpp @@ -48,6 +48,11 @@ THE POSSIBILITY OF SUCH DAMAGE. /** \file RateCtrl.cpp \brief Rate control manager class */ +#ifdef VVENC_ENABLE_THIRDPARTY_JSON +#include "nlohmann/json.hpp" +#endif + +#include "vvenc/version.h" #include "RateCtrl.h" #include "CommonLib/Picture.h" @@ -245,18 +250,22 @@ void EncRCSeq::updateAfterPic ( int bits, int tgtBits ) void EncRCSeq::getTargetBitsFromFirstPass (const int poc, int &targetBits, double &frameVsGopRatio, bool &isNewScene, bool &refreshParameters) { - std::list::iterator it; - for ( it = firstPassData.begin(); it != firstPassData.end(); it++ ) + TRCPassStats* stats = nullptr; + for( auto& it : firstPassData ) { - if ( poc == it->poc ) + if( poc == it.poc ) { - targetBits = it->targetBits; - frameVsGopRatio = it->frameInGopRatio; - isNewScene = it->isNewScene; - refreshParameters = it->refreshParameters; - break; + stats = ⁢ } } + if( ! stats ) + { + THROW( "miss entry for poc " << poc << " in first pass rate control statistics" ); + } + targetBits = stats->targetBits; + frameVsGopRatio = stats->frameInGopRatio; + isNewScene = stats->isNewScene; + refreshParameters = stats->refreshParameters; } void EncRCSeq::setAllBitRatio( double basicLambda, double* equaCoeffA, double* equaCoeffB ) @@ -1107,13 +1116,16 @@ void EncRCPic::updateAlphaBetaIntra(double& alpha, double& beta) RateCtrl::RateCtrl() { - encRCSeq = NULL; - encRCGOP = NULL; - encRCPic = NULL; - flushPOC = -1; - rcPass = 0; - rcMaxPass = 0; - rcIsFinalPass = true; + m_pcEncCfg = nullptr; + encRCSeq = NULL; + encRCGOP = NULL; + encRCPic = NULL; + flushPOC = -1; + rcPass = 0; + rcIsFinalPass = true; +#ifdef VVENC_ENABLE_THIRDPARTY_JSON + m_pqpaStatsWritten = 0; +#endif } RateCtrl::~RateCtrl() @@ -1139,18 +1151,26 @@ void RateCtrl::destroy() m_listRCPictures.pop_front(); delete p; } + +#ifdef VVENC_ENABLE_THIRDPARTY_JSON + if ( m_rcStatsFHandle.is_open() ) + { + m_rcStatsFHandle.close(); + } + m_pqpaStatsWritten = 0; +#endif } -void RateCtrl::init( int totalFrames, int targetBitrate, int frameRate, int intraPeriod, int GOPSize, - int picWidth, int picHeight, int LCUWidth, int LCUHeight, int bitDepth, - const vvencGOPEntry GOPList[ VVENC_MAX_GOP ], int maxParallelFrames ) +void RateCtrl::init( const VVEncCfg& encCfg ) { destroy(); + m_pcEncCfg = &encCfg; + bool isLowdelay = true; - for ( int i = 0; i < GOPSize - 1; i++ ) + for ( int i = 0; i < m_pcEncCfg->m_GOPSize - 1; i++ ) { - if ( GOPList[ i ].m_POC > GOPList[ i + 1 ].m_POC ) + if ( m_pcEncCfg->m_GOPList[ i ].m_POC > m_pcEncCfg->m_GOPList[ i + 1 ].m_POC ) { isLowdelay = false; break; @@ -1159,27 +1179,28 @@ void RateCtrl::init( int totalFrames, int targetBitrate, int frameRate, int intr int numberOfLevel = 1; int adaptiveBit = 0; - if ( !isLowdelay && ( GOPSize == 32 || GOPSize == 16 || GOPSize == 8 ) ) + if ( !isLowdelay && ( m_pcEncCfg->m_GOPSize == 32 || m_pcEncCfg->m_GOPSize == 16 || m_pcEncCfg->m_GOPSize == 8 ) ) { - numberOfLevel = int( log( (double)GOPSize ) / log( 2.0 ) + 0.5 ) + 1; + numberOfLevel = int( log( (double)m_pcEncCfg->m_GOPSize ) / log( 2.0 ) + 0.5 ) + 1; } numberOfLevel++; // intra picture numberOfLevel++; // non-reference picture int* bitsRatio; - bitsRatio = new int[ GOPSize ]; - for ( int i = 0; i < GOPSize; i++ ) + bitsRatio = new int[ m_pcEncCfg->m_GOPSize ]; + for ( int i = 0; i < m_pcEncCfg->m_GOPSize; i++ ) { bitsRatio[ i ] = 10; - if ( !GOPList[ i ].m_refPic ) + if ( ! m_pcEncCfg->m_GOPList[ i ].m_refPic ) { bitsRatio[ i ] = 2; } } - double bpp = (double)( targetBitrate / (double)( frameRate * picWidth * picHeight ) ); - if ( GOPSize == 4 && isLowdelay ) + const int frameRate = (int)( (double)m_pcEncCfg->m_FrameRate / m_pcEncCfg->m_temporalSubsampleRatio + 0.5 ); + double bpp = (double)( m_pcEncCfg->m_RCTargetBitrate / (double)( frameRate * m_pcEncCfg->m_PadSourceWidth * m_pcEncCfg->m_PadSourceHeight ) ); + if ( m_pcEncCfg->m_GOPSize == 4 && isLowdelay ) { if ( bpp > 0.2 ) { @@ -1204,7 +1225,7 @@ void RateCtrl::init( int totalFrames, int targetBitrate, int frameRate, int intr adaptiveBit = 1; } - else if ( GOPSize == 8 && !isLowdelay ) + else if ( m_pcEncCfg->m_GOPSize == 8 && !isLowdelay ) { if ( bpp > 0.2 ) { @@ -1229,7 +1250,7 @@ void RateCtrl::init( int totalFrames, int targetBitrate, int frameRate, int intr adaptiveBit = 2; } - else if ( GOPSize == 16 && !isLowdelay ) + else if ( m_pcEncCfg->m_GOPSize == 16 && !isLowdelay ) { bitsRatio[ 0 ] = (int)( ( -0.5691 * bpp + 0.3577 ) * 1000 + 0.5 ); bitsRatio[ 1 ] = (int)( ( -0.0332 * bpp + 0.1782 ) * 1000 + 0.5 ); @@ -1250,7 +1271,7 @@ void RateCtrl::init( int totalFrames, int targetBitrate, int frameRate, int intr adaptiveBit = 2; } - else if ( GOPSize == 32 && !isLowdelay ) + else if ( m_pcEncCfg->m_GOPSize == 32 && !isLowdelay ) { static const int bitsRatioInit[ 4 ][ 6 ] = { { 16, 10, 8, 4, 2, 1 }, @@ -1287,44 +1308,44 @@ void RateCtrl::init( int totalFrames, int targetBitrate, int frameRate, int intr msg( VVENC_WARNING, "\n hierarchical bit allocation is not currently supported for the specified coding structure.\n" ); } - int* GOPID2Level = new int[ GOPSize ]; - for ( int i = 0; im_GOPSize ]; + for ( int i = 0; im_GOPSize; i++ ) { GOPID2Level[ i ] = 1; - if ( !GOPList[ i ].m_refPic ) + if ( ! m_pcEncCfg->m_GOPList[ i ].m_refPic ) { GOPID2Level[ i ] = 2; } } - if ( GOPSize == 4 && isLowdelay ) + if ( m_pcEncCfg->m_GOPSize == 4 && isLowdelay ) { static const int init[] = { 3, 2, 3, 1 }; std::copy_n( init, 4, GOPID2Level ); } - else if ( GOPSize == 8 && !isLowdelay ) + else if ( m_pcEncCfg->m_GOPSize == 8 && !isLowdelay ) { static const int init[] = { 1, 2, 3, 4, 4, 3, 4, 4 }; std::copy_n( init, 8, GOPID2Level ); } - else if ( GOPSize == 16 && !isLowdelay ) + else if ( m_pcEncCfg->m_GOPSize == 16 && !isLowdelay ) { static const int init[] = { 1, 2, 3, 4, 5, 5, 4, 5, 5, 3, 4, 5, 5, 4, 5, 5 }; std::copy_n( init, 16, GOPID2Level ); } - else if ( GOPSize == 32 && !isLowdelay ) + else if ( m_pcEncCfg->m_GOPSize == 32 && !isLowdelay ) { static const int init[] = { 1, 2, 3, 4, 5, 6, 6, 6, 6, 6, 4, 5, 6, 6, 5, 6, 6, 3, 4, 5, 6, 6, 5, 6, 6, 4, 5, 6, 6, 5, 6, 6 }; std::copy_n( init, 32, GOPID2Level ); } encRCSeq = new EncRCSeq; - encRCSeq->create( rcMaxPass == 1, totalFrames, targetBitrate, frameRate, intraPeriod, GOPSize, picWidth, picHeight, LCUWidth, LCUHeight, numberOfLevel, adaptiveBit, getFirstPassStats() ); + encRCSeq->create( m_pcEncCfg->m_RCNumPasses == 2, m_pcEncCfg->m_framesToBeEncoded, m_pcEncCfg->m_RCTargetBitrate, frameRate, m_pcEncCfg->m_IntraPeriod, m_pcEncCfg->m_GOPSize, m_pcEncCfg->m_PadSourceWidth, m_pcEncCfg->m_PadSourceHeight, m_pcEncCfg->m_CTUSize, m_pcEncCfg->m_CTUSize, numberOfLevel, adaptiveBit, getFirstPassStats() ); encRCSeq->initBitsRatio( bitsRatio ); encRCSeq->initGOPID2Level( GOPID2Level ); - encRCSeq->bitDepth = bitDepth; - if (rcMaxPass <= 0) encRCSeq->initPicPara(); - encRCSeq->fppParFrames = maxParallelFrames; + encRCSeq->bitDepth = m_pcEncCfg->m_internalBitDepth[ CH_L ]; + if (m_pcEncCfg->m_RCNumPasses <= 1) encRCSeq->initPicPara(); + encRCSeq->fppParFrames = m_pcEncCfg->m_maxParallelFrames; delete[] bitsRatio; delete[] GOPID2Level; @@ -1342,19 +1363,199 @@ void RateCtrl::destroyRCGOP() encRCGOP = NULL; } -void RateCtrl::setRCPass (const int pass, const int maxPass) +void RateCtrl::setRCPass(const VVEncCfg& encCfg, const int pass, const char* statsFName) { + m_pcEncCfg = &encCfg; rcPass = pass; - rcMaxPass = maxPass; - rcIsFinalPass = (pass >= maxPass); + rcIsFinalPass = (pass >= m_pcEncCfg->m_RCNumPasses - 1); + +#ifdef VVENC_ENABLE_THIRDPARTY_JSON + if( m_rcStatsFHandle.is_open() ) m_rcStatsFHandle.close(); + + const std::string name = statsFName != nullptr ? statsFName : ""; + if( name.length() ) + { + openStatsFile( name ); + if( rcIsFinalPass ) + { + readStatsFile(); + } + } +#else + CHECK( statsFName != nullptr && strlen( statsFName ) > 0, "reading/writing rate control statistics file not supported, please compile with json enabled" ); +#endif } +#ifdef VVENC_ENABLE_THIRDPARTY_JSON +void RateCtrl::openStatsFile(const std::string& name) +{ + if( rcIsFinalPass ) + { + m_rcStatsFHandle.open( name, std::ios::in ); + CHECK( m_rcStatsFHandle.fail(), "unable to open rate control statistics file for reading" ); + readStatsHeader(); + } + else + { + m_rcStatsFHandle.open( name, std::ios::trunc | std::ios::out ); + CHECK( m_rcStatsFHandle.fail(), "unable to open rate control statistics file for writing" ); + writeStatsHeader(); + } +} +#endif + +#ifdef VVENC_ENABLE_THIRDPARTY_JSON +void RateCtrl::writeStatsHeader() +{ + nlohmann::json header = { + { "version", VVENC_VERSION }, + { "SourceWidth", m_pcEncCfg->m_SourceWidth }, + { "SourceHeight", m_pcEncCfg->m_SourceHeight }, + { "CTUSize", m_pcEncCfg->m_CTUSize }, + { "GOPSize", m_pcEncCfg->m_GOPSize }, + { "IntraPeriod", m_pcEncCfg->m_IntraPeriod }, + { "PQPA", m_pcEncCfg->m_usePerceptQPA }, + { "QP", m_pcEncCfg->m_QP }, + { "RCInitialQP", m_pcEncCfg->m_RCInitialQP } + }; + m_rcStatsFHandle << header << std::endl; +} +#endif + +#ifdef VVENC_ENABLE_THIRDPARTY_JSON +void RateCtrl::readStatsHeader() +{ + std::string line; + if( ! std::getline( m_rcStatsFHandle, line ) ) + { + THROW( "unable to read header from rate control statistics file" ); + } + nlohmann::json header = nlohmann::json::parse( line ); + if( header.find( "version" ) == header.end() || ! header[ "version" ].is_string() + || header.find( "SourceWidth" ) == header.end() || ! header[ "SourceWidth" ].is_number() + || header.find( "SourceHeight" ) == header.end() || ! header[ "SourceHeight" ].is_number() + || header.find( "CTUSize" ) == header.end() || ! header[ "CTUSize" ].is_number() + || header.find( "GOPSize" ) == header.end() || ! header[ "GOPSize" ].is_number() + || header.find( "IntraPeriod" ) == header.end() || ! header[ "IntraPeriod" ].is_number() + || header.find( "PQPA" ) == header.end() || ! header[ "PQPA" ].is_boolean() + || header.find( "QP" ) == header.end() || ! header[ "QP" ].is_number() + || header.find( "RCInitialQP" ) == header.end() || ! header[ "RCInitialQP" ].is_number() + ) + { + THROW( "header line in rate control statistics file not recognized" ); + } + if( header[ "version" ] != VVENC_VERSION ) msg( VVENC_WARNING, "WARNING: wrong version in rate control statistics file\n" ); + if( header[ "SourceWidth" ] != m_pcEncCfg->m_SourceWidth ) msg( VVENC_WARNING, "WARNING: wrong frame width in rate control statistics file\n" ); + if( header[ "SourceHeight" ] != m_pcEncCfg->m_SourceHeight ) msg( VVENC_WARNING, "WARNING: wrong frame height in rate control statistics file\n" ); + if( header[ "CTUSize" ] != m_pcEncCfg->m_CTUSize ) msg( VVENC_WARNING, "WARNING: wrong CTU size in rate control statistics file\n" ); + if( header[ "GOPSize" ] != m_pcEncCfg->m_GOPSize ) msg( VVENC_WARNING, "WARNING: wrong GOP size in rate control statistics file\n" ); + if( header[ "IntraPeriod" ] != m_pcEncCfg->m_IntraPeriod ) msg( VVENC_WARNING, "WARNING: wrong intra period in rate control statistics file\n" ); +} +#endif + +void RateCtrl::storeStatsData( const TRCPassStats& statsData ) +{ +#ifdef VVENC_ENABLE_THIRDPARTY_JSON + nlohmann::json data = { + { "poc", statsData.poc }, + { "qp", statsData.qp }, + { "lambda", statsData.lambda }, + { "visActY", statsData.visActY }, + { "numBits", statsData.numBits }, + { "psnrY", statsData.psnrY }, + { "isIntra", statsData.isIntra }, + { "tempLayer", statsData.tempLayer } + }; + + if( m_rcStatsFHandle.is_open() ) + { + CHECK( ! m_rcStatsFHandle.good(), "unable to write to rate control statistics file" ); + if( m_listRCIntraPQPAStats.size() > m_pqpaStatsWritten ) + { + std::vector pqpaTemp; + while( m_pqpaStatsWritten < (int)m_listRCIntraPQPAStats.size() ) + { + pqpaTemp.push_back( m_listRCIntraPQPAStats[ m_pqpaStatsWritten ] ); + m_pqpaStatsWritten++; + } + data[ "pqpaStats" ] = pqpaTemp; + } + m_rcStatsFHandle << data << std::endl; + } + else + { + // ensure same precision for internal and written data by serializing internal data as well + std::stringstream iss; + iss << data; + data = nlohmann::json::parse( iss.str() ); + m_listRCFirstPassStats.push_back( TRCPassStats( data[ "poc" ], + data[ "qp" ], + data[ "lambda" ], + data[ "visActY" ], + data[ "numBits" ], + data[ "psnrY" ], + data[ "isIntra" ], + data[ "tempLayer" ] + ) ); + } +#else + m_listRCFirstPassStats.push_back( statsData ); +#endif +} + +#ifdef VVENC_ENABLE_THIRDPARTY_JSON +void RateCtrl::readStatsFile() +{ + CHECK( ! m_rcStatsFHandle.good(), "unable to read from rate control statistics file" ); + + int lineNum = 2; + std::string line; + while( std::getline( m_rcStatsFHandle, line ) ) + { + nlohmann::json data = nlohmann::json::parse( line ); + if( data.find( "poc" ) == data.end() || ! data[ "poc" ].is_number() + || data.find( "qp" ) == data.end() || ! data[ "qp" ].is_number() + || data.find( "lambda" ) == data.end() || ! data[ "lambda" ].is_number() + || data.find( "visActY" ) == data.end() || ! data[ "visActY" ].is_number() + || data.find( "numBits" ) == data.end() || ! data[ "numBits" ].is_number() + || data.find( "psnrY" ) == data.end() || ! data[ "psnrY" ].is_number() + || data.find( "isIntra" ) == data.end() || ! data[ "isIntra" ].is_boolean() + || data.find( "tempLayer" ) == data.end() || ! data[ "tempLayer" ].is_number() ) + { + THROW( "syntax of rate control statistics file in line " << lineNum << " not recognized: (" << line << ")" ); + } + m_listRCFirstPassStats.push_back( TRCPassStats( data[ "poc" ], + data[ "qp" ], + data[ "lambda" ], + data[ "visActY" ], + data[ "numBits" ], + data[ "psnrY" ], + data[ "isIntra" ], + data[ "tempLayer" ] + ) ); + if( data.find( "pqpaStats" ) != data.end() ) + { + CHECK( ! data[ "pqpaStats" ].is_array(), "pqpa array data in rate control statistics file not recognized" ); + std::vector pqpaTemp = data[ "pqpaStats" ]; + for( auto el : pqpaTemp ) + { + m_listRCIntraPQPAStats.push_back( el ); + } + } + lineNum++; + } +} +#endif + void RateCtrl::processFirstPassData (const int secondPassBaseQP) { CHECK( m_listRCFirstPassStats.size() == 0, "No data available from the first pass!" ); m_listRCFirstPassStats.sort( []( const TRCPassStats& a, const TRCPassStats& b ) { return a.poc < b.poc; } ); + // store start POC of last chunk of pictures + flushPOC = m_listRCFirstPassStats.back().poc - std::max( 32, m_pcEncCfg->m_GOPSize ); + // run a simple scene change detection detectNewScene(); @@ -1468,10 +1669,9 @@ void RateCtrl::adaptToSceneChanges() void RateCtrl::addRCPassStats (const int poc, const int qp, const double lambda, const uint16_t visActY, const uint32_t numBits, const double psnrY, const bool isIntra, const int tempLayer) { - if (rcPass < rcMaxPass) + if( ! rcIsFinalPass ) { - m_listRCFirstPassStats.push_back( TRCPassStats( poc, qp, lambda, visActY, - numBits, psnrY, isIntra, tempLayer ) ); + storeStatsData( TRCPassStats( poc, qp, lambda, visActY, numBits, psnrY, isIntra, tempLayer + int( !isIntra ) ) ); } } diff --git a/source/Lib/EncoderLib/RateCtrl.h b/source/Lib/EncoderLib/RateCtrl.h index c4a606942..1cfc754d2 100644 --- a/source/Lib/EncoderLib/RateCtrl.h +++ b/source/Lib/EncoderLib/RateCtrl.h @@ -59,6 +59,7 @@ THE POSSIBILITY OF SUCH DAMAGE. #include #include #include +#include namespace vvenc { struct Picture; @@ -84,7 +85,8 @@ namespace vvenc { TRCPassStats( const int _poc, const int _qp, const double _lambda, const uint16_t _visActY, uint32_t _numBits, double _psnrY, bool _isIntra, int _tempLayer ) : poc( _poc ), qp( _qp ), lambda( _lambda ), visActY( _visActY ), - numBits( _numBits ), psnrY( _psnrY ), isIntra( _isIntra ), tempLayer( _tempLayer + int( !_isIntra ) ), + numBits( _numBits ), psnrY( _psnrY ), isIntra( _isIntra ), + tempLayer( _tempLayer ), isNewScene( false ), refreshParameters( false ), frameInGopRatio( -1.0 ), targetBits( 0 ) {} int poc; @@ -250,13 +252,12 @@ namespace vvenc { RateCtrl(); ~RateCtrl(); - void init( int totFrames, int targetBitrate, int frameRate, int intraPeriod, int GOPSize, int picWidth, int picHeight, - int LCUWidth, int LCUHeight, int bitDepth, const vvencGOPEntry GOPList[ VVENC_MAX_GOP ], int maxParallelFrames ); + void init(const VVEncCfg& encCfg); void destroy(); void initRCGOP (const int numberOfPictures); void destroyRCGOP(); - void setRCPass (const int pass, const int maxPass); + void setRCPass (const VVEncCfg& encCfg, const int pass, const char* statsFName); void addRCPassStats (const int poc, const int qp, const double lambda, const uint16_t visActY, const uint32_t numBits, const double psnrY, const bool isIntra, const int tempLayer); void processFirstPassData (const int secondPassBaseQP); @@ -270,19 +271,32 @@ namespace vvenc { std::vector* getIntraPQPAStats() { return &m_listRCIntraPQPAStats; } public: - std::list m_listRCPictures; - EncRCSeq* encRCSeq; - EncRCGOP* encRCGOP; - EncRCPic* encRCPic; - std::mutex rcMutex; - int flushPOC; - int rcPass; - int rcMaxPass; - bool rcIsFinalPass; + std::list m_listRCPictures; + EncRCSeq* encRCSeq; + EncRCGOP* encRCGOP; + EncRCPic* encRCPic; + std::mutex rcMutex; + int flushPOC; + int rcPass; + bool rcIsFinalPass; + + protected: + void storeStatsData( const TRCPassStats& statsData ); +#ifdef VVENC_ENABLE_THIRDPARTY_JSON + void openStatsFile( const std::string& name ); + void writeStatsHeader(); + void readStatsHeader(); + void readStatsFile(); +#endif private: + const VVEncCfg* m_pcEncCfg; std::list m_listRCFirstPassStats; std::vector m_listRCIntraPQPAStats; +#ifdef VVENC_ENABLE_THIRDPARTY_JSON + std::fstream m_rcStatsFHandle; + int m_pqpaStatsWritten; +#endif }; } #endif diff --git a/source/Lib/apputils/CMakeLists.txt b/source/Lib/apputils/CMakeLists.txt index 7dbc69e81..61bbebb15 100644 --- a/source/Lib/apputils/CMakeLists.txt +++ b/source/Lib/apputils/CMakeLists.txt @@ -49,12 +49,17 @@ target_compile_definitions( ${LIB_NAME} PUBLIC $<$,$< target_compile_options( ${LIB_NAME} PRIVATE $<$,$>:-Wall -Werror > $<$:/W4 /WX /wd4100 /wd4127 /wd4244 /wd4245 /wd4251 /wd4310 /wd4389 /wd4456 /wd4457 /wd4458 /wd4459 /wd4505 /wd4701 /wd4702 /wd4703 /wd4996 >) - -target_include_directories( ${LIB_NAME} PRIVATE $ $ + +target_include_directories( ${LIB_NAME} PRIVATE $ $ SYSTEM INTERFACE $ $ ) target_include_directories( ${LIB_NAME} PRIVATE . .. ) +if( VVENC_ENABLE_THIRDPARTY_JSON ) + set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DVVENC_ENABLE_THIRDPARTY_JSON" ) + set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVVENC_ENABLE_THIRDPARTY_JSON" ) +endif() + if( TARGET INTEL_ITT) target_link_libraries( ${LIB_NAME} INTEL_ITT Threads::Threads vvenc ) else() diff --git a/source/Lib/apputils/VVEncAppCfg.cpp b/source/Lib/apputils/VVEncAppCfg.cpp index fa9392998..799662e72 100644 --- a/source/Lib/apputils/VVEncAppCfg.cpp +++ b/source/Lib/apputils/VVEncAppCfg.cpp @@ -88,6 +88,7 @@ enum BitDepthAndColorSpace YUV444_10, YUV400_8, YUV400_10, + YUV420_10_PACKED }; // ==================================================================================================================== @@ -226,6 +227,7 @@ const std::vector> BitColorSpaceToIntMap = { { "yuv420", YUV420_8 }, { "yuv420_10", YUV420_10 }, + { "yuv420_10_packed", YUV420_10_PACKED }, }; @@ -354,14 +356,15 @@ void setInputBitDepthAndColorSpace( VVEncAppCfg* cfg, int dbcs ) { switch( dbcs ) { - case YUV420_8 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_420; cfg->m_inputBitDepth[0] = 8; break; - case YUV420_10 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_420; cfg->m_inputBitDepth[0] = 10; break; - case YUV422_8 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_422; cfg->m_inputBitDepth[0] = 8; break; - case YUV422_10 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_422; cfg->m_inputBitDepth[0] = 10; break; - case YUV444_8 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_444; cfg->m_inputBitDepth[0] = 8; break; - case YUV444_10 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_444; cfg->m_inputBitDepth[0] = 10; break; - case YUV400_8 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_400; cfg->m_inputBitDepth[0] = 8; break; - case YUV400_10 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_400; cfg->m_inputBitDepth[0] = 10; break; + case YUV420_8 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_420; cfg->m_inputBitDepth[0] = 8; break; + case YUV420_10 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_420; cfg->m_inputBitDepth[0] = 10; break; + case YUV420_10_PACKED : cfg->m_inputFileChromaFormat = VVENC_CHROMA_420; cfg->m_inputBitDepth[0] = 10; cfg->m_packedYUVInput=true; break; + case YUV422_8 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_422; cfg->m_inputBitDepth[0] = 8; break; + case YUV422_10 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_422; cfg->m_inputBitDepth[0] = 10; break; + case YUV444_8 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_444; cfg->m_inputBitDepth[0] = 8; break; + case YUV444_10 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_444; cfg->m_inputBitDepth[0] = 10; break; + case YUV400_8 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_400; cfg->m_inputBitDepth[0] = 8; break; + case YUV400_10 : cfg->m_inputFileChromaFormat = VVENC_CHROMA_400; cfg->m_inputBitDepth[0] = 10; break; default: break; } } @@ -425,7 +428,7 @@ bool VVEncAppCfg::parseCfg( int argc, char* argv[] ) opts.addOptions() ("input,i", m_inputFileName, "original YUV input file name or '-' for reading from stdin") ("size,s", toSourceSize, "specify input resolution (WidthxHeight)") - ("format,c", toInputFormatBitdepth, "set input format (yuv420, yuv420_10)") + ("format,c", toInputFormatBitdepth, "set input format (yuv420, yuv420_10, yuv420_10_packed)") ("framerate,r", m_FrameRate, "temporal rate (framerate) e.g. 25,29,30,50,59,60 ") ("tickspersec", m_TicksPerSecond, "Ticks Per Second for dts generation, (1..27000000)") @@ -446,7 +449,9 @@ bool VVEncAppCfg::parseCfg( int argc, char* argv[] ) ("preset", toPreset, "select preset for specific encoding setting (faster, fast, medium, slow, slower)") ("bitrate,b", m_RCTargetBitrate, "bitrate for rate control (0: constant-QP encoding without rate control, otherwise bits/second)" ) - ("passes,p", m_RCNumPasses, "number of rate control passes (1,2) " ) + ("passes,p", m_RCNumPasses, "number of rate control passes (1,2)" ) + ("pass", m_RCPass, "rate control pass for two-pass rate control (-1,1,2)" ) + ("rcstatsfile", m_RCStatsFileName, "rate control statistics file" ) ("qp,q", m_QP, "quantization parameter, QP (0-63)") ("qpa", toQPA, "Enable perceptually motivated QP adaptation, XPSNR based (0:off, 1:on)", true) @@ -483,7 +488,7 @@ bool VVEncAppCfg::parseCfg( int argc, char* argv[] ) ("hrdparameterspresent,-hrd", toHrd, "Emit VUI HRD information (auto(-1),off(0),on(1); default: auto - only if needed by dependent options)", true) ("decodedpicturehash,-dph", toHashType, "Control generation of decode picture hash SEI messages, (0:off, 1:md5, 2:crc, 3:checksum)") ; - + if ( vvenc_is_tracing_enabled() ) { opts.setSubSection( "Tracing" ); @@ -523,37 +528,22 @@ bool VVEncAppCfg::parseCfg( int argc, char* argv[] ) if ( err.is_errored && ! warnUnknowParameter ) { - /* error report has already been printed on stderr */ + // error report has already been printed return false; } - // - // check own parameters - // - if( m_showVersion ) { return true; } - if( m_bitstreamFileName.empty() ) - { - cout << "error: A bitstream file name must be specified (--output=bit.266)" << std::endl; - return false; - } - - // this has to be set outside + // has to be set outside if ( m_internChromaFormat < 0 || m_internChromaFormat >= VVENC_NUM_CHROMA_FORMAT ) { m_internChromaFormat = m_inputFileChromaFormat; } - if( m_RCNumPasses < 0 ) - { - m_RCNumPasses = m_RCTargetBitrate > 0 ? 2 : 1; - } - - return true; + return checkCfg(); } @@ -670,13 +660,16 @@ bool VVEncAppCfg::parseCfgFF( int argc, char* argv[] ) opts.addOptions() ("IntraPeriod,-ip", m_IntraPeriod, "Intra period in frames, (-1: only first frame)") ("RefreshSec,-rs", m_IntraPeriodSec, "Intra period in seconds") - ("DecodingRefreshType,-dr", toDecRefreshType, "Intra refresh type (0:none, 1:CRA, 2:IDR, 3:IDR2, 4:RecPointSEI)") + ("DecodingRefreshType,-dr", toDecRefreshType, "Intra refresh type (0:none, 1:CRA, 2:IDR, 3:RecPointSEI, 4:IDR2)") ("GOPSize,g", m_GOPSize, "GOP size of temporal structure") ; opts.setSubSection("Rate control, Perceptual Quantization"); opts.addOptions() - ("NumPasses", m_RCNumPasses, "number of passes; 1: one-pass rate control; 2: two-pass rate control" ) + ("NumPasses", m_RCNumPasses, "number of rate control passes (1,2)" ) + ("Passes", m_RCNumPasses, "number of rate control passes (1,2)" ) + ("Pass", m_RCPass, "rate control pass for two-pass rate control (-1,1,2)" ) + ("RCStatsFile", m_RCStatsFileName, "rate control statistics file" ) ("TargetBitrate", m_RCTargetBitrate, "Rate control: target bit-rate [bps]" ) ("PerceptQPA,-qpa", m_usePerceptQPA, "Enable perceptually motivated QP adaptation, XPSNR based (0:off, 1:on)", true) @@ -729,6 +722,7 @@ bool VVEncAppCfg::parseCfgFF( int argc, char* argv[] ) ("VerticalPadding", m_aiPad[1], "Vertical source padding for conformance window mode 2") ("InputChromaFormat", toInputFileCoFormat, "input file chroma format (400, 420, 422, 444)") + ("PackedInput", m_packedYUVInput, "Enable 10-bit packed YUV input data ( pack 4 samples( 8-byte) into 5-bytes consecutively.") ; opts.setSubSection("Quality reporting metrics"); @@ -1067,7 +1061,8 @@ bool VVEncAppCfg::parseCfgFF( int argc, char* argv[] ) ("IBCFastMethod", m_IBCFastMethod, "Fast methods for IBC. 1:default, [2..6] speedups") ("BCW", m_BCW, "Enable Generalized Bi-prediction(Bcw) 0: disabled, 1: enabled, 2: fast") ("FastInferMerge", m_FIMMode, "Fast method to skip Inter/Intra modes. 0: off, [1..4] speedups") - ("NumIntraModesFullRD", m_numIntraModesFullRD, "Number Modes for Full RD Intra Search. Default: -1=Auto. If set to 1: 5% speedup 1% Loss for fast and faster") + ("NumIntraModesFullRD", m_numIntraModesFullRD, "Number modes for full RD intra search [-1, 1..3] (default: -1 auto)") + ("ReduceIntraChromaModesFullRD", m_reduceIntraChromaModesFullRD, "Reduce modes for chroma full RD intra search") ; opts.setSubSection("Input options"); @@ -1082,7 +1077,7 @@ bool VVEncAppCfg::parseCfgFF( int argc, char* argv[] ) opts.setSubSection("Reconstructed video options"); opts.addOptions() ("ClipOutputVideoToRec709Range", m_bClipOutputVideoToRec709Range, "Enable clipping output video to the Rec. 709 Range on saving when OutputBitDepth is less than InternalBitDepth") - ("PYUV", m_packedYUVMode, "Enable output 10-bit and 12-bit YUV data as 5-byte and 3-byte (respectively) packed YUV data. Ignored for interlaced output.") + ("PYUV", m_packedYUVOutput, "Enable output 10-bit and 12-bit YUV data as 5-byte and 3-byte (respectively) packed YUV data. Ignored for interlaced output.") ; @@ -1134,7 +1129,7 @@ bool VVEncAppCfg::parseCfgFF( int argc, char* argv[] ) // // parse command line parameters and read configuration files // - + po::setDefaults( opts ); po::ErrorReporter err; const list& argv_unhandled = po::scanArgv( opts, argc, (const char**) argv, err ); @@ -1195,113 +1190,167 @@ bool VVEncAppCfg::parseCfgFF( int argc, char* argv[] ) } } - // - // check own parameters - // - if( m_showVersion ) { return true; } - bool error = false; + // has to be set outside + if ( m_internChromaFormat < 0 || m_internChromaFormat >= VVENC_NUM_CHROMA_FORMAT ) + { + m_internChromaFormat = m_inputFileChromaFormat; + } + + return checkCfg(); +} + +std::string VVEncAppCfg::getConfigAsString( vvencMsgLevel eMsgLevel ) const +{ + std::stringstream css; + if( eMsgLevel >= VVENC_DETAILS ) + { + css << "Input File : " << m_inputFileName << "\n"; + css << "Bitstream File : " << m_bitstreamFileName << "\n"; + css << "Reconstruction File : " << m_reconFileName << "\n"; + css << "RC Statistics File : " << m_RCStatsFileName << "\n"; + } + + const VVEncAppCfg* configPtr = this; + std::string config ( vvenc_get_config_as_string( (vvenc_config*)configPtr, eMsgLevel) ); + css << config; + css << "\n"; + + return css.str(); +} + +bool VVEncAppCfg::checkCfg() +{ + bool ret = true; + + // check bitstream file name in encode and decode mode if( m_bitstreamFileName.empty() ) { - cout << "error: A bitstream file name must be specified (BitstreamFile)" << std::endl; - error = true; + cout << "error: bitstream file name must be specified (--output=bit.266)" << std::endl; + ret = false; } - else + + // check remaining parameters in encode mode only + if( m_decode ) + { + return ret; + } + + // check internal config parameters and derive adapted parameter set + VVEncAppCfg appCfg = *this; + if( vvenc_init_config_parameter( &appCfg ) ) + { + ret = false; + } + + // check remaining parameter set + return appCfg.xCheckCfg(); +} + +bool VVEncAppCfg::xCheckCfg() +{ + bool ret = true; + + if( m_inputFileName.empty() ) + { + cout << "error: input yuv file name must be specified (--input=video.yuv)" << std::endl; + ret = false; + } + if( ! strcmp( m_inputFileName.c_str(), "-" ) + && m_RCNumPasses > 1 + && m_RCPass < 0 ) + { + cout << "error: two pass rate control within single application call and reading from stdin not supported" << std::endl; + ret = false; + } + + if( ! m_bitstreamFileName.empty() ) { if( m_decodeBitstreams[0][0] != '\0' && m_decodeBitstreams[0] == m_bitstreamFileName ) { - cout << "error: Debug bitstream and the output bitstream cannot be equal" << std::endl; - error = true; + cout << "error: debug bitstream and the output bitstream cannot be equal" << std::endl; + ret = false; } if( m_decodeBitstreams[1][0] != '\0' && m_decodeBitstreams[1] == m_bitstreamFileName ) { - cout << "error: Decode2 bitstream and the output bitstream cannot be equal" << std::endl; - error = true; + cout << "error: decode2 bitstream and the output bitstream cannot be equal" << std::endl; + ret = false; } } - if( m_inputFileChromaFormat < 0 || m_inputFileChromaFormat >= VVENC_NUM_CHROMA_FORMAT ) +#ifndef VVENC_ENABLE_THIRDPARTY_JSON + if( m_RCPass > 0 ) { - cout << "error: Input chroma format must be either 400, 420, 422 or 444" << std::endl; - error = true; + cout << "error: reading/writing rate control statistics file not supported, please disable pass parameter or compile with json enabled" << std::endl; + ret = false; } - - if ( error ) + if( ! m_RCStatsFileName.empty() ) { - return false; + cout << "error: reading/writing rate control statistics file not supported, please disable rcstatsfile parameter or compile with json enabled" << std::endl; + ret = false; } +#endif - if( m_decode ) + if( m_RCPass > 0 && m_RCStatsFileName.empty() ) { - return true; + cout << "error: rate control statistics file name must be specify, when pass parameter is set (--rcstatsfile=stats.json)" << std::endl; + ret = false; + } + if( m_RCNumPasses == 1 && ! m_RCStatsFileName.empty() ) + { + cout << "error: rate control statistics file not supported in single pass encoding" << std::endl; + ret = false; } - // - // set intern derived parameters (for convenience purposes only) - // - - if ( m_internChromaFormat < 0 || m_internChromaFormat >= VVENC_NUM_CHROMA_FORMAT ) + if( m_inputFileChromaFormat != VVENC_CHROMA_400 && m_inputFileChromaFormat != VVENC_CHROMA_420 ) { - m_internChromaFormat = m_inputFileChromaFormat; + cout << "error: input chroma format must be either 400, 420" << std::endl; + ret = false; } - if( m_RCNumPasses < 0 ) + if( m_packedYUVInput ) { - m_RCNumPasses = m_RCTargetBitrate > 0 ? 2 : 1; + if( vvenc_get_width_of_component( m_internChromaFormat, m_SourceWidth, 0 ) % 4 != 0 ) + { + cout << "error: unsupported input width for packed input (width must be a multiple of 4)" << std::endl; + ret = false; + } + + if( (m_internChromaFormat == VVENC_CHROMA_420 || m_internChromaFormat == VVENC_CHROMA_422) && + vvenc_get_width_of_component( m_internChromaFormat, m_SourceWidth, 1 ) % 4 != 0 ) + { + cout << "error: unsupported input width for packed input (chroma width must be a multiple of 4)" << std::endl; + ret = false; + } } - if( m_packedYUVMode && ! m_reconFileName.empty() ) + if( m_packedYUVOutput && ! m_reconFileName.empty() ) { + // if output bitdepth not defined, use internal bitdepth as default value + if (m_outputBitDepth[0] == 0) m_outputBitDepth[0] = m_internalBitDepth[0]; + if (m_outputBitDepth[1] == 0) m_outputBitDepth[1] = m_outputBitDepth[0]; + if( ( m_outputBitDepth[ 0 ] != 10 && m_outputBitDepth[ 0 ] != 12 ) || ( ( ( m_SourceWidth ) & ( 1 + ( m_outputBitDepth[ 0 ] & 3 ) ) ) != 0 ) ) { - cout << "error: Invalid output bit-depth or image width for packed YUV output, aborting" << std::endl; - error = true; + cout << "error: invalid output bit-depth or image width for packed YUV output" << std::endl; + ret = false; } if( ( m_internChromaFormat != VVENC_CHROMA_400 ) && ( ( m_outputBitDepth[ 1 ] != 10 && m_outputBitDepth[ 1 ] != 12 ) || ( ( vvenc_get_width_of_component( m_internChromaFormat, m_SourceWidth, 1 ) & ( 1 + ( m_outputBitDepth[ 1 ] & 3 ) ) ) != 0 ) ) ) { - cout << "error: Invalid chroma output bit-depth or image width for packed YUV output, aborting" << std::endl; - error = true; - } - - if ( error ) - { - return false; + cout << "error: invalid chroma output bit-depth or image width for packed YUV output" << std::endl; + ret = false; } } - // check config parameter - VVEncAppCfg appCfg = *this; - if ( vvenc_init_config_parameter(&appCfg) ) - { - return false; - } - - return true; + return ret; } -std::string VVEncAppCfg::getConfigAsString( vvencMsgLevel eMsgLevel ) const -{ - std::stringstream css; - if( eMsgLevel >= VVENC_DETAILS ) - { - css << "Input File : " << m_inputFileName << "\n"; - css << "Bitstream File : " << m_bitstreamFileName << "\n"; - css << "Reconstruction File : " << m_reconFileName << "\n"; - } - - const VVEncAppCfg* configPtr = this; - std::string config ( vvenc_get_config_as_string( (vvenc_config*)configPtr, eMsgLevel) ); - css << config; - css << "\n"; - - return css.str(); -} } // namespace diff --git a/source/Lib/apputils/YuvFileIO.cpp b/source/Lib/apputils/YuvFileIO.cpp index 7588fe363..ae5f45165 100644 --- a/source/Lib/apputils/YuvFileIO.cpp +++ b/source/Lib/apputils/YuvFileIO.cpp @@ -74,6 +74,7 @@ bool readYuvPlane( std::istream& fd, vvencYUVPlane& yuvPlane, bool is16bit, int fileBitDepth, + int packedYUVInput, const int& compID, const vvencChromaFormat& inputChFmt, const vvencChromaFormat& internChFmt @@ -116,6 +117,41 @@ bool readYuvPlane( std::istream& fd, } } } + else if ( packedYUVInput ) + { + const int fileStride_packed = ( width * 5 / 4 ); + std::vector bufVec( fileStride_packed ); + + for( int y = 0; y < height; y++ ) + { + uint8_t *buf = &( bufVec[0] ); + + // read a new line + fd.read( reinterpret_cast( buf ), fileStride_packed ); + if ( fd.eof() || fd.fail() ) + { + return false; + } + + for ( int x = 0; x < width; x += 4 ) + { + int64_t iTemp = 0; + unsigned char* pucTemp = reinterpret_cast< unsigned char* >( &iTemp ); + pucTemp[0] = buf[0]; + pucTemp[1] = buf[1]; + pucTemp[2] = buf[2]; + pucTemp[3] = buf[3]; + pucTemp[4] = buf[4]; + + dst[x+0] = 0x03ff & (iTemp>>0); + dst[x+1] = 0x03ff & (iTemp>>10); + dst[x+2] = 0x03ff & (iTemp>>20); + dst[x+3] = 0x03ff & (iTemp>>30); + buf += 5; + } + dst += stride; + } + } else { std::vector bufVec( fileStride ); @@ -485,15 +521,9 @@ int YuvFileIO::open( const std::string &fileName, bool bWriteMode, const int fil m_packedYUVMode = packedYUVMode; m_readStdin = false; - if( m_packedYUVMode && (m_bufferChrFmt == VVENC_CHROMA_400) ) - { - m_lastError = "\nERROR: write packed yuv for chroma 400 not supported"; - return -1; - } - - if( m_packedYUVMode && !bWriteMode ) + if( m_packedYUVMode && !bWriteMode && m_fileBitdepth != 10 ) { - m_lastError = "\nERROR: yuv file input - no packed mode support"; + m_lastError = "\nERROR: file bitdepth for packed yuv input must be 10"; return -1; } @@ -569,15 +599,28 @@ void YuvFileIO::skipYuvFrames( int numFrames, int width, int height ) //set the frame size according to the chroma format std::streamoff frameSize = 0; - unsigned wordsize = ( m_fileBitdepth > 8 ) ? 2 : 1; const int numComp = (m_fileChrFmt==VVENC_CHROMA_400) ? 1 : 3; - for ( int i = 0; i < numComp; i++ ) + + if( m_packedYUVMode) + { + for ( int i = 0; i < numComp; i++ ) + { + const int csx_file = ( (i == 0) || (m_fileChrFmt==VVENC_CHROMA_444) ) ? 0 : 1; + const int csy_file = ( (i == 0) || (m_fileChrFmt!=VVENC_CHROMA_420) ) ? 0 : 1; + frameSize += (( ( width * 5 / 4 ) >> csx_file) * (height >> csy_file)); + } + } + else { - const int csx_file = ( (i == 0) || (m_fileChrFmt==VVENC_CHROMA_444) ) ? 0 : 1; - const int csy_file = ( (i == 0) || (m_fileChrFmt!=VVENC_CHROMA_420) ) ? 0 : 1; - frameSize += ( width >> csx_file ) * ( height >> csy_file ); + unsigned wordsize = ( m_fileBitdepth > 8 ) ? 2 : 1; + for ( int i = 0; i < numComp; i++ ) + { + const int csx_file = ( (i == 0) || (m_fileChrFmt==VVENC_CHROMA_444) ) ? 0 : 1; + const int csy_file = ( (i == 0) || (m_fileChrFmt!=VVENC_CHROMA_420) ) ? 0 : 1; + frameSize += ( width >> csx_file ) * ( height >> csy_file ); + } + frameSize *= wordsize; } - frameSize *= wordsize; const std::streamoff offset = frameSize * numFrames; @@ -610,6 +653,12 @@ int YuvFileIO::readYuvBuf( vvencYUVBuffer& yuvInBuf, bool& eof ) return -1; } + if ( m_packedYUVMode && ( 0 != (yuvInBuf.planes[0].width >> 1) % 4 ) ) + { + m_lastError = "unsupported file width for packed input"; + return -1; + } + const bool monochromFix = ( m_bufferChrFmt==VVENC_CHROMA_400 && m_fileChrFmt!=VVENC_CHROMA_400 ); const bool is16bit = m_fileBitdepth > 8; const int desired_bitdepth = m_MSBExtendedBitDepth + m_bitdepthShift; @@ -631,7 +680,7 @@ int YuvFileIO::readYuvBuf( vvencYUVBuffer& yuvInBuf, bool& eof ) if( m_readStdin ) { - if ( ! readYuvPlane( std::cin, yuvPlane, is16bit, m_fileBitdepth, comp, m_fileChrFmt, m_bufferChrFmt ) ) + if ( ! readYuvPlane( std::cin, yuvPlane, is16bit, m_fileBitdepth, m_packedYUVMode, comp, m_fileChrFmt, m_bufferChrFmt ) ) { eof = true; return 0; @@ -639,7 +688,7 @@ int YuvFileIO::readYuvBuf( vvencYUVBuffer& yuvInBuf, bool& eof ) } else { - if ( ! readYuvPlane( m_cHandle, yuvPlane, is16bit, m_fileBitdepth, comp, m_fileChrFmt, m_bufferChrFmt ) ) + if ( ! readYuvPlane( m_cHandle, yuvPlane, is16bit, m_fileBitdepth, m_packedYUVMode, comp, m_fileChrFmt, m_bufferChrFmt ) ) { eof = true; return 0; diff --git a/source/Lib/vvenc/CMakeLists.txt b/source/Lib/vvenc/CMakeLists.txt index c431377e9..21899b1fe 100644 --- a/source/Lib/vvenc/CMakeLists.txt +++ b/source/Lib/vvenc/CMakeLists.txt @@ -88,15 +88,21 @@ target_compile_definitions( ${LIB_NAME} PUBLIC $<$,$< target_compile_options( ${LIB_NAME} PRIVATE $<$,$>:-Wall -Werror -Wno-deprecated-register -Wno-unused-const-variable -Wno-unknown-attributes> $<$:-Wall -Werror -Wno-unused-function -Wno-unused-variable -Wno-sign-compare -fdiagnostics-show-option> $<$:/W4 /WX /wd4100 /wd4127 /wd4244 /wd4245 /wd4251 /wd4310 /wd4389 /wd4456 /wd4457 /wd4458 /wd4459 /wd4505 /wd4701 /wd4702 /wd4703 /wd4996 >) - + if( CMAKE_COMPILER_IS_GNUCC AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 7.0 ) target_compile_options( ${LIB_NAME} PRIVATE $<$: -Wno-array-bounds> ) endif() -target_include_directories( ${LIB_NAME} PRIVATE $ $ +target_include_directories( ${LIB_NAME} PRIVATE $ $ SYSTEM INTERFACE $ $ ) target_include_directories( ${LIB_NAME} PRIVATE . .. ../DecoderLib ../EncoderLib ../CommonLib ../CommonLib/x86 ) +if( VVENC_ENABLE_THIRDPARTY_JSON ) + set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DVVENC_ENABLE_THIRDPARTY_JSON" ) + set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVVENC_ENABLE_THIRDPARTY_JSON" ) + target_include_directories( ${LIB_NAME} PRIVATE ../../../thirdparty/nlohmann_json/single_include ) +endif() + if( TARGET INTEL_ITT) target_link_libraries( ${LIB_NAME} INTEL_ITT Threads::Threads ) else() diff --git a/source/Lib/vvenc/vvenc.cpp b/source/Lib/vvenc/vvenc.cpp index 5bd5ca8ec..a55696cb6 100644 --- a/source/Lib/vvenc/vvenc.cpp +++ b/source/Lib/vvenc/vvenc.cpp @@ -240,7 +240,7 @@ VVENC_DECL int vvenc_encoder_set_RecYUVBufferCallback(vvencEncoder *enc, void * return VVENC_OK; } -VVENC_DECL int vvenc_init_pass( vvencEncoder *enc, int pass ) +VVENC_DECL int vvenc_init_pass( vvencEncoder *enc, int pass, const char * statsFName ) { auto d = (vvenc::VVEncImpl*)enc; if (!d) @@ -248,7 +248,7 @@ VVENC_DECL int vvenc_init_pass( vvencEncoder *enc, int pass ) return VVENC_ERR_INITIALIZE; } - return d->initPass( pass ); + return d->initPass( pass, statsFName ); } diff --git a/source/Lib/vvenc/vvencCfg.cpp b/source/Lib/vvenc/vvencCfg.cpp index 322058224..54ec32645 100644 --- a/source/Lib/vvenc/vvencCfg.cpp +++ b/source/Lib/vvenc/vvencCfg.cpp @@ -346,6 +346,7 @@ VVENC_DECL void vvenc_config_default(vvenc_config *c ) c->m_RCTargetBitrate = 0; c->m_RCNumPasses = -1; + c->m_RCPass = -1; c->m_SegmentMode = VVENC_SEG_OFF; @@ -622,6 +623,9 @@ VVENC_DECL void vvenc_config_default(vvenc_config *c ) c->m_quantThresholdVal = -1; c->m_qtbttSpeedUp = 1; +#if 1//QTBTT_SPEED3 + c->m_qtbttSpeedUpMode = 0; +#endif c->m_fastLocalDualTreeMode = 0; @@ -649,6 +653,8 @@ VVENC_DECL void vvenc_config_default(vvenc_config *c ) memset( c->m_traceFile, '\0', sizeof(c->m_traceFile) ); c->m_numIntraModesFullRD = -1; + c->m_reduceIntraChromaModesFullRD = false; + // init default preset vvenc_init_preset( c, vvencPresetMode::VVENC_MEDIUM ); @@ -812,7 +818,13 @@ VVENC_DECL bool vvenc_init_config_parameter( vvenc_config *c ) } // rate control - if( c->m_RCNumPasses < 0 ) c->m_RCNumPasses = 1; + if( c->m_RCNumPasses < 0 ) + { + if( c->m_RCPass > 0 ) + c->m_RCNumPasses = 2; + else + c->m_RCNumPasses = c->m_RCTargetBitrate > 0 ? 2 : 1; + } // threading if( c->m_numThreads < 0 ) @@ -841,7 +853,7 @@ VVENC_DECL bool vvenc_init_config_parameter( vvenc_config *c ) // quantization threshold if( c->m_quantThresholdVal < 0 ) { - c->m_quantThresholdVal = c->m_DepQuantEnabled ? 8 : 6; + c->m_quantThresholdVal = 8; } // MCTF @@ -1244,7 +1256,7 @@ VVENC_DECL bool vvenc_init_config_parameter( vvenc_config *c ) c->m_cuQpDeltaSubdiv = 0; if ( c->m_usePerceptQPA && c->m_QP <= vvenc::MAX_QP_PERCEPT_QPA - && c->m_CTUSize == 128 + && ( c->m_CTUSize == 128 || ( c->m_CTUSize == 64 && c->m_PadSourceWidth <= 1024 && c->m_PadSourceHeight <= 640 ) ) && c->m_PadSourceWidth <= 2048 && c->m_PadSourceHeight <= 1280 ) { @@ -2033,10 +2045,10 @@ static bool checkCfgParameter( vvenc_config *c ) vvenc_confirmParameter( c, c->m_level == vvencLevel::VVENC_LEVEL_AUTO, "can not determin level"); - vvenc_confirmParameter( c, c->m_fastInterSearchModem_fastInterSearchMode>VVENC_FASTINTERSEARCH_MODE3, "Error: FastInterSearchMode parameter out of range" ); + vvenc_confirmParameter( c, c->m_fastInterSearchModem_fastInterSearchMode>VVENC_FASTINTERSEARCH_MODE3, "Error: FastInterSearchMode parameter out of range" ); vvenc_confirmParameter( c, c->m_motionEstimationSearchMethod < 0 || c->m_motionEstimationSearchMethod >= VVENC_MESEARCH_NUMBER_OF_METHODS, "Error: FastSearch parameter out of range" ); - vvenc_confirmParameter( c, c->m_motionEstimationSearchMethodSCC < 0 || c->m_motionEstimationSearchMethodSCC > 3, "Error: FastSearchSCC parameter out of range" ); - vvenc_confirmParameter( c, c->m_internChromaFormat >= VVENC_NUM_CHROMA_FORMAT, "Intern chroma format must be either 400, 420, 422 or 444" ); + vvenc_confirmParameter( c, c->m_motionEstimationSearchMethodSCC < 0 || c->m_motionEstimationSearchMethodSCC > 3, "Error: FastSearchSCC parameter out of range" ); + vvenc_confirmParameter( c, c->m_internChromaFormat > VVENC_CHROMA_420, "Intern chroma format must be either 400, 420" ); switch ( c->m_conformanceWindowMode) { @@ -2137,8 +2149,8 @@ static bool checkCfgParameter( vvenc_config *c ) #endif - vvenc_confirmParameter( c, (c->m_HdrMode != VVENC_HDR_OFF && c->m_internalBitDepth[0] < 10 ) , "internalBitDepth must be at least 10 bit for HDR"); - vvenc_confirmParameter( c, (c->m_HdrMode != VVENC_HDR_OFF && c->m_internChromaFormat != VVENC_CHROMA_420 ) ,"internChromaFormat must YCbCr 4:2:0 for HDR"); + vvenc_confirmParameter( c, (c->m_HdrMode != VVENC_HDR_OFF && c->m_internalBitDepth[0] < 10 ) , "InternalBitDepth must be at least 10 bit for HDR"); + vvenc_confirmParameter( c, (c->m_HdrMode != VVENC_HDR_OFF && c->m_internChromaFormat != VVENC_CHROMA_420 ) ,"ChromaFormatIDC must be YCbCr 4:2:0 for HDR"); vvenc_confirmParameter( c, (c->m_contentLightLevel[0] < 0 || c->m_contentLightLevel[0] > 10000), "max content light level must 0 <= cll <= 10000 "); vvenc_confirmParameter( c, (c->m_contentLightLevel[1] < 0 || c->m_contentLightLevel[1] > 10000), "max average content light level must 0 <= cll <= 10000 "); @@ -2222,7 +2234,11 @@ static bool checkCfgParameter( vvenc_config *c ) vvenc_confirmParameter( c, c->m_IBCFastMethod < 0 || c->m_IBCFastMethod > 6,"IBCFastMethod out of range [0..6]"); vvenc_confirmParameter( c, c->m_BCW < 0 || c->m_BCW > 2, "BCW out of range [0..2]"); vvenc_confirmParameter( c, c->m_FIMMode < 0 || c->m_FIMMode > 4, "FastInferMerge out of range [0..4]"); +#if QTBTT_SPEED3 + vvenc_confirmParameter( c, c->m_qtbttSpeedUp < 0 || c->m_qtbttSpeedUp > 7, "QtbttExtraFast out of range [0..7]"); +#else vvenc_confirmParameter( c, c->m_qtbttSpeedUp < 0 || c->m_qtbttSpeedUp > 3, "QtbttExtraFast out of range [0..3]"); +#endif const int fimModeMap[] = { 0, 3, 19, 27, 29 }; c->m_FastInferMerge = fimModeMap[ c->m_FIMMode ]; @@ -2233,6 +2249,12 @@ static bool checkCfgParameter( vvenc_config *c ) c->m_FastInferMerge = ( hbm << 3 ) | lbm; } +#if QTBTT_SPEED3 + c->m_qtbttSpeedUpMode = (c->m_qtbttSpeedUp > 2) ? (c->m_qtbttSpeedUp - 2) : 0; + const int QTBTSMModeMap[] = { 0, 1, 3, 4, 5, 7 }; + c->m_qtbttSpeedUpMode = QTBTSMModeMap[c->m_qtbttSpeedUpMode]; +#endif + if( c->m_alf ) { vvenc_confirmParameter( c, c->m_maxNumAlfAlternativesChroma < 1 || c->m_maxNumAlfAlternativesChroma > VVENC_MAX_NUM_ALF_ALTERNATIVES_CHROMA, std::string( std::string( "The maximum number of ALF Chroma filter alternatives must be in the range (1-" ) + std::to_string( VVENC_MAX_NUM_ALF_ALTERNATIVES_CHROMA ) + std::string( ", inclusive)" ) ).c_str() ); @@ -2245,6 +2267,8 @@ static bool checkCfgParameter( vvenc_config *c ) vvenc_confirmParameter( c, c->m_RCTargetBitrate == 0 && c->m_RCNumPasses != 1, "Only single pass encoding supported, when rate control is disabled" ); vvenc_confirmParameter( c, c->m_RCNumPasses < 1 || c->m_RCNumPasses > 2, "Only one pass or two pass encoding supported" ); + vvenc_confirmParameter( c, c->m_RCNumPasses < 2 && c->m_RCPass > 1, "Only one pass supported in single pass encoding" ); + vvenc_confirmParameter( c, c->m_RCPass != -1 && ( c->m_RCPass < 1 || c->m_RCPass > 2 ), "Invalid pass parameter, only -1, 1 or 2 supported" ); vvenc_confirmParameter( c, c->m_RCTargetBitrate > 0 && c->m_maxParallelFrames > 4, "Up to 4 parallel frames supported with rate control" ); vvenc_confirmParameter(c, !((c->m_level==VVENC_LEVEL1) @@ -2317,17 +2341,16 @@ static bool checkCfgParameter( vvenc_config *c ) vvenc_confirmParameter(c, c->m_confWinTop % vvenc::SPS::getWinUnitY(c->m_internChromaFormat) != 0, "Top conformance window offset must be an integer multiple of the specified chroma subsampling"); vvenc_confirmParameter(c, c->m_confWinBottom % vvenc::SPS::getWinUnitY(c->m_internChromaFormat) != 0, "Bottom conformance window offset must be an integer multiple of the specified chroma subsampling"); - vvenc_confirmParameter(c, c->m_numThreads < 0, "NumThreads out of range" ); + vvenc_confirmParameter(c, c->m_numThreads < 0, "NumThreads out of range" ); vvenc_confirmParameter(c, c->m_ensureWppBitEqual < 0 || c->m_ensureWppBitEqual > 1, "WppBitEqual out of range (0,1)"); vvenc_confirmParameter(c, c->m_useAMaxBT < 0 || c->m_useAMaxBT > 1, "AMaxBT out of range (0,1)"); vvenc_confirmParameter(c, c->m_cabacInitPresent < 0 || c->m_cabacInitPresent > 1, "CabacInitPresent out of range (0,1)"); vvenc_confirmParameter(c, c->m_alfTempPred < 0 || c->m_alfTempPred > 1, "ALFTempPred out of range (0,1)"); vvenc_confirmParameter(c, c->m_alfSpeed < 0 || c->m_alfSpeed > 1, "ALFSpeed out of range (0,1)"); - vvenc_confirmParameter(c, c->m_alfSpeed > 0 && c->m_maxTempLayer == 1, "ALFSpeed can only be enabled for cascaded GOP structures utilizing temporal scalability!"); - vvenc_confirmParameter(c, c->m_maxTempLayer - c->m_alfSpeed <= 0, "ALFSpeed disables ALF for this temporal configuration. Disable ALF if intended, or turn off ALFSpeed!"); + vvenc_confirmParameter(c, c->m_maxTempLayer > 1 && c->m_maxTempLayer - c->m_alfSpeed <= 0, "ALFSpeed disables ALF for this temporal configuration. Disable ALF if intended, or turn off ALFSpeed!"); vvenc_confirmParameter(c, c->m_saoEncodingRate < 0.0 || c->m_saoEncodingRate > 1.0, "SaoEncodingRate out of range [0.0 .. 1.0]"); vvenc_confirmParameter(c, c->m_saoEncodingRateChroma < 0.0 || c->m_saoEncodingRateChroma > 1.0, "SaoEncodingRateChroma out of range [0.0 .. 1.0]"); - vvenc_confirmParameter(c, c->m_maxParallelFrames < 0, "MaxParallelFrames out of range" ); + vvenc_confirmParameter(c, c->m_maxParallelFrames < 0, "MaxParallelFrames out of range" ); vvenc_confirmParameter(c, c->m_numThreads > 0 && c->m_ensureWppBitEqual == 0, "NumThreads > 0 requires WppBitEqual > 0"); @@ -2761,7 +2784,7 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_log2MinCodingBlockSize = 5; // speedups - c->m_qtbttSpeedUp = 3; + c->m_qtbttSpeedUp = 7; c->m_contentBasedFastQtbt = 0; c->m_usePbIntraFast = 1; c->m_useFastMrg = 2; @@ -2772,6 +2795,8 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_useEarlyCU = 2; c->m_bIntegerET = 1; c->m_IntraEstDecBit = 3; + c->m_numIntraModesFullRD = 1; + c->m_reduceIntraChromaModesFullRD = true; // tools c->m_RDOQ = 2; @@ -2808,7 +2833,7 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_log2MinCodingBlockSize = 2; // speedups - c->m_qtbttSpeedUp = 3; + c->m_qtbttSpeedUp = 7; c->m_contentBasedFastQtbt = 1; c->m_usePbIntraFast = 1; c->m_useFastMrg = 2; @@ -2819,8 +2844,13 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_useEarlyCU = 1; c->m_bIntegerET = 1; c->m_IntraEstDecBit = 3; + c->m_numIntraModesFullRD = 1; + c->m_reduceIntraChromaModesFullRD = true; // tools + c->m_alf = 1; + c->m_alfSpeed = 1; + c->m_ccalf = 1; c->m_RDOQ = 2; c->m_SignDataHidingEnabled = 1; c->m_LMChroma = 1; @@ -2854,7 +2884,7 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_log2MinCodingBlockSize = 2; // speedups - c->m_qtbttSpeedUp = 2; + c->m_qtbttSpeedUp = 3; c->m_contentBasedFastQtbt = 1; c->m_usePbIntraFast = 1; c->m_useFastMrg = 2; @@ -2864,7 +2894,9 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_FIMMode = 2; c->m_useEarlyCU = 1; c->m_bIntegerET = 0; - c->m_IntraEstDecBit = 3; + c->m_IntraEstDecBit = 2; + c->m_numIntraModesFullRD = -1; + c->m_reduceIntraChromaModesFullRD = true; // tools c->m_RDOQ = 2; @@ -2872,10 +2904,12 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_Affine = 2; c->m_alf = 1; c->m_alfSpeed = 1; + c->m_allowDisFracMMVD = 1; c->m_BDOF = 1; c->m_ccalf = 1; c->m_DMVR = 1; c->m_AMVRspeed = 5; + c->m_JointCbCrMode = 1; c->m_LFNST = 1; c->m_LMChroma = 1; c->m_lumaReshapeEnable = 2; @@ -2913,8 +2947,8 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_log2MinCodingBlockSize = 2; // speedups - c->m_qtbttSpeedUp = 2; - c->m_contentBasedFastQtbt = 1; + c->m_qtbttSpeedUp = 3; + c->m_contentBasedFastQtbt = 0; c->m_usePbIntraFast = 1; c->m_useFastMrg = 2; c->m_fastLocalDualTreeMode = 1; @@ -2924,6 +2958,8 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_useEarlyCU = 0; c->m_bIntegerET = 0; c->m_IntraEstDecBit = 2; + c->m_numIntraModesFullRD = -1; + c->m_reduceIntraChromaModesFullRD = false; // tools c->m_Affine = 2; @@ -2990,6 +3026,8 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_useEarlyCU = 0; c->m_bIntegerET = 0; c->m_IntraEstDecBit = 1; + c->m_numIntraModesFullRD = -1; + c->m_reduceIntraChromaModesFullRD = false; // tools c->m_Affine = 2; @@ -3005,7 +3043,7 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_EDO = 2; c->m_Geo = 1; c->m_AMVRspeed = 1; - c->m_ISP = 3; + c->m_ISP = 1; c->m_JointCbCrMode = 1; c->m_LFNST = 1; c->m_LMChroma = 1; @@ -3013,7 +3051,7 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_vvencMCTF.MCTF = 2; c->m_vvencMCTF.MCTFSpeed = 0; c->m_MIP = 1; - c->m_useFastMIP = 4; + c->m_useFastMIP = 0; c->m_MMVD = 3; c->m_MRL = 1; c->m_MTSImplicit = 1; @@ -3059,6 +3097,8 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_useEarlyCU = 0; c->m_bIntegerET = 0; c->m_IntraEstDecBit = 1; + c->m_numIntraModesFullRD = -1; + c->m_reduceIntraChromaModesFullRD = false; // tools c->m_Affine = 1; @@ -3130,6 +3170,8 @@ VVENC_DECL int vvenc_init_preset( vvenc_config *c, vvencPresetMode preset ) c->m_useEarlyCU = 1; c->m_bIntegerET = 1; c->m_IntraEstDecBit = 3; + c->m_numIntraModesFullRD = -1; + c->m_reduceIntraChromaModesFullRD = false; // tools c->m_Affine = 2; @@ -3374,6 +3416,7 @@ VVENC_DECL const char* vvenc_get_config_as_string( vvenc_config *c, vvencMsgLeve if ( c->m_RCTargetBitrate > 0 ) { css << "Passes:" << c->m_RCNumPasses << " "; + css << "Pass:" << c->m_RCPass << " "; css << "TargetBitrate:" << c->m_RCTargetBitrate << " "; css << "RCInitialQP:" << c->m_RCInitialQP << " "; css << "RCForceIntraQP:" << c->m_RCForceIntraQP << " "; diff --git a/source/Lib/vvenc/vvencimpl.cpp b/source/Lib/vvenc/vvencimpl.cpp index 232f58c23..6d06ce418 100644 --- a/source/Lib/vvenc/vvencimpl.cpp +++ b/source/Lib/vvenc/vvencimpl.cpp @@ -162,6 +162,7 @@ int VVEncImpl::init( const vvenc_config& config ) #if HANDLE_EXCEPTION catch( std::exception& e ) { + msg( VVENC_ERROR, "\n%s\n", e.what() ); m_cErrorString = e.what(); return VVENC_ERR_UNSPECIFIED; } @@ -172,7 +173,7 @@ int VVEncImpl::init( const vvenc_config& config ) return VVENC_OK; } -int VVEncImpl::initPass( int pass ) +int VVEncImpl::initPass( int pass, const char* statsFName ) { if( !m_bInitialized ){ return VVENC_ERR_INITIALIZE; } if( pass > 1 ) @@ -183,25 +184,18 @@ int VVEncImpl::initPass( int pass ) return VVENC_ERR_NOT_SUPPORTED; } - if( pass > 1 && m_eState != INTERNAL_STATE_FINALIZED ) - { - std::stringstream css; - css << "initPass(" << pass << ") cannot initPass " << pass << " without having flushed the last pass. flush encoder till all frames are processed"; - m_cErrorString = css.str(); - return VVENC_ERR_INITIALIZE; - } - if ( m_pEncLib ) { #if HANDLE_EXCEPTION try #endif { - m_pEncLib->initPass( pass ); + m_pEncLib->initPass( pass, statsFName ); } #if HANDLE_EXCEPTION catch( std::exception& e ) { + msg( VVENC_ERROR, "\n%s\n", e.what() ); m_cErrorString = e.what(); return VVENC_ERR_UNSPECIFIED; } @@ -229,6 +223,7 @@ int VVEncImpl::uninit() #if HANDLE_EXCEPTION catch( std::exception& e ) { + msg( VVENC_ERROR, "\n%s\n", e.what() ); m_cErrorString = e.what(); return VVENC_ERR_UNSPECIFIED; } @@ -371,6 +366,7 @@ int VVEncImpl::encode( vvencYUVBuffer* pcYUVBuffer, vvencAccessUnit* pcAccessUni #if HANDLE_EXCEPTION catch( std::exception& e ) { + msg( VVENC_ERROR, "\n%s\n", e.what() ); m_cErrorString = e.what(); return VVENC_ERR_UNSPECIFIED; } @@ -689,7 +685,7 @@ int VVEncImpl::decodeBitstream( const char* FileName, const char* trcFile, const Picture cPicture; cPicture.poc=-8000; #if ENABLE_TRACING - g_trace_ctx = tracing_init( trcFile, trcRule ); + g_trace_ctx = tracing_init( trcFile, trcRule ); #endif std::string filename(FileName ); @@ -698,12 +694,12 @@ int VVEncImpl::decodeBitstream( const char* FileName, const char* trcFile, const #endif { ret = tryDecodePicture( &cPicture, -1, filename, ffwdDecoder, nullptr, false, cPicture.poc, false ); - if( ret ) { msg( VVENC_ERROR, "decoding failed"); } + if( ret ) { msg( VVENC_ERROR, "decoding failed\n"); } } #if HANDLE_EXCEPTION catch( std::exception& e ) { - msg( VVENC_ERROR, "decoding failed %s", e.what() ); + msg( VVENC_ERROR, "decoding failed: %s\n", e.what() ); return VVENC_ERR_UNSPECIFIED; } #endif diff --git a/source/Lib/vvenc/vvencimpl.h b/source/Lib/vvenc/vvencimpl.h index 8662fdc36..f2f93db30 100644 --- a/source/Lib/vvenc/vvencimpl.h +++ b/source/Lib/vvenc/vvencimpl.h @@ -98,7 +98,7 @@ class VVEncImpl int init( const vvenc_config& rcVVEncCfg ); - int initPass( int pass ); + int initPass( int pass, const char* statsFName ); int uninit(); bool isInitialized() const; @@ -124,7 +124,7 @@ class VVEncImpl static const char* getErrorMsg( int nRet ); static const char* getVersionNumber(); - + static void registerMsgCbf( void * ctx, vvencLoggingCallback msgFnc ); ///< set message output function for encoder lib. if not set, no messages will be printed. static const char* setSIMDExtension( const char* simdId ); ///< tries to set given simd extensions used. if not supported by cpu, highest possible extension level will be set and returned. static const char* getCompileInfoString(); diff --git a/test/vvenclibtest/vvenclibtest.cpp b/test/vvenclibtest/vvenclibtest.cpp index 84d266e14..c524cde92 100644 --- a/test/vvenclibtest/vvenclibtest.cpp +++ b/test/vvenclibtest/vvenclibtest.cpp @@ -573,7 +573,7 @@ int callingOrderRegularInitPass() vvenc_YUVBuffer_alloc_buffer( pcYuvPicture, vvencParams.m_internChromaFormat, vvencParams.m_SourceWidth, vvencParams.m_SourceHeight ); fillInputPic( pcYuvPicture ); - if( 0 != vvenc_init_pass( enc, 0 ) ) + if( 0 != vvenc_init_pass( enc, 0, nullptr ) ) { vvenc_YUVBuffer_free( pcYuvPicture, true ); vvenc_encoder_close( enc ); @@ -629,7 +629,7 @@ int callingOrderRegularInit2Pass() vvenc_YUVBuffer_alloc_buffer( pcYuvPicture, vvencParams.m_internChromaFormat, vvencParams.m_SourceWidth, vvencParams.m_SourceHeight ); fillInputPic( pcYuvPicture ); - if( 0 != vvenc_init_pass( enc, 0 ) ) + if( 0 != vvenc_init_pass( enc, 0, nullptr ) ) { vvenc_YUVBuffer_free( pcYuvPicture, true ); return -1; @@ -653,7 +653,7 @@ int callingOrderRegularInit2Pass() } } - if( 0 != vvenc_init_pass( enc, 1 ) ) + if( 0 != vvenc_init_pass( enc, 1, nullptr ) ) { vvenc_YUVBuffer_free( pcYuvPicture, true ); vvenc_accessUnit_free( AU, true ); @@ -696,6 +696,7 @@ int checkSDKDefaultBehaviourRC() vvenc_config vvencParams; defaultSDKInit( vvencParams, 500000 ); vvencParams.m_internChromaFormat = VVENC_CHROMA_420; + vvencParams.m_RCNumPasses = 1; vvencEncoder *enc = vvenc_encoder_create(); if( nullptr == enc ) diff --git a/thirdparty/nlohmann_json/CITATION.cff b/thirdparty/nlohmann_json/CITATION.cff new file mode 100644 index 000000000..5dd417697 --- /dev/null +++ b/thirdparty/nlohmann_json/CITATION.cff @@ -0,0 +1,14 @@ +cff-version: 1.1.0 +message: "If you use this software, please cite it as below." +authors: + - family-names: Lohmann + given-names: Niels + orcid: https://orcid.org/0000-0001-9037-795X + email: mail@nlohmann.me + website: https://nlohmann.me +title: "JSON for Modern C++" +version: 3.10.2 +date-released: 2021 +license: MIT +repository-code: "https://github.com/nlohmann" +url: https://json.nlohmann.me diff --git a/thirdparty/nlohmann_json/CODE_OF_CONDUCT.md b/thirdparty/nlohmann_json/CODE_OF_CONDUCT.md new file mode 100644 index 000000000..770b8173e --- /dev/null +++ b/thirdparty/nlohmann_json/CODE_OF_CONDUCT.md @@ -0,0 +1,46 @@ +# Contributor Covenant Code of Conduct + +## Our Pledge + +In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to making participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, gender identity and expression, level of experience, nationality, personal appearance, race, religion, or sexual identity and orientation. + +## Our Standards + +Examples of behavior that contributes to creating a positive environment include: + +* Using welcoming and inclusive language +* Being respectful of differing viewpoints and experiences +* Gracefully accepting constructive criticism +* Focusing on what is best for the community +* Showing empathy towards other community members + +Examples of unacceptable behavior by participants include: + +* The use of sexualized language or imagery and unwelcome sexual attention or advances +* Trolling, insulting/derogatory comments, and personal or political attacks +* Public or private harassment +* Publishing others' private information, such as a physical or electronic address, without explicit permission +* Other conduct which could reasonably be considered inappropriate in a professional setting + +## Our Responsibilities + +Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior. + +Project maintainers have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful. + +## Scope + +This Code of Conduct applies both within project spaces and in public spaces when an individual is representing the project or its community. Examples of representing a project or community include using an official project e-mail address, posting via an official social media account, or acting as an appointed representative at an online or offline event. Representation of a project may be further defined and clarified by project maintainers. + +## Enforcement + +Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the project team at mail@nlohmann.me. The project team will review and investigate all complaints, and will respond in a way that it deems appropriate to the circumstances. The project team is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately. + +Project maintainers who do not follow or enforce the Code of Conduct in good faith may face temporary or permanent repercussions as determined by other members of the project's leadership. + +## Attribution + +This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version] + +[homepage]: http://contributor-covenant.org +[version]: http://contributor-covenant.org/version/1/4/ diff --git a/thirdparty/nlohmann_json/ChangeLog.md b/thirdparty/nlohmann_json/ChangeLog.md new file mode 100644 index 000000000..4ef9b9beb --- /dev/null +++ b/thirdparty/nlohmann_json/ChangeLog.md @@ -0,0 +1,2614 @@ +# Changelog +All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/). + +## [3.10.2](https://github.com/nlohmann/json/releases/tag/3.10.2) (2021-08-26) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.1...3.10.2) + +- Annoying -Wundef on new JSON\_DIAGNOSTICS macro [\#2975](https://github.com/nlohmann/json/issues/2975) +- += issue with multiple redirection. [\#2970](https://github.com/nlohmann/json/issues/2970) +- "incomplete type ‘nlohmann::detail::wide\_string\_input\_helper" compilation error [\#2969](https://github.com/nlohmann/json/issues/2969) + +- Fix -Wunused warnings on JSON\_DIAGNOSTICS [\#2976](https://github.com/nlohmann/json/pull/2976) ([gcerretani](https://github.com/gcerretani)) + +## [v3.10.1](https://github.com/nlohmann/json/releases/tag/v3.10.1) (2021-08-24) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.0...v3.10.1) + +- JSON\_DIAGNOSTICS assertion for ordered\_json [\#2962](https://github.com/nlohmann/json/issues/2962) +- Inserting in unordered json using a pointer retains the leading slash [\#2958](https://github.com/nlohmann/json/issues/2958) +- Test \#9: test-cbor test case sample.json fails in debug mode - Stack overflow [\#2955](https://github.com/nlohmann/json/issues/2955) +- 3.10.0 broke at least the Bear project [\#2953](https://github.com/nlohmann/json/issues/2953) +- 2 tests fail in 3.10.0: cmake\_fetch\_content\_configure, cmake\_fetch\_content\_build [\#2951](https://github.com/nlohmann/json/issues/2951) +- ctest \(58+60,/67 cmake\_import\_configure\) fails when build with -D JSON\_Install:BOOL=OFF because of missing nlohmann\_jsonTargets.cmake [\#2946](https://github.com/nlohmann/json/issues/2946) +- Document vcpkg usage [\#2944](https://github.com/nlohmann/json/issues/2944) +- Linker error LNK2005 when compiling \(x64\) json-3.10.0.zip with Visual Studio 2019 16.11.1 [\#2941](https://github.com/nlohmann/json/issues/2941) +- Move Travis jobs to travis-ci.com [\#2938](https://github.com/nlohmann/json/issues/2938) + +- Fixed typo in docs/api/basic\_json/parse.md [\#2968](https://github.com/nlohmann/json/pull/2968) ([mb0202](https://github.com/mb0202)) +- Add link to Homebrew package [\#2966](https://github.com/nlohmann/json/pull/2966) ([nlohmann](https://github.com/nlohmann)) +- Fix parent update for diagnostics with ordered\_json [\#2963](https://github.com/nlohmann/json/pull/2963) ([nlohmann](https://github.com/nlohmann)) +- Set stack size for some unit tests when using MSVC [\#2961](https://github.com/nlohmann/json/pull/2961) ([nlohmann](https://github.com/nlohmann)) +- Add regression test [\#2960](https://github.com/nlohmann/json/pull/2960) ([nlohmann](https://github.com/nlohmann)) +- Update Travis badge [\#2959](https://github.com/nlohmann/json/pull/2959) ([nlohmann](https://github.com/nlohmann)) +- Fix some extra ";" clang warnings [\#2957](https://github.com/nlohmann/json/pull/2957) ([Hallot](https://github.com/Hallot)) +- Add documentation for integration via vcpkg [\#2954](https://github.com/nlohmann/json/pull/2954) ([nlohmann](https://github.com/nlohmann)) +- Avoid duplicate AppVeyor builds [\#2952](https://github.com/nlohmann/json/pull/2952) ([nlohmann](https://github.com/nlohmann)) +- 🚨 fix gdb\_pretty\_printer failure on basic types [\#2950](https://github.com/nlohmann/json/pull/2950) ([senyai](https://github.com/senyai)) +- Add header to use value\_t [\#2948](https://github.com/nlohmann/json/pull/2948) ([nlohmann](https://github.com/nlohmann)) +- Skip some tests if JSON\_Install is not set [\#2947](https://github.com/nlohmann/json/pull/2947) ([nlohmann](https://github.com/nlohmann)) +- Remove outdated json\_unit test binary [\#2945](https://github.com/nlohmann/json/pull/2945) ([nlohmann](https://github.com/nlohmann)) +- Updating the Homebrew Command [\#2943](https://github.com/nlohmann/json/pull/2943) ([amirmasoudabdol](https://github.com/amirmasoudabdol)) + +## [v3.10.0](https://github.com/nlohmann/json/releases/tag/v3.10.0) (2021-08-17) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.9.1...v3.10.0) + +- Latest version 3.9.1 uses throw instead of JSON\_THROW in the amalgamated json.hpp file [\#2934](https://github.com/nlohmann/json/issues/2934) +- Copy to a variable inside a Structure [\#2933](https://github.com/nlohmann/json/issues/2933) +- warning C4068: unknown pragma 'GCC' on MSVC/cl [\#2924](https://github.com/nlohmann/json/issues/2924) +- Errors during ninja test [\#2918](https://github.com/nlohmann/json/issues/2918) +- compiler warning: "not return a value" [\#2917](https://github.com/nlohmann/json/issues/2917) +- Comparison floating points causes warning [\#2909](https://github.com/nlohmann/json/issues/2909) +- Why can't I have std::vector\ testList? [\#2900](https://github.com/nlohmann/json/issues/2900) +- \[json.hpp\] from releases doesnt work [\#2897](https://github.com/nlohmann/json/issues/2897) +- g++ \(11\) -Wuseless-cast gives lots of warnings [\#2893](https://github.com/nlohmann/json/issues/2893) +- Cannot serialize and immediatly deserialize json to/from bson [\#2892](https://github.com/nlohmann/json/issues/2892) +- Floating-point precision conversion error [\#2876](https://github.com/nlohmann/json/issues/2876) +- How to avoid escaping for an already escaped string in .dump\(\) [\#2870](https://github.com/nlohmann/json/issues/2870) +- can't parse std::vector\ [\#2869](https://github.com/nlohmann/json/issues/2869) +- ASAN detects memory leaks [\#2865](https://github.com/nlohmann/json/issues/2865) +- Binary subtype field cannot represent all CBOR tags [\#2863](https://github.com/nlohmann/json/issues/2863) +- string literals possibly being parsed as another type due to the presence of only digits and full-stops [\#2852](https://github.com/nlohmann/json/issues/2852) +- json::parse\(\) works only with absolute paths [\#2851](https://github.com/nlohmann/json/issues/2851) +- Compiler Warnings on Raspberry Pi OS [\#2850](https://github.com/nlohmann/json/issues/2850) +- Braced initialization and aggregate initialization behavior is different for `json::array()` function call. [\#2848](https://github.com/nlohmann/json/issues/2848) +- 3.9.1: test suite is failing [\#2845](https://github.com/nlohmann/json/issues/2845) +- Documentation for macro JSON\_NO\_IO is missing [\#2842](https://github.com/nlohmann/json/issues/2842) +- Assertion failure when inserting into arrays with JSON\_DIAGNOSTICS set [\#2838](https://github.com/nlohmann/json/issues/2838) +- HELP! There is a memory leak in the code?! [\#2837](https://github.com/nlohmann/json/issues/2837) +- Elegant conversion of a 2-D-json array to a standard C++ array [\#2805](https://github.com/nlohmann/json/issues/2805) +- Swift Package Manager support [\#2802](https://github.com/nlohmann/json/issues/2802) +- Referencing a subkey which doesn't exist gives crash [\#2797](https://github.com/nlohmann/json/issues/2797) +- Failed benchmark due to renamed branch [\#2796](https://github.com/nlohmann/json/issues/2796) +- Build Errors with VS 2019 and json Version 3.9.1 when attempting to replicate SAX Example [\#2782](https://github.com/nlohmann/json/issues/2782) +- Value with spaces cannot be parsed [\#2781](https://github.com/nlohmann/json/issues/2781) +- \[Question\] CBOR rfc support. [\#2779](https://github.com/nlohmann/json/issues/2779) +- Using JSON.hpp header file in Visual Studio 2013 \(C++ Project\) [\#2775](https://github.com/nlohmann/json/issues/2775) +- compilation error on clang-8 + C++17 [\#2759](https://github.com/nlohmann/json/issues/2759) +- Undefined symbol EOF [\#2755](https://github.com/nlohmann/json/issues/2755) +- Parsing a string into json object behaves differently under g++ and MinGW compilers. [\#2746](https://github.com/nlohmann/json/issues/2746) +- big git history size [\#2742](https://github.com/nlohmann/json/issues/2742) +- How to get reference of std::vector\ [\#2735](https://github.com/nlohmann/json/issues/2735) +- CMake failure in VS2019 Community [\#2734](https://github.com/nlohmann/json/issues/2734) +- Possibility to use with custom c++ version to use in intel sgx enclaves [\#2730](https://github.com/nlohmann/json/issues/2730) +- Possibility to use without the dependency to file io and streams to use in intel sgx enclaves [\#2728](https://github.com/nlohmann/json/issues/2728) +- error C2784& error C2839... in my visual studio 2015 compiler [\#2726](https://github.com/nlohmann/json/issues/2726) +- `-fno-expection` not respected anymore in 3.9.1 [\#2725](https://github.com/nlohmann/json/issues/2725) +- When exceptions disabled with JSON\_NOEXCEPTION, lib just aborts without any message [\#2724](https://github.com/nlohmann/json/issues/2724) +- Critical error detected c0000374 on windows10 msvc 2019 16.8.5 [\#2710](https://github.com/nlohmann/json/issues/2710) +- unused parameter error/warning [\#2706](https://github.com/nlohmann/json/issues/2706) +- How to store data into a Map from json file [\#2691](https://github.com/nlohmann/json/issues/2691) +- Tests do not compile with pre-release glibc [\#2686](https://github.com/nlohmann/json/issues/2686) +- compile errors .... chromium-style [\#2680](https://github.com/nlohmann/json/issues/2680) +- .dump\(\) not allowing compact form [\#2678](https://github.com/nlohmann/json/issues/2678) +- error: no matching function for call to ‘nlohmann::basic\_json\<\>::value\(int, std::set\&\)’ [\#2671](https://github.com/nlohmann/json/issues/2671) +- Compiler warning: unused parameter [\#2668](https://github.com/nlohmann/json/issues/2668) +- Deserializing to a struct as shown on the project homepage throws compile time errors [\#2665](https://github.com/nlohmann/json/issues/2665) +- Unable to compile on MSVC 2019 with SDL checking enabled: This function or variable may be unsafe [\#2664](https://github.com/nlohmann/json/issues/2664) +- terminating with uncaught exception of type nlohmann::detail::type\_error: \[json.exception.type\_error.302\] type must be array, but is object [\#2661](https://github.com/nlohmann/json/issues/2661) +- unused-parameter on OSX when Diagnostics is off [\#2658](https://github.com/nlohmann/json/issues/2658) +- std::pair wrong serialization [\#2655](https://github.com/nlohmann/json/issues/2655) +- The result of json is\_number\_integer\(\) function is wrong when read a json file [\#2653](https://github.com/nlohmann/json/issues/2653) +- 2 backslash cause problem [\#2652](https://github.com/nlohmann/json/issues/2652) +- No support for using an external/system copy of Hedley [\#2651](https://github.com/nlohmann/json/issues/2651) +- error: incomplete type 'qfloat16' used in type trait expression [\#2650](https://github.com/nlohmann/json/issues/2650) +- Unused variable in exception class when not using improved diagnostics [\#2646](https://github.com/nlohmann/json/issues/2646) +- I am trying to do this - converting from wstring works incorrectly! [\#2642](https://github.com/nlohmann/json/issues/2642) +- Exception 207 On ARM Processor During Literal String Parsing [\#2634](https://github.com/nlohmann/json/issues/2634) +- double free or corruption \(!prev\) error on Json push\_back and write [\#2632](https://github.com/nlohmann/json/issues/2632) +- nlohmann::detail::parse\_error: syntax error while parsing CBOR string: expected length specification \(0x60-0x7B\) or indefinite string type \(0x7F\) [\#2629](https://github.com/nlohmann/json/issues/2629) +- please allow disabling implicit conversions in non-single-file use [\#2621](https://github.com/nlohmann/json/issues/2621) +- Preserve decimal formatting [\#2618](https://github.com/nlohmann/json/issues/2618) +- Visual Studio Visual Assist code issues reported by VA code inspection of file json.hpp [\#2615](https://github.com/nlohmann/json/issues/2615) +- Missing get function and no viable overloaded '=' on mac [\#2610](https://github.com/nlohmann/json/issues/2610) +- corruption when parse from string [\#2603](https://github.com/nlohmann/json/issues/2603) +- Parse from byte-vector results in compile error [\#2602](https://github.com/nlohmann/json/issues/2602) +- Memory leak when working on ARM Linux [\#2601](https://github.com/nlohmann/json/issues/2601) +- Unhandled exception in test-cbor.exe Stack overflow when debugging project with Visual Studio 2019 16.7.7 compiled with c++17 or c++latest [\#2598](https://github.com/nlohmann/json/issues/2598) +- Error in download\_test\_data.vcxproj when compiling with Visual Studio 2019 16.7.7 Professional msbuild on Windows 10 2004 Professional [\#2594](https://github.com/nlohmann/json/issues/2594) +- Warnings C4715 and C4127 when building json-3.9.1 with Visual Studio 2019 16.7.7 [\#2592](https://github.com/nlohmann/json/issues/2592) +- I tried some change to dump\(\) for \[1,2,3...\] [\#2584](https://github.com/nlohmann/json/issues/2584) +- try/catch block does not catch parsing error [\#2579](https://github.com/nlohmann/json/issues/2579) +- Serializing uint64\_t is broken for large values [\#2578](https://github.com/nlohmann/json/issues/2578) +- deserializing arrays should be part of the library [\#2575](https://github.com/nlohmann/json/issues/2575) +- Deserialization to std::array with non-default constructable types fails [\#2574](https://github.com/nlohmann/json/issues/2574) +- Compilation error when trying to use same type for number\_integer\_t and number\_unsigned\_t in basic\_json template specification. [\#2573](https://github.com/nlohmann/json/issues/2573) +- compiler error: directive output may be truncated writing between 2 and 8 bytes [\#2572](https://github.com/nlohmann/json/issues/2572) +- Incorrect convert map to json when key cannot construct an string i.e. int [\#2564](https://github.com/nlohmann/json/issues/2564) +- no matching function for call to ‘nlohmann::basic\_json\<\>::basic\_json\(\\)’ [\#2559](https://github.com/nlohmann/json/issues/2559) +- type\_error factory creates a dangling pointer \(in VisualStudio 2019\) [\#2535](https://github.com/nlohmann/json/issues/2535) +- Cannot assign from ordered\_json vector\ to value in not ordered json [\#2528](https://github.com/nlohmann/json/issues/2528) +- Qt6: Break changes [\#2519](https://github.com/nlohmann/json/issues/2519) +- valgrind memcheck Illegal instruction when use nlohmann::json::parse [\#2518](https://github.com/nlohmann/json/issues/2518) +- Buffer overflow [\#2515](https://github.com/nlohmann/json/issues/2515) +- Including CTest in the top-level CMakeLists.txt sets BUILD\_TESTING=ON for parent projects [\#2513](https://github.com/nlohmann/json/issues/2513) +- Compilation error when using NLOHMANN\_JSON\_SERIALIZE\_ENUM ordered\_json on libc++ [\#2491](https://github.com/nlohmann/json/issues/2491) +- Missing "void insert\( InputIt first, InputIt last \);" overload in nlohmann::ordered\_map [\#2490](https://github.com/nlohmann/json/issues/2490) +- Could not find a package configuration file provided by "nlohmann\_json" [\#2482](https://github.com/nlohmann/json/issues/2482) +- json becomes empty for unknown reason [\#2470](https://github.com/nlohmann/json/issues/2470) +- Using std::wstring as StringType fails compiling [\#2459](https://github.com/nlohmann/json/issues/2459) +- Sample code in GIF slide outdated \(cannot use emplace\(\) with array\) [\#2457](https://github.com/nlohmann/json/issues/2457) +- from\_json\ is treated as an array on latest MSVC [\#2453](https://github.com/nlohmann/json/issues/2453) +- MemorySanitizer: use-of-uninitialized-value [\#2449](https://github.com/nlohmann/json/issues/2449) +- I need help [\#2441](https://github.com/nlohmann/json/issues/2441) +- type conversion failing with clang ext\_vector\_type [\#2436](https://github.com/nlohmann/json/issues/2436) +- json::parse\(\) can't be resolved under specific circumstances [\#2427](https://github.com/nlohmann/json/issues/2427) +- from\_\*\(ptr, len\) deprecation [\#2426](https://github.com/nlohmann/json/issues/2426) +- Error ONLY in release mode [\#2425](https://github.com/nlohmann/json/issues/2425) +- "Custom data source" exemple make no sense [\#2423](https://github.com/nlohmann/json/issues/2423) +- Compile errors [\#2421](https://github.com/nlohmann/json/issues/2421) +- Refuses to compile in project [\#2419](https://github.com/nlohmann/json/issues/2419) +- Compilation failure of tests with C++20 standard \(caused by change of u8 literals\) [\#2413](https://github.com/nlohmann/json/issues/2413) +- No matching function for call to 'input\_adapter' under Xcode of with nlohmann version 3.9.1 [\#2412](https://github.com/nlohmann/json/issues/2412) +- Git tags are not valid semvers [\#2409](https://github.com/nlohmann/json/issues/2409) +- after dump, stderr output disappear [\#2403](https://github.com/nlohmann/json/issues/2403) +- Using custom string. [\#2398](https://github.com/nlohmann/json/issues/2398) +- value\(\) throws unhandled exception for partially specified json object [\#2393](https://github.com/nlohmann/json/issues/2393) +- assertion on runtime causes program to stop when accessing const json with missing key [\#2392](https://github.com/nlohmann/json/issues/2392) +- Usage with -fno-elide-constructors causes dump\(\) output to be array of `null`s [\#2387](https://github.com/nlohmann/json/issues/2387) +- Build fails with clang-cl due to override of CMAKE\_CXX\_COMPILER\(?\) [\#2384](https://github.com/nlohmann/json/issues/2384) +- std::optional not working with primitive types [\#2383](https://github.com/nlohmann/json/issues/2383) +- Unexpected array when initializing a json const& on gcc 4.8.5 using uniform syntax [\#2370](https://github.com/nlohmann/json/issues/2370) +- setprecision support [\#2362](https://github.com/nlohmann/json/issues/2362) +- json::parse\(allow\_exceptions = false\) documentation is misleading. [\#2360](https://github.com/nlohmann/json/issues/2360) +- std::begin and std::end usage without specifying std namespace [\#2359](https://github.com/nlohmann/json/issues/2359) +- Custom object conversion to json hangs in background thread [\#2358](https://github.com/nlohmann/json/issues/2358) +- Add support of nullable fields to NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE and NLOHMANN\_DEFINE\_TYPE\_INTRUSIVE [\#2356](https://github.com/nlohmann/json/issues/2356) +- the portfile for the vcpkg is not working. [\#2351](https://github.com/nlohmann/json/issues/2351) +- Compiler warns of implicit fallthrough when defining preprocessor macro NDEBUG [\#2348](https://github.com/nlohmann/json/issues/2348) +- Compile error on Intel compiler running in Windows [\#2346](https://github.com/nlohmann/json/issues/2346) +- Build error caused by overwriting CMAKE\_CXX\_COMPILER [\#2343](https://github.com/nlohmann/json/issues/2343) +- Error: an attribute list cannot appear here JSON\_HEDLEY\_DEPRECATED\_FOR [\#2342](https://github.com/nlohmann/json/issues/2342) +- compiler warning [\#2341](https://github.com/nlohmann/json/issues/2341) +- 3.9.0: tests make build non-reproducible [\#2324](https://github.com/nlohmann/json/issues/2324) +- Initialization different between gcc/clang [\#2311](https://github.com/nlohmann/json/issues/2311) +- Attempt to `get()` a numeric value as a type which cannot represent it should throw [\#2310](https://github.com/nlohmann/json/issues/2310) +- Surprising behaviour with overloaded operators [\#2256](https://github.com/nlohmann/json/issues/2256) +- ADL issue in input\_adapter [\#2248](https://github.com/nlohmann/json/issues/2248) +- Output adapters should be templated. [\#2172](https://github.com/nlohmann/json/issues/2172) +- error when using nlohmann::json, std::function and std::bind [\#2147](https://github.com/nlohmann/json/issues/2147) +- Remove undefined behavior for const operator\[\] [\#2111](https://github.com/nlohmann/json/issues/2111) +- json\({}\) gives null instead of empty object with GCC and -std=c++17 [\#2046](https://github.com/nlohmann/json/issues/2046) +- GDB pretty printing support [\#1952](https://github.com/nlohmann/json/issues/1952) +- Always compile tests with all warnings enabled and error out on warnings [\#1798](https://github.com/nlohmann/json/issues/1798) +- Fixes Cppcheck warnings [\#1759](https://github.com/nlohmann/json/issues/1759) +- How to get position info or parser context with custom from\_json\(\) that may throw exceptions? [\#1508](https://github.com/nlohmann/json/issues/1508) +- Suggestion to improve value\(\) accessors with respect to move semantics [\#1275](https://github.com/nlohmann/json/issues/1275) +- Add Key name to Exception [\#932](https://github.com/nlohmann/json/issues/932) + +- Overwork warning flags [\#2936](https://github.com/nlohmann/json/pull/2936) ([nlohmann](https://github.com/nlohmann)) +- Treat MSVC warnings as errors [\#2930](https://github.com/nlohmann/json/pull/2930) ([nlohmann](https://github.com/nlohmann)) +- All: fix warnings when compiling with -Wswitch-enum [\#2927](https://github.com/nlohmann/json/pull/2927) ([fhuberts](https://github.com/fhuberts)) +- Guard GCC pragmas [\#2925](https://github.com/nlohmann/json/pull/2925) ([nlohmann](https://github.com/nlohmann)) +- Supress -Wfloat-equal on intended float comparisions [\#2911](https://github.com/nlohmann/json/pull/2911) ([Finkman](https://github.com/Finkman)) +- Fix binary subtypes [\#2908](https://github.com/nlohmann/json/pull/2908) ([nlohmann](https://github.com/nlohmann)) +- Fix useless-cast warnings [\#2902](https://github.com/nlohmann/json/pull/2902) ([nlohmann](https://github.com/nlohmann)) +- Add regression test [\#2898](https://github.com/nlohmann/json/pull/2898) ([nlohmann](https://github.com/nlohmann)) +- Refactor Unicode tests [\#2889](https://github.com/nlohmann/json/pull/2889) ([nlohmann](https://github.com/nlohmann)) +- CMake cleanup [\#2885](https://github.com/nlohmann/json/pull/2885) ([nlohmann](https://github.com/nlohmann)) +- Avoid string in case of empty CBOR objects [\#2879](https://github.com/nlohmann/json/pull/2879) ([nlohmann](https://github.com/nlohmann)) +- Suppress C4127 warning in unit-json\_pointer.cpp [\#2875](https://github.com/nlohmann/json/pull/2875) ([nlohmann](https://github.com/nlohmann)) +- Fix truncation warning [\#2874](https://github.com/nlohmann/json/pull/2874) ([nlohmann](https://github.com/nlohmann)) +- Fix memory leak in to\_json [\#2872](https://github.com/nlohmann/json/pull/2872) ([nlohmann](https://github.com/nlohmann)) +- Fix assertion failure in diagnostics [\#2866](https://github.com/nlohmann/json/pull/2866) ([nlohmann](https://github.com/nlohmann)) +- Update documentation [\#2861](https://github.com/nlohmann/json/pull/2861) ([nlohmann](https://github.com/nlohmann)) +- Consistency with `using` in README.md [\#2826](https://github.com/nlohmann/json/pull/2826) ([justanotheranonymoususer](https://github.com/justanotheranonymoususer)) +- Properly constrain the basic\_json conversion operator [\#2825](https://github.com/nlohmann/json/pull/2825) ([ldionne](https://github.com/ldionne)) +- Fix CI [\#2817](https://github.com/nlohmann/json/pull/2817) ([nlohmann](https://github.com/nlohmann)) +- Specified git branch for google benchmark fetch in benchmark test [\#2795](https://github.com/nlohmann/json/pull/2795) ([grafail](https://github.com/grafail)) +- Add C++ standards to macOS matrix [\#2790](https://github.com/nlohmann/json/pull/2790) ([nlohmann](https://github.com/nlohmann)) +- Update URLs to HTTPS [\#2789](https://github.com/nlohmann/json/pull/2789) ([TotalCaesar659](https://github.com/TotalCaesar659)) +- Link to Conan Center package added [\#2771](https://github.com/nlohmann/json/pull/2771) ([offa](https://github.com/offa)) +- Keep consistent formatting [\#2770](https://github.com/nlohmann/json/pull/2770) ([jasmcaus](https://github.com/jasmcaus)) +- Add a cmake option to use SYSTEM in target\_include\_directories [\#2762](https://github.com/nlohmann/json/pull/2762) ([jpl-mac](https://github.com/jpl-mac)) +- replace EOF with std::char\_traits\::eof\(\) [\#2756](https://github.com/nlohmann/json/pull/2756) ([nlohmann](https://github.com/nlohmann)) +- Fix typo in README [\#2754](https://github.com/nlohmann/json/pull/2754) ([mortenfyhn](https://github.com/mortenfyhn)) +- Update documentation [\#2749](https://github.com/nlohmann/json/pull/2749) ([nlohmann](https://github.com/nlohmann)) +- Add documentation for numbers [\#2747](https://github.com/nlohmann/json/pull/2747) ([nlohmann](https://github.com/nlohmann)) +- Use Clang 12 in CI [\#2737](https://github.com/nlohmann/json/pull/2737) ([nlohmann](https://github.com/nlohmann)) +- Fixes \#2730 [\#2731](https://github.com/nlohmann/json/pull/2731) ([theShmoo](https://github.com/theShmoo)) +- Possibility to use without the dependency to file io and streams to use in intel sgx enclaves [\#2729](https://github.com/nlohmann/json/pull/2729) ([theShmoo](https://github.com/theShmoo)) +- Update json.hpp [\#2707](https://github.com/nlohmann/json/pull/2707) ([raduteo](https://github.com/raduteo)) +- pkg-config.pc.in: Don't concatenate paths [\#2690](https://github.com/nlohmann/json/pull/2690) ([doronbehar](https://github.com/doronbehar)) +- add more CI steps [\#2689](https://github.com/nlohmann/json/pull/2689) ([nlohmann](https://github.com/nlohmann)) +- Update doctest from 2.4.4 to 2.4.6 \(fixes \#2686\) [\#2687](https://github.com/nlohmann/json/pull/2687) ([musicinmybrain](https://github.com/musicinmybrain)) +- License fix [\#2683](https://github.com/nlohmann/json/pull/2683) ([nlohmann](https://github.com/nlohmann)) +- Update parse\_exceptions.md - correct `json::exception::parse_error` [\#2679](https://github.com/nlohmann/json/pull/2679) ([frasermarlow](https://github.com/frasermarlow)) +- Remove HEDLEY annotation from exception::what\(\) [\#2673](https://github.com/nlohmann/json/pull/2673) ([remyjette](https://github.com/remyjette)) +- Fix amount of entries in the json object [\#2659](https://github.com/nlohmann/json/pull/2659) ([abbaswasim](https://github.com/abbaswasim)) +- Fix missing 1.78 in example in README.md [\#2625](https://github.com/nlohmann/json/pull/2625) ([wawiesel](https://github.com/wawiesel)) +- Add GDB pretty printer [\#2607](https://github.com/nlohmann/json/pull/2607) ([nlohmann](https://github.com/nlohmann)) +- readme: fix tilde character display [\#2582](https://github.com/nlohmann/json/pull/2582) ([bl-ue](https://github.com/bl-ue)) +- Add support for deserialization of STL containers of non-default constructable types \(fixes \#2574\). [\#2576](https://github.com/nlohmann/json/pull/2576) ([AnthonyVH](https://github.com/AnthonyVH)) +- Better diagnostics [\#2562](https://github.com/nlohmann/json/pull/2562) ([nlohmann](https://github.com/nlohmann)) +- CI targets [\#2561](https://github.com/nlohmann/json/pull/2561) ([nlohmann](https://github.com/nlohmann)) +- Add switch to skip non-reproducible tests. [\#2560](https://github.com/nlohmann/json/pull/2560) ([nlohmann](https://github.com/nlohmann)) +- Fix compilation of input\_adapter\(container\) in edge cases [\#2553](https://github.com/nlohmann/json/pull/2553) ([jasujm](https://github.com/jasujm)) +- Allow parsing from std::byte containers [\#2550](https://github.com/nlohmann/json/pull/2550) ([nlohmann](https://github.com/nlohmann)) +- Travis doesn't run any tests in C++17 mode [\#2540](https://github.com/nlohmann/json/pull/2540) ([karzhenkov](https://github.com/karzhenkov)) +- Doctest is updated to v2.4.3 [\#2538](https://github.com/nlohmann/json/pull/2538) ([YarikTH](https://github.com/YarikTH)) +- Fix warnings [\#2537](https://github.com/nlohmann/json/pull/2537) ([nlohmann](https://github.com/nlohmann)) +- Fix a shadowing warning [\#2536](https://github.com/nlohmann/json/pull/2536) ([nlohmann](https://github.com/nlohmann)) +- Clarify license of is\_complete\_type implementation [\#2534](https://github.com/nlohmann/json/pull/2534) ([nlohmann](https://github.com/nlohmann)) +- Do not unconditionally redefine C++14 constructs [\#2533](https://github.com/nlohmann/json/pull/2533) ([nlohmann](https://github.com/nlohmann)) +- Doctest is updated to v2.4.1 [\#2525](https://github.com/nlohmann/json/pull/2525) ([YarikTH](https://github.com/YarikTH)) +- Add MAIN\_PROJECT check for test and install options [\#2514](https://github.com/nlohmann/json/pull/2514) ([globberwops](https://github.com/globberwops)) +- Ranged insert test section is added in unit-ordered\_json.cpp [\#2512](https://github.com/nlohmann/json/pull/2512) ([YarikTH](https://github.com/YarikTH)) +- Add asserts to suppress C28020 [\#2447](https://github.com/nlohmann/json/pull/2447) ([jbzdarkid](https://github.com/jbzdarkid)) +- Change argument name "subtype" in byte\_container\_with\_subtype [\#2444](https://github.com/nlohmann/json/pull/2444) ([linev](https://github.com/linev)) +- 📝 add CPM.Cmake example [\#2406](https://github.com/nlohmann/json/pull/2406) ([leozz37](https://github.com/leozz37)) +- Fix move constructor of json\_ref [\#2405](https://github.com/nlohmann/json/pull/2405) ([karzhenkov](https://github.com/karzhenkov)) +- Properly select "Release" build for Travis [\#2375](https://github.com/nlohmann/json/pull/2375) ([karzhenkov](https://github.com/karzhenkov)) +- Update Hedley [\#2367](https://github.com/nlohmann/json/pull/2367) ([nlohmann](https://github.com/nlohmann)) +- Fix and extend documentation of discarded values [\#2363](https://github.com/nlohmann/json/pull/2363) ([nlohmann](https://github.com/nlohmann)) +- Fix typos in documentation [\#2354](https://github.com/nlohmann/json/pull/2354) ([rbuch](https://github.com/rbuch)) +- Remove "\#define private public" from tests [\#2352](https://github.com/nlohmann/json/pull/2352) ([nlohmann](https://github.com/nlohmann)) +- Remove -Wimplicit-fallthrough warning [\#2349](https://github.com/nlohmann/json/pull/2349) ([nlohmann](https://github.com/nlohmann)) +- Fix code to work without exceptions [\#2347](https://github.com/nlohmann/json/pull/2347) ([nlohmann](https://github.com/nlohmann)) +- fix cmake script overwriting compiler path [\#2344](https://github.com/nlohmann/json/pull/2344) ([ongjunjie](https://github.com/ongjunjie)) + +## [v3.9.1](https://github.com/nlohmann/json/releases/tag/v3.9.1) (2020-08-06) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.9.0...v3.9.1) + +- Can't parse not formatted JSON. [\#2340](https://github.com/nlohmann/json/issues/2340) +- parse returns desired array contained in array when JSON text begins with square bracket on gcc 7.5.0 [\#2339](https://github.com/nlohmann/json/issues/2339) +- Unexpected deserialization difference between Mac and Linux [\#2338](https://github.com/nlohmann/json/issues/2338) +- Reading ordered\_json from file causes compile error [\#2331](https://github.com/nlohmann/json/issues/2331) +- ignore\_comment=true fails on multiple consecutive lines starting with comments [\#2330](https://github.com/nlohmann/json/issues/2330) +- Update documentation about Homebrew installation and CMake integration - Homebrew [\#2326](https://github.com/nlohmann/json/issues/2326) +- Chinese character initialize error [\#2325](https://github.com/nlohmann/json/issues/2325) +- json.update and vector\does not work with ordered\_json [\#2315](https://github.com/nlohmann/json/issues/2315) +- Ambiguous call to overloaded function [\#2210](https://github.com/nlohmann/json/issues/2210) + +- Fix fallthrough warning [\#2333](https://github.com/nlohmann/json/pull/2333) ([nlohmann](https://github.com/nlohmann)) +- Fix lexer to properly cope with repeated comments [\#2332](https://github.com/nlohmann/json/pull/2332) ([nlohmann](https://github.com/nlohmann)) +- Fix name of Homebrew formula in documentation [\#2327](https://github.com/nlohmann/json/pull/2327) ([nlohmann](https://github.com/nlohmann)) +- fix typo [\#2320](https://github.com/nlohmann/json/pull/2320) ([wx257osn2](https://github.com/wx257osn2)) +- Fix a bug due to missing overloads in ordered\_map container [\#2319](https://github.com/nlohmann/json/pull/2319) ([nlohmann](https://github.com/nlohmann)) +- cmake: install pkg-config file relative to current\_binary\_dir [\#2318](https://github.com/nlohmann/json/pull/2318) ([eli-schwartz](https://github.com/eli-schwartz)) +- Fixed installation of pkg-config file on other than Ubuntu [\#2314](https://github.com/nlohmann/json/pull/2314) ([xvitaly](https://github.com/xvitaly)) + +## [v3.9.0](https://github.com/nlohmann/json/releases/tag/v3.9.0) (2020-07-27) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.8.0...v3.9.0) + +- Unknown Type Name clang error when using NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE [\#2313](https://github.com/nlohmann/json/issues/2313) +- Clang 10.0 / GCC 10.1 warnings on disabled exceptions [\#2304](https://github.com/nlohmann/json/issues/2304) +- Application stalls indefinitely with message byte size 10 [\#2293](https://github.com/nlohmann/json/issues/2293) +- linker error [\#2292](https://github.com/nlohmann/json/issues/2292) +- Add support for high-precision numbers in UBJSON encoding [\#2286](https://github.com/nlohmann/json/issues/2286) +- NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE fails if the length of the argument is 10 [\#2280](https://github.com/nlohmann/json/issues/2280) +- Custom types : MACRO expansion bug [\#2267](https://github.com/nlohmann/json/issues/2267) +- to/from\_json Failing To Convert String [\#2238](https://github.com/nlohmann/json/issues/2238) +- clang 9.0 report warning: unused type alias 'size\_type' \[-Wunused-local-typedef\] [\#2221](https://github.com/nlohmann/json/issues/2221) +- Enormous array created when working with map\ [\#2220](https://github.com/nlohmann/json/issues/2220) +- Can I disable sorting of json values [\#2219](https://github.com/nlohmann/json/issues/2219) +- Getting Qt types to work [\#2217](https://github.com/nlohmann/json/issues/2217) +- Convert to Qt QVariant [\#2216](https://github.com/nlohmann/json/issues/2216) +- How to custom serialize same data type of vector? [\#2215](https://github.com/nlohmann/json/issues/2215) +- json constructor does not support std::optional [\#2214](https://github.com/nlohmann/json/issues/2214) +- Failing to Parse Valid JSON [\#2209](https://github.com/nlohmann/json/issues/2209) +- \(De-\)Serialization of std::variant with namespaces [\#2208](https://github.com/nlohmann/json/issues/2208) +- Addint support for complex type [\#2207](https://github.com/nlohmann/json/issues/2207) +- array\_index possible out of range [\#2205](https://github.com/nlohmann/json/issues/2205) +- Object deserialized as array [\#2204](https://github.com/nlohmann/json/issues/2204) +- Sending to a function a reference to a sub-branch [\#2200](https://github.com/nlohmann/json/issues/2200) +- How to Serialize derived class to JSON object? [\#2199](https://github.com/nlohmann/json/issues/2199) +- JSON incorrectly serialized [\#2198](https://github.com/nlohmann/json/issues/2198) +- Exception Unhandled out\_of\_range error [\#2197](https://github.com/nlohmann/json/issues/2197) +- msgpack serialisation : float is treated as 64bit float, not 32bit float. [\#2196](https://github.com/nlohmann/json/issues/2196) +- Is it possible to use compile-time type guarantees for JSON structures? [\#2195](https://github.com/nlohmann/json/issues/2195) +- Question : performance against python dict [\#2194](https://github.com/nlohmann/json/issues/2194) +- vs2017 compile error [\#2192](https://github.com/nlohmann/json/issues/2192) +- Check if a key exists [\#2191](https://github.com/nlohmann/json/issues/2191) +- Failed to run tests due to missing test data on builders without Internet access [\#2190](https://github.com/nlohmann/json/issues/2190) +- 3.8.0: unit-cbor.cpp test failures [\#2189](https://github.com/nlohmann/json/issues/2189) +- 'nlohmann/json.hpp' file not found [\#2188](https://github.com/nlohmann/json/issues/2188) +- How to send json data over the wire? [\#2185](https://github.com/nlohmann/json/issues/2185) +- Ubuntu 16 not supporting nlohmann/json? [\#2184](https://github.com/nlohmann/json/issues/2184) +- .get\ causing emdash errors [\#2180](https://github.com/nlohmann/json/issues/2180) +- Object properties should not be re-sorted alphabetically [\#2179](https://github.com/nlohmann/json/issues/2179) +- Custom type registration : instrusive API [\#2175](https://github.com/nlohmann/json/issues/2175) +- Many version of the function "void to\_json\(json& j, const MyStruct& struct\)" [\#2171](https://github.com/nlohmann/json/issues/2171) +- How should strings be escaped? [\#2155](https://github.com/nlohmann/json/issues/2155) +- Adding a value to an existing json puts it at the beginning instead of the end [\#2149](https://github.com/nlohmann/json/issues/2149) +- The header file is big, can we use what we need. [\#2134](https://github.com/nlohmann/json/issues/2134) +- Changing the default format for unordered\_map \(or other set\) [\#2132](https://github.com/nlohmann/json/issues/2132) +- Getting size of deserialized bson document [\#2131](https://github.com/nlohmann/json/issues/2131) +- implicit conversion failure [\#2128](https://github.com/nlohmann/json/issues/2128) +- Error thrown when parsing in a subclass [\#2124](https://github.com/nlohmann/json/issues/2124) +- explicit conversion to string not considered for std::map keys in GCC8 [\#2096](https://github.com/nlohmann/json/issues/2096) +- Add support for JSONC [\#2061](https://github.com/nlohmann/json/issues/2061) +- Library provides template arg for string\_type but assumes std::string in some places [\#2059](https://github.com/nlohmann/json/issues/2059) +- incremental parsing with sax\_parser [\#2030](https://github.com/nlohmann/json/issues/2030) +- Question about flatten and unflatten [\#1989](https://github.com/nlohmann/json/issues/1989) +- CBOR parser doesn't skip tags [\#1968](https://github.com/nlohmann/json/issues/1968) +- Compilation failure using Clang on Windows [\#1898](https://github.com/nlohmann/json/issues/1898) +- Fail to build when including json.hpp as a system include [\#1818](https://github.com/nlohmann/json/issues/1818) +- Parsing string into json doesn't preserve the order correctly. [\#1817](https://github.com/nlohmann/json/issues/1817) +- \[C++17\] Allow std::optional to convert to nlohmann::json [\#1749](https://github.com/nlohmann/json/issues/1749) +- How can I save json object in file in order? [\#1717](https://github.com/nlohmann/json/issues/1717) +- Support for Comments [\#1513](https://github.com/nlohmann/json/issues/1513) +- clang compiler: error : unknown type name 'not' [\#1119](https://github.com/nlohmann/json/issues/1119) +- dump\(\) without alphabetical order [\#1106](https://github.com/nlohmann/json/issues/1106) +- operator T\(\) considered harmful [\#958](https://github.com/nlohmann/json/issues/958) +- Order of the elements in JSON object [\#952](https://github.com/nlohmann/json/issues/952) +- How to prevent alphabetical sorting of data? [\#727](https://github.com/nlohmann/json/issues/727) +- Why is an object ordering values by Alphabetical Order? [\#660](https://github.com/nlohmann/json/issues/660) +- Feature request: Comments [\#597](https://github.com/nlohmann/json/issues/597) +- Head Elements Sorting [\#543](https://github.com/nlohmann/json/issues/543) +- Automatic ordered JSON [\#424](https://github.com/nlohmann/json/issues/424) +- Support for comments. [\#376](https://github.com/nlohmann/json/issues/376) +- Optional comment support. [\#363](https://github.com/nlohmann/json/issues/363) +- Strip comments / Minify [\#294](https://github.com/nlohmann/json/issues/294) +- maintaining order of keys during iteration [\#106](https://github.com/nlohmann/json/issues/106) + +- Update documentation [\#2312](https://github.com/nlohmann/json/pull/2312) ([nlohmann](https://github.com/nlohmann)) +- Fix bug in CBOR tag handling [\#2308](https://github.com/nlohmann/json/pull/2308) ([nlohmann](https://github.com/nlohmann)) +- added inline to NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE macro [\#2306](https://github.com/nlohmann/json/pull/2306) ([jwittbrodt](https://github.com/jwittbrodt)) +- fixes unused variable 'ex' for \#2304 [\#2305](https://github.com/nlohmann/json/pull/2305) ([AODQ](https://github.com/AODQ)) +- Cleanup [\#2303](https://github.com/nlohmann/json/pull/2303) ([nlohmann](https://github.com/nlohmann)) +- Add test with multiple translation units [\#2301](https://github.com/nlohmann/json/pull/2301) ([nlohmann](https://github.com/nlohmann)) +- Merge GitHub actions [\#2300](https://github.com/nlohmann/json/pull/2300) ([nlohmann](https://github.com/nlohmann)) +- Fix unused parameter [\#2299](https://github.com/nlohmann/json/pull/2299) ([nlohmann](https://github.com/nlohmann)) +- Add support for high-precision numbers in UBJSON encoding [\#2297](https://github.com/nlohmann/json/pull/2297) ([nlohmann](https://github.com/nlohmann)) +- fix eof for get\_binary and get\_string [\#2294](https://github.com/nlohmann/json/pull/2294) ([jprochazk](https://github.com/jprochazk)) +- Serialisation macros: increase upper bound on number of member variables [\#2287](https://github.com/nlohmann/json/pull/2287) ([pfeatherstone](https://github.com/pfeatherstone)) +- add inline specifier for detail::combine [\#2285](https://github.com/nlohmann/json/pull/2285) ([T0b1-iOS](https://github.com/T0b1-iOS)) +- Add static assertion for missing binary function in SAX interface [\#2282](https://github.com/nlohmann/json/pull/2282) ([nlohmann](https://github.com/nlohmann)) +- Add test for target\_include\_directories [\#2279](https://github.com/nlohmann/json/pull/2279) ([nlohmann](https://github.com/nlohmann)) +- Clean up maintainer Makefiles and fix some linter warnings [\#2274](https://github.com/nlohmann/json/pull/2274) ([nlohmann](https://github.com/nlohmann)) +- Add option to ignore CBOR tags [\#2273](https://github.com/nlohmann/json/pull/2273) ([nlohmann](https://github.com/nlohmann)) +- Hash function without allocation [\#2269](https://github.com/nlohmann/json/pull/2269) ([nlohmann](https://github.com/nlohmann)) +- Add ClangCL for MSVC [\#2268](https://github.com/nlohmann/json/pull/2268) ([t-b](https://github.com/t-b)) +- Makefile: Always use SED variable [\#2264](https://github.com/nlohmann/json/pull/2264) ([t-b](https://github.com/t-b)) +- Add Xcode 12 CI [\#2262](https://github.com/nlohmann/json/pull/2262) ([nlohmann](https://github.com/nlohmann)) +- Make library work with Clang on Windows [\#2259](https://github.com/nlohmann/json/pull/2259) ([nlohmann](https://github.com/nlohmann)) +- Add ordered\_json specialization with ordered object keys [\#2258](https://github.com/nlohmann/json/pull/2258) ([nlohmann](https://github.com/nlohmann)) +- Add pkg-config file [\#2253](https://github.com/nlohmann/json/pull/2253) ([ericonr](https://github.com/ericonr)) +- Fix regression from \#2181 [\#2251](https://github.com/nlohmann/json/pull/2251) ([nlohmann](https://github.com/nlohmann)) +- Tag binary values in cbor if set [\#2244](https://github.com/nlohmann/json/pull/2244) ([matthewbauer](https://github.com/matthewbauer)) +- Make assert configurable via JSON\_ASSERT [\#2242](https://github.com/nlohmann/json/pull/2242) ([nlohmann](https://github.com/nlohmann)) +- Add specialization of get\_to [\#2233](https://github.com/nlohmann/json/pull/2233) ([nlohmann](https://github.com/nlohmann)) +- Refine documentation of error\_handler parameter [\#2232](https://github.com/nlohmann/json/pull/2232) ([nlohmann](https://github.com/nlohmann)) +- Simplify conversion from/to custom types [\#2225](https://github.com/nlohmann/json/pull/2225) ([nlohmann](https://github.com/nlohmann)) +- Remove unused typedefs [\#2224](https://github.com/nlohmann/json/pull/2224) ([nlohmann](https://github.com/nlohmann)) +- Enable CMake policy CMP0077 [\#2222](https://github.com/nlohmann/json/pull/2222) ([alexreinking](https://github.com/alexreinking)) +- Add option to ignore comments in parse/accept functions [\#2212](https://github.com/nlohmann/json/pull/2212) ([nlohmann](https://github.com/nlohmann)) +- Fix Clang-Tidy warnings [\#2211](https://github.com/nlohmann/json/pull/2211) ([nlohmann](https://github.com/nlohmann)) +- Simple ordered\_json that works on all supported compilers [\#2206](https://github.com/nlohmann/json/pull/2206) ([gatopeich](https://github.com/gatopeich)) +- Use unsigned indizies for array index in json pointer [\#2203](https://github.com/nlohmann/json/pull/2203) ([t-b](https://github.com/t-b)) +- Add option to not rely on Internet connectivity during test stage [\#2202](https://github.com/nlohmann/json/pull/2202) ([nlohmann](https://github.com/nlohmann)) +- Serialize floating-point numbers with 32 bit when possible \(MessagePack\) [\#2201](https://github.com/nlohmann/json/pull/2201) ([nlohmann](https://github.com/nlohmann)) +- Fix consistency in function `int_to_string()` [\#2193](https://github.com/nlohmann/json/pull/2193) ([dota17](https://github.com/dota17)) +- Fix issue\#1275 [\#2181](https://github.com/nlohmann/json/pull/2181) ([dota17](https://github.com/dota17)) +- C++20 support by removing swap specialization [\#2176](https://github.com/nlohmann/json/pull/2176) ([gracicot](https://github.com/gracicot)) +- Feat/explicit conversion operator [\#1559](https://github.com/nlohmann/json/pull/1559) ([theodelrieu](https://github.com/theodelrieu)) + +## [v3.8.0](https://github.com/nlohmann/json/releases/tag/v3.8.0) (2020-06-14) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.7.3...v3.8.0) + +- sorry delete this issue, i'm stupid [\#2187](https://github.com/nlohmann/json/issues/2187) +- Append to a std::nlohmann::json type [\#2186](https://github.com/nlohmann/json/issues/2186) +- Some troubles to compile the last revision [\#2177](https://github.com/nlohmann/json/issues/2177) +- ​\#​ Top level CMakeLists.txt​ +​project​\(FOO\) +... +​option​\(FOO\_USE\_EXTERNAL\_JSON ​"Use an external JSON library"​ ​OFF​\) +... +​add\_subdirectory​\(thirdparty\) +... +​add\_library​\(foo ...\) +... +​\#​ Note that the namespaced target will always be available regardless of the​ +​\#​ import method​ +​target\_link\_libraries​\(foo ​PRIVATE​ nlohmann\_json::nlohmann\_json\) [\#2170](https://github.com/nlohmann/json/issues/2170) +- https://www.github.com/nlohmann/json/tree/develop/include%2Fnlohmann%2Fjson\_fwd.hpp [\#2169](https://github.com/nlohmann/json/issues/2169) +- templated from\_json of non primitive types causes gcc error [\#2168](https://github.com/nlohmann/json/issues/2168) +- few warnings/errors in copy assignment [\#2167](https://github.com/nlohmann/json/issues/2167) +- Different output when upgrading from clang 9 to clang 10 [\#2166](https://github.com/nlohmann/json/issues/2166) +- Cannot build with VS 2019 / C++17 [\#2163](https://github.com/nlohmann/json/issues/2163) +- Q: When I received an illegal string,How the program knows? [\#2162](https://github.com/nlohmann/json/issues/2162) +- Problem while reading a json file [\#2161](https://github.com/nlohmann/json/issues/2161) +- converting std::chrono::system\_clock::time\_point to json. [\#2159](https://github.com/nlohmann/json/issues/2159) +- how to parse vector\ format [\#2157](https://github.com/nlohmann/json/issues/2157) +- nlohmann::json and =nullptr [\#2156](https://github.com/nlohmann/json/issues/2156) +- test-cbor fails [\#2154](https://github.com/nlohmann/json/issues/2154) +- Accessing array inside array syntax? [\#2151](https://github.com/nlohmann/json/issues/2151) +- Best way to catch errors when querying json [\#2150](https://github.com/nlohmann/json/issues/2150) +- JSON Data Mapping Key-Value from other Key-Value [\#2148](https://github.com/nlohmann/json/issues/2148) +- Conflicts with std \ compiling with GCC 10 [\#2146](https://github.com/nlohmann/json/issues/2146) +- Incorrect CMake FetchContent example [\#2142](https://github.com/nlohmann/json/issues/2142) +- Help for a Beginner? [\#2141](https://github.com/nlohmann/json/issues/2141) +- Read Json from File [\#2139](https://github.com/nlohmann/json/issues/2139) +- How to feed a predefined integer value into json string [\#2138](https://github.com/nlohmann/json/issues/2138) +- getting json array inside json object [\#2135](https://github.com/nlohmann/json/issues/2135) +- Add .contains example to doc [\#2133](https://github.com/nlohmann/json/issues/2133) +- Is it safe to return string.c\_str\(\) received from get\(\)? [\#2130](https://github.com/nlohmann/json/issues/2130) +- GCC 10: Compilation error when including any before including json header in C++17 mode [\#2129](https://github.com/nlohmann/json/issues/2129) +- Intersection of two json files [\#2127](https://github.com/nlohmann/json/issues/2127) +- App crashes when dump method called for non ascii chars. [\#2126](https://github.com/nlohmann/json/issues/2126) +- iterator based erase method [\#2122](https://github.com/nlohmann/json/issues/2122) +- quick and convenient api to get/set nested json values [\#2120](https://github.com/nlohmann/json/issues/2120) +- assigning nullptr to std::string [\#2118](https://github.com/nlohmann/json/issues/2118) +- usless\_cast warnings with gcc 9.3 and 10.1 \(C++17\) [\#2114](https://github.com/nlohmann/json/issues/2114) +- clang 10 warning [\#2113](https://github.com/nlohmann/json/issues/2113) +- Possible incorrect \_MSC\_VER reference [\#2112](https://github.com/nlohmann/json/issues/2112) +- warning under gcc 10.1 [\#2110](https://github.com/nlohmann/json/issues/2110) +- Wdeprecated-declarations from GCC v10.1.0 [\#2109](https://github.com/nlohmann/json/issues/2109) +- Global std::vector from json [\#2108](https://github.com/nlohmann/json/issues/2108) +- heap-buffer-overflow when using nlohmann/json, ASAN, and gtest [\#2107](https://github.com/nlohmann/json/issues/2107) +- exception 0x770DC5AF when i read an special char in json file [\#2106](https://github.com/nlohmann/json/issues/2106) +- json::parse\(\) fails to parse a dump\(2,' '\) output, yet does successfully parse dump\(\) [\#2105](https://github.com/nlohmann/json/issues/2105) +- run test-udt error in MSVC 19.16.27034.0 [\#2103](https://github.com/nlohmann/json/issues/2103) +- Unable to dump to stringstream [\#2102](https://github.com/nlohmann/json/issues/2102) +- Can't ad an object in another objet [\#2101](https://github.com/nlohmann/json/issues/2101) +- Implicit conversion causes "cannot use operator\[\] with a string argument with string" [\#2098](https://github.com/nlohmann/json/issues/2098) +- C++20: char8\_t [\#2097](https://github.com/nlohmann/json/issues/2097) +- Compilation issues when included in project [\#2094](https://github.com/nlohmann/json/issues/2094) +- string value with null character causes infinite loop [\#2093](https://github.com/nlohmann/json/issues/2093) +- corrupted size vs. prev\_size \(aborted\) [\#2092](https://github.com/nlohmann/json/issues/2092) +- Get string field content without return std::string copy [\#2091](https://github.com/nlohmann/json/issues/2091) +- JSON Comments \(JSON 5\) [\#2090](https://github.com/nlohmann/json/issues/2090) +- Remove \#include \ [\#2089](https://github.com/nlohmann/json/issues/2089) +- JSON library as a git submodule [\#2088](https://github.com/nlohmann/json/issues/2088) +- Apple Clang 11.0.3 on MacOS Catalina 10.15.4 not compiling [\#2087](https://github.com/nlohmann/json/issues/2087) +- Value function return empty object even if it exist [\#2086](https://github.com/nlohmann/json/issues/2086) +- Cannot debug but Run works [\#2085](https://github.com/nlohmann/json/issues/2085) +- Question about serialization. [\#2084](https://github.com/nlohmann/json/issues/2084) +- How to include in an external project [\#2083](https://github.com/nlohmann/json/issues/2083) +- Missing tests for binary values [\#2082](https://github.com/nlohmann/json/issues/2082) +- How to override default string serialization? [\#2079](https://github.com/nlohmann/json/issues/2079) +- Can't have a json type as a property in an arbitrary type [\#2078](https://github.com/nlohmann/json/issues/2078) +- New release? [\#2075](https://github.com/nlohmann/json/issues/2075) +- CMake FetchContent \> Updating the documentation? [\#2073](https://github.com/nlohmann/json/issues/2073) +- How to convert STL Vector \(of user defined type\) to Json [\#2072](https://github.com/nlohmann/json/issues/2072) +- how to make an array of objects [\#2070](https://github.com/nlohmann/json/issues/2070) +- ‘\_\_int64’ was not declared [\#2068](https://github.com/nlohmann/json/issues/2068) +- \[json.exception.type\_error.317\] cannot serialize binary data to text JSON [\#2067](https://github.com/nlohmann/json/issues/2067) +- Unexpected end of input; expected '\[', '{', or a literal [\#2066](https://github.com/nlohmann/json/issues/2066) +- Json structure can be nested? [\#2065](https://github.com/nlohmann/json/issues/2065) +- Bug: returning reference to local temporary object [\#2064](https://github.com/nlohmann/json/issues/2064) +- Allow to use non strict parsing [\#2063](https://github.com/nlohmann/json/issues/2063) +- Crashing on json::at [\#2062](https://github.com/nlohmann/json/issues/2062) +- How to convert a const std::vector\ message to a json, to be able to parse it and extract information from it? Can you point to any examples? [\#2058](https://github.com/nlohmann/json/issues/2058) +- Nice library [\#2057](https://github.com/nlohmann/json/issues/2057) +- json.hpp:15372:22: error: expected unqualified-id if \(not std::isfinite\(x\)\): Started getting this bug after updating my XCode [\#2056](https://github.com/nlohmann/json/issues/2056) +- Confused as how I can extract the values from the JSON object. [\#2055](https://github.com/nlohmann/json/issues/2055) +- Warnings with GCC 10 [\#2052](https://github.com/nlohmann/json/issues/2052) +- Warnings with Clang 10 [\#2049](https://github.com/nlohmann/json/issues/2049) +- Update doctest [\#2048](https://github.com/nlohmann/json/issues/2048) +- Unclear error message: "cannot use operator\[\] with a string argument with array" [\#2047](https://github.com/nlohmann/json/issues/2047) +- Serializing std::variant\\> [\#2045](https://github.com/nlohmann/json/issues/2045) +- Crash when parse big jsonfile [\#2042](https://github.com/nlohmann/json/issues/2042) +- How to check if a key exists without silently generating null objects on the path [\#2041](https://github.com/nlohmann/json/issues/2041) +- Crash when traversing over items\(\) of temporary json objects [\#2040](https://github.com/nlohmann/json/issues/2040) +- How to parse multiple line value ? [\#2039](https://github.com/nlohmann/json/issues/2039) +- SAX API uses unsigned std::size\_t but -1 if element size is not known; [\#2037](https://github.com/nlohmann/json/issues/2037) +- How to parse big decimal data [\#2036](https://github.com/nlohmann/json/issues/2036) +- how use template \ struct adl\_serializer [\#2035](https://github.com/nlohmann/json/issues/2035) +- auto iterator returned by find to handle value depending if is string or numeric. [\#2032](https://github.com/nlohmann/json/issues/2032) +- pass find returned iterator to numeric variable. [\#2031](https://github.com/nlohmann/json/issues/2031) +- Parse error on valid json file [\#2029](https://github.com/nlohmann/json/issues/2029) +- Is here any elegant way to combine serialization and deserialization code? [\#2028](https://github.com/nlohmann/json/issues/2028) +- Notes about dump function [\#2027](https://github.com/nlohmann/json/issues/2027) +- Different JSON printouts for empty dictionary on Linux and Mac. [\#2026](https://github.com/nlohmann/json/issues/2026) +- easier way to get exception reason out of json\_sax\_dom\_callback\_parser without exceptions [\#2024](https://github.com/nlohmann/json/issues/2024) +- Using fifo\_map with base class and derived class [\#2023](https://github.com/nlohmann/json/issues/2023) +- Error reading JSON File [\#2022](https://github.com/nlohmann/json/issues/2022) +- Parse causing crash on android. Cannot catch. [\#2021](https://github.com/nlohmann/json/issues/2021) +- Extra backslashes in nested json [\#2020](https://github.com/nlohmann/json/issues/2020) +- How to create patch for merge\_patch input ? [\#2018](https://github.com/nlohmann/json/issues/2018) +- CppUTest/include/CppUTestExt/MockSupport.h:40: error: default argument for ‘MockFailureReporter\* failureReporterForThisCall’ has type ‘void\*’ [\#2017](https://github.com/nlohmann/json/issues/2017) +- including another file [\#2016](https://github.com/nlohmann/json/issues/2016) +- GNU PREREQ Error with gcc 9.3.0 [\#2015](https://github.com/nlohmann/json/issues/2015) +- Parse error: json.exception.parse\_error.101 - invalid string: ill-formed UTF-8 byte [\#2014](https://github.com/nlohmann/json/issues/2014) +- Add more flexibility to basic\_json's ObjectType \(and ArrayType\) [\#2013](https://github.com/nlohmann/json/issues/2013) +- afl persistent mode [\#2012](https://github.com/nlohmann/json/issues/2012) +- Compiler Errors under VS2019 in Appveyor CI [\#2009](https://github.com/nlohmann/json/issues/2009) +- Another compilation failure with Visual Studio [\#2007](https://github.com/nlohmann/json/issues/2007) +- Implicit cast to std::string broken again with VS2019 16.5.0 [\#2006](https://github.com/nlohmann/json/issues/2006) +- error: no matching member function for call to 'AddRaw' [\#2005](https://github.com/nlohmann/json/issues/2005) +- When I re-create an object again after the network request, an error is reported [\#2003](https://github.com/nlohmann/json/issues/2003) +- How to merge \(and not replace\) different Json::Value objects in jsoncpp [\#2001](https://github.com/nlohmann/json/issues/2001) +- scalar transforms to list [\#2000](https://github.com/nlohmann/json/issues/2000) +- Dump JSON containing multibyte characters [\#1999](https://github.com/nlohmann/json/issues/1999) +- Build error when modify value [\#1998](https://github.com/nlohmann/json/issues/1998) +- How do i include a vector of pointers in my json? [\#1997](https://github.com/nlohmann/json/issues/1997) +- Compiler error wrt incomplete types changed in gcc8.3.0-26 [\#1996](https://github.com/nlohmann/json/issues/1996) +- NaN-like comparison behavior of discarded is inconvenient [\#1988](https://github.com/nlohmann/json/issues/1988) +- Maintaining JSON package in my CMake [\#1987](https://github.com/nlohmann/json/issues/1987) +- reading int number and string number [\#1986](https://github.com/nlohmann/json/issues/1986) +- Build error: keyword is hidden by macro definition! [\#1985](https://github.com/nlohmann/json/issues/1985) +- JSON patch diff for op=add formation is not as per standard \(RFC 6902\) [\#1983](https://github.com/nlohmann/json/issues/1983) +- json\_pointer.contains\(\) exception is incorrectly raised [\#1982](https://github.com/nlohmann/json/issues/1982) +- Error with non existing key [\#1981](https://github.com/nlohmann/json/issues/1981) +- Closed [\#1978](https://github.com/nlohmann/json/issues/1978) +- Where is the library built and what is the name? [\#1977](https://github.com/nlohmann/json/issues/1977) +- The cmake\_import example does not build [\#1976](https://github.com/nlohmann/json/issues/1976) +- Dumping core when reading invalid file [\#1975](https://github.com/nlohmann/json/issues/1975) +- Abort in dump\(\) method [\#1973](https://github.com/nlohmann/json/issues/1973) +- Unclear docs regarding parser\_callback\_t callbacks [\#1972](https://github.com/nlohmann/json/issues/1972) +- Possible memory leak on push\_back [\#1971](https://github.com/nlohmann/json/issues/1971) +- Is it possible to get a safe mutable reference/pointer to internal variant used in nlohmann json? [\#1970](https://github.com/nlohmann/json/issues/1970) +- Getting a flatten json to map\ [\#1957](https://github.com/nlohmann/json/issues/1957) +- forced type conversion or lexical cast without exception. [\#1955](https://github.com/nlohmann/json/issues/1955) +- Add json\_view type support to avoid excessive copying [\#1954](https://github.com/nlohmann/json/issues/1954) +- Adding "examples" section for real-life usages [\#1953](https://github.com/nlohmann/json/issues/1953) +- Add nlohmann::json::key\_type [\#1951](https://github.com/nlohmann/json/issues/1951) +- cannot use operator\[\] with a string argument with string [\#1949](https://github.com/nlohmann/json/issues/1949) +- std::ifstream \>\> json error [\#1948](https://github.com/nlohmann/json/issues/1948) +- Cannot update json data in an iterator? [\#1947](https://github.com/nlohmann/json/issues/1947) +- How can i build this library in VS 2017? [\#1943](https://github.com/nlohmann/json/issues/1943) +- json\_pointer.contains\(\) exceptions when path not found [\#1942](https://github.com/nlohmann/json/issues/1942) +- Nested objects serialize/deserialize [\#1941](https://github.com/nlohmann/json/issues/1941) +- Compile warning on architectures that are not x86 [\#1939](https://github.com/nlohmann/json/issues/1939) +- Version of nlohmann-json-dev in debian packages [\#1938](https://github.com/nlohmann/json/issues/1938) +- Create a json object for every cycle [\#1937](https://github.com/nlohmann/json/issues/1937) +- How to get the object name? [\#1936](https://github.com/nlohmann/json/issues/1936) +- Reserve and resize function for basic json [\#1935](https://github.com/nlohmann/json/issues/1935) +- How to use json parse in tsl::ordread\_map? [\#1934](https://github.com/nlohmann/json/issues/1934) +- C++14 support is not enabled with msvc2015 [\#1932](https://github.com/nlohmann/json/issues/1932) +- Need help with to\_json for derived class, keep getting "cannot use operator" [\#1931](https://github.com/nlohmann/json/issues/1931) +- How to handle std::vector\ [\#1930](https://github.com/nlohmann/json/issues/1930) +- Heap corruption issue [\#1929](https://github.com/nlohmann/json/issues/1929) +- Add `std::wistream` support. [\#1928](https://github.com/nlohmann/json/issues/1928) +- This i can write and read any file thanks [\#1927](https://github.com/nlohmann/json/issues/1927) +- How can I get this simple example working? [\#1926](https://github.com/nlohmann/json/issues/1926) +- emplace\_back does not seems to work with the int 0 [\#1925](https://github.com/nlohmann/json/issues/1925) +- Why nlohmann does not release memory [\#1924](https://github.com/nlohmann/json/issues/1924) +- Is it possible to have template `json::parse` with `noexcept` specifier? [\#1922](https://github.com/nlohmann/json/issues/1922) +- JSON to wstring? [\#1921](https://github.com/nlohmann/json/issues/1921) +- GCC 10 tests build failure [\#1920](https://github.com/nlohmann/json/issues/1920) +- Size of binary json representations [\#1919](https://github.com/nlohmann/json/issues/1919) +- Accessing strings \(for example in keys or values\) without having the lib create a copy of it. [\#1916](https://github.com/nlohmann/json/issues/1916) +- operator== documentation should show how to apply custom comparison function [\#1915](https://github.com/nlohmann/json/issues/1915) +- char8\_t and std::u8string support [\#1914](https://github.com/nlohmann/json/issues/1914) +- std::is\_pod is deprecated in C++20 [\#1913](https://github.com/nlohmann/json/issues/1913) +- Incomplete types reported by \(experimental\) GCC10 [\#1912](https://github.com/nlohmann/json/issues/1912) +- Compile warnings on MSVC 14.2 [\#1911](https://github.com/nlohmann/json/issues/1911) +- How to parse json file with type composition of std::optional and std::variant [\#1910](https://github.com/nlohmann/json/issues/1910) +- why root\_schema be implemented as unique\_ptr in json-validator.cpp，could I use it as shared\_ptr? [\#1908](https://github.com/nlohmann/json/issues/1908) +- compile error in gcc-6.3.0 [\#1906](https://github.com/nlohmann/json/issues/1906) +- Scalar constexpr is odr-used when used as json initializer [\#1905](https://github.com/nlohmann/json/issues/1905) +- install Slack app [\#1904](https://github.com/nlohmann/json/issues/1904) +- typo in a comment [\#1903](https://github.com/nlohmann/json/issues/1903) +- Watch JSON variables in Debug [\#1902](https://github.com/nlohmann/json/issues/1902) +- does Json sdk cares about dfc dfd utf8 issue? [\#1901](https://github.com/nlohmann/json/issues/1901) +- Allow multiple line string value in JSON [\#1897](https://github.com/nlohmann/json/issues/1897) +- Writing map to json file [\#1896](https://github.com/nlohmann/json/issues/1896) +- Small documentation mistake [\#1895](https://github.com/nlohmann/json/issues/1895) +- why static function `parse` cann't find in visual studio 2019 [\#1894](https://github.com/nlohmann/json/issues/1894) +- Best way to handle json files with missing key value pairs. [\#1893](https://github.com/nlohmann/json/issues/1893) +- accessing json object as multimap [\#1892](https://github.com/nlohmann/json/issues/1892) +- What is the best way to parse vec3s into glm::vec3 [\#1891](https://github.com/nlohmann/json/issues/1891) +- Get array of items without using vector [\#1890](https://github.com/nlohmann/json/issues/1890) +- Build errors \(clang 11.0.0\) on macOS 10.15.2 [\#1889](https://github.com/nlohmann/json/issues/1889) +- Multiple arrays to vectors help [\#1888](https://github.com/nlohmann/json/issues/1888) +- json::parse\(begin, end\) parse error on first character using uchar\* [\#1887](https://github.com/nlohmann/json/issues/1887) +- issue in free\(\) [\#1886](https://github.com/nlohmann/json/issues/1886) +- is\_number\_unsigned\(\) returns false for positive integers \(int or 0 or 1 literals\) [\#1885](https://github.com/nlohmann/json/issues/1885) +- MSVC build failure with /Zc:\_\_cplusplus and C++17 [\#1883](https://github.com/nlohmann/json/issues/1883) +- RFC 6901 op:replace & arrays [\#1882](https://github.com/nlohmann/json/issues/1882) +- Problem with serialization of my custom template doubly-linked list [\#1881](https://github.com/nlohmann/json/issues/1881) +- is\_array\(\) is True, but raise 'cannot use operator\[\] for object iterators' [\#1880](https://github.com/nlohmann/json/issues/1880) +- Serialize dynamic array [\#1879](https://github.com/nlohmann/json/issues/1879) +- Serialization of struct object. [\#1877](https://github.com/nlohmann/json/issues/1877) +- warning:c4503 [\#1875](https://github.com/nlohmann/json/issues/1875) +- Why are flattened empty objects/arrays not representable? [\#1874](https://github.com/nlohmann/json/issues/1874) +- Container Overflow \(ASAN\) when using operator \>\> on an ifs [\#1873](https://github.com/nlohmann/json/issues/1873) +- Sub-array to vector or map object? [\#1870](https://github.com/nlohmann/json/issues/1870) +- WIP: QT \(cute\) type supports [\#1869](https://github.com/nlohmann/json/issues/1869) +- Compiler flags to disable features and shrink code size [\#1868](https://github.com/nlohmann/json/issues/1868) +- null strings [\#1867](https://github.com/nlohmann/json/issues/1867) +- Struct with array of struct and \_\_attribute\_\_\(\(packed\)\) [\#1866](https://github.com/nlohmann/json/issues/1866) +- Best way to extract numbers in the string? [\#1865](https://github.com/nlohmann/json/issues/1865) +- Displaying \\?\Volume{guid} from string to json giving error [\#1864](https://github.com/nlohmann/json/issues/1864) +- not working when compiling as x86 [\#1863](https://github.com/nlohmann/json/issues/1863) +- Skipping evaluation of log line expressions with a macro, is it possible? [\#1862](https://github.com/nlohmann/json/issues/1862) +- Suppress warnings [\#1861](https://github.com/nlohmann/json/issues/1861) +- conflit with g++ compile option -mwindows [\#1860](https://github.com/nlohmann/json/issues/1860) +- How to serialize nested classes to semi-flat JSON object? [\#1859](https://github.com/nlohmann/json/issues/1859) +- Memory Requirement for large json file [\#1858](https://github.com/nlohmann/json/issues/1858) +- Query a binary format \(BSON, CBOR, MessagePack, UBJSON\) [\#1856](https://github.com/nlohmann/json/issues/1856) +- Documentation on operator\[\] behavior with missing keys [\#1855](https://github.com/nlohmann/json/issues/1855) +- Problem in converting string into JSON; Can't parse successfully. [\#1854](https://github.com/nlohmann/json/issues/1854) +- json.at\_or\_default\(key, defaultval\) [\#1852](https://github.com/nlohmann/json/issues/1852) +- please improve the enum conversion documentation \(my example gist provided\) [\#1851](https://github.com/nlohmann/json/issues/1851) +- Default value returned on ValueType nlohmann::basic\_json::value \(const typename object\_t::key\_type& key, const ValueType& default\_value\) [\#1850](https://github.com/nlohmann/json/issues/1850) +- Accounting for arbitrary precision numerical literals [\#1849](https://github.com/nlohmann/json/issues/1849) +- While trying to make a simple array, I get a nested array instead [\#1848](https://github.com/nlohmann/json/issues/1848) +- How to reuse the parser and serializer intermediate storage? [\#1847](https://github.com/nlohmann/json/issues/1847) +- Too much content in json.hpp leads to slow compilation [\#1845](https://github.com/nlohmann/json/issues/1845) +- Cannot read some data in json file [\#1843](https://github.com/nlohmann/json/issues/1843) +- Precompiled JSON library? [\#1842](https://github.com/nlohmann/json/issues/1842) +- Please change assert into throw\(maybe\) in line 17946 [\#1841](https://github.com/nlohmann/json/issues/1841) +- JSON for modern C++ ECCN information [\#1840](https://github.com/nlohmann/json/issues/1840) +- CI: reduce build time for Travis valgrind [\#1836](https://github.com/nlohmann/json/issues/1836) +- How do I traverse a json object and add new elements into the hierarchy [\#1834](https://github.com/nlohmann/json/issues/1834) +- Invalid UTF-8 byte at index 1: 0x65 [\#1831](https://github.com/nlohmann/json/issues/1831) +- Serialize big data in json [\#1828](https://github.com/nlohmann/json/issues/1828) +- Backslash '\' in value causes exception [\#1827](https://github.com/nlohmann/json/issues/1827) +- from\_json for non default constructible class with dependency injection [\#1819](https://github.com/nlohmann/json/issues/1819) +- Semi-frequent timeouts in `test-unicode_all` with 3.6.1 \(aarch64\) [\#1816](https://github.com/nlohmann/json/issues/1816) +- input\_adapter not user extensible [\#1813](https://github.com/nlohmann/json/issues/1813) +- crash at json::destroy on android [\#1812](https://github.com/nlohmann/json/issues/1812) +- Logs are repeating while cmake [\#1809](https://github.com/nlohmann/json/issues/1809) +- Add a the possibility to add dynamic json objects [\#1795](https://github.com/nlohmann/json/issues/1795) +- Unnecessary test data file in the release [\#1790](https://github.com/nlohmann/json/issues/1790) +- Add support for parse stack limiting [\#1788](https://github.com/nlohmann/json/issues/1788) +- GCC -Wuseless-cast warnings [\#1777](https://github.com/nlohmann/json/issues/1777) +- compilation issue with NVCC 9.0 [\#1773](https://github.com/nlohmann/json/issues/1773) +- Unexpected behavior with fifo\_map json when copy and append [\#1763](https://github.com/nlohmann/json/issues/1763) +- Parse error [\#1761](https://github.com/nlohmann/json/issues/1761) +- Assignment \(using value\(\)\) to nonexistent element behaves differently on Xcode 8 vs Xcode 10 [\#1758](https://github.com/nlohmann/json/issues/1758) +- Readme out of date [\#1756](https://github.com/nlohmann/json/issues/1756) +- cmake\_\* tests don't use the build system's compiler [\#1747](https://github.com/nlohmann/json/issues/1747) +- Static assertions for template type properties required [\#1729](https://github.com/nlohmann/json/issues/1729) +- Use float and possibly half in json::to\_cbor [\#1719](https://github.com/nlohmann/json/issues/1719) +- json::from\_cbor does not respect allow\_exceptions = false when input is string literal [\#1715](https://github.com/nlohmann/json/issues/1715) +- /Zc:\_\_cplusplus leads to C2416 [\#1695](https://github.com/nlohmann/json/issues/1695) +- `unflatten` vs objects with number-ish keys [\#1575](https://github.com/nlohmann/json/issues/1575) +- A "thinner" source code tar as part of release? [\#1572](https://github.com/nlohmann/json/issues/1572) +- Repository is almost 450MB [\#1497](https://github.com/nlohmann/json/issues/1497) +- Substantial performance penalty caused by polymorphic input adapter [\#1457](https://github.com/nlohmann/json/issues/1457) +- Move tests to a separate repo [\#1235](https://github.com/nlohmann/json/issues/1235) +- reduce repos size [\#1185](https://github.com/nlohmann/json/issues/1185) +- CMakeLists.txt in release zips? [\#1184](https://github.com/nlohmann/json/issues/1184) +- Minimal branch? [\#1066](https://github.com/nlohmann/json/issues/1066) +- Move test blobs to a submodule? [\#732](https://github.com/nlohmann/json/issues/732) +- \[Question\] When using this as git submodule, will it clone the whole thing include test data and benchmark? [\#620](https://github.com/nlohmann/json/issues/620) +- Need to improve ignores.. [\#567](https://github.com/nlohmann/json/issues/567) +- Minimal repository \(current size very large\) [\#556](https://github.com/nlohmann/json/issues/556) +- For a header-only library you have to clone 214MB [\#482](https://github.com/nlohmann/json/issues/482) +- 17 MB / 90 MB repo size!? [\#96](https://github.com/nlohmann/json/issues/96) + +- Improve parse\_ubjson\_fuzzer [\#2182](https://github.com/nlohmann/json/pull/2182) ([tanuj208](https://github.com/tanuj208)) +- Add input adapter tests [\#2178](https://github.com/nlohmann/json/pull/2178) ([nlohmann](https://github.com/nlohmann)) +- Fix warnings [\#2174](https://github.com/nlohmann/json/pull/2174) ([nlohmann](https://github.com/nlohmann)) +- Fix PR\#1006 [\#2158](https://github.com/nlohmann/json/pull/2158) ([dota17](https://github.com/dota17)) +- Fix issue\#1972 [\#2153](https://github.com/nlohmann/json/pull/2153) ([dota17](https://github.com/dota17)) +- Update URLs to HTTPS [\#2152](https://github.com/nlohmann/json/pull/2152) ([TotalCaesar659](https://github.com/TotalCaesar659)) +- Fix Issue\#1813: user defined input adapters [\#2145](https://github.com/nlohmann/json/pull/2145) ([FrancoisChabot](https://github.com/FrancoisChabot)) +- Fix issue\#1939: Cast character to unsigned for comparison [\#2144](https://github.com/nlohmann/json/pull/2144) ([XyFreak](https://github.com/XyFreak)) +- Fix issue\#2142: readme: fix typo in CMake FetchContent example [\#2143](https://github.com/nlohmann/json/pull/2143) ([quentin-dev](https://github.com/quentin-dev)) +- Respect allow\_exceptions=false for binary formats [\#2140](https://github.com/nlohmann/json/pull/2140) ([nlohmann](https://github.com/nlohmann)) +- Fix issue 2112 [\#2137](https://github.com/nlohmann/json/pull/2137) ([dota17](https://github.com/dota17)) +- Add bleeding edge GCC to CI [\#2136](https://github.com/nlohmann/json/pull/2136) ([aokellermann](https://github.com/aokellermann)) +- Clean up implementation of binary type [\#2125](https://github.com/nlohmann/json/pull/2125) ([nlohmann](https://github.com/nlohmann)) +- Fixed a compilation error in MSVC [\#2121](https://github.com/nlohmann/json/pull/2121) ([gistrec](https://github.com/gistrec)) +- Overwork CI [\#2119](https://github.com/nlohmann/json/pull/2119) ([nlohmann](https://github.com/nlohmann)) +- Fix warnings from Clang 10 and GCC 9 [\#2116](https://github.com/nlohmann/json/pull/2116) ([nlohmann](https://github.com/nlohmann)) +- Do not include \ when using C++17 [\#2115](https://github.com/nlohmann/json/pull/2115) ([nlohmann](https://github.com/nlohmann)) +- Fix issue\#2086: disallow json::value\_t type parameter in value\(\) [\#2104](https://github.com/nlohmann/json/pull/2104) ([dota17](https://github.com/dota17)) +- Fix Coveralls integration [\#2100](https://github.com/nlohmann/json/pull/2100) ([nlohmann](https://github.com/nlohmann)) +- Add tests for binary values [\#2099](https://github.com/nlohmann/json/pull/2099) ([nlohmann](https://github.com/nlohmann)) +- Use external test data [\#2081](https://github.com/nlohmann/json/pull/2081) ([nlohmann](https://github.com/nlohmann)) +- Remove Doozer CI [\#2080](https://github.com/nlohmann/json/pull/2080) ([nlohmann](https://github.com/nlohmann)) +- Fix README.md. Missing ``` [\#2077](https://github.com/nlohmann/json/pull/2077) ([ArthurSonzogni](https://github.com/ArthurSonzogni)) +- Fix error message about invalid surrogate pairs [\#2076](https://github.com/nlohmann/json/pull/2076) ([rmisev](https://github.com/rmisev)) +- Add CMake fetchcontent documentation and tests [\#2074](https://github.com/nlohmann/json/pull/2074) ([ArthurSonzogni](https://github.com/ArthurSonzogni)) +- Properly pass serialize\_binary to dump function [\#2071](https://github.com/nlohmann/json/pull/2071) ([nlohmann](https://github.com/nlohmann)) +- Fix returning reference to local temporary object [\#2069](https://github.com/nlohmann/json/pull/2069) ([nlohmann](https://github.com/nlohmann)) +- updated wandbox link [\#2060](https://github.com/nlohmann/json/pull/2060) ([alexandermyasnikov](https://github.com/alexandermyasnikov)) +- Fix bug in diff function [\#2054](https://github.com/nlohmann/json/pull/2054) ([nlohmann](https://github.com/nlohmann)) +- Fix GCC compiler warnings [\#2053](https://github.com/nlohmann/json/pull/2053) ([nlohmann](https://github.com/nlohmann)) +- Fix Clang compiler warnings [\#2051](https://github.com/nlohmann/json/pull/2051) ([nlohmann](https://github.com/nlohmann)) +- Update doctest to 2.3.7 [\#2050](https://github.com/nlohmann/json/pull/2050) ([nlohmann](https://github.com/nlohmann)) +- Fix issue\#1719 [\#2044](https://github.com/nlohmann/json/pull/2044) ([dota17](https://github.com/dota17)) +- Add missing testcase about NaN in unit-constructor1.cpp [\#2043](https://github.com/nlohmann/json/pull/2043) ([dota17](https://github.com/dota17)) +- Templatize basic\_json constructor from json\_ref [\#2034](https://github.com/nlohmann/json/pull/2034) ([ArtemSarmini](https://github.com/ArtemSarmini)) +- Replace deprecated std::is\_pod [\#2033](https://github.com/nlohmann/json/pull/2033) ([nlohmann](https://github.com/nlohmann)) +- Fixes \#1971 \(memory leak in basic\_json::push\_back\) [\#2025](https://github.com/nlohmann/json/pull/2025) ([ArtemSarmini](https://github.com/ArtemSarmini)) +- fix \#1982:json\_pointer.contains\(\) exception is incorrectly raised [\#2019](https://github.com/nlohmann/json/pull/2019) ([dota17](https://github.com/dota17)) +- Update LICENSE.MIT [\#2010](https://github.com/nlohmann/json/pull/2010) ([magamig](https://github.com/magamig)) +- PR for \#2006 to test in AppVeyor. [\#2008](https://github.com/nlohmann/json/pull/2008) ([garethsb](https://github.com/garethsb)) +- Added wsjcpp.yml [\#2004](https://github.com/nlohmann/json/pull/2004) ([sea-kg](https://github.com/sea-kg)) +- fix error 'setw' is not a member of 'std' in Wandbox example [\#2002](https://github.com/nlohmann/json/pull/2002) ([alexandermyasnikov](https://github.com/alexandermyasnikov)) +- catch exceptions for json\_pointer : ..../+99 [\#1990](https://github.com/nlohmann/json/pull/1990) ([dota17](https://github.com/dota17)) +- Modify the document about operator== [\#1984](https://github.com/nlohmann/json/pull/1984) ([dota17](https://github.com/dota17)) +- Rename argument array\_index to array\_indx in json\_pointer methods [\#1980](https://github.com/nlohmann/json/pull/1980) ([linev](https://github.com/linev)) +- README: Fix string representation of `dump`ed `json` [\#1979](https://github.com/nlohmann/json/pull/1979) ([alex-weej](https://github.com/alex-weej)) +- fix warnings in serializer.hpp for VS2019 [\#1969](https://github.com/nlohmann/json/pull/1969) ([dota17](https://github.com/dota17)) +- Fix C26451 warnnings in to\_chars.hpp [\#1967](https://github.com/nlohmann/json/pull/1967) ([dota17](https://github.com/dota17)) +- appveyor.yml: Compile and test with latest version for \_\_cplusplus ma… [\#1958](https://github.com/nlohmann/json/pull/1958) ([t-b](https://github.com/t-b)) +- Fix typo in examples [\#1956](https://github.com/nlohmann/json/pull/1956) ([dota17](https://github.com/dota17)) +- templated input adapters [\#1950](https://github.com/nlohmann/json/pull/1950) ([FrancoisChabot](https://github.com/FrancoisChabot)) +- Update README.md : add a FAQ about memory release [\#1933](https://github.com/nlohmann/json/pull/1933) ([dota17](https://github.com/dota17)) +- Some typos [\#1923](https://github.com/nlohmann/json/pull/1923) ([Coeur](https://github.com/Coeur)) +- Fix link to parse function in README [\#1918](https://github.com/nlohmann/json/pull/1918) ([kastiglione](https://github.com/kastiglione)) +- Readme: Updated links to hunter repo & docs [\#1917](https://github.com/nlohmann/json/pull/1917) ([jothepro](https://github.com/jothepro)) +- Adds instruction for using Build2's package manager [\#1909](https://github.com/nlohmann/json/pull/1909) ([Klaim](https://github.com/Klaim)) +- Update README.md [\#1907](https://github.com/nlohmann/json/pull/1907) ([pauljurczak](https://github.com/pauljurczak)) +- Fix warning: ignoring return value [\#1871](https://github.com/nlohmann/json/pull/1871) ([sonulohani](https://github.com/sonulohani)) +- docs: add central repository as conan source to readme [\#1857](https://github.com/nlohmann/json/pull/1857) ([gocarlos](https://github.com/gocarlos)) +- README: Package in MSYS2 renamed to nlohmann-json [\#1853](https://github.com/nlohmann/json/pull/1853) ([podsvirov](https://github.com/podsvirov)) +- Fix msvc warnings [\#1846](https://github.com/nlohmann/json/pull/1846) ([MBalszun](https://github.com/MBalszun)) +- Update tests that generate CMake projects to use main project's C++ compiler [\#1844](https://github.com/nlohmann/json/pull/1844) ([Tridacnid](https://github.com/Tridacnid)) +- make CMake's version config file architecture-independent [\#1746](https://github.com/nlohmann/json/pull/1746) ([uhoreg](https://github.com/uhoreg)) +- Add binary type support to all binary file formats, as well as an internally represented binary type [\#1662](https://github.com/nlohmann/json/pull/1662) ([OmnipotentEntity](https://github.com/OmnipotentEntity)) + +## [v3.7.3](https://github.com/nlohmann/json/releases/tag/v3.7.3) (2019-11-17) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.7.2...v3.7.3) + +- Project branches [\#1839](https://github.com/nlohmann/json/issues/1839) +- Quadratic destruction complexity introduced in \#1436 [\#1837](https://github.com/nlohmann/json/issues/1837) +- Trying to open a file [\#1814](https://github.com/nlohmann/json/issues/1814) +- Comparing data type with value\_t::number\_integer fails [\#1783](https://github.com/nlohmann/json/issues/1783) +- CMake version config file is architecture-dependent [\#1697](https://github.com/nlohmann/json/issues/1697) + +- Fix quadratic destruction complexity [\#1838](https://github.com/nlohmann/json/pull/1838) ([nickaein](https://github.com/nickaein)) + +## [v3.7.2](https://github.com/nlohmann/json/releases/tag/v3.7.2) (2019-11-10) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.7.1...v3.7.2) + +- Segmentation fault in destructor in case of large inputs [\#1835](https://github.com/nlohmann/json/issues/1835) +- type\_name\(\) is not consistent with type\(\) [\#1833](https://github.com/nlohmann/json/issues/1833) +- json::parse is not a member [\#1832](https://github.com/nlohmann/json/issues/1832) +- How do you deal with json\* ? [\#1829](https://github.com/nlohmann/json/issues/1829) +- Combined find\_package/add\_subdirectory not linking libraries [\#1771](https://github.com/nlohmann/json/issues/1771) +- example code for ifstream reading a json file results in no operator error [\#1766](https://github.com/nlohmann/json/issues/1766) +- Warning: unsequenced modification and access to 'range' [\#1674](https://github.com/nlohmann/json/issues/1674) +- Segmentation fault \(stack overflow\) due to unbounded recursion [\#1419](https://github.com/nlohmann/json/issues/1419) +- Stack-overflow \(OSS-Fuzz 4234\) [\#832](https://github.com/nlohmann/json/issues/832) + +- Configure WhiteSource Bolt for GitHub [\#1830](https://github.com/nlohmann/json/pull/1830) ([whitesource-bolt-for-github[bot]](https://github.com/apps/whitesource-bolt-for-github)) +- Prevent stackoverflow caused by recursive deconstruction [\#1436](https://github.com/nlohmann/json/pull/1436) ([nickaein](https://github.com/nickaein)) + +## [v3.7.1](https://github.com/nlohmann/json/releases/tag/v3.7.1) (2019-11-06) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.7.0...v3.7.1) + +- std::is\_constructible is always true with tuple [\#1825](https://github.com/nlohmann/json/issues/1825) +- Can't compile from\_json\(std::valarray\\). [\#1824](https://github.com/nlohmann/json/issues/1824) +- json class should have a get\_or member function [\#1823](https://github.com/nlohmann/json/issues/1823) +- NLOHMANN\_JSON\_SERIALIZE\_ENUM macro capture's json objects by value [\#1822](https://github.com/nlohmann/json/issues/1822) +- Parse fails when number literals start with zero [\#1820](https://github.com/nlohmann/json/issues/1820) +- Weird behaviour of `contains` with `json_pointer` [\#1815](https://github.com/nlohmann/json/issues/1815) +- strange behaviour with json\_pointer and .contains\(\) [\#1811](https://github.com/nlohmann/json/issues/1811) +- Can \#1695 be re-opened? [\#1808](https://github.com/nlohmann/json/issues/1808) +- Merge two json objects [\#1807](https://github.com/nlohmann/json/issues/1807) +- std::is\_constructible\\> when to\_json not defined [\#1805](https://github.com/nlohmann/json/issues/1805) +- Private data on parsing [\#1802](https://github.com/nlohmann/json/issues/1802) +- Capturing Line and Position when querying [\#1800](https://github.com/nlohmann/json/issues/1800) +- json error on parsing DBL\_MAX from string [\#1796](https://github.com/nlohmann/json/issues/1796) +- De/Serialisation of vector of tupple object with nested obect need Help please [\#1794](https://github.com/nlohmann/json/issues/1794) +- Output json is corrupted [\#1793](https://github.com/nlohmann/json/issues/1793) +- variable name byte sometimes used as a \#define [\#1792](https://github.com/nlohmann/json/issues/1792) +- Can't read json file [\#1791](https://github.com/nlohmann/json/issues/1791) +- Problems with special German letters [\#1789](https://github.com/nlohmann/json/issues/1789) +- Support for trailing commas [\#1787](https://github.com/nlohmann/json/issues/1787) +- json\_pointer construction bug [\#1786](https://github.com/nlohmann/json/issues/1786) +- Visual Studio 2017 warning [\#1784](https://github.com/nlohmann/json/issues/1784) +- ciso646 header become obsolete [\#1782](https://github.com/nlohmann/json/issues/1782) +- Migrate LGTM.com installation from OAuth to GitHub App [\#1781](https://github.com/nlohmann/json/issues/1781) +- JSON comparison, contains and operator& [\#1778](https://github.com/nlohmann/json/issues/1778) +- pass a json object to a class contructor adds an array around the object [\#1776](https://github.com/nlohmann/json/issues/1776) +- 'Float' number\_float\_function\_t template parameter name conflicts with C '\#define Float float' [\#1775](https://github.com/nlohmann/json/issues/1775) +- A weird building problem :-\( [\#1774](https://github.com/nlohmann/json/issues/1774) +- What is this json\_ref? [\#1772](https://github.com/nlohmann/json/issues/1772) +- Interoperability with other languages [\#1770](https://github.com/nlohmann/json/issues/1770) +- Json dump [\#1768](https://github.com/nlohmann/json/issues/1768) +- json\_pointer\<\>::back\(\) should be const [\#1764](https://github.com/nlohmann/json/issues/1764) +- How to get value from array [\#1762](https://github.com/nlohmann/json/issues/1762) +- Merge two jsons [\#1757](https://github.com/nlohmann/json/issues/1757) +- Unable to locate nlohmann\_jsonConfig.cmake [\#1755](https://github.com/nlohmann/json/issues/1755) +- json.hpp won;t compile VS2019 CLR/CLI app but does in console app [\#1754](https://github.com/nlohmann/json/issues/1754) +- \[Nested Json Objects\] Segmentation fault [\#1753](https://github.com/nlohmann/json/issues/1753) +- remove/replace assert with exceptions [\#1752](https://github.com/nlohmann/json/issues/1752) +- Add array support for update\(\) function [\#1751](https://github.com/nlohmann/json/issues/1751) +- Is there a reason the `get_to` method is defined in `include/nlohmann/json.hpp` but not in `single_include/nlohmann/json.hpp`? [\#1750](https://github.com/nlohmann/json/issues/1750) +- how to validate json object before calling dump\(\) [\#1748](https://github.com/nlohmann/json/issues/1748) +- Unable to invoke accessors on json objects in lldb [\#1745](https://github.com/nlohmann/json/issues/1745) +- Escaping string before parsing [\#1743](https://github.com/nlohmann/json/issues/1743) +- Construction in a member initializer list using curly braces is set as 'array' [\#1742](https://github.com/nlohmann/json/issues/1742) +- Read a subkey from json object [\#1740](https://github.com/nlohmann/json/issues/1740) +- Serialize vector of glm:vec2 [\#1739](https://github.com/nlohmann/json/issues/1739) +- Support nlohmann::basic\_json::value with JSON\_NOEXCEPTION [\#1738](https://github.com/nlohmann/json/issues/1738) +- how to know the parse is error [\#1737](https://github.com/nlohmann/json/issues/1737) +- How to check if a given key exists in a JSON object [\#1736](https://github.com/nlohmann/json/issues/1736) +- Allow The Colon Key-Value Delimiter To Have A Space Before It \[@ READ ONLY\] [\#1735](https://github.com/nlohmann/json/issues/1735) +- Allow Tail { "Key": "Value" } Comma \[@ READ ONLY\] [\#1734](https://github.com/nlohmann/json/issues/1734) +- No-throw json::value\(\) [\#1733](https://github.com/nlohmann/json/issues/1733) +- JsonObject.dump\(\) [\#1732](https://github.com/nlohmann/json/issues/1732) +- basic\_json has no member "parse" [\#1731](https://github.com/nlohmann/json/issues/1731) +- Exception "type must be string, but is array" [\#1730](https://github.com/nlohmann/json/issues/1730) +- json::contains usage to find a path [\#1727](https://github.com/nlohmann/json/issues/1727) +- How to create JSON Object from my Structures of Data and Json File from that Object [\#1726](https://github.com/nlohmann/json/issues/1726) +- please provide an API to read JSON from file directly. [\#1725](https://github.com/nlohmann/json/issues/1725) +- How to modify a value stored at a key? [\#1723](https://github.com/nlohmann/json/issues/1723) +- CMake not correctly finding the configuration package for 3.7.0 [\#1721](https://github.com/nlohmann/json/issues/1721) +- name typo in the "spack package management" section of README.md [\#1720](https://github.com/nlohmann/json/issues/1720) +- How to add json to another json? [\#1718](https://github.com/nlohmann/json/issues/1718) +- json::parse\(\) ubsan regression with v3.7.0 [\#1716](https://github.com/nlohmann/json/issues/1716) +- What I am doing wrong?!? [\#1714](https://github.com/nlohmann/json/issues/1714) +- Potential memory leak detected by Valgrind [\#1713](https://github.com/nlohmann/json/issues/1713) +- json::parse is not thread safe? [\#1712](https://github.com/nlohmann/json/issues/1712) +- static analysis alarm by cppcheck [\#1711](https://github.com/nlohmann/json/issues/1711) +- The compilation time is slow [\#1710](https://github.com/nlohmann/json/issues/1710) +- not linking properly with cmake [\#1709](https://github.com/nlohmann/json/issues/1709) +- Error in dump\(\) with int64\_t minimum value [\#1708](https://github.com/nlohmann/json/issues/1708) +- Crash on trying to deserialize json string on 3ds homebrew [\#1707](https://github.com/nlohmann/json/issues/1707) +- Can't compile VS2019. 13 Errors [\#1706](https://github.com/nlohmann/json/issues/1706) +- find an object that matches the search criteria [\#1705](https://github.com/nlohmann/json/issues/1705) +- IntelliSense goes crazy on VS2019 [\#1704](https://github.com/nlohmann/json/issues/1704) +- Installing on Ubuntu 16.04 [\#1703](https://github.com/nlohmann/json/issues/1703) +- Where is json::parse now? [\#1702](https://github.com/nlohmann/json/issues/1702) +- Forward header should't be amalgamated [\#1700](https://github.com/nlohmann/json/issues/1700) +- Json support for Cmake version 2.8.12 [\#1699](https://github.com/nlohmann/json/issues/1699) +- Intruisive scientific notation when using .dump\(\); [\#1698](https://github.com/nlohmann/json/issues/1698) +- Is there support for automatic serialization/deserialization? [\#1696](https://github.com/nlohmann/json/issues/1696) +- on MSVC dump\(\) will hard crash for larger json [\#1693](https://github.com/nlohmann/json/issues/1693) +- puzzled implicit conversions [\#1692](https://github.com/nlohmann/json/issues/1692) +- Information: My project uses this awesome library [\#1691](https://github.com/nlohmann/json/issues/1691) +- Consider listing files explicitly instead of using GLOB [\#1686](https://github.com/nlohmann/json/issues/1686) +- Failing tests on MSVC with VS2019 15.9.13 x64 [\#1685](https://github.com/nlohmann/json/issues/1685) +- Consider putting the user-defined literals in a namespace [\#1682](https://github.com/nlohmann/json/issues/1682) +- Change from v2 to v3. Encoding with cp1252 [\#1680](https://github.com/nlohmann/json/issues/1680) +- How to add Fifo\_map into json using Cmake [\#1679](https://github.com/nlohmann/json/issues/1679) +- include.zip should contain meson.build [\#1672](https://github.com/nlohmann/json/issues/1672) +- \[Question\] How do I parse JSON into custom types? [\#1669](https://github.com/nlohmann/json/issues/1669) +- Binary \(0x05\) data type for BSON to JSON conversion [\#1668](https://github.com/nlohmann/json/issues/1668) +- Possible to call dump from lldb? [\#1666](https://github.com/nlohmann/json/issues/1666) +- Segmentation fault when linked with libunwind [\#1665](https://github.com/nlohmann/json/issues/1665) +- Should I include single-header after my to\_json and from\_json custom functions declaration? Why not? [\#1663](https://github.com/nlohmann/json/issues/1663) +- Errors/Warnings in VS 2019 when Including Header File [\#1659](https://github.com/nlohmann/json/issues/1659) +- Return null object from object's const operator\[\] as well. [\#1658](https://github.com/nlohmann/json/issues/1658) +- Can't stream json object in to std::basic\_stringstream\ [\#1656](https://github.com/nlohmann/json/issues/1656) +- C2440 in vs2015 cannot convert from 'initializer-list' to nlohmann::basic\_json [\#1655](https://github.com/nlohmann/json/issues/1655) +- Issues around get and pointers [\#1653](https://github.com/nlohmann/json/issues/1653) +- Non-member operator== breaks enum \(de\)serialization [\#1647](https://github.com/nlohmann/json/issues/1647) +- Valgrind: bytes in 1 blocks are definitely lost [\#1646](https://github.com/nlohmann/json/issues/1646) +- Convenient way to make 'basic\_json' accept 'QString' as an key type as well? [\#1640](https://github.com/nlohmann/json/issues/1640) +- mongodb: nan, inf [\#1599](https://github.com/nlohmann/json/issues/1599) +- Error in adl\_serializer [\#1590](https://github.com/nlohmann/json/issues/1590) +- Injecting class during serialization [\#1584](https://github.com/nlohmann/json/issues/1584) +- output\_adapter not user extensible [\#1534](https://github.com/nlohmann/json/issues/1534) +- Inclusion of nlohmann/json.hpp causes OS/ABI to change on Linux [\#1410](https://github.com/nlohmann/json/issues/1410) +- Add library versioning using inline namespaces [\#1394](https://github.com/nlohmann/json/issues/1394) +- CBOR byte string support [\#1129](https://github.com/nlohmann/json/issues/1129) +- How to deserialize array with derived objects [\#716](https://github.com/nlohmann/json/issues/716) + +- Add restriction for tuple specialization of to\_json [\#1826](https://github.com/nlohmann/json/pull/1826) ([cbegue](https://github.com/cbegue)) +- Fix for \#1647 [\#1821](https://github.com/nlohmann/json/pull/1821) ([AnthonyVH](https://github.com/AnthonyVH)) +- Fix issue \#1805 [\#1806](https://github.com/nlohmann/json/pull/1806) ([cbegue](https://github.com/cbegue)) +- Fix some spelling errors - mostly in comments & documentation. [\#1803](https://github.com/nlohmann/json/pull/1803) ([flopp](https://github.com/flopp)) +- Update Hedley to v11. [\#1799](https://github.com/nlohmann/json/pull/1799) ([nemequ](https://github.com/nemequ)) +- iteration\_proxy: Fix integer truncation from std::size\_t to int [\#1797](https://github.com/nlohmann/json/pull/1797) ([t-b](https://github.com/t-b)) +- appveyor.yml: Add MSVC 16 2019 support [\#1780](https://github.com/nlohmann/json/pull/1780) ([t-b](https://github.com/t-b)) +- test/CMakeLists.txt: Use an explicit list instead of GLOB [\#1779](https://github.com/nlohmann/json/pull/1779) ([t-b](https://github.com/t-b)) +- Make json\_pointer::back const \(resolves \#1764\) [\#1769](https://github.com/nlohmann/json/pull/1769) ([chris0x44](https://github.com/chris0x44)) +- did you mean 'serialization'? [\#1767](https://github.com/nlohmann/json/pull/1767) ([0xflotus](https://github.com/0xflotus)) +- Allow items\(\) to be used with custom string [\#1765](https://github.com/nlohmann/json/pull/1765) ([crazyjul](https://github.com/crazyjul)) +- Cppcheck fixes [\#1760](https://github.com/nlohmann/json/pull/1760) ([Xav83](https://github.com/Xav83)) +- Fix and add test's for SFINAE problem [\#1741](https://github.com/nlohmann/json/pull/1741) ([tete17](https://github.com/tete17)) +- Fix clang sanitizer invocation [\#1728](https://github.com/nlohmann/json/pull/1728) ([t-b](https://github.com/t-b)) +- Add gcc 9 and compile with experimental C++20 support [\#1724](https://github.com/nlohmann/json/pull/1724) ([t-b](https://github.com/t-b)) +- Fix int64 min issue [\#1722](https://github.com/nlohmann/json/pull/1722) ([t-b](https://github.com/t-b)) +- release: add singleinclude and meson.build to include.zip [\#1694](https://github.com/nlohmann/json/pull/1694) ([eli-schwartz](https://github.com/eli-schwartz)) + +## [v3.7.0](https://github.com/nlohmann/json/releases/tag/v3.7.0) (2019-07-28) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.6.1...v3.7.0) + +- How can I retrieve uknown strings from json file in my C++ program. [\#1684](https://github.com/nlohmann/json/issues/1684) +- contains\(\) is sometimes causing stack-based buffer overrun exceptions [\#1683](https://github.com/nlohmann/json/issues/1683) +- How to deserialize arrays from json [\#1681](https://github.com/nlohmann/json/issues/1681) +- Compilation failed in VS2015 [\#1678](https://github.com/nlohmann/json/issues/1678) +- Why the compiled object file is so huge? [\#1677](https://github.com/nlohmann/json/issues/1677) +- From Version 2.1.1 to 3.6.1 serialize std::set [\#1676](https://github.com/nlohmann/json/issues/1676) +- Qt deprecation model halting compiltion [\#1675](https://github.com/nlohmann/json/issues/1675) +- Build For Raspberry pi , Rapbery with new Compiler C++17 [\#1671](https://github.com/nlohmann/json/issues/1671) +- Build from Raspberry pi [\#1667](https://github.com/nlohmann/json/issues/1667) +- Can not translate map with integer key to dict string ? [\#1664](https://github.com/nlohmann/json/issues/1664) +- Double type converts to scientific notation [\#1661](https://github.com/nlohmann/json/issues/1661) +- Missing v3.6.1 tag on master branch [\#1657](https://github.com/nlohmann/json/issues/1657) +- Support Fleese Binary Data Format [\#1654](https://github.com/nlohmann/json/issues/1654) +- Suggestion: replace alternative tokens for !, && and || with their symbols [\#1652](https://github.com/nlohmann/json/issues/1652) +- Build failure test-allocator.vcxproj [\#1651](https://github.com/nlohmann/json/issues/1651) +- How to provide function json& to\_json\(\) which is similar as 'void to\_json\(json&j, const CObject& obj\)' ? [\#1650](https://github.com/nlohmann/json/issues/1650) +- Can't throw exception when starting file is a number [\#1649](https://github.com/nlohmann/json/issues/1649) +- to\_json / from\_json with nested type [\#1648](https://github.com/nlohmann/json/issues/1648) +- How to create a json object from a std::string, created by j.dump? [\#1645](https://github.com/nlohmann/json/issues/1645) +- Problem getting vector \(array\) of strings [\#1644](https://github.com/nlohmann/json/issues/1644) +- json.hpp compilation issue with other typedefs with same name [\#1642](https://github.com/nlohmann/json/issues/1642) +- nlohmann::adl\_serializer\::to\_json no matching overloaded function found [\#1641](https://github.com/nlohmann/json/issues/1641) +- overwrite adl\_serializer\ to change behaviour [\#1638](https://github.com/nlohmann/json/issues/1638) +- json.SelectToken\("Manufacturers.Products.Price"\); [\#1637](https://github.com/nlohmann/json/issues/1637) +- Add json type as value [\#1636](https://github.com/nlohmann/json/issues/1636) +- Unit conversion test error: conversion from 'nlohmann::json' to non-scalar type 'std::string\_view' requested [\#1634](https://github.com/nlohmann/json/issues/1634) +- nlohmann VS JsonCpp by C++17 [\#1633](https://github.com/nlohmann/json/issues/1633) +- To integrate an inline helper function that return type name as string [\#1632](https://github.com/nlohmann/json/issues/1632) +- Return JSON as reference [\#1631](https://github.com/nlohmann/json/issues/1631) +- Updating from an older version causes problems with assing a json object to a struct [\#1630](https://github.com/nlohmann/json/issues/1630) +- Can without default constructor function for user defined classes when only to\_json is needed? [\#1629](https://github.com/nlohmann/json/issues/1629) +- Compilation fails with clang 6.x-8.x in C++14 mode [\#1628](https://github.com/nlohmann/json/issues/1628) +- Treating floating point as string [\#1627](https://github.com/nlohmann/json/issues/1627) +- error parsing character å [\#1626](https://github.com/nlohmann/json/issues/1626) +- \[Help\] How to Improve Json Output Performance with Large Json Arrays [\#1624](https://github.com/nlohmann/json/issues/1624) +- Suggested link changes for reporting new issues \[blob/develop/REAME.md and blob/develop/.github/CONTRIBUTING.md\] [\#1623](https://github.com/nlohmann/json/issues/1623) +- Broken link to issue template in CONTRIBUTING.md [\#1622](https://github.com/nlohmann/json/issues/1622) +- Missing word in README.md file [\#1621](https://github.com/nlohmann/json/issues/1621) +- Package manager instructions in README for brew is incorrect [\#1620](https://github.com/nlohmann/json/issues/1620) +- Building with Visual Studio 2019 [\#1619](https://github.com/nlohmann/json/issues/1619) +- Precedence of to\_json and builtin harmful [\#1617](https://github.com/nlohmann/json/issues/1617) +- The type json is missing from the html documentation [\#1616](https://github.com/nlohmann/json/issues/1616) +- variant is not support in Release 3.6.1? [\#1615](https://github.com/nlohmann/json/issues/1615) +- Replace assert with throw for const operator\[\] [\#1614](https://github.com/nlohmann/json/issues/1614) +- Memory Overhead is Too High \(10x or more\) [\#1613](https://github.com/nlohmann/json/issues/1613) +- program crash everytime, when other data type incomming in json stream as expected [\#1612](https://github.com/nlohmann/json/issues/1612) +- Improved Enum Support [\#1611](https://github.com/nlohmann/json/issues/1611) +- is it possible convert json object back to stl container ? [\#1610](https://github.com/nlohmann/json/issues/1610) +- Add C++17-like emplace.back\(\) for arrays. [\#1609](https://github.com/nlohmann/json/issues/1609) +- is\_nothrow\_copy\_constructible fails for json::const\_iterator on MSVC2015 x86 Debug build [\#1608](https://github.com/nlohmann/json/issues/1608) +- Reading and writing array elements [\#1607](https://github.com/nlohmann/json/issues/1607) +- Converting json::value to int [\#1605](https://github.com/nlohmann/json/issues/1605) +- I have a vector of keys and and a string of value and i want to create nested json array [\#1604](https://github.com/nlohmann/json/issues/1604) +- In compatible JSON object from nlohmann::json to nohman::json - unexpected end of input; expected '\[', '{', or a literal [\#1603](https://github.com/nlohmann/json/issues/1603) +- json parser crash if having a large number integer in message [\#1602](https://github.com/nlohmann/json/issues/1602) +- Value method with undocumented throwing 302 exception [\#1601](https://github.com/nlohmann/json/issues/1601) +- Accessing value with json pointer adds key if not existing [\#1600](https://github.com/nlohmann/json/issues/1600) +- README.md broken link to project documentation [\#1597](https://github.com/nlohmann/json/issues/1597) +- Random Kudos: Thanks for your work on this! [\#1596](https://github.com/nlohmann/json/issues/1596) +- json::parse return value and errors [\#1595](https://github.com/nlohmann/json/issues/1595) +- initializer list constructor makes curly brace initialization fragile [\#1594](https://github.com/nlohmann/json/issues/1594) +- trying to log message for missing keyword, difference between \["foo"\] and at\("foo"\) [\#1593](https://github.com/nlohmann/json/issues/1593) +- std::string and std::wstring `to_json` [\#1592](https://github.com/nlohmann/json/issues/1592) +- I have a C structure which I need to convert to a JSON. How do I do it? Haven't found proper examples so far. [\#1591](https://github.com/nlohmann/json/issues/1591) +- dump\_escaped possible error ? [\#1589](https://github.com/nlohmann/json/issues/1589) +- json::parse\(\) into a vector\ results in unhandled exception [\#1587](https://github.com/nlohmann/json/issues/1587) +- push\_back\(\)/emplace\_back\(\) on array invalidates pointers to existing array items [\#1586](https://github.com/nlohmann/json/issues/1586) +- Getting nlohmann::detail::parse\_error on JSON generated by nlohmann::json not sure why [\#1583](https://github.com/nlohmann/json/issues/1583) +- getting error terminate called after throwing an instance of 'std::domain\_error' what\(\): cannot use at\(\) with string [\#1582](https://github.com/nlohmann/json/issues/1582) +- how i create json file [\#1581](https://github.com/nlohmann/json/issues/1581) +- prevent rounding of double datatype values [\#1580](https://github.com/nlohmann/json/issues/1580) +- Documentation Container Overview Doesn't Reference Const Methods [\#1579](https://github.com/nlohmann/json/issues/1579) +- Writing an array into a nlohmann::json object [\#1578](https://github.com/nlohmann/json/issues/1578) +- compilation error when using with another library [\#1577](https://github.com/nlohmann/json/issues/1577) +- Homebrew on OSX doesn't install cmake config file [\#1576](https://github.com/nlohmann/json/issues/1576) +- JSON Parse Out of Range Error [\#1574](https://github.com/nlohmann/json/issues/1574) +- Integrating into existing CMake Project [\#1573](https://github.com/nlohmann/json/issues/1573) +- conversion to std::string failed [\#1571](https://github.com/nlohmann/json/issues/1571) +- jPtr operation does not throw [\#1569](https://github.com/nlohmann/json/issues/1569) +- How to generate dll file for this project [\#1568](https://github.com/nlohmann/json/issues/1568) +- how to pass variable data to json in c [\#1567](https://github.com/nlohmann/json/issues/1567) +- I want to achieve an upgraded function. [\#1566](https://github.com/nlohmann/json/issues/1566) +- How to determine the type of elements read from a JSON array? [\#1564](https://github.com/nlohmann/json/issues/1564) +- try\_get\_to [\#1563](https://github.com/nlohmann/json/issues/1563) +- example code compile error [\#1562](https://github.com/nlohmann/json/issues/1562) +- How to iterate over nested json object [\#1561](https://github.com/nlohmann/json/issues/1561) +- Build Option/Separate Function to Allow to Throw on Duplicate Keys [\#1560](https://github.com/nlohmann/json/issues/1560) +- Compiler Switches -Weffc++ & -Wshadow are throwing errors [\#1558](https://github.com/nlohmann/json/issues/1558) +- warning: use of the 'nodiscard' attribute is a C++17 extension [\#1557](https://github.com/nlohmann/json/issues/1557) +- Import/Export compressed JSON files [\#1556](https://github.com/nlohmann/json/issues/1556) +- GDB renderers for json library [\#1554](https://github.com/nlohmann/json/issues/1554) +- Is it possible to construct a json string object from a binary buffer? [\#1553](https://github.com/nlohmann/json/issues/1553) +- json objects in list [\#1552](https://github.com/nlohmann/json/issues/1552) +- Matrix output [\#1550](https://github.com/nlohmann/json/issues/1550) +- Using json merge\_patch on ordered non-alphanumeric datasets [\#1549](https://github.com/nlohmann/json/issues/1549) +- Invalid parsed value for big integer [\#1548](https://github.com/nlohmann/json/issues/1548) +- Integrating with android ndk issues. [\#1547](https://github.com/nlohmann/json/issues/1547) +- add noexcept json::value\("key", default\) method variant? [\#1546](https://github.com/nlohmann/json/issues/1546) +- Thank you! 🙌 [\#1545](https://github.com/nlohmann/json/issues/1545) +- Output and input matrix [\#1544](https://github.com/nlohmann/json/issues/1544) +- Add regression tests for MSVC [\#1543](https://github.com/nlohmann/json/issues/1543) +- \[Help Needed!\] Season of Docs [\#1542](https://github.com/nlohmann/json/issues/1542) +- program still abort\(\) or exit\(\) with try catch [\#1541](https://github.com/nlohmann/json/issues/1541) +- Have a json::type\_error exception because of JSON object [\#1540](https://github.com/nlohmann/json/issues/1540) +- Using versioned namespaces [\#1539](https://github.com/nlohmann/json/issues/1539) +- Quoted numbers [\#1538](https://github.com/nlohmann/json/issues/1538) +- Reading a JSON file into an object [\#1537](https://github.com/nlohmann/json/issues/1537) +- Releases 3.6.0 and 3.6.1 don't build on conda / windows [\#1536](https://github.com/nlohmann/json/issues/1536) +- \[Clang\] warning: use of the 'nodiscard' attribute is a C++17 extension \[-Wc++17-extensions\] [\#1535](https://github.com/nlohmann/json/issues/1535) +- wchar\_t/std::wstring json can be created but not accessed [\#1533](https://github.com/nlohmann/json/issues/1533) +- json stringify [\#1532](https://github.com/nlohmann/json/issues/1532) +- How can I use it from gcc on RPI [\#1528](https://github.com/nlohmann/json/issues/1528) +- std::pair treated as an array instead of key-value in `std::vector>` [\#1520](https://github.com/nlohmann/json/issues/1520) +- Excessive Memory Usage for Large Json File [\#1516](https://github.com/nlohmann/json/issues/1516) +- SAX dumper [\#1512](https://github.com/nlohmann/json/issues/1512) +- Conversion to user type containing a std::vector not working with documented approach [\#1511](https://github.com/nlohmann/json/issues/1511) +- Inconsistent use of type alias. [\#1507](https://github.com/nlohmann/json/issues/1507) +- Is there a current way to represent strings as json int? [\#1503](https://github.com/nlohmann/json/issues/1503) +- Intermittent issues with loadJSON [\#1484](https://github.com/nlohmann/json/issues/1484) +- use json construct std::string [\#1462](https://github.com/nlohmann/json/issues/1462) +- JSON Creation [\#1461](https://github.com/nlohmann/json/issues/1461) +- Null bytes in files are treated like EOF [\#1095](https://github.com/nlohmann/json/issues/1095) +- Feature: to\_string\(const json& j\); [\#916](https://github.com/nlohmann/json/issues/916) + +- Use GNUInstallDirs instead of hard-coded path. [\#1673](https://github.com/nlohmann/json/pull/1673) ([ghost](https://github.com/ghost)) +- Package Manager: MSYS2 \(pacman\) [\#1670](https://github.com/nlohmann/json/pull/1670) ([podsvirov](https://github.com/podsvirov)) +- Fix json.hpp compilation issue with other typedefs with same name \(Issue \#1642\) [\#1643](https://github.com/nlohmann/json/pull/1643) ([kevinlul](https://github.com/kevinlul)) +- Add explicit conversion from json to std::string\_view in conversion unit test [\#1639](https://github.com/nlohmann/json/pull/1639) ([taylorhoward92](https://github.com/taylorhoward92)) +- Minor fixes in docs [\#1625](https://github.com/nlohmann/json/pull/1625) ([nickaein](https://github.com/nickaein)) +- Fix broken links to documentation [\#1598](https://github.com/nlohmann/json/pull/1598) ([nickaein](https://github.com/nickaein)) +- Added to\_string and added basic tests [\#1585](https://github.com/nlohmann/json/pull/1585) ([Macr0Nerd](https://github.com/Macr0Nerd)) +- Regression tests for MSVC [\#1570](https://github.com/nlohmann/json/pull/1570) ([nickaein](https://github.com/nickaein)) +- Fix/1511 [\#1555](https://github.com/nlohmann/json/pull/1555) ([theodelrieu](https://github.com/theodelrieu)) +- Remove C++17 extension warning from clang; \#1535 [\#1551](https://github.com/nlohmann/json/pull/1551) ([heavywatal](https://github.com/heavywatal)) +- moved from Catch to doctest for unit tests [\#1439](https://github.com/nlohmann/json/pull/1439) ([onqtam](https://github.com/onqtam)) + +## [v3.6.1](https://github.com/nlohmann/json/releases/tag/v3.6.1) (2019-03-20) + +[Full Changelog](https://github.com/nlohmann/json/compare/3.6.1...v3.6.1) + +## [3.6.1](https://github.com/nlohmann/json/releases/tag/3.6.1) (2019-03-20) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.6.0...3.6.1) + +- Failed to build with \ [\#1531](https://github.com/nlohmann/json/issues/1531) +- Compiling 3.6.0 with GCC \> 7, array vs std::array \#590 is back [\#1530](https://github.com/nlohmann/json/issues/1530) +- 3.6.0: warning: missing initializer for member 'std::array\::\_M\_elems' \[-Wmissing-field-initializers\] [\#1527](https://github.com/nlohmann/json/issues/1527) +- unable to parse json [\#1525](https://github.com/nlohmann/json/issues/1525) + +## [v3.6.0](https://github.com/nlohmann/json/releases/tag/v3.6.0) (2019-03-19) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.5.0...v3.6.0) + +- How can I turn a string of a json array into a json array? [\#1526](https://github.com/nlohmann/json/issues/1526) +- Minor: missing a std:: namespace tag [\#1521](https://github.com/nlohmann/json/issues/1521) +- how to precision to four decimal for double when use to\_json [\#1519](https://github.com/nlohmann/json/issues/1519) +- error parse [\#1518](https://github.com/nlohmann/json/issues/1518) +- Compile error: template argument deduction/substitution failed [\#1515](https://github.com/nlohmann/json/issues/1515) +- std::complex type [\#1510](https://github.com/nlohmann/json/issues/1510) +- CBOR byte string support [\#1509](https://github.com/nlohmann/json/issues/1509) +- Compilation error getting a std::pair\<\> on latest VS 2017 compiler [\#1506](https://github.com/nlohmann/json/issues/1506) +- "Integration" section of documentation needs update? [\#1505](https://github.com/nlohmann/json/issues/1505) +- Json object from string from a TCP socket [\#1504](https://github.com/nlohmann/json/issues/1504) +- MSVC warning C4946 \("reinterpret\_cast used between related classes"\) compiling json.hpp [\#1502](https://github.com/nlohmann/json/issues/1502) +- How to programmatically fill an n-th dimensional JSON object? [\#1501](https://github.com/nlohmann/json/issues/1501) +- Error compiling with clang and `JSON_NOEXCEPTION`: need to include `cstdlib` [\#1500](https://github.com/nlohmann/json/issues/1500) +- The code compiles unsuccessfully with android-ndk-r10e [\#1499](https://github.com/nlohmann/json/issues/1499) +- Cmake 3.1 in develop, when is it likely to make it into a stable release? [\#1498](https://github.com/nlohmann/json/issues/1498) +- Some Help please object inside array [\#1494](https://github.com/nlohmann/json/issues/1494) +- How to get data into vector of user-defined type from a Json object [\#1493](https://github.com/nlohmann/json/issues/1493) +- how to find subelement without loop [\#1490](https://github.com/nlohmann/json/issues/1490) +- json to std::map [\#1487](https://github.com/nlohmann/json/issues/1487) +- Type in README.md [\#1486](https://github.com/nlohmann/json/issues/1486) +- Error in parsing and reading msgpack-lite [\#1485](https://github.com/nlohmann/json/issues/1485) +- Compiling issues with libc 2.12 [\#1483](https://github.com/nlohmann/json/issues/1483) +- How do I use reference or pointer binding values? [\#1482](https://github.com/nlohmann/json/issues/1482) +- Compilation fails in MSVC with the Microsoft Language Extensions disabled [\#1481](https://github.com/nlohmann/json/issues/1481) +- Functional visit [\#1480](https://github.com/nlohmann/json/issues/1480) +- \[Question\] Unescaped dump [\#1479](https://github.com/nlohmann/json/issues/1479) +- Some Help please [\#1478](https://github.com/nlohmann/json/issues/1478) +- Global variables are stored within the JSON file, how do I declare them as global variables when I read them out in my C++ program? [\#1476](https://github.com/nlohmann/json/issues/1476) +- Unable to modify one of the values within the JSON file, and save it [\#1475](https://github.com/nlohmann/json/issues/1475) +- Documentation of parse function has two identical @pre causes [\#1473](https://github.com/nlohmann/json/issues/1473) +- GCC 9.0 build failure [\#1472](https://github.com/nlohmann/json/issues/1472) +- Can we have an `exists()` method? [\#1471](https://github.com/nlohmann/json/issues/1471) +- How to parse multi object json from file? [\#1470](https://github.com/nlohmann/json/issues/1470) +- How to returns the name of the upper object? [\#1467](https://github.com/nlohmann/json/issues/1467) +- Error: "tuple\_size" has already been declared in the current scope [\#1466](https://github.com/nlohmann/json/issues/1466) +- Checking keys of two jsons against eachother [\#1465](https://github.com/nlohmann/json/issues/1465) +- Disable installation when used as meson subproject [\#1463](https://github.com/nlohmann/json/issues/1463) +- Unpack list of integers to a std::vector\ [\#1460](https://github.com/nlohmann/json/issues/1460) +- Implement DRY definition of JSON representation of a c++ class [\#1459](https://github.com/nlohmann/json/issues/1459) +- json.exception.type\_error.305 with GCC 4.9 when using C++ {} initializer [\#1458](https://github.com/nlohmann/json/issues/1458) +- API to convert an "uninitialized" json into an empty object or empty array [\#1456](https://github.com/nlohmann/json/issues/1456) +- How to parse a vector of objects with const attributes [\#1453](https://github.com/nlohmann/json/issues/1453) +- NLOHMANN\_JSON\_SERIALIZE\_ENUM potentially requires duplicate definitions [\#1450](https://github.com/nlohmann/json/issues/1450) +- Question about making json object from file directory [\#1449](https://github.com/nlohmann/json/issues/1449) +- .get\(\) throws error if used with userdefined structs in unordered\_map [\#1448](https://github.com/nlohmann/json/issues/1448) +- Integer Overflow \(OSS-Fuzz 12506\) [\#1447](https://github.com/nlohmann/json/issues/1447) +- If a string has too many invalid UTF-8 characters, json::dump attempts to index an array out of bounds. [\#1445](https://github.com/nlohmann/json/issues/1445) +- Setting values of .JSON file [\#1444](https://github.com/nlohmann/json/issues/1444) +- alias object\_t::key\_type in basic\_json [\#1442](https://github.com/nlohmann/json/issues/1442) +- Latest Ubuntu package is 2.1.1 [\#1438](https://github.com/nlohmann/json/issues/1438) +- lexer.hpp\(1363\) '\_snprintf': is not a member | Visualstudio 2017 [\#1437](https://github.com/nlohmann/json/issues/1437) +- Static method invites inadvertent logic error. [\#1433](https://github.com/nlohmann/json/issues/1433) +- EOS compilation produces "fatal error: 'nlohmann/json.hpp' file not found" [\#1432](https://github.com/nlohmann/json/issues/1432) +- Support for bad commas [\#1429](https://github.com/nlohmann/json/issues/1429) +- Please have one base exception class for all json exceptions [\#1427](https://github.com/nlohmann/json/issues/1427) +- Compilation warning: 'tuple\_size' defined as a class template here but previously declared as a struct template [\#1426](https://github.com/nlohmann/json/issues/1426) +- Which version can be used with GCC 4.8.2 ? [\#1424](https://github.com/nlohmann/json/issues/1424) +- Ignore nullptr values on constructing json object from a container [\#1422](https://github.com/nlohmann/json/issues/1422) +- Support for custom float precision via unquoted strings [\#1421](https://github.com/nlohmann/json/issues/1421) +- It is possible to call `json::find` with a json\_pointer as argument. This causes runtime UB/crash. [\#1418](https://github.com/nlohmann/json/issues/1418) +- Dump throwing exception [\#1416](https://github.com/nlohmann/json/issues/1416) +- Build error [\#1415](https://github.com/nlohmann/json/issues/1415) +- Append version to include.zip [\#1412](https://github.com/nlohmann/json/issues/1412) +- error C2039: '\_snprintf': is not a member of 'std' - Windows [\#1408](https://github.com/nlohmann/json/issues/1408) +- Deserializing to vector [\#1407](https://github.com/nlohmann/json/issues/1407) +- Efficient way to set a `json` object as value into another `json` key [\#1406](https://github.com/nlohmann/json/issues/1406) +- Document return value of parse\(\) when allow\_exceptions == false and parsing fails [\#1405](https://github.com/nlohmann/json/issues/1405) +- Unexpected behaviour with structured binding [\#1404](https://github.com/nlohmann/json/issues/1404) +- Which native types does get\\(\) allow? [\#1403](https://github.com/nlohmann/json/issues/1403) +- Add something like Json::StaticString [\#1402](https://github.com/nlohmann/json/issues/1402) +- -Wmismatched-tags in 3.5.0? [\#1401](https://github.com/nlohmann/json/issues/1401) +- Coverity Scan reports an UNCAUGHT\_EXCEPT issue [\#1400](https://github.com/nlohmann/json/issues/1400) +- fff [\#1399](https://github.com/nlohmann/json/issues/1399) +- sorry this is not an issue, just a Question, How to change a key value in a file and save it ? [\#1398](https://github.com/nlohmann/json/issues/1398) +- appveyor x64 builds appear to be using Win32 toolset [\#1374](https://github.com/nlohmann/json/issues/1374) +- Serializing/Deserializing a Class containing a vector of itself [\#1373](https://github.com/nlohmann/json/issues/1373) +- Retrieving array elements. [\#1369](https://github.com/nlohmann/json/issues/1369) +- Deserialize [\#1366](https://github.com/nlohmann/json/issues/1366) +- call of overloaded for push\_back and operator+= is ambiguous [\#1352](https://github.com/nlohmann/json/issues/1352) +- got an error and cann't figure it out [\#1351](https://github.com/nlohmann/json/issues/1351) +- Improve number-to-string conversion [\#1334](https://github.com/nlohmann/json/issues/1334) +- Implicit type conversion error on MSVC [\#1333](https://github.com/nlohmann/json/issues/1333) +- NuGet Package [\#1132](https://github.com/nlohmann/json/issues/1132) + +- Change macros to numeric\_limits [\#1514](https://github.com/nlohmann/json/pull/1514) ([naszta](https://github.com/naszta)) +- fix GCC 7.1.1 - 7.2.1 on CentOS [\#1496](https://github.com/nlohmann/json/pull/1496) ([lieff](https://github.com/lieff)) +- Update Buckaroo instructions in README.md [\#1495](https://github.com/nlohmann/json/pull/1495) ([njlr](https://github.com/njlr)) +- Fix gcc9 build error test/src/unit-allocator.cpp \(Issue \#1472\) [\#1492](https://github.com/nlohmann/json/pull/1492) ([stac47](https://github.com/stac47)) +- Fix typo in README.md [\#1491](https://github.com/nlohmann/json/pull/1491) ([nickaein](https://github.com/nickaein)) +- Do proper endian conversions [\#1489](https://github.com/nlohmann/json/pull/1489) ([andreas-schwab](https://github.com/andreas-schwab)) +- Fix documentation [\#1477](https://github.com/nlohmann/json/pull/1477) ([nickaein](https://github.com/nickaein)) +- Implement contains\(\) member function [\#1474](https://github.com/nlohmann/json/pull/1474) ([nickaein](https://github.com/nickaein)) +- Add operator/= and operator/ to construct a JSON pointer by appending two JSON pointers [\#1469](https://github.com/nlohmann/json/pull/1469) ([garethsb](https://github.com/garethsb)) +- Disable Clang -Wmismatched-tags warning on tuple\_size / tuple\_element [\#1468](https://github.com/nlohmann/json/pull/1468) ([past-due](https://github.com/past-due)) +- Disable installation when used as meson subproject. \#1463 [\#1464](https://github.com/nlohmann/json/pull/1464) ([elvisoric](https://github.com/elvisoric)) +- docs: README typo [\#1455](https://github.com/nlohmann/json/pull/1455) ([wythe](https://github.com/wythe)) +- remove extra semicolon from readme [\#1451](https://github.com/nlohmann/json/pull/1451) ([Afforix](https://github.com/Afforix)) +- attempt to fix \#1445, flush buffer in serializer::dump\_escaped in UTF8\_REJECT case. [\#1446](https://github.com/nlohmann/json/pull/1446) ([scinart](https://github.com/scinart)) +- Use C++11 features supported by CMake 3.1. [\#1441](https://github.com/nlohmann/json/pull/1441) ([iwanders](https://github.com/iwanders)) +- :rotating\_light: fixed unused variable warning [\#1435](https://github.com/nlohmann/json/pull/1435) ([pboettch](https://github.com/pboettch)) +- allow push\_back\(\) and pop\_back\(\) calls on json\_pointer [\#1434](https://github.com/nlohmann/json/pull/1434) ([pboettch](https://github.com/pboettch)) +- Add instructions about using nlohmann/json with the conda package manager [\#1430](https://github.com/nlohmann/json/pull/1430) ([nicoddemus](https://github.com/nicoddemus)) +- Updated year in README.md [\#1425](https://github.com/nlohmann/json/pull/1425) ([jef](https://github.com/jef)) +- Fixed broken links in the README file [\#1423](https://github.com/nlohmann/json/pull/1423) ([skypjack](https://github.com/skypjack)) +- Fixed broken links in the README file [\#1420](https://github.com/nlohmann/json/pull/1420) ([skypjack](https://github.com/skypjack)) +- docs: typo in README [\#1417](https://github.com/nlohmann/json/pull/1417) ([wythe](https://github.com/wythe)) +- Fix x64 target platform for appveyor [\#1414](https://github.com/nlohmann/json/pull/1414) ([nickaein](https://github.com/nickaein)) +- Improve dump\_integer performance [\#1411](https://github.com/nlohmann/json/pull/1411) ([nickaein](https://github.com/nickaein)) +- buildsystem: relax requirement on cmake version [\#1409](https://github.com/nlohmann/json/pull/1409) ([yann-morin-1998](https://github.com/yann-morin-1998)) +- CMake: Optional Install if Embedded [\#1330](https://github.com/nlohmann/json/pull/1330) ([ax3l](https://github.com/ax3l)) + +## [v3.5.0](https://github.com/nlohmann/json/releases/tag/v3.5.0) (2018-12-21) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.4.0...v3.5.0) + +- Copyconstructor inserts original into array with single element [\#1397](https://github.com/nlohmann/json/issues/1397) +- Get value without explicit typecasting [\#1395](https://github.com/nlohmann/json/issues/1395) +- Big file parsing [\#1393](https://github.com/nlohmann/json/issues/1393) +- some static analysis warning at line 11317 [\#1390](https://github.com/nlohmann/json/issues/1390) +- Adding Structured Binding Support [\#1388](https://github.com/nlohmann/json/issues/1388) +- map\ exhibits unexpected behavior [\#1387](https://github.com/nlohmann/json/issues/1387) +- Error Code Return [\#1386](https://github.com/nlohmann/json/issues/1386) +- using unordered\_map as object type [\#1385](https://github.com/nlohmann/json/issues/1385) +- float precision [\#1384](https://github.com/nlohmann/json/issues/1384) +- \[json.exception.type\_error.316\] invalid UTF-8 byte at index 1: 0xC3 [\#1383](https://github.com/nlohmann/json/issues/1383) +- Inconsistent Constructor \(GCC vs. Clang\) [\#1381](https://github.com/nlohmann/json/issues/1381) +- \#define or || [\#1379](https://github.com/nlohmann/json/issues/1379) +- How to iterate inside the values ? [\#1377](https://github.com/nlohmann/json/issues/1377) +- items\(\) unable to get the elements [\#1375](https://github.com/nlohmann/json/issues/1375) +- conversion json to std::map doesn't work for types \ [\#1372](https://github.com/nlohmann/json/issues/1372) +- A minor issue in the build instructions [\#1371](https://github.com/nlohmann/json/issues/1371) +- Using this library without stream ? [\#1370](https://github.com/nlohmann/json/issues/1370) +- Writing and reading BSON data [\#1368](https://github.com/nlohmann/json/issues/1368) +- Retrieving array elements from object type iterator. [\#1367](https://github.com/nlohmann/json/issues/1367) +- json::dump\(\) silently crashes if items contain accented letters [\#1365](https://github.com/nlohmann/json/issues/1365) +- warnings in MSVC \(2015\) in 3.4.0 related to bool... [\#1364](https://github.com/nlohmann/json/issues/1364) +- Cant compile with -C++17 and beyond compiler options [\#1362](https://github.com/nlohmann/json/issues/1362) +- json to concrete type conversion through reference or pointer fails [\#1361](https://github.com/nlohmann/json/issues/1361) +- the first attributes of JSON string is misplaced [\#1360](https://github.com/nlohmann/json/issues/1360) +- Copy-construct using initializer-list converts objects to arrays [\#1359](https://github.com/nlohmann/json/issues/1359) +- About value\(key, default\_value\) and operator\[\]\(key\) [\#1358](https://github.com/nlohmann/json/issues/1358) +- Problem with printing json response object [\#1356](https://github.com/nlohmann/json/issues/1356) +- Serializing pointer segfaults [\#1355](https://github.com/nlohmann/json/issues/1355) +- Read `long long int` data as a number. [\#1354](https://github.com/nlohmann/json/issues/1354) +- eclipse oxygen in ubuntu get\ is ambiguous [\#1353](https://github.com/nlohmann/json/issues/1353) +- Can't build on Visual Studio 2017 v15.8.9 [\#1350](https://github.com/nlohmann/json/issues/1350) +- cannot parse from string? [\#1349](https://github.com/nlohmann/json/issues/1349) +- Error: out\_of\_range [\#1348](https://github.com/nlohmann/json/issues/1348) +- expansion pattern 'CompatibleObjectType' contains no argument packs, with CUDA 10 [\#1347](https://github.com/nlohmann/json/issues/1347) +- Unable to update a value for a nested\(multi-level\) json file [\#1344](https://github.com/nlohmann/json/issues/1344) +- Fails to compile when std::iterator\_traits is not SFINAE friendly. [\#1341](https://github.com/nlohmann/json/issues/1341) +- EOF flag not set on exhausted input streams. [\#1340](https://github.com/nlohmann/json/issues/1340) +- Shadowed Member in merge\_patch [\#1339](https://github.com/nlohmann/json/issues/1339) +- Periods/literal dots in keys? [\#1338](https://github.com/nlohmann/json/issues/1338) +- Protect macro expansion of commonly defined macros [\#1337](https://github.com/nlohmann/json/issues/1337) +- How to validate an input before parsing? [\#1336](https://github.com/nlohmann/json/issues/1336) +- Non-verifying dump\(\) alternative for debugging/logging needed [\#1335](https://github.com/nlohmann/json/issues/1335) +- Json Libarary is not responding for me in c++ [\#1332](https://github.com/nlohmann/json/issues/1332) +- Question - how to find an object in an array [\#1331](https://github.com/nlohmann/json/issues/1331) +- Nesting additional data in json object [\#1328](https://github.com/nlohmann/json/issues/1328) +- can to\_json\(\) be defined inside a class? [\#1324](https://github.com/nlohmann/json/issues/1324) +- CodeBlocks IDE can't find `json.hpp` header [\#1318](https://github.com/nlohmann/json/issues/1318) +- Change json\_pointer to provide an iterator begin/end/etc, don't use vectors, and also enable string\_view [\#1312](https://github.com/nlohmann/json/issues/1312) +- Xcode - adding it to library [\#1300](https://github.com/nlohmann/json/issues/1300) +- unicode: accept char16\_t, char32\_t sequences [\#1298](https://github.com/nlohmann/json/issues/1298) +- unicode: char16\_t\* is compiler error, but char16\_t\[\] is accepted [\#1297](https://github.com/nlohmann/json/issues/1297) +- Dockerfile Project Help Needed [\#1296](https://github.com/nlohmann/json/issues/1296) +- Comparisons between large unsigned and negative signed integers [\#1295](https://github.com/nlohmann/json/issues/1295) +- CMake alias to `nlohmann::json` [\#1291](https://github.com/nlohmann/json/issues/1291) +- Release zips without tests [\#1285](https://github.com/nlohmann/json/issues/1285) +- separate object\_t::key\_type from basic\_json::key\_type, and use an allocator which returns object\_t::key\_type [\#1274](https://github.com/nlohmann/json/issues/1274) +- Is there a nice way to associate external values with json elements? [\#1256](https://github.com/nlohmann/json/issues/1256) +- Delete by json\_pointer [\#1248](https://github.com/nlohmann/json/issues/1248) +- Expose lexer, as a StAX parser [\#1219](https://github.com/nlohmann/json/issues/1219) +- Subclassing json\(\) & error on recursive load [\#1201](https://github.com/nlohmann/json/issues/1201) +- Check value for existence by json\_pointer [\#1194](https://github.com/nlohmann/json/issues/1194) + +- Feature/add file input adapter [\#1392](https://github.com/nlohmann/json/pull/1392) ([dumarjo](https://github.com/dumarjo)) +- Added Support for Structured Bindings [\#1391](https://github.com/nlohmann/json/pull/1391) ([pratikpc](https://github.com/pratikpc)) +- Link to issue \#958 broken [\#1382](https://github.com/nlohmann/json/pull/1382) ([kjpus](https://github.com/kjpus)) +- readme: fix typo [\#1380](https://github.com/nlohmann/json/pull/1380) ([manu-chroma](https://github.com/manu-chroma)) +- recommend using explicit from JSON conversions [\#1363](https://github.com/nlohmann/json/pull/1363) ([theodelrieu](https://github.com/theodelrieu)) +- Fix merge\_patch shadow warning [\#1346](https://github.com/nlohmann/json/pull/1346) ([ax3l](https://github.com/ax3l)) +- Allow installation via Meson [\#1345](https://github.com/nlohmann/json/pull/1345) ([mpoquet](https://github.com/mpoquet)) +- Set eofbit on exhausted input stream. [\#1343](https://github.com/nlohmann/json/pull/1343) ([mefyl](https://github.com/mefyl)) +- Add a SFINAE friendly iterator\_traits and use that instead. [\#1342](https://github.com/nlohmann/json/pull/1342) ([dgavedissian](https://github.com/dgavedissian)) +- Fix EOL Whitespaces & CMake Spelling [\#1329](https://github.com/nlohmann/json/pull/1329) ([ax3l](https://github.com/ax3l)) + +## [v3.4.0](https://github.com/nlohmann/json/releases/tag/v3.4.0) (2018-10-30) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.3.0...v3.4.0) + +- Big uint64\_t values are serialized wrong [\#1327](https://github.com/nlohmann/json/issues/1327) +- \[Question\] Efficient check for equivalency? [\#1325](https://github.com/nlohmann/json/issues/1325) +- Can't use ifstream and .clear\(\) [\#1321](https://github.com/nlohmann/json/issues/1321) +- \[Warning\] -Wparentheses on line 555 on single\_include [\#1319](https://github.com/nlohmann/json/issues/1319) +- Compilation error using at and find with enum struct [\#1316](https://github.com/nlohmann/json/issues/1316) +- Parsing JSON from a web address [\#1311](https://github.com/nlohmann/json/issues/1311) +- How to convert JSON to Struct with embeded subject [\#1310](https://github.com/nlohmann/json/issues/1310) +- Null safety/coalescing function? [\#1309](https://github.com/nlohmann/json/issues/1309) +- Building fails using single include file: json.hpp [\#1308](https://github.com/nlohmann/json/issues/1308) +- json::parse\(std::string\) Exception inside packaged Lib [\#1306](https://github.com/nlohmann/json/issues/1306) +- Problem in Dockerfile with installation of library [\#1304](https://github.com/nlohmann/json/issues/1304) +- compile error in from\_json converting to container with std::pair [\#1299](https://github.com/nlohmann/json/issues/1299) +- Json that I am trying to parse, and I am lost Structure Array below top level [\#1293](https://github.com/nlohmann/json/issues/1293) +- Serializing std::variant causes stack overflow [\#1292](https://github.com/nlohmann/json/issues/1292) +- How do I go about customising from\_json to support \_\_int128\_t/\_\_uint128\_t? [\#1290](https://github.com/nlohmann/json/issues/1290) +- merge\_patch: inconsistent behaviour merging empty sub-object [\#1289](https://github.com/nlohmann/json/issues/1289) +- Buffer over/underrun using UBJson? [\#1288](https://github.com/nlohmann/json/issues/1288) +- Enable the latest C++ standard with Visual Studio [\#1287](https://github.com/nlohmann/json/issues/1287) +- truncation of constant value in to\_cbor\(\) [\#1286](https://github.com/nlohmann/json/issues/1286) +- eosio.wasmsdk error [\#1284](https://github.com/nlohmann/json/issues/1284) +- use the same interface for writing arrays and non-arrays [\#1283](https://github.com/nlohmann/json/issues/1283) +- How to read json file with optional entries and entries with different types [\#1281](https://github.com/nlohmann/json/issues/1281) +- merge result not as espected [\#1279](https://github.com/nlohmann/json/issues/1279) +- how to get only "name" from below json [\#1278](https://github.com/nlohmann/json/issues/1278) +- syntax error on right json string [\#1276](https://github.com/nlohmann/json/issues/1276) +- Parsing JSON Array where members have no key, using custom types [\#1267](https://github.com/nlohmann/json/issues/1267) +- I get a json exception periodically from json::parse for the same json [\#1263](https://github.com/nlohmann/json/issues/1263) +- serialize std::variant\<...\> [\#1261](https://github.com/nlohmann/json/issues/1261) +- GCC 8.2.1. Compilation error: invalid conversion from... [\#1246](https://github.com/nlohmann/json/issues/1246) +- BSON support [\#1244](https://github.com/nlohmann/json/issues/1244) +- enum to json mapping [\#1208](https://github.com/nlohmann/json/issues/1208) +- Soften the landing when dumping non-UTF8 strings \(type\_error.316 exception\) [\#1198](https://github.com/nlohmann/json/issues/1198) + +- Add macro to define enum/JSON mapping [\#1323](https://github.com/nlohmann/json/pull/1323) ([nlohmann](https://github.com/nlohmann)) +- Add BSON support [\#1320](https://github.com/nlohmann/json/pull/1320) ([nlohmann](https://github.com/nlohmann)) +- Properly convert constants to CharType [\#1315](https://github.com/nlohmann/json/pull/1315) ([nlohmann](https://github.com/nlohmann)) +- Allow to set error handler for decoding errors [\#1314](https://github.com/nlohmann/json/pull/1314) ([nlohmann](https://github.com/nlohmann)) +- Add Meson related info to README [\#1305](https://github.com/nlohmann/json/pull/1305) ([koponomarenko](https://github.com/koponomarenko)) +- Improve diagnostic messages for binary formats [\#1303](https://github.com/nlohmann/json/pull/1303) ([nlohmann](https://github.com/nlohmann)) +- add new is\_constructible\_\* traits used in from\_json [\#1301](https://github.com/nlohmann/json/pull/1301) ([theodelrieu](https://github.com/theodelrieu)) +- add constraints for variadic json\_ref constructors [\#1294](https://github.com/nlohmann/json/pull/1294) ([theodelrieu](https://github.com/theodelrieu)) +- Improve diagnostic messages [\#1282](https://github.com/nlohmann/json/pull/1282) ([nlohmann](https://github.com/nlohmann)) +- Removed linter warnings [\#1280](https://github.com/nlohmann/json/pull/1280) ([nlohmann](https://github.com/nlohmann)) +- Thirdparty benchmark: Fix Clang detection. [\#1277](https://github.com/nlohmann/json/pull/1277) ([Lord-Kamina](https://github.com/Lord-Kamina)) + +## [v3.3.0](https://github.com/nlohmann/json/releases/tag/v3.3.0) (2018-10-05) + +[Full Changelog](https://github.com/nlohmann/json/compare/3.3.0...v3.3.0) + +- Fix warning C4127: conditional expression is constant [\#1272](https://github.com/nlohmann/json/pull/1272) ([antonioborondo](https://github.com/antonioborondo)) +- Turn off additional deprecation warnings for GCC. [\#1271](https://github.com/nlohmann/json/pull/1271) ([chuckatkins](https://github.com/chuckatkins)) +- docs: Add additional CMake documentation [\#1270](https://github.com/nlohmann/json/pull/1270) ([chuckatkins](https://github.com/chuckatkins)) +- unit-testsuites.cpp: fix hangup if file not found [\#1262](https://github.com/nlohmann/json/pull/1262) ([knilch0r](https://github.com/knilch0r)) +- Fix broken cmake imported target alias [\#1260](https://github.com/nlohmann/json/pull/1260) ([chuckatkins](https://github.com/chuckatkins)) +- GCC 48 [\#1257](https://github.com/nlohmann/json/pull/1257) ([henryiii](https://github.com/henryiii)) +- Add version and license to meson.build [\#1252](https://github.com/nlohmann/json/pull/1252) ([koponomarenko](https://github.com/koponomarenko)) +- \#1179 Reordered the code. It seems to stop clang 3.4.2 in RHEL 7 from crash… [\#1249](https://github.com/nlohmann/json/pull/1249) ([LEgregius](https://github.com/LEgregius)) +- Use a version check to provide backwards comatible CMake imported target names [\#1245](https://github.com/nlohmann/json/pull/1245) ([chuckatkins](https://github.com/chuckatkins)) +- Fix issue \#1237 [\#1238](https://github.com/nlohmann/json/pull/1238) ([theodelrieu](https://github.com/theodelrieu)) +- Add a get overload taking a parameter. [\#1231](https://github.com/nlohmann/json/pull/1231) ([theodelrieu](https://github.com/theodelrieu)) +- Move lambda out of unevaluated context [\#1230](https://github.com/nlohmann/json/pull/1230) ([mandreyel](https://github.com/mandreyel)) +- Remove static asserts [\#1228](https://github.com/nlohmann/json/pull/1228) ([theodelrieu](https://github.com/theodelrieu)) +- Better error 305 [\#1221](https://github.com/nlohmann/json/pull/1221) ([rivertam](https://github.com/rivertam)) +- Fix \#1213 [\#1214](https://github.com/nlohmann/json/pull/1214) ([simnalamburt](https://github.com/simnalamburt)) +- Export package to allow builds without installing [\#1202](https://github.com/nlohmann/json/pull/1202) ([dennisfischer](https://github.com/dennisfischer)) + +## [3.3.0](https://github.com/nlohmann/json/releases/tag/3.3.0) (2018-10-05) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.2.0...3.3.0) + +- When key is not found print the key name into error too [\#1273](https://github.com/nlohmann/json/issues/1273) +- Visual Studio 2017 15.8.5 "conditional expression is constant" warning on Line 1851 in json.hpp [\#1268](https://github.com/nlohmann/json/issues/1268) +- how can we get this working on WSL? [\#1264](https://github.com/nlohmann/json/issues/1264) +- Help needed [\#1259](https://github.com/nlohmann/json/issues/1259) +- A way to get to a JSON values "key" [\#1258](https://github.com/nlohmann/json/issues/1258) +- While compiling got 76 errors [\#1255](https://github.com/nlohmann/json/issues/1255) +- Two blackslashes on json output file [\#1253](https://github.com/nlohmann/json/issues/1253) +- Including nlohmann the badwrong way. [\#1250](https://github.com/nlohmann/json/issues/1250) +- how to build with clang? [\#1247](https://github.com/nlohmann/json/issues/1247) +- Cmake target\_link\_libraries unable to find nlohmann\_json since version 3.2.0 [\#1243](https://github.com/nlohmann/json/issues/1243) +- \[Question\] Access to end\(\) iterator reference [\#1242](https://github.com/nlohmann/json/issues/1242) +- Parsing different json format [\#1241](https://github.com/nlohmann/json/issues/1241) +- Parsing Multiple JSON Files [\#1240](https://github.com/nlohmann/json/issues/1240) +- Doesn't compile under C++17 [\#1239](https://github.com/nlohmann/json/issues/1239) +- Conversion operator for nlohmann::json is not SFINAE friendly [\#1237](https://github.com/nlohmann/json/issues/1237) +- Custom deserialization of number\_float\_t [\#1236](https://github.com/nlohmann/json/issues/1236) +- deprecated-declarations warnings when compiling tests with GCC 8.2.1. [\#1233](https://github.com/nlohmann/json/issues/1233) +- Incomplete type with json\_fwd.hpp [\#1232](https://github.com/nlohmann/json/issues/1232) +- Parse Error [\#1229](https://github.com/nlohmann/json/issues/1229) +- json::get function with argument [\#1227](https://github.com/nlohmann/json/issues/1227) +- questions regarding from\_json [\#1226](https://github.com/nlohmann/json/issues/1226) +- Lambda in unevaluated context [\#1225](https://github.com/nlohmann/json/issues/1225) +- NLohmann doesn't compile when enabling strict warning policies [\#1224](https://github.com/nlohmann/json/issues/1224) +- Creating array of objects [\#1223](https://github.com/nlohmann/json/issues/1223) +- Somewhat unhelpful error message "cannot use operator\[\] with object" [\#1220](https://github.com/nlohmann/json/issues/1220) +- single\_include json.hpp [\#1218](https://github.com/nlohmann/json/issues/1218) +- Maps with enum class keys which are convertible to JSON strings should be converted to JSON dictionaries [\#1217](https://github.com/nlohmann/json/issues/1217) +- Adding JSON Array to the Array [\#1216](https://github.com/nlohmann/json/issues/1216) +- Best way to output a vector of a given type to json [\#1215](https://github.com/nlohmann/json/issues/1215) +- compiler warning: double definition of macro JSON\_INTERNAL\_CATCH [\#1213](https://github.com/nlohmann/json/issues/1213) +- Compilation error when using MOCK\_METHOD1 from GMock and nlohmann::json [\#1212](https://github.com/nlohmann/json/issues/1212) +- Issues parsing a previously encoded binary \(non-UTF8\) string. [\#1211](https://github.com/nlohmann/json/issues/1211) +- Yet another ordering question: char \* and parse\(\) [\#1209](https://github.com/nlohmann/json/issues/1209) +- Error using gcc 8.1.0 on Ubuntu 14.04 [\#1207](https://github.com/nlohmann/json/issues/1207) +- "type must be string, but is " std::string\(j.type\_name\(\) [\#1206](https://github.com/nlohmann/json/issues/1206) +- Returning empty json object from a function of type const json& ? [\#1205](https://github.com/nlohmann/json/issues/1205) +- VS2017 compiler suggests using constexpr if [\#1204](https://github.com/nlohmann/json/issues/1204) +- Template instatiation error on compiling [\#1203](https://github.com/nlohmann/json/issues/1203) +- BUG - json dump field with unicode -\> array of ints \(instead of string\) [\#1197](https://github.com/nlohmann/json/issues/1197) +- Compile error using Code::Blocks // mingw-w64 GCC 8.1.0 - "Incomplete Type" [\#1193](https://github.com/nlohmann/json/issues/1193) +- SEGFAULT on arm target [\#1190](https://github.com/nlohmann/json/issues/1190) +- Compiler crash with old Clang [\#1179](https://github.com/nlohmann/json/issues/1179) +- Custom Precision on floating point numbers [\#1170](https://github.com/nlohmann/json/issues/1170) +- Can we have a json\_view class like std::string\_view? [\#1158](https://github.com/nlohmann/json/issues/1158) +- improve error handling [\#1152](https://github.com/nlohmann/json/issues/1152) +- We should remove static\_asserts [\#960](https://github.com/nlohmann/json/issues/960) + +## [v3.2.0](https://github.com/nlohmann/json/releases/tag/v3.2.0) (2018-08-20) + +[Full Changelog](https://github.com/nlohmann/json/compare/3.2.0...v3.2.0) + +- Fix -Wno-sometimes-uninitialized by initializing "result" in parse\_sax [\#1200](https://github.com/nlohmann/json/pull/1200) ([thyu](https://github.com/thyu)) +- \[RFC\] Introduce a new macro function: JSON\_INTERNAL\_CATCH [\#1187](https://github.com/nlohmann/json/pull/1187) ([simnalamburt](https://github.com/simnalamburt)) +- Fix unit tests that were silently skipped or crashed \(depending on the compiler\) [\#1176](https://github.com/nlohmann/json/pull/1176) ([grembo](https://github.com/grembo)) +- Refactor/no virtual sax [\#1153](https://github.com/nlohmann/json/pull/1153) ([theodelrieu](https://github.com/theodelrieu)) +- Fixed compiler error in VS 2015 for debug mode [\#1151](https://github.com/nlohmann/json/pull/1151) ([sonulohani](https://github.com/sonulohani)) +- Fix links to cppreference named requirements \(formerly concepts\) [\#1144](https://github.com/nlohmann/json/pull/1144) ([jrakow](https://github.com/jrakow)) +- meson: fix include directory [\#1142](https://github.com/nlohmann/json/pull/1142) ([jrakow](https://github.com/jrakow)) +- Feature/unordered map conversion [\#1138](https://github.com/nlohmann/json/pull/1138) ([theodelrieu](https://github.com/theodelrieu)) +- fixed compile error for \#1045 [\#1134](https://github.com/nlohmann/json/pull/1134) ([Daniel599](https://github.com/Daniel599)) +- test \(non\)equality for alt\_string implementation [\#1130](https://github.com/nlohmann/json/pull/1130) ([agrianius](https://github.com/agrianius)) +- remove stringstream dependency [\#1117](https://github.com/nlohmann/json/pull/1117) ([TinyTinni](https://github.com/TinyTinni)) +- Provide a from\_json overload for std::map [\#1089](https://github.com/nlohmann/json/pull/1089) ([theodelrieu](https://github.com/theodelrieu)) +- fix typo in README [\#1078](https://github.com/nlohmann/json/pull/1078) ([martin-mfg](https://github.com/martin-mfg)) +- Fix typo [\#1058](https://github.com/nlohmann/json/pull/1058) ([dns13](https://github.com/dns13)) +- Misc cmake packaging enhancements [\#1048](https://github.com/nlohmann/json/pull/1048) ([chuckatkins](https://github.com/chuckatkins)) +- Fixed incorrect LLVM version number in README [\#1047](https://github.com/nlohmann/json/pull/1047) ([jammehcow](https://github.com/jammehcow)) +- Fix trivial typo in comment. [\#1043](https://github.com/nlohmann/json/pull/1043) ([coryan](https://github.com/coryan)) +- Package Manager: Spack [\#1041](https://github.com/nlohmann/json/pull/1041) ([ax3l](https://github.com/ax3l)) +- CMake: 3.8+ is Sufficient [\#1040](https://github.com/nlohmann/json/pull/1040) ([ax3l](https://github.com/ax3l)) +- Added support for string\_view in C++17 [\#1028](https://github.com/nlohmann/json/pull/1028) ([gracicot](https://github.com/gracicot)) +- Added public target\_compile\_features for auto and constexpr [\#1026](https://github.com/nlohmann/json/pull/1026) ([ktonon](https://github.com/ktonon)) + +## [3.2.0](https://github.com/nlohmann/json/releases/tag/3.2.0) (2018-08-20) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.1.2...3.2.0) + +- Am I doing this wrong? Getting an empty string [\#1199](https://github.com/nlohmann/json/issues/1199) +- Incompatible Pointer Type [\#1196](https://github.com/nlohmann/json/issues/1196) +- json.exception.type\_error.316 [\#1195](https://github.com/nlohmann/json/issues/1195) +- Strange warnings in Code::Blocks 17.12, GNU GCC [\#1192](https://github.com/nlohmann/json/issues/1192) +- \[Question\] Current place in code to change floating point resolution [\#1191](https://github.com/nlohmann/json/issues/1191) +- Add key name when throwing type error [\#1189](https://github.com/nlohmann/json/issues/1189) +- Not able to include in visual studio code? [\#1188](https://github.com/nlohmann/json/issues/1188) +- Get an Index or row number of an element [\#1186](https://github.com/nlohmann/json/issues/1186) +- Difference between `merge_patch` and `update` [\#1183](https://github.com/nlohmann/json/issues/1183) +- Is there a way to get an element from a JSON without throwing an exception on failure? [\#1182](https://github.com/nlohmann/json/issues/1182) +- to\_string? [\#1181](https://github.com/nlohmann/json/issues/1181) +- How to cache a json object's pointer into a map? [\#1180](https://github.com/nlohmann/json/issues/1180) +- Can this library work within a Qt project for Android using Qt Creator? [\#1178](https://github.com/nlohmann/json/issues/1178) +- How to get all keys of one object? [\#1177](https://github.com/nlohmann/json/issues/1177) +- How can I only parse the first level and get the value as string? [\#1175](https://github.com/nlohmann/json/issues/1175) +- I have a query regarding nlohmann::basic\_json::basic\_json [\#1174](https://github.com/nlohmann/json/issues/1174) +- unordered\_map with vectors won't convert to json? [\#1173](https://github.com/nlohmann/json/issues/1173) +- return json objects from functions [\#1172](https://github.com/nlohmann/json/issues/1172) +- Problem when exporting to CBOR [\#1171](https://github.com/nlohmann/json/issues/1171) +- Roundtripping null to nullptr does not work [\#1169](https://github.com/nlohmann/json/issues/1169) +- MSVC fails to compile std::swap specialization for nlohmann::json [\#1168](https://github.com/nlohmann/json/issues/1168) +- Unexpected behaviour of is\_null - Part II [\#1167](https://github.com/nlohmann/json/issues/1167) +- Floating point imprecision [\#1166](https://github.com/nlohmann/json/issues/1166) +- Combine json objects into one? [\#1165](https://github.com/nlohmann/json/issues/1165) +- Is there any way to know if the object has changed? [\#1164](https://github.com/nlohmann/json/issues/1164) +- Value throws on null string [\#1163](https://github.com/nlohmann/json/issues/1163) +- Weird template issue in large project [\#1162](https://github.com/nlohmann/json/issues/1162) +- \_json returns a different result vs ::parse [\#1161](https://github.com/nlohmann/json/issues/1161) +- Showing difference between two json objects [\#1160](https://github.com/nlohmann/json/issues/1160) +- no instance of overloaded function "std::swap" matches the specified type [\#1159](https://github.com/nlohmann/json/issues/1159) +- resize\(...\)? [\#1157](https://github.com/nlohmann/json/issues/1157) +- Issue with struct nested in class' to\_json [\#1155](https://github.com/nlohmann/json/issues/1155) +- Deserialize std::map with std::nan [\#1154](https://github.com/nlohmann/json/issues/1154) +- Parse throwing errors [\#1149](https://github.com/nlohmann/json/issues/1149) +- cocoapod integration [\#1148](https://github.com/nlohmann/json/issues/1148) +- wstring parsing [\#1147](https://github.com/nlohmann/json/issues/1147) +- Is it possible to dump a two-dimensional array to "\[\[null\],\[1,2,3\]\]"? [\#1146](https://github.com/nlohmann/json/issues/1146) +- Want to write a class member variable and a struct variable \( this structure is inside the class\) to the json file [\#1145](https://github.com/nlohmann/json/issues/1145) +- Does json support converting an instance of a struct into json string? [\#1143](https://github.com/nlohmann/json/issues/1143) +- \#Most efficient way to search for child parameters \(recursive find?\) [\#1141](https://github.com/nlohmann/json/issues/1141) +- could not find to\_json\(\) method in T's namespace [\#1140](https://github.com/nlohmann/json/issues/1140) +- chars get treated as JSON numbers not JSON strings [\#1139](https://github.com/nlohmann/json/issues/1139) +- How do I count number of objects in array? [\#1137](https://github.com/nlohmann/json/issues/1137) +- Serializing a vector of classes? [\#1136](https://github.com/nlohmann/json/issues/1136) +- Compile error. Unable convert form nullptr to nullptr&& [\#1135](https://github.com/nlohmann/json/issues/1135) +- std::unordered\_map in struct, serialization [\#1133](https://github.com/nlohmann/json/issues/1133) +- dump\(\) can't handle umlauts [\#1131](https://github.com/nlohmann/json/issues/1131) +- Add a way to get a key reference from the iterator [\#1127](https://github.com/nlohmann/json/issues/1127) +- can't not parse "\\“ string [\#1123](https://github.com/nlohmann/json/issues/1123) +- if json file contain Internationalization chars , get exception [\#1122](https://github.com/nlohmann/json/issues/1122) +- How to use a json::iterator dereferenced value in code? [\#1120](https://github.com/nlohmann/json/issues/1120) +- Disable implicit conversions from json to std::initializer\_list\ for any T [\#1118](https://github.com/nlohmann/json/issues/1118) +- Implicit conversions to complex types can lead to surprising and confusing errors [\#1116](https://github.com/nlohmann/json/issues/1116) +- How can I write from\_json for a complex datatype that is not default constructible? [\#1115](https://github.com/nlohmann/json/issues/1115) +- Compile error in VS2015 when compiling unit-conversions.cpp [\#1114](https://github.com/nlohmann/json/issues/1114) +- ADL Serializer for std::any / boost::any [\#1113](https://github.com/nlohmann/json/issues/1113) +- Unexpected behaviour of is\_null [\#1112](https://github.com/nlohmann/json/issues/1112) +- How to resolve " undefined reference to `std::\_\_throw\_bad\_cast\(\)'" [\#1111](https://github.com/nlohmann/json/issues/1111) +- cannot compile on ubuntu 18.04 and 16.04 [\#1110](https://github.com/nlohmann/json/issues/1110) +- JSON representation for floating point values has too many digits [\#1109](https://github.com/nlohmann/json/issues/1109) +- Not working for classes containing "\_declspec\(dllimport\)" in their declaration [\#1108](https://github.com/nlohmann/json/issues/1108) +- Get keys from json object [\#1107](https://github.com/nlohmann/json/issues/1107) +- Cannot deserialize types using std::ratio [\#1105](https://github.com/nlohmann/json/issues/1105) +- i want to learn json [\#1104](https://github.com/nlohmann/json/issues/1104) +- Type checking during compile [\#1103](https://github.com/nlohmann/json/issues/1103) +- Iterate through sub items [\#1102](https://github.com/nlohmann/json/issues/1102) +- cppcheck failing for version 3.1.2 [\#1101](https://github.com/nlohmann/json/issues/1101) +- Deserializing std::map [\#1100](https://github.com/nlohmann/json/issues/1100) +- accessing key by reference [\#1098](https://github.com/nlohmann/json/issues/1098) +- clang 3.8.0 croaks while trying to compile with debug symbols [\#1097](https://github.com/nlohmann/json/issues/1097) +- Serialize a list of class objects with json [\#1096](https://github.com/nlohmann/json/issues/1096) +- Small question [\#1094](https://github.com/nlohmann/json/issues/1094) +- Upgrading to 3.x: to\_/from\_json with enum class [\#1093](https://github.com/nlohmann/json/issues/1093) +- Q: few questions about json construction [\#1092](https://github.com/nlohmann/json/issues/1092) +- general crayCC compilation failure [\#1091](https://github.com/nlohmann/json/issues/1091) +- Merge Patch clears original data [\#1090](https://github.com/nlohmann/json/issues/1090) +- \[Question\] how to use nlohmann/json in c++? [\#1088](https://github.com/nlohmann/json/issues/1088) +- C++17 decomposition declaration support [\#1087](https://github.com/nlohmann/json/issues/1087) +- \[Question\] Access multi-level json objects [\#1086](https://github.com/nlohmann/json/issues/1086) +- Serializing vector [\#1085](https://github.com/nlohmann/json/issues/1085) +- update nested value in multi hierarchy json object [\#1084](https://github.com/nlohmann/json/issues/1084) +- Overriding default values? [\#1083](https://github.com/nlohmann/json/issues/1083) +- detail namespace collision with Cereal? [\#1082](https://github.com/nlohmann/json/issues/1082) +- Error using json.dump\(\); [\#1081](https://github.com/nlohmann/json/issues/1081) +- Consuming TCP Stream [\#1080](https://github.com/nlohmann/json/issues/1080) +- Compilation error with strong typed enums in map in combination with namespaces [\#1079](https://github.com/nlohmann/json/issues/1079) +- cassert error [\#1076](https://github.com/nlohmann/json/issues/1076) +- Valid json data not being parsed [\#1075](https://github.com/nlohmann/json/issues/1075) +- Feature request :: Better testing for key existance without try/catch [\#1074](https://github.com/nlohmann/json/issues/1074) +- Hi, I have input like a.b.c and want to convert it to \"a\"{\"b\": \"c\"} form. Any suggestions how do I do this? Thanks. [\#1073](https://github.com/nlohmann/json/issues/1073) +- ADL deserializer not picked up for non default-constructible type [\#1072](https://github.com/nlohmann/json/issues/1072) +- Deserializing std::array doesn't compiler \(no insert\(\)\) [\#1071](https://github.com/nlohmann/json/issues/1071) +- Serializing OpenCV Mat problem [\#1070](https://github.com/nlohmann/json/issues/1070) +- Compilation error with ICPC compiler [\#1068](https://github.com/nlohmann/json/issues/1068) +- Not existing value, crash [\#1065](https://github.com/nlohmann/json/issues/1065) +- cyryllic symbols [\#1064](https://github.com/nlohmann/json/issues/1064) +- newbie usage question [\#1063](https://github.com/nlohmann/json/issues/1063) +- Trying j\["strTest"\] = "%A" produces "strTest": "-0X1.CCCCCCCCCCCCCP+205" [\#1062](https://github.com/nlohmann/json/issues/1062) +- convert json value to std::string??? [\#1061](https://github.com/nlohmann/json/issues/1061) +- Commented out test cases, should they be removed? [\#1060](https://github.com/nlohmann/json/issues/1060) +- different behaviour between clang and gcc with braced initialization [\#1059](https://github.com/nlohmann/json/issues/1059) +- json array: initialize with prescribed size and `resize` method. [\#1057](https://github.com/nlohmann/json/issues/1057) +- Is it possible to use exceptions istead of assertions? [\#1056](https://github.com/nlohmann/json/issues/1056) +- when using assign operator in with json object a static assertion fails.. [\#1055](https://github.com/nlohmann/json/issues/1055) +- Iterate over leafs of a JSON data structure: enrich the JSON pointer API [\#1054](https://github.com/nlohmann/json/issues/1054) +- \[Feature request\] Access by path [\#1053](https://github.com/nlohmann/json/issues/1053) +- document that implicit js -\> primitive conversion does not work for std::string::value\_type and why [\#1052](https://github.com/nlohmann/json/issues/1052) +- error: ‘BasicJsonType’ in namespace ‘::’ does not name a type [\#1051](https://github.com/nlohmann/json/issues/1051) +- Destructor is called when filling object through assignement [\#1050](https://github.com/nlohmann/json/issues/1050) +- Is this thing thread safe for reads? [\#1049](https://github.com/nlohmann/json/issues/1049) +- clang-tidy: Call to virtual function during construction [\#1046](https://github.com/nlohmann/json/issues/1046) +- Using STL algorithms with JSON containers with expected results? [\#1045](https://github.com/nlohmann/json/issues/1045) +- Usage with gtest/gmock not working as expected [\#1044](https://github.com/nlohmann/json/issues/1044) +- Consequences of from\_json / to\_json being in namespace of data struct. [\#1042](https://github.com/nlohmann/json/issues/1042) +- const\_reference operator\[\]\(const typename object\_t::key\_type& key\) const throw instead of assert [\#1039](https://github.com/nlohmann/json/issues/1039) +- Trying to retrieve data from nested objects [\#1038](https://github.com/nlohmann/json/issues/1038) +- Direct download link for json\_fwd.hpp? [\#1037](https://github.com/nlohmann/json/issues/1037) +- I know the library supports UTF-8, but failed to dump the value [\#1036](https://github.com/nlohmann/json/issues/1036) +- Putting a Vec3-like vector into a json object [\#1035](https://github.com/nlohmann/json/issues/1035) +- Ternary operator crash [\#1034](https://github.com/nlohmann/json/issues/1034) +- Issued with Clion Inspection Resolution since 2018.1 [\#1033](https://github.com/nlohmann/json/issues/1033) +- Some testcases fail and one never finishes [\#1032](https://github.com/nlohmann/json/issues/1032) +- Can this class work with wchar\_t / std::wstring? [\#1031](https://github.com/nlohmann/json/issues/1031) +- Makefile: Valgrind flags have no effect [\#1030](https://github.com/nlohmann/json/issues/1030) +- 「==」 Should be 「\>」 [\#1029](https://github.com/nlohmann/json/issues/1029) +- HOCON reader? [\#1027](https://github.com/nlohmann/json/issues/1027) +- add json string in previous string?? [\#1025](https://github.com/nlohmann/json/issues/1025) +- RFC: fluent parsing interface [\#1023](https://github.com/nlohmann/json/issues/1023) +- Does it support chinese character? [\#1022](https://github.com/nlohmann/json/issues/1022) +- to/from\_msgpack only works with standard typization [\#1021](https://github.com/nlohmann/json/issues/1021) +- Build failure using latest clang and GCC compilers [\#1020](https://github.com/nlohmann/json/issues/1020) +- can two json objects be concatenated? [\#1019](https://github.com/nlohmann/json/issues/1019) +- Erase by integer index [\#1018](https://github.com/nlohmann/json/issues/1018) +- Function find overload taking a json\_pointer [\#1017](https://github.com/nlohmann/json/issues/1017) +- I think should implement an parser function [\#1016](https://github.com/nlohmann/json/issues/1016) +- Readme gif [\#1015](https://github.com/nlohmann/json/issues/1015) +- Python bindings [\#1014](https://github.com/nlohmann/json/issues/1014) +- how to add two json string in single object?? [\#1012](https://github.com/nlohmann/json/issues/1012) +- how to serialize class Object \(convert data in object into json\)?? [\#1011](https://github.com/nlohmann/json/issues/1011) +- Enable forward declaration of json by making json a class instead of a using declaration [\#997](https://github.com/nlohmann/json/issues/997) +- compilation error while using intel c++ compiler 2018 [\#994](https://github.com/nlohmann/json/issues/994) +- How to create a json variable? [\#990](https://github.com/nlohmann/json/issues/990) +- istream \>\> json --- 1st character skipped in stream [\#976](https://github.com/nlohmann/json/issues/976) +- Add a SAX parser [\#971](https://github.com/nlohmann/json/issues/971) +- How to solve large json file? [\#927](https://github.com/nlohmann/json/issues/927) +- json\_pointer public push\_back, pop\_back [\#837](https://github.com/nlohmann/json/issues/837) +- Using input\_adapter in a slightly unexpected way [\#834](https://github.com/nlohmann/json/issues/834) + +## [v3.1.2](https://github.com/nlohmann/json/releases/tag/v3.1.2) (2018-03-14) + +[Full Changelog](https://github.com/nlohmann/json/compare/3.1.2...v3.1.2) + +- Allowing for user-defined string type in lexer/parser [\#1009](https://github.com/nlohmann/json/pull/1009) ([nlohmann](https://github.com/nlohmann)) +- dump to alternative string type, as defined in basic\_json template [\#1006](https://github.com/nlohmann/json/pull/1006) ([agrianius](https://github.com/agrianius)) +- Fix memory leak during parser callback [\#1001](https://github.com/nlohmann/json/pull/1001) ([nlohmann](https://github.com/nlohmann)) +- fixed misprinted condition detected by PVS Studio. [\#992](https://github.com/nlohmann/json/pull/992) ([bogemic](https://github.com/bogemic)) +- Fix/basic json conversion [\#986](https://github.com/nlohmann/json/pull/986) ([theodelrieu](https://github.com/theodelrieu)) +- Make integration section concise [\#981](https://github.com/nlohmann/json/pull/981) ([wla80](https://github.com/wla80)) + +## [3.1.2](https://github.com/nlohmann/json/releases/tag/3.1.2) (2018-03-14) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.1.1...3.1.2) + +- STL containers are always serialized to a nested array like \[\[1,2,3\]\] [\#1013](https://github.com/nlohmann/json/issues/1013) +- The library doesn't want to insert an unordered\_map [\#1010](https://github.com/nlohmann/json/issues/1010) +- Convert Json to uint8\_t [\#1008](https://github.com/nlohmann/json/issues/1008) +- How to compare two JSON objects? [\#1007](https://github.com/nlohmann/json/issues/1007) +- Syntax checking [\#1003](https://github.com/nlohmann/json/issues/1003) +- more than one operator '=' matches these operands [\#1002](https://github.com/nlohmann/json/issues/1002) +- How to check if key existed [\#1000](https://github.com/nlohmann/json/issues/1000) +- nlohmann::json::parse exhaust memory in go binding [\#999](https://github.com/nlohmann/json/issues/999) +- Range-based iteration over a non-array object [\#998](https://github.com/nlohmann/json/issues/998) +- get\ for types that are not default constructible [\#996](https://github.com/nlohmann/json/issues/996) +- Prevent Null values to appear in .dump\(\) [\#995](https://github.com/nlohmann/json/issues/995) +- number parsing [\#993](https://github.com/nlohmann/json/issues/993) +- C2664 \(C++/CLR\) cannot convert 'nullptr' to 'nullptr &&' [\#987](https://github.com/nlohmann/json/issues/987) +- Uniform initialization from another json object differs between gcc and clang. [\#985](https://github.com/nlohmann/json/issues/985) +- Problem with adding the lib as a submodule [\#983](https://github.com/nlohmann/json/issues/983) +- UTF-8/Unicode error [\#982](https://github.com/nlohmann/json/issues/982) +- "forcing MSVC stacktrace to show which T we're talking about." error [\#980](https://github.com/nlohmann/json/issues/980) +- reverse order of serialization [\#979](https://github.com/nlohmann/json/issues/979) +- Assigning between different json types [\#977](https://github.com/nlohmann/json/issues/977) +- Support serialisation of `unique_ptr<>` and `shared_ptr<>` [\#975](https://github.com/nlohmann/json/issues/975) +- Unexpected end of input \(not same as one before\) [\#974](https://github.com/nlohmann/json/issues/974) +- Segfault on direct initializing json object [\#973](https://github.com/nlohmann/json/issues/973) +- Segmentation fault on G++ when trying to assign json string literal to custom json type. [\#972](https://github.com/nlohmann/json/issues/972) +- os\_defines.h:44:19: error: missing binary operator before token "\(" [\#970](https://github.com/nlohmann/json/issues/970) +- Passing an iteration object by reference to a function [\#967](https://github.com/nlohmann/json/issues/967) +- Json and fmt::lib's format\_arg\(\) [\#964](https://github.com/nlohmann/json/issues/964) + +## [v3.1.1](https://github.com/nlohmann/json/releases/tag/v3.1.1) (2018-02-13) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.1.0...v3.1.1) + +- Updation of child object isn't reflected in parent Object [\#968](https://github.com/nlohmann/json/issues/968) +- How to add user defined C++ path to sublime text [\#966](https://github.com/nlohmann/json/issues/966) +- fast number parsing [\#965](https://github.com/nlohmann/json/issues/965) +- With non-unique keys, later stored entries are not taken into account anymore [\#963](https://github.com/nlohmann/json/issues/963) +- Timeout \(OSS-Fuzz 6034\) [\#962](https://github.com/nlohmann/json/issues/962) +- Incorrect parsing of indefinite length CBOR strings. [\#961](https://github.com/nlohmann/json/issues/961) +- Reload a json file at runtime without emptying my std::ifstream [\#959](https://github.com/nlohmann/json/issues/959) +- Split headers should be part of the release [\#956](https://github.com/nlohmann/json/issues/956) +- Coveralls shows no coverage data [\#953](https://github.com/nlohmann/json/issues/953) +- Feature request: Implicit conversion to bool [\#951](https://github.com/nlohmann/json/issues/951) +- converting json to vector of type with templated constructor [\#924](https://github.com/nlohmann/json/issues/924) +- No structured bindings support? [\#901](https://github.com/nlohmann/json/issues/901) +- \[Request\] Macro generating from\_json\(\) and to\_json\(\) [\#895](https://github.com/nlohmann/json/issues/895) +- basic\_json::value throws exception instead of returning default value [\#871](https://github.com/nlohmann/json/issues/871) + +- Fix constraints on from\_json\(CompatibleArrayType\) [\#969](https://github.com/nlohmann/json/pull/969) ([theodelrieu](https://github.com/theodelrieu)) +- Make coveralls watch the include folder [\#957](https://github.com/nlohmann/json/pull/957) ([theodelrieu](https://github.com/theodelrieu)) +- Fix links in README.md [\#955](https://github.com/nlohmann/json/pull/955) ([patrikhuber](https://github.com/patrikhuber)) +- Add a note about installing the library with cget [\#954](https://github.com/nlohmann/json/pull/954) ([pfultz2](https://github.com/pfultz2)) + +## [v3.1.0](https://github.com/nlohmann/json/releases/tag/v3.1.0) (2018-02-01) + +[Full Changelog](https://github.com/nlohmann/json/compare/3.1.0...v3.1.0) + +- Templatize std::string in binary\_reader \#941 [\#950](https://github.com/nlohmann/json/pull/950) ([kaidokert](https://github.com/kaidokert)) +- fix cmake install directory \(for real this time\) [\#944](https://github.com/nlohmann/json/pull/944) ([theodelrieu](https://github.com/theodelrieu)) +- Allow overriding THROW/CATCH/TRY macros with no-exceptions \#938 [\#940](https://github.com/nlohmann/json/pull/940) ([kaidokert](https://github.com/kaidokert)) +- Removed compiler warning about unused variable 'kMinExp' [\#936](https://github.com/nlohmann/json/pull/936) ([zerodefect](https://github.com/zerodefect)) +- Fix a typo in README.md [\#930](https://github.com/nlohmann/json/pull/930) ([Pipeliner](https://github.com/Pipeliner)) +- Howto installation of json\_fwd.hpp \(fixes \#923\) [\#925](https://github.com/nlohmann/json/pull/925) ([zerodefect](https://github.com/zerodefect)) +- fix sfinae on basic\_json UDT constructor [\#919](https://github.com/nlohmann/json/pull/919) ([theodelrieu](https://github.com/theodelrieu)) +- Floating-point formatting [\#915](https://github.com/nlohmann/json/pull/915) ([abolz](https://github.com/abolz)) +- Fix/cmake install [\#911](https://github.com/nlohmann/json/pull/911) ([theodelrieu](https://github.com/theodelrieu)) +- fix link to the documentation of the emplace function [\#900](https://github.com/nlohmann/json/pull/900) ([Dobiasd](https://github.com/Dobiasd)) +- JSON Merge Patch \(RFC 7396\) [\#876](https://github.com/nlohmann/json/pull/876) ([nlohmann](https://github.com/nlohmann)) +- Refactor/split it [\#700](https://github.com/nlohmann/json/pull/700) ([theodelrieu](https://github.com/theodelrieu)) + +## [3.1.0](https://github.com/nlohmann/json/releases/tag/3.1.0) (2018-02-01) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.0.1...3.1.0) + +- I have a proposal [\#949](https://github.com/nlohmann/json/issues/949) +- VERSION define\(s\) [\#948](https://github.com/nlohmann/json/issues/948) +- v3.0.1 compile error in icc 16.0.4 [\#947](https://github.com/nlohmann/json/issues/947) +- Use in VS2017 15.5.5 [\#946](https://github.com/nlohmann/json/issues/946) +- Process for reporting Security Bugs? [\#945](https://github.com/nlohmann/json/issues/945) +- Please expose a NLOHMANN\_JSON\_VERSION macro [\#943](https://github.com/nlohmann/json/issues/943) +- Change header include directory to nlohmann/json [\#942](https://github.com/nlohmann/json/issues/942) +- string\_type in binary\_reader [\#941](https://github.com/nlohmann/json/issues/941) +- compile error with clang 5.0 -std=c++1z and no string\_view [\#939](https://github.com/nlohmann/json/issues/939) +- Allow overriding JSON\_THROW to something else than abort\(\) [\#938](https://github.com/nlohmann/json/issues/938) +- Handle invalid string in Json file [\#937](https://github.com/nlohmann/json/issues/937) +- Unused variable 'kMinExp' [\#935](https://github.com/nlohmann/json/issues/935) +- yytext is already defined [\#933](https://github.com/nlohmann/json/issues/933) +- Equality operator fails [\#931](https://github.com/nlohmann/json/issues/931) +- use in visual studio 2015 [\#929](https://github.com/nlohmann/json/issues/929) +- Relative includes of json\_fwd.hpp in detail/meta.hpp. \[Develop branch\] [\#928](https://github.com/nlohmann/json/issues/928) +- GCC 7.x issue [\#926](https://github.com/nlohmann/json/issues/926) +- json\_fwd.hpp not installed [\#923](https://github.com/nlohmann/json/issues/923) +- Use Google Benchmarks [\#921](https://github.com/nlohmann/json/issues/921) +- Move class json\_pointer to separate file [\#920](https://github.com/nlohmann/json/issues/920) +- Unable to locate 'to\_json\(\)' and 'from\_json\(\)' methods in the same namespace [\#917](https://github.com/nlohmann/json/issues/917) +- \[answered\]Read key1 from .value example [\#914](https://github.com/nlohmann/json/issues/914) +- Don't use `define private public` in test files [\#913](https://github.com/nlohmann/json/issues/913) +- value\(\) template argument type deduction [\#912](https://github.com/nlohmann/json/issues/912) +- Installation path is incorrect [\#910](https://github.com/nlohmann/json/issues/910) +- H [\#909](https://github.com/nlohmann/json/issues/909) +- Build failure using clang 5 [\#908](https://github.com/nlohmann/json/issues/908) +- Amalgate [\#907](https://github.com/nlohmann/json/issues/907) +- Update documentation and tests wrt. split headers [\#906](https://github.com/nlohmann/json/issues/906) +- Lib not working on ubuntu 16.04 [\#905](https://github.com/nlohmann/json/issues/905) +- Problem when writing to file. [\#904](https://github.com/nlohmann/json/issues/904) +- C2864 error when compiling with VS2015 and VS 2017 [\#903](https://github.com/nlohmann/json/issues/903) +- \[json.exception.type\_error.304\] cannot use at\(\) with object [\#902](https://github.com/nlohmann/json/issues/902) +- How do I forward nlohmann::json declaration? [\#899](https://github.com/nlohmann/json/issues/899) +- How to effectively store binary data? [\#898](https://github.com/nlohmann/json/issues/898) +- How to get the length of a JSON string without retrieving its std::string? [\#897](https://github.com/nlohmann/json/issues/897) +- Regression Tests Failure using "ctest" [\#887](https://github.com/nlohmann/json/issues/887) +- Discuss: add JSON Merge Patch \(RFC 7396\)? [\#877](https://github.com/nlohmann/json/issues/877) +- Discuss: replace static "iterator\_wrapper" function with "items" member function [\#874](https://github.com/nlohmann/json/issues/874) +- Make optional user-data available in from\_json [\#864](https://github.com/nlohmann/json/issues/864) +- Casting to std::string not working in VS2015 [\#861](https://github.com/nlohmann/json/issues/861) +- Sequential reading of JSON arrays [\#851](https://github.com/nlohmann/json/issues/851) +- Idea: Handle Multimaps Better [\#816](https://github.com/nlohmann/json/issues/816) +- Floating point rounding [\#777](https://github.com/nlohmann/json/issues/777) +- Loss of precision when serializing \ [\#360](https://github.com/nlohmann/json/issues/360) + +## [v3.0.1](https://github.com/nlohmann/json/releases/tag/v3.0.1) (2017-12-29) + +[Full Changelog](https://github.com/nlohmann/json/compare/3.0.1...v3.0.1) + +- Includes CTest module/adds BUILD\_TESTING option [\#885](https://github.com/nlohmann/json/pull/885) ([TinyTinni](https://github.com/TinyTinni)) +- Fix MSVC warning C4819 [\#882](https://github.com/nlohmann/json/pull/882) ([erengy](https://github.com/erengy)) +- Merge branch 'develop' into coverity\_scan [\#880](https://github.com/nlohmann/json/pull/880) ([nlohmann](https://github.com/nlohmann)) +- :wrench: Fix up a few more effc++ items [\#858](https://github.com/nlohmann/json/pull/858) ([mattismyname](https://github.com/mattismyname)) + +## [3.0.1](https://github.com/nlohmann/json/releases/tag/3.0.1) (2017-12-29) + +[Full Changelog](https://github.com/nlohmann/json/compare/v3.0.0...3.0.1) + +- Problem parsing array to global vector [\#896](https://github.com/nlohmann/json/issues/896) +- Invalid RFC6902 copy operation succeeds [\#894](https://github.com/nlohmann/json/issues/894) +- How to rename a key during looping? [\#893](https://github.com/nlohmann/json/issues/893) +- clang++-6.0 \(6.0.0-svn321357-1\) warning [\#892](https://github.com/nlohmann/json/issues/892) +- Make json.hpp aware of the modules TS? [\#891](https://github.com/nlohmann/json/issues/891) +- All enum values not handled in switch cases. \( -Wswitch-enum \) [\#889](https://github.com/nlohmann/json/issues/889) +- JSON Pointer resolve failure resulting in incorrect exception code [\#888](https://github.com/nlohmann/json/issues/888) +- Unexpected nested arrays from std::vector [\#886](https://github.com/nlohmann/json/issues/886) +- erase multiple elements from a json object [\#884](https://github.com/nlohmann/json/issues/884) +- Container function overview in Doxygen is not updated [\#883](https://github.com/nlohmann/json/issues/883) +- How to use this for binary file uploads [\#881](https://github.com/nlohmann/json/issues/881) +- Allow setting JSON\_BuildTests=OFF from parent CMakeLists.txt [\#846](https://github.com/nlohmann/json/issues/846) +- Unit test fails for local-independent str-to-num [\#845](https://github.com/nlohmann/json/issues/845) +- Another idea about type support [\#774](https://github.com/nlohmann/json/issues/774) + +## [v3.0.0](https://github.com/nlohmann/json/releases/tag/v3.0.0) (2017-12-17) + +[Full Changelog](https://github.com/nlohmann/json/compare/3.0.0...v3.0.0) + +- :white\_check\_mark: re-added tests for algorithms [\#879](https://github.com/nlohmann/json/pull/879) ([nlohmann](https://github.com/nlohmann)) +- Overworked library toward 3.0.0 release [\#875](https://github.com/nlohmann/json/pull/875) ([nlohmann](https://github.com/nlohmann)) +- :rotating\_light: remove C4996 warnings \#872 [\#873](https://github.com/nlohmann/json/pull/873) ([nlohmann](https://github.com/nlohmann)) +- :boom: throwing an exception in case dump encounters a non-UTF-8 string \#838 [\#870](https://github.com/nlohmann/json/pull/870) ([nlohmann](https://github.com/nlohmann)) +- :memo: fixing documentation \#867 [\#868](https://github.com/nlohmann/json/pull/868) ([nlohmann](https://github.com/nlohmann)) +- iter\_impl template conformance with C++17 [\#860](https://github.com/nlohmann/json/pull/860) ([bogemic](https://github.com/bogemic)) +- Std allocator conformance cpp17 [\#856](https://github.com/nlohmann/json/pull/856) ([bogemic](https://github.com/bogemic)) +- cmake: use BUILD\_INTERFACE/INSTALL\_INTERFACE [\#855](https://github.com/nlohmann/json/pull/855) ([theodelrieu](https://github.com/theodelrieu)) +- to/from\_json: add a MSVC-specific static\_assert to force a stacktrace [\#854](https://github.com/nlohmann/json/pull/854) ([theodelrieu](https://github.com/theodelrieu)) +- Add .natvis for MSVC debug view [\#844](https://github.com/nlohmann/json/pull/844) ([TinyTinni](https://github.com/TinyTinni)) +- Updated hunter package links [\#829](https://github.com/nlohmann/json/pull/829) ([jowr](https://github.com/jowr)) +- Typos README [\#811](https://github.com/nlohmann/json/pull/811) ([Itja](https://github.com/Itja)) +- add forwarding references to json\_ref constructor [\#807](https://github.com/nlohmann/json/pull/807) ([theodelrieu](https://github.com/theodelrieu)) +- Add transparent comparator and perfect forwarding support to find\(\) and count\(\) [\#795](https://github.com/nlohmann/json/pull/795) ([jseward](https://github.com/jseward)) +- Error : 'identifier "size\_t" is undefined' in linux [\#793](https://github.com/nlohmann/json/pull/793) ([sonulohani](https://github.com/sonulohani)) +- Fix Visual Studio 2017 warnings [\#788](https://github.com/nlohmann/json/pull/788) ([jseward](https://github.com/jseward)) +- Fix warning C4706 on Visual Studio 2017 [\#785](https://github.com/nlohmann/json/pull/785) ([jseward](https://github.com/jseward)) +- Set GENERATE\_TAGFILE in Doxyfile [\#783](https://github.com/nlohmann/json/pull/783) ([eld00d](https://github.com/eld00d)) +- using more CMake [\#765](https://github.com/nlohmann/json/pull/765) ([nlohmann](https://github.com/nlohmann)) +- Simplified istream handing \#367 [\#764](https://github.com/nlohmann/json/pull/764) ([pjkundert](https://github.com/pjkundert)) +- Add info for the vcpkg package. [\#753](https://github.com/nlohmann/json/pull/753) ([gregmarr](https://github.com/gregmarr)) +- fix from\_json implementation for pair/tuple [\#708](https://github.com/nlohmann/json/pull/708) ([theodelrieu](https://github.com/theodelrieu)) +- Update json.hpp [\#686](https://github.com/nlohmann/json/pull/686) ([GoWebProd](https://github.com/GoWebProd)) +- Remove duplicate word [\#685](https://github.com/nlohmann/json/pull/685) ([daixtrose](https://github.com/daixtrose)) +- To fix compilation issue for intel OSX compiler [\#682](https://github.com/nlohmann/json/pull/682) ([kbthomp1](https://github.com/kbthomp1)) +- Digraph warning [\#679](https://github.com/nlohmann/json/pull/679) ([traits](https://github.com/traits)) +- massage -\> message [\#678](https://github.com/nlohmann/json/pull/678) ([DmitryKuk](https://github.com/DmitryKuk)) +- Fix "not constraint" grammar in docs [\#674](https://github.com/nlohmann/json/pull/674) ([wincent](https://github.com/wincent)) +- Add documentation for integration with CMake and hunter [\#671](https://github.com/nlohmann/json/pull/671) ([dan-42](https://github.com/dan-42)) +- REFACTOR: rewrite CMakeLists.txt for better inlcude and reuse [\#669](https://github.com/nlohmann/json/pull/669) ([dan-42](https://github.com/dan-42)) +- enable\_testing only if the JSON\_BuildTests is ON [\#666](https://github.com/nlohmann/json/pull/666) ([effolkronium](https://github.com/effolkronium)) +- Support moving from rvalues in std::initializer\_list [\#663](https://github.com/nlohmann/json/pull/663) ([himikof](https://github.com/himikof)) +- add ensure\_ascii parameter to dump. \#330 [\#654](https://github.com/nlohmann/json/pull/654) ([ryanjmulder](https://github.com/ryanjmulder)) +- Rename BuildTests to JSON\_BuildTests [\#652](https://github.com/nlohmann/json/pull/652) ([olegendo](https://github.com/olegendo)) +- Don't include \, use std::make\_shared [\#650](https://github.com/nlohmann/json/pull/650) ([olegendo](https://github.com/olegendo)) +- Refacto/split basic json [\#643](https://github.com/nlohmann/json/pull/643) ([theodelrieu](https://github.com/theodelrieu)) +- fix typo in operator\_\_notequal example [\#630](https://github.com/nlohmann/json/pull/630) ([Chocobo1](https://github.com/Chocobo1)) +- Fix MSVC warning C4819 [\#629](https://github.com/nlohmann/json/pull/629) ([Chocobo1](https://github.com/Chocobo1)) +- \[BugFix\] Add parentheses around std::min [\#626](https://github.com/nlohmann/json/pull/626) ([koemeet](https://github.com/koemeet)) +- add pair/tuple conversions [\#624](https://github.com/nlohmann/json/pull/624) ([theodelrieu](https://github.com/theodelrieu)) +- remove std::pair support [\#615](https://github.com/nlohmann/json/pull/615) ([theodelrieu](https://github.com/theodelrieu)) +- Add pair support, fix CompatibleObject conversions \(fixes \#600\) [\#609](https://github.com/nlohmann/json/pull/609) ([theodelrieu](https://github.com/theodelrieu)) +- \#550 Fix iterator related compiling issues for Intel icc [\#598](https://github.com/nlohmann/json/pull/598) ([HenryRLee](https://github.com/HenryRLee)) +- Issue \#593 Fix the arithmetic operators in the iterator and reverse iterator [\#595](https://github.com/nlohmann/json/pull/595) ([HenryRLee](https://github.com/HenryRLee)) +- fix doxygen error of basic\_json::get\(\) [\#583](https://github.com/nlohmann/json/pull/583) ([zhaohuaxishi](https://github.com/zhaohuaxishi)) +- Fixing assignement for iterator wrapper second, and adding unit test [\#579](https://github.com/nlohmann/json/pull/579) ([Type1J](https://github.com/Type1J)) +- Adding first and second properties to iteration\_proxy\_internal [\#578](https://github.com/nlohmann/json/pull/578) ([Type1J](https://github.com/Type1J)) +- Adding support for Meson. [\#576](https://github.com/nlohmann/json/pull/576) ([Type1J](https://github.com/Type1J)) +- add enum class default conversions [\#545](https://github.com/nlohmann/json/pull/545) ([theodelrieu](https://github.com/theodelrieu)) +- Properly pop diagnostics [\#540](https://github.com/nlohmann/json/pull/540) ([tinloaf](https://github.com/tinloaf)) +- Add Visual Studio 17 image to appveyor build matrix [\#536](https://github.com/nlohmann/json/pull/536) ([vpetrigo](https://github.com/vpetrigo)) +- UTF8 encoding enhancement [\#534](https://github.com/nlohmann/json/pull/534) ([TedLyngmo](https://github.com/TedLyngmo)) +- Fix typo [\#530](https://github.com/nlohmann/json/pull/530) ([berkus](https://github.com/berkus)) +- Make exception base class visible in basic\_json [\#526](https://github.com/nlohmann/json/pull/526) ([krzysztofwos](https://github.com/krzysztofwos)) +- :art: Namespace `uint8_t` from the C++ stdlib [\#510](https://github.com/nlohmann/json/pull/510) ([alex-weej](https://github.com/alex-weej)) +- add to\_json method for C arrays [\#508](https://github.com/nlohmann/json/pull/508) ([theodelrieu](https://github.com/theodelrieu)) +- Fix -Weffc++ warnings \(GNU 6.3.1\) [\#496](https://github.com/nlohmann/json/pull/496) ([TedLyngmo](https://github.com/TedLyngmo)) + +## [3.0.0](https://github.com/nlohmann/json/releases/tag/3.0.0) (2017-12-17) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.1.1...3.0.0) + +- unicode strings [\#878](https://github.com/nlohmann/json/issues/878) +- Visual Studio 2017 15.5 C++17 std::allocator deprecations [\#872](https://github.com/nlohmann/json/issues/872) +- Typo "excpetion" [\#869](https://github.com/nlohmann/json/issues/869) +- Explicit array example in README.md incorrect [\#867](https://github.com/nlohmann/json/issues/867) +- why don't you release this from Feb. ? [\#865](https://github.com/nlohmann/json/issues/865) +- json::parse throws std::invalid\_argument when processing string generated by json::dump\(\) [\#863](https://github.com/nlohmann/json/issues/863) +- code analysis: potential bug? [\#859](https://github.com/nlohmann/json/issues/859) +- MSVC2017, 15.5 new issues. [\#857](https://github.com/nlohmann/json/issues/857) +- very basic: fetching string value/content without quotes [\#853](https://github.com/nlohmann/json/issues/853) +- Ambiguous function call to get with pointer type and constant json object in VS2015 \(15.4.4\) [\#852](https://github.com/nlohmann/json/issues/852) +- How to put object in the array as a member? [\#850](https://github.com/nlohmann/json/issues/850) +- misclick, please ignore [\#849](https://github.com/nlohmann/json/issues/849) +- Make XML great again. [\#847](https://github.com/nlohmann/json/issues/847) +- Converting to array not working [\#843](https://github.com/nlohmann/json/issues/843) +- Iteration weirdness [\#842](https://github.com/nlohmann/json/issues/842) +- Use reference or pointer as Object value [\#841](https://github.com/nlohmann/json/issues/841) +- Ambiguity in parsing nested maps [\#840](https://github.com/nlohmann/json/issues/840) +- could not find from\_json\(\) method in T's namespace [\#839](https://github.com/nlohmann/json/issues/839) +- Incorrect parse error with binary data in keys? [\#838](https://github.com/nlohmann/json/issues/838) +- using dump\(\) when std::wstring is StringType with VS2017 [\#836](https://github.com/nlohmann/json/issues/836) +- Show the path of the currently parsed value when an error occurs [\#835](https://github.com/nlohmann/json/issues/835) +- Repetitive data type while reading [\#833](https://github.com/nlohmann/json/issues/833) +- Storing multiple types inside map [\#831](https://github.com/nlohmann/json/issues/831) +- Application terminating [\#830](https://github.com/nlohmann/json/issues/830) +- Missing CMake hunter package? [\#828](https://github.com/nlohmann/json/issues/828) +- std::map\ from json object yields C2665: 'std::pair\::pair': none of the 2 overloads could convert all the argument types [\#827](https://github.com/nlohmann/json/issues/827) +- object.dump gives quoted string, want to use .dump\(\) to generate javascripts. [\#826](https://github.com/nlohmann/json/issues/826) +- Assertion failed on \["NoExistKey"\] of an not existing key of const json& [\#825](https://github.com/nlohmann/json/issues/825) +- vs2015 error : static member will remain uninitialized at runtime but use in constant-expressions is supported [\#824](https://github.com/nlohmann/json/issues/824) +- Code Checking Warnings from json.hpp on VS2017 Community [\#821](https://github.com/nlohmann/json/issues/821) +- Missing iostream in try online [\#820](https://github.com/nlohmann/json/issues/820) +- Floating point value loses decimal point during dump [\#818](https://github.com/nlohmann/json/issues/818) +- Conan package for the library [\#817](https://github.com/nlohmann/json/issues/817) +- stream error [\#815](https://github.com/nlohmann/json/issues/815) +- Link error when using find\(\) on the latest commit [\#814](https://github.com/nlohmann/json/issues/814) +- ABI issue with json object between 2 shared libraries [\#813](https://github.com/nlohmann/json/issues/813) +- scan\_string\(\) return token\_type::parse\_error; when parse ansi file [\#812](https://github.com/nlohmann/json/issues/812) +- segfault when using fifo\_map with json [\#810](https://github.com/nlohmann/json/issues/810) +- This shit is shit [\#809](https://github.com/nlohmann/json/issues/809) +- \_finite and \_isnan are no members of "std" [\#808](https://github.com/nlohmann/json/issues/808) +- how to print out the line which causing exception? [\#806](https://github.com/nlohmann/json/issues/806) +- {} uses copy constructor, while = does not [\#805](https://github.com/nlohmann/json/issues/805) +- json.hpp:8955: multiple definition of function that is not defined twice or more. [\#804](https://github.com/nlohmann/json/issues/804) +- \[question\] to\_json for base and derived class [\#803](https://github.com/nlohmann/json/issues/803) +- Misleading error message - unexpected '"' - on incorrect utf-8 symbol [\#802](https://github.com/nlohmann/json/issues/802) +- json data = std::string\_view\("hi"\); doesn't work? [\#801](https://github.com/nlohmann/json/issues/801) +- Thread safety of parse\(\) [\#800](https://github.com/nlohmann/json/issues/800) +- Numbers as strings [\#799](https://github.com/nlohmann/json/issues/799) +- Tests failing on arm [\#797](https://github.com/nlohmann/json/issues/797) +- Using your library \(without modification\) in another library [\#796](https://github.com/nlohmann/json/issues/796) +- Iterating over sub-object [\#794](https://github.com/nlohmann/json/issues/794) +- how to get the json object again from which printed by the method of dump\(\) [\#792](https://github.com/nlohmann/json/issues/792) +- ppa to include source [\#791](https://github.com/nlohmann/json/issues/791) +- Different include paths in macOS and Ubuntu [\#790](https://github.com/nlohmann/json/issues/790) +- Missing break after line 12886 in switch/case [\#789](https://github.com/nlohmann/json/issues/789) +- All unit tests fail? [\#787](https://github.com/nlohmann/json/issues/787) +- More use of move semantics in deserialization [\#786](https://github.com/nlohmann/json/issues/786) +- warning C4706 - Visual Studio 2017 \(/W4\) [\#784](https://github.com/nlohmann/json/issues/784) +- Compile error in clang 5.0 [\#782](https://github.com/nlohmann/json/issues/782) +- Error Installing appium\_lib with Ruby v2.4.2 Due to JSON [\#781](https://github.com/nlohmann/json/issues/781) +- ::get\\(\) fails in new\(er\) release \[MSVC\] [\#780](https://github.com/nlohmann/json/issues/780) +- Type Conversion [\#779](https://github.com/nlohmann/json/issues/779) +- Segfault on nested parsing [\#778](https://github.com/nlohmann/json/issues/778) +- Build warnings: shadowing exception id [\#776](https://github.com/nlohmann/json/issues/776) +- multi-level JSON support. [\#775](https://github.com/nlohmann/json/issues/775) +- SIGABRT on dump\(\) [\#773](https://github.com/nlohmann/json/issues/773) +- \[Question\] Custom StringType template parameter \(possibility for a KeyType template parameter\) [\#772](https://github.com/nlohmann/json/issues/772) +- constexpr ALL the Things! [\#771](https://github.com/nlohmann/json/issues/771) +- error: ‘BasicJsonType’ in namespace ‘::’ does not name a type [\#770](https://github.com/nlohmann/json/issues/770) +- Program calls abort function [\#769](https://github.com/nlohmann/json/issues/769) +- \[Question\] Floating point resolution config during dump\(\) ? [\#768](https://github.com/nlohmann/json/issues/768) +- make check - no test ran [\#767](https://github.com/nlohmann/json/issues/767) +- The library cannot work properly with custom allocator based containers [\#766](https://github.com/nlohmann/json/issues/766) +- Documentation or feature request. [\#763](https://github.com/nlohmann/json/issues/763) +- warnings in msvc about mix/max macro while windows.h is used in the project [\#762](https://github.com/nlohmann/json/issues/762) +- std::signbit ambiguous [\#761](https://github.com/nlohmann/json/issues/761) +- How to use value for std::experimental::optional type? [\#760](https://github.com/nlohmann/json/issues/760) +- Cannot load json file properly [\#759](https://github.com/nlohmann/json/issues/759) +- Compilation error with unordered\_map\< int, int \> [\#758](https://github.com/nlohmann/json/issues/758) +- CBOR string [\#757](https://github.com/nlohmann/json/issues/757) +- Proposal: out\_of\_range should be a subclass of std::out\_of\_range [\#756](https://github.com/nlohmann/json/issues/756) +- Compiling with icpc [\#755](https://github.com/nlohmann/json/issues/755) +- Getter is setting the value to null if the key does not exist [\#754](https://github.com/nlohmann/json/issues/754) +- parsing works sometimes and crashes others [\#752](https://github.com/nlohmann/json/issues/752) +- Static\_assert failed "incompatible pointer type" with Xcode [\#751](https://github.com/nlohmann/json/issues/751) +- user-defined literal operator not found [\#750](https://github.com/nlohmann/json/issues/750) +- getting clean string from it.key\(\) [\#748](https://github.com/nlohmann/json/issues/748) +- Best method for exploring and obtaining values of nested json objects when the names are not known beforehand? [\#747](https://github.com/nlohmann/json/issues/747) +- null char at the end of string [\#746](https://github.com/nlohmann/json/issues/746) +- Incorrect sample for operator \>\> in docs [\#745](https://github.com/nlohmann/json/issues/745) +- User-friendly documentation [\#744](https://github.com/nlohmann/json/issues/744) +- Retrieve all values that match a json path [\#743](https://github.com/nlohmann/json/issues/743) +- Compilation issue with gcc 7.2 [\#742](https://github.com/nlohmann/json/issues/742) +- CMake target nlohmann\_json does not have src into its interface includes [\#741](https://github.com/nlohmann/json/issues/741) +- Error when serializing empty json: type must be string, but is object [\#740](https://github.com/nlohmann/json/issues/740) +- Conversion error for std::map\ [\#739](https://github.com/nlohmann/json/issues/739) +- Dumping Json to file as array [\#738](https://github.com/nlohmann/json/issues/738) +- nesting json objects [\#737](https://github.com/nlohmann/json/issues/737) +- where to find general help? [\#736](https://github.com/nlohmann/json/issues/736) +- Compilation Error on Clang 5.0 Upgrade [\#735](https://github.com/nlohmann/json/issues/735) +- Compilation error with std::map\ on vs 2015 [\#734](https://github.com/nlohmann/json/issues/734) +- Benchmarks for Binary formats [\#733](https://github.com/nlohmann/json/issues/733) +- Support \n symbols in json string. [\#731](https://github.com/nlohmann/json/issues/731) +- Project's name is too generic and hard to search for [\#730](https://github.com/nlohmann/json/issues/730) +- Visual Studio 2015 IntelliTrace problems [\#729](https://github.com/nlohmann/json/issues/729) +- How to erase nested objects inside other objects? [\#728](https://github.com/nlohmann/json/issues/728) +- Serialization for CBOR [\#726](https://github.com/nlohmann/json/issues/726) +- Using json Object as value in a map [\#725](https://github.com/nlohmann/json/issues/725) +- std::regex and nlohmann::json value [\#724](https://github.com/nlohmann/json/issues/724) +- Warnings when compiling with VisualStudio 2015 [\#723](https://github.com/nlohmann/json/issues/723) +- Has this lib the unicode \(wstring\) support? [\#722](https://github.com/nlohmann/json/issues/722) +- When will be 3.0 in master? [\#721](https://github.com/nlohmann/json/issues/721) +- Determine the type from error message. [\#720](https://github.com/nlohmann/json/issues/720) +- Compile-Error C2100 \(MS VS2015\) in line 887 json.hpp [\#719](https://github.com/nlohmann/json/issues/719) +- from\_json not working for boost::optional example [\#718](https://github.com/nlohmann/json/issues/718) +- about from\_json and to\_json function [\#717](https://github.com/nlohmann/json/issues/717) +- How to detect parse failure? [\#715](https://github.com/nlohmann/json/issues/715) +- Parse throw std::ios\_base::failure exception when failbit set to true [\#714](https://github.com/nlohmann/json/issues/714) +- Is there a way of format just making a pretty print without changing the key's orders ? [\#713](https://github.com/nlohmann/json/issues/713) +- Serialization of array of not same model items [\#712](https://github.com/nlohmann/json/issues/712) +- pointer to json parse vector [\#711](https://github.com/nlohmann/json/issues/711) +- Gtest SEH Exception [\#709](https://github.com/nlohmann/json/issues/709) +- broken from\_json implementation for pair and tuple [\#707](https://github.com/nlohmann/json/issues/707) +- Unevaluated lambda in assert breaks gcc 7 build [\#705](https://github.com/nlohmann/json/issues/705) +- Issues when adding values to firebase database [\#704](https://github.com/nlohmann/json/issues/704) +- Floating point equality - revisited [\#703](https://github.com/nlohmann/json/issues/703) +- Conversion from valarray\ to json fails to build [\#702](https://github.com/nlohmann/json/issues/702) +- internal compiler error \(gcc7\) [\#701](https://github.com/nlohmann/json/issues/701) +- One build system to rule them all [\#698](https://github.com/nlohmann/json/issues/698) +- Generated nlohmann\_jsonConfig.cmake does not set JSON\_INCLUDE\_DIR [\#695](https://github.com/nlohmann/json/issues/695) +- support the Chinese language in json string [\#694](https://github.com/nlohmann/json/issues/694) +- NaN problem within develop branch [\#693](https://github.com/nlohmann/json/issues/693) +- Please post example of specialization for boost::filesystem [\#692](https://github.com/nlohmann/json/issues/692) +- Impossible to do an array of composite objects [\#691](https://github.com/nlohmann/json/issues/691) +- How to save json to file? [\#690](https://github.com/nlohmann/json/issues/690) +- my simple json parser [\#689](https://github.com/nlohmann/json/issues/689) +- problem with new struct parsing syntax [\#688](https://github.com/nlohmann/json/issues/688) +- Parse error while parse the json string contains UTF 8 encoded document bytes string [\#684](https://github.com/nlohmann/json/issues/684) +- \[question\] how to get a string value by pointer [\#683](https://github.com/nlohmann/json/issues/683) +- create json object from string variable [\#681](https://github.com/nlohmann/json/issues/681) +- adl\_serializer and CRTP [\#680](https://github.com/nlohmann/json/issues/680) +- Is there a way to control the precision of serialized floating point numbers? [\#677](https://github.com/nlohmann/json/issues/677) +- Is there a way to get the path of a value? [\#676](https://github.com/nlohmann/json/issues/676) +- Could the parser locate errors to line? [\#675](https://github.com/nlohmann/json/issues/675) +- There is performance inefficiency found by coverity tool json2.1.1/include/nlohmann/json.hpp [\#673](https://github.com/nlohmann/json/issues/673) +- include problem, when cmake on osx [\#672](https://github.com/nlohmann/json/issues/672) +- Operator= ambiguous in C++1z and GCC 7.1.1 [\#670](https://github.com/nlohmann/json/issues/670) +- should't the cmake install target be to nlohman/json.hpp [\#668](https://github.com/nlohmann/json/issues/668) +- deserialise from `std::vector` [\#667](https://github.com/nlohmann/json/issues/667) +- How to iterate? [\#665](https://github.com/nlohmann/json/issues/665) +- could this json lib work on windows? [\#664](https://github.com/nlohmann/json/issues/664) +- How does from\_json work? [\#662](https://github.com/nlohmann/json/issues/662) +- insert\(or merge\) object should replace same key , not ignore [\#661](https://github.com/nlohmann/json/issues/661) +- Parse method doesn't handle newlines. [\#659](https://github.com/nlohmann/json/issues/659) +- Compilation "note" on GCC 6 ARM [\#658](https://github.com/nlohmann/json/issues/658) +- Adding additional push\_back/operator+= rvalue overloads for JSON object [\#657](https://github.com/nlohmann/json/issues/657) +- dump's parameter "ensure\_ascii" creates too long sequences [\#656](https://github.com/nlohmann/json/issues/656) +- Question: parsing `void *` [\#655](https://github.com/nlohmann/json/issues/655) +- how should I check a string is valid JSON string ? [\#653](https://github.com/nlohmann/json/issues/653) +- Question: thread safety of read only accesses [\#651](https://github.com/nlohmann/json/issues/651) +- Eclipse: Method 'size' could not be resolved [\#649](https://github.com/nlohmann/json/issues/649) +- Update/Add object fields [\#648](https://github.com/nlohmann/json/issues/648) +- No exception raised for Out Of Range input of numbers [\#647](https://github.com/nlohmann/json/issues/647) +- Package Name [\#646](https://github.com/nlohmann/json/issues/646) +- What is the meaning of operator\[\]\(T\* key\) [\#645](https://github.com/nlohmann/json/issues/645) +- Which is the correct way to json objects as parameters to functions? [\#644](https://github.com/nlohmann/json/issues/644) +- Method to get string representations of values [\#642](https://github.com/nlohmann/json/issues/642) +- CBOR serialization of a given JSON value does not serialize [\#641](https://github.com/nlohmann/json/issues/641) +- Are we forced to use "-fexceptions" flag in android ndk project [\#640](https://github.com/nlohmann/json/issues/640) +- Comparison of objects containing floats [\#639](https://github.com/nlohmann/json/issues/639) +- 'localeconv' is not supported by NDK for SDK \<=20 [\#638](https://github.com/nlohmann/json/issues/638) +- \[Question\] cLion integration [\#637](https://github.com/nlohmann/json/issues/637) +- How to construct an iteratable usage in nlohmann json? [\#636](https://github.com/nlohmann/json/issues/636) +- \[Question\] copy assign json-container to vector [\#635](https://github.com/nlohmann/json/issues/635) +- Get size without .dump\(\) [\#634](https://github.com/nlohmann/json/issues/634) +- Segmentation fault when parsing invalid json file [\#633](https://github.com/nlohmann/json/issues/633) +- How to serialize from json to vector\? [\#632](https://github.com/nlohmann/json/issues/632) +- no member named 'thousands\_sep' in 'lconv' [\#631](https://github.com/nlohmann/json/issues/631) +- \[Question\] Any fork for \(the unsupported\) Visual Studio 2012 version? [\#628](https://github.com/nlohmann/json/issues/628) +- Dependency injection in serializer [\#627](https://github.com/nlohmann/json/issues/627) +- from\_json for std::array [\#625](https://github.com/nlohmann/json/issues/625) +- Discussion: How to structure the parsing function families [\#623](https://github.com/nlohmann/json/issues/623) +- Question: How to erase subtree [\#622](https://github.com/nlohmann/json/issues/622) +- Insertion into nested json field [\#621](https://github.com/nlohmann/json/issues/621) +- Question: return static json object from function [\#618](https://github.com/nlohmann/json/issues/618) +- icc16 error [\#617](https://github.com/nlohmann/json/issues/617) +- \[-Wdeprecated-declarations\] in row `j >> ss;` in file `json.hpp:7405:26` and FAILED unit tests with MinGWx64! [\#616](https://github.com/nlohmann/json/issues/616) +- to\_json for pairs, tuples [\#614](https://github.com/nlohmann/json/issues/614) +- Using uninitialized memory 'buf' in line 11173 v2.1.1? [\#613](https://github.com/nlohmann/json/issues/613) +- How to parse multiple same Keys of JSON and save them? [\#612](https://github.com/nlohmann/json/issues/612) +- "Multiple declarations" error when using types defined with `typedef` [\#611](https://github.com/nlohmann/json/issues/611) +- 2.1.1+ breaks compilation of shared\_ptr\ == 0 [\#610](https://github.com/nlohmann/json/issues/610) +- a bug of inheritance ? [\#608](https://github.com/nlohmann/json/issues/608) +- std::map key conversion with to\_json [\#607](https://github.com/nlohmann/json/issues/607) +- json.hpp:6384:62: error: wrong number of template arguments \(1, should be 2\) [\#606](https://github.com/nlohmann/json/issues/606) +- Incremental parsing: Where's the push version? [\#605](https://github.com/nlohmann/json/issues/605) +- Is there a way to validate the structure of a json object ? [\#604](https://github.com/nlohmann/json/issues/604) +- \[Question\] Issue when using Appveyor when compiling library [\#603](https://github.com/nlohmann/json/issues/603) +- BOM not skipped when using json:parse\(iterator\) [\#602](https://github.com/nlohmann/json/issues/602) +- Use of the binary type in CBOR and Message Pack [\#601](https://github.com/nlohmann/json/issues/601) +- Newbie issue: how does one convert a map in Json back to std::map? [\#600](https://github.com/nlohmann/json/issues/600) +- Plugin system [\#599](https://github.com/nlohmann/json/issues/599) +- Using custom types for scalars? [\#596](https://github.com/nlohmann/json/issues/596) +- Issues with the arithmetic in iterator and reverse iterator [\#593](https://github.com/nlohmann/json/issues/593) +- not enough examples [\#592](https://github.com/nlohmann/json/issues/592) +- in-class initialization for type 'const T' is not yet implemented [\#591](https://github.com/nlohmann/json/issues/591) +- compiling with gcc 7 -\> error on bool operator \< [\#590](https://github.com/nlohmann/json/issues/590) +- Parsing from stream leads to an array [\#589](https://github.com/nlohmann/json/issues/589) +- Buggy support for binary string data [\#587](https://github.com/nlohmann/json/issues/587) +- C++17's ambiguous conversion [\#586](https://github.com/nlohmann/json/issues/586) +- How does the messagepack encoding/decoding compare to msgpack-cpp in terms of performance? [\#585](https://github.com/nlohmann/json/issues/585) +- is it possible to check existence of a value deep in hierarchy? [\#584](https://github.com/nlohmann/json/issues/584) +- loading from a stream and exceptions [\#582](https://github.com/nlohmann/json/issues/582) +- Visual Studio seems not to have all min\(\) function versions [\#581](https://github.com/nlohmann/json/issues/581) +- Supporting of the json schema [\#580](https://github.com/nlohmann/json/issues/580) +- Stack-overflow \(OSS-Fuzz 1444\) [\#577](https://github.com/nlohmann/json/issues/577) +- Heap-buffer-overflow \(OSS-Fuzz 1400\) [\#575](https://github.com/nlohmann/json/issues/575) +- JSON escape quotes [\#574](https://github.com/nlohmann/json/issues/574) +- error: static\_assert failed [\#573](https://github.com/nlohmann/json/issues/573) +- Storing floats, and round trip serialisation/deserialisation diffs [\#572](https://github.com/nlohmann/json/issues/572) +- JSON.getLong produces inconsistent results [\#571](https://github.com/nlohmann/json/issues/571) +- Request: Object.at\(\) with default return value [\#570](https://github.com/nlohmann/json/issues/570) +- Internal structure gets corrupted while parsing [\#569](https://github.com/nlohmann/json/issues/569) +- create template \ basic\_json from\_cbor\(Iter begin, Iter end\) [\#568](https://github.com/nlohmann/json/issues/568) +- Conan.io [\#566](https://github.com/nlohmann/json/issues/566) +- contradictory documentation regarding json::find [\#565](https://github.com/nlohmann/json/issues/565) +- Unexpected '\"' in middle of array [\#564](https://github.com/nlohmann/json/issues/564) +- Support parse std::pair to Json object [\#563](https://github.com/nlohmann/json/issues/563) +- json and Microsoft Visual c++ Compiler Nov 2012 CTP [\#562](https://github.com/nlohmann/json/issues/562) +- from\_json declaration order and exceptions [\#561](https://github.com/nlohmann/json/issues/561) +- Tip: Don't upgrade to VS2017 if using json initializer list constructs [\#559](https://github.com/nlohmann/json/issues/559) +- parse error - unexpected end of input [\#558](https://github.com/nlohmann/json/issues/558) +- Cant modify existing numbers inside a json object [\#557](https://github.com/nlohmann/json/issues/557) +- Better support for SAX style serialize and deserialize in new version? [\#554](https://github.com/nlohmann/json/issues/554) +- Cannot convert from json array to std::array [\#553](https://github.com/nlohmann/json/issues/553) +- Do not define an unnamed namespace in a header file \(DCL59-CPP\) [\#552](https://github.com/nlohmann/json/issues/552) +- Parse error on known good json file [\#551](https://github.com/nlohmann/json/issues/551) +- Warning on Intel compiler \(icc 17\) [\#550](https://github.com/nlohmann/json/issues/550) +- multiple versions of 'vsnprintf' [\#549](https://github.com/nlohmann/json/issues/549) +- illegal indirection [\#548](https://github.com/nlohmann/json/issues/548) +- Ambiguous compare operators with clang-5.0 [\#547](https://github.com/nlohmann/json/issues/547) +- Using tsl::ordered\_map [\#546](https://github.com/nlohmann/json/issues/546) +- Compiler support errors are inconvenient [\#544](https://github.com/nlohmann/json/issues/544) +- Duplicate symbols error happens while to\_json/from\_json method implemented inside entity definition header file [\#542](https://github.com/nlohmann/json/issues/542) +- consider adding a bool json::is\_valid\(std::string const&\) non-member function [\#541](https://github.com/nlohmann/json/issues/541) +- Help request [\#539](https://github.com/nlohmann/json/issues/539) +- How to deal with missing keys in `from_json`? [\#538](https://github.com/nlohmann/json/issues/538) +- recursive from\_msgpack implementation will stack overflow [\#537](https://github.com/nlohmann/json/issues/537) +- Exception objects must be nothrow copy constructible \(ERR60-CPP\) [\#531](https://github.com/nlohmann/json/issues/531) +- Support for multiple root elements [\#529](https://github.com/nlohmann/json/issues/529) +- Port has\_shape from dropbox/json11 [\#528](https://github.com/nlohmann/json/issues/528) +- dump\_float: truncation from ptrdiff\_t to long [\#527](https://github.com/nlohmann/json/issues/527) +- Make exception base class visible in basic\_json [\#525](https://github.com/nlohmann/json/issues/525) +- msgpack unit test failures on ppc64 arch [\#524](https://github.com/nlohmann/json/issues/524) +- How about split the implementation out, and only leave the interface? [\#523](https://github.com/nlohmann/json/issues/523) +- VC++2017 not enough actual parameters for macro 'max' [\#522](https://github.com/nlohmann/json/issues/522) +- crash on empty ifstream [\#521](https://github.com/nlohmann/json/issues/521) +- Suggestion: Support tabs for indentation when serializing to stream. [\#520](https://github.com/nlohmann/json/issues/520) +- Abrt in get\_number \(OSS-Fuzz 885\) [\#519](https://github.com/nlohmann/json/issues/519) +- Abrt on unknown address \(OSS-Fuzz 884\) [\#518](https://github.com/nlohmann/json/issues/518) +- Stack-overflow \(OSS-Fuzz 869\) [\#517](https://github.com/nlohmann/json/issues/517) +- Assertion error \(OSS-Fuzz 868\) [\#516](https://github.com/nlohmann/json/issues/516) +- NaN to json and back [\#515](https://github.com/nlohmann/json/issues/515) +- Comparison of NaN [\#514](https://github.com/nlohmann/json/issues/514) +- why it's not possible to serialize c++11 enums directly [\#513](https://github.com/nlohmann/json/issues/513) +- clang compile error: use of overloaded operator '\<=' is ambiguous with \(nlohmann::json{{"a", 5}}\)\["a"\] \<= 10 [\#512](https://github.com/nlohmann/json/issues/512) +- Why not also look inside the type for \(static\) to\_json and from\_json funtions? [\#511](https://github.com/nlohmann/json/issues/511) +- Parser issues [\#509](https://github.com/nlohmann/json/issues/509) +- I may not understand [\#507](https://github.com/nlohmann/json/issues/507) +- VS2017 min / max problem for 2.1.1 [\#506](https://github.com/nlohmann/json/issues/506) +- CBOR/MessagePack is not read until the end [\#505](https://github.com/nlohmann/json/issues/505) +- Assertion error \(OSS-Fuzz 856\) [\#504](https://github.com/nlohmann/json/issues/504) +- Return position in parse error exceptions [\#503](https://github.com/nlohmann/json/issues/503) +- conversion from/to C array is not supported [\#502](https://github.com/nlohmann/json/issues/502) +- error C2338: could not find to\_json\(\) method in T's namespace [\#501](https://github.com/nlohmann/json/issues/501) +- Test suite fails in en\_GB.UTF-8 [\#500](https://github.com/nlohmann/json/issues/500) +- cannot use operator\[\] with number [\#499](https://github.com/nlohmann/json/issues/499) +- consider using \_\_cpp\_exceptions and/or \_\_EXCEPTIONS to disable/enable exception support [\#498](https://github.com/nlohmann/json/issues/498) +- Stack-overflow \(OSS-Fuzz issue 814\) [\#497](https://github.com/nlohmann/json/issues/497) +- Using in Unreal Engine - handling custom types conversion [\#495](https://github.com/nlohmann/json/issues/495) +- Conversion from vector\ to json fails to build [\#494](https://github.com/nlohmann/json/issues/494) +- fill\_line\_buffer incorrectly tests m\_stream for eof but not fail or bad bits [\#493](https://github.com/nlohmann/json/issues/493) +- Compiling with \_GLIBCXX\_DEBUG yields iterator-comparison warnings during tests [\#492](https://github.com/nlohmann/json/issues/492) +- crapy interface [\#491](https://github.com/nlohmann/json/issues/491) +- Fix Visual Studo 2013 builds. [\#490](https://github.com/nlohmann/json/issues/490) +- Failed to compile with -D\_GLIBCXX\_PARALLEL [\#489](https://github.com/nlohmann/json/issues/489) +- Input several field with the same name [\#488](https://github.com/nlohmann/json/issues/488) +- read in .json file yields strange sizes [\#487](https://github.com/nlohmann/json/issues/487) +- json::value\_t can't be a map's key type in VC++ 2015 [\#486](https://github.com/nlohmann/json/issues/486) +- Using fifo\_map [\#485](https://github.com/nlohmann/json/issues/485) +- Cannot get float pointer for value stored as `0` [\#484](https://github.com/nlohmann/json/issues/484) +- byte string support [\#483](https://github.com/nlohmann/json/issues/483) +- https://github.com/nlohmann/json\#execute-unit-tests [\#481](https://github.com/nlohmann/json/issues/481) +- Remove deprecated constructor basic\_json\(std::istream&\) [\#480](https://github.com/nlohmann/json/issues/480) +- writing the binary json file? [\#479](https://github.com/nlohmann/json/issues/479) +- CBOR/MessagePack from uint8\_t \* and size [\#478](https://github.com/nlohmann/json/issues/478) +- Streaming binary representations [\#477](https://github.com/nlohmann/json/issues/477) +- Reuse memory in to\_cbor and to\_msgpack functions [\#476](https://github.com/nlohmann/json/issues/476) +- Error Using JSON Library with arrays C++ [\#475](https://github.com/nlohmann/json/issues/475) +- Moving forward to version 3.0.0 [\#474](https://github.com/nlohmann/json/issues/474) +- Inconsistent behavior in conversion to array type [\#473](https://github.com/nlohmann/json/issues/473) +- Create a \[key:member\_pointer\] map to ease parsing custom types [\#471](https://github.com/nlohmann/json/issues/471) +- MSVC 2015 update 2 [\#469](https://github.com/nlohmann/json/issues/469) +- VS2017 implicit to std::string conversion fix. [\#464](https://github.com/nlohmann/json/issues/464) +- How to make sure a string or string literal is a valid JSON? [\#458](https://github.com/nlohmann/json/issues/458) +- basic\_json templated on a "policy" class [\#456](https://github.com/nlohmann/json/issues/456) +- json::value\(const json\_pointer&, ValueType\) requires exceptions to return the default value. [\#440](https://github.com/nlohmann/json/issues/440) +- is it possible merge two json object [\#428](https://github.com/nlohmann/json/issues/428) +- Is it possible to turn this into a shared library? [\#420](https://github.com/nlohmann/json/issues/420) +- Further thoughts on performance improvements [\#418](https://github.com/nlohmann/json/issues/418) +- nan number stored as null [\#388](https://github.com/nlohmann/json/issues/388) +- Behavior of operator\>\> should more closely resemble that of built-in overloads. [\#367](https://github.com/nlohmann/json/issues/367) +- Request: range-based-for over a json-object to expose .first/.second [\#350](https://github.com/nlohmann/json/issues/350) +- feature wish: JSONPath [\#343](https://github.com/nlohmann/json/issues/343) +- UTF-8/Unicode escape and dump [\#330](https://github.com/nlohmann/json/issues/330) +- Serialized value not always can be parsed. [\#329](https://github.com/nlohmann/json/issues/329) +- Is there a way to forward declare nlohmann::json? [\#314](https://github.com/nlohmann/json/issues/314) +- Exception line [\#301](https://github.com/nlohmann/json/issues/301) +- Do not throw exception when default\_value's type does not match the actual type [\#278](https://github.com/nlohmann/json/issues/278) +- dump\(\) method doesn't work with a custom allocator [\#268](https://github.com/nlohmann/json/issues/268) +- Readme documentation enhancements [\#248](https://github.com/nlohmann/json/issues/248) +- Use user-defined exceptions [\#244](https://github.com/nlohmann/json/issues/244) +- Incorrect C++11 allocator model support [\#161](https://github.com/nlohmann/json/issues/161) + +## [v2.1.1](https://github.com/nlohmann/json/releases/tag/v2.1.1) (2017-02-25) + +[Full Changelog](https://github.com/nlohmann/json/compare/2.1.1...v2.1.1) + +- Speedup CI builds using cotire [\#461](https://github.com/nlohmann/json/pull/461) ([tusharpm](https://github.com/tusharpm)) +- TurpentineDistillery feature/locale independent str to num [\#450](https://github.com/nlohmann/json/pull/450) ([nlohmann](https://github.com/nlohmann)) +- README: adjust boost::optional example [\#439](https://github.com/nlohmann/json/pull/439) ([jaredgrubb](https://github.com/jaredgrubb)) +- fix \#414 - comparing to 0 literal [\#415](https://github.com/nlohmann/json/pull/415) ([stanmihai4](https://github.com/stanmihai4)) +- locale-independent num-to-str [\#378](https://github.com/nlohmann/json/pull/378) ([TurpentineDistillery](https://github.com/TurpentineDistillery)) + +## [2.1.1](https://github.com/nlohmann/json/releases/tag/2.1.1) (2017-02-25) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.1.0...2.1.1) + +- warning in the library [\#472](https://github.com/nlohmann/json/issues/472) +- How to create an array of Objects? [\#470](https://github.com/nlohmann/json/issues/470) +- \[Bug?\] Cannot get int pointer, but int64\_t works [\#468](https://github.com/nlohmann/json/issues/468) +- Illegal indirection [\#467](https://github.com/nlohmann/json/issues/467) +- in vs can't find linkageId [\#466](https://github.com/nlohmann/json/issues/466) +- Roundtrip error while parsing "1000000000000000010E5" [\#465](https://github.com/nlohmann/json/issues/465) +- C4996 error and warning with Visual Studio [\#463](https://github.com/nlohmann/json/issues/463) +- Support startIndex for from\_cbor/from\_msgpack [\#462](https://github.com/nlohmann/json/issues/462) +- question: monospace font used in feature slideshow? [\#460](https://github.com/nlohmann/json/issues/460) +- Object.keys\(\) [\#459](https://github.com/nlohmann/json/issues/459) +- Use “, “ as delimiter for json-objects. [\#457](https://github.com/nlohmann/json/issues/457) +- Enum -\> string during serialization and vice versa [\#455](https://github.com/nlohmann/json/issues/455) +- doubles are printed as integers [\#454](https://github.com/nlohmann/json/issues/454) +- Warnings with Visual Studio c++ \(VS2015 Update 3\) [\#453](https://github.com/nlohmann/json/issues/453) +- Heap-buffer-overflow \(OSS-Fuzz issue 585\) [\#452](https://github.com/nlohmann/json/issues/452) +- use of undeclared identifier 'UINT8\_MAX' [\#451](https://github.com/nlohmann/json/issues/451) +- Question on the lifetime managment of objects at the lower levels [\#449](https://github.com/nlohmann/json/issues/449) +- Json should not be constructible with 'json\*' [\#448](https://github.com/nlohmann/json/issues/448) +- Move value\_t to namespace scope [\#447](https://github.com/nlohmann/json/issues/447) +- Typo in README.md [\#446](https://github.com/nlohmann/json/issues/446) +- make check compilation is unneccesarily slow [\#445](https://github.com/nlohmann/json/issues/445) +- Problem in dump\(\) in json.h caused by ss.imbue [\#444](https://github.com/nlohmann/json/issues/444) +- I want to create Windows Application in Visual Studio 2015 c++, and i have a problem [\#443](https://github.com/nlohmann/json/issues/443) +- Implicit conversion issues [\#442](https://github.com/nlohmann/json/issues/442) +- Parsing of floats locale dependent [\#302](https://github.com/nlohmann/json/issues/302) + +## [v2.1.0](https://github.com/nlohmann/json/releases/tag/v2.1.0) (2017-01-28) + +[Full Changelog](https://github.com/nlohmann/json/compare/2.1.0...v2.1.0) + +- conversion from/to user-defined types [\#435](https://github.com/nlohmann/json/pull/435) ([nlohmann](https://github.com/nlohmann)) +- Fix documentation error [\#430](https://github.com/nlohmann/json/pull/430) ([vjon](https://github.com/vjon)) + +## [2.1.0](https://github.com/nlohmann/json/releases/tag/2.1.0) (2017-01-28) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.10...2.1.0) + +- Parsing multiple JSON objects from a string or stream [\#438](https://github.com/nlohmann/json/issues/438) +- Use-of-uninitialized-value \(OSS-Fuzz issue 477\) [\#437](https://github.com/nlohmann/json/issues/437) +- add `reserve` function for array to reserve memory before adding json values into it [\#436](https://github.com/nlohmann/json/issues/436) +- Typo in examples page [\#434](https://github.com/nlohmann/json/issues/434) +- avoid malformed json [\#433](https://github.com/nlohmann/json/issues/433) +- How to add json objects to a map? [\#432](https://github.com/nlohmann/json/issues/432) +- create json instance from raw json \(unsigned char\*\) [\#431](https://github.com/nlohmann/json/issues/431) +- Getting std::invalid\_argument: stream error when following example [\#429](https://github.com/nlohmann/json/issues/429) +- Forward declare-only header? [\#427](https://github.com/nlohmann/json/issues/427) +- Implicit conversion from array to object [\#425](https://github.com/nlohmann/json/issues/425) +- error C4996: 'strerror' when reading file [\#422](https://github.com/nlohmann/json/issues/422) +- Get an error - JSON pointer must be empty or begin with '/' [\#421](https://github.com/nlohmann/json/issues/421) +- size parameter for parse\(\) [\#419](https://github.com/nlohmann/json/issues/419) +- json.hpp forcibly defines GCC\_VERSION [\#417](https://github.com/nlohmann/json/issues/417) +- Use-of-uninitialized-value \(OSS-Fuzz issue 377\) [\#416](https://github.com/nlohmann/json/issues/416) +- comparing to 0 literal [\#414](https://github.com/nlohmann/json/issues/414) +- Single char converted to ASCII code instead of string [\#413](https://github.com/nlohmann/json/issues/413) +- How to know if a string was parsed as utf-8? [\#406](https://github.com/nlohmann/json/issues/406) +- Overloaded += to add objects to an array makes no sense? [\#404](https://github.com/nlohmann/json/issues/404) +- Finding a value in an array [\#399](https://github.com/nlohmann/json/issues/399) +- add release information in static function [\#397](https://github.com/nlohmann/json/issues/397) +- Optimize memory usage of json objects in combination with binary serialization [\#373](https://github.com/nlohmann/json/issues/373) +- Conversion operators not considered [\#369](https://github.com/nlohmann/json/issues/369) +- Append ".0" to serialized floating\_point values that are digits-only. [\#362](https://github.com/nlohmann/json/issues/362) +- Add a customization point for user-defined types [\#328](https://github.com/nlohmann/json/issues/328) +- Conformance report for reference [\#307](https://github.com/nlohmann/json/issues/307) +- Document the best way to serialize/deserialize user defined types to json [\#298](https://github.com/nlohmann/json/issues/298) +- Add StringView template typename to basic\_json [\#297](https://github.com/nlohmann/json/issues/297) +- \[Improvement\] Add option to remove exceptions [\#296](https://github.com/nlohmann/json/issues/296) +- Performance in miloyip/nativejson-benchmark [\#202](https://github.com/nlohmann/json/issues/202) + +## [v2.0.10](https://github.com/nlohmann/json/releases/tag/v2.0.10) (2017-01-02) + +[Full Changelog](https://github.com/nlohmann/json/compare/2.0.10...v2.0.10) + +- Feature/clang sanitize [\#410](https://github.com/nlohmann/json/pull/410) ([Daniel599](https://github.com/Daniel599)) +- Add Doozer build badge [\#400](https://github.com/nlohmann/json/pull/400) ([andoma](https://github.com/andoma)) + +## [2.0.10](https://github.com/nlohmann/json/releases/tag/2.0.10) (2017-01-02) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.9...2.0.10) + +- Heap-buffer-overflow \(OSS-Fuzz issue 367\) [\#412](https://github.com/nlohmann/json/issues/412) +- Heap-buffer-overflow \(OSS-Fuzz issue 366\) [\#411](https://github.com/nlohmann/json/issues/411) +- Use-of-uninitialized-value \(OSS-Fuzz issue 347\) [\#409](https://github.com/nlohmann/json/issues/409) +- Heap-buffer-overflow \(OSS-Fuzz issue 344\) [\#408](https://github.com/nlohmann/json/issues/408) +- Heap-buffer-overflow \(OSS-Fuzz issue 343\) [\#407](https://github.com/nlohmann/json/issues/407) +- Heap-buffer-overflow \(OSS-Fuzz issue 342\) [\#405](https://github.com/nlohmann/json/issues/405) +- strerror throwing error in compiler VS2015 [\#403](https://github.com/nlohmann/json/issues/403) +- json::parse of std::string being underlined by Visual Studio [\#402](https://github.com/nlohmann/json/issues/402) +- Explicitly getting string without .dump\(\) [\#401](https://github.com/nlohmann/json/issues/401) +- Possible to speed up json::parse? [\#398](https://github.com/nlohmann/json/issues/398) +- the alphabetic order in the code influence console\_output. [\#396](https://github.com/nlohmann/json/issues/396) +- Execute tests with clang sanitizers [\#394](https://github.com/nlohmann/json/issues/394) +- Check if library can be used with ETL [\#361](https://github.com/nlohmann/json/issues/361) + +## [v2.0.9](https://github.com/nlohmann/json/releases/tag/v2.0.9) (2016-12-16) + +[Full Changelog](https://github.com/nlohmann/json/compare/2.0.9...v2.0.9) + +- Replace class iterator and const\_iterator by using a single template class to reduce code. [\#395](https://github.com/nlohmann/json/pull/395) ([Bosswestfalen](https://github.com/Bosswestfalen)) +- Clang: quiet a warning [\#391](https://github.com/nlohmann/json/pull/391) ([jaredgrubb](https://github.com/jaredgrubb)) +- Fix issue \#380: Signed integer overflow check [\#390](https://github.com/nlohmann/json/pull/390) ([qwename](https://github.com/qwename)) + +## [2.0.9](https://github.com/nlohmann/json/releases/tag/2.0.9) (2016-12-16) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.8...2.0.9) + +- \#pragma GCC diagnostic ignored "-Wdocumentation" [\#393](https://github.com/nlohmann/json/issues/393) +- How to parse this json file and write separate sub object as json files? [\#392](https://github.com/nlohmann/json/issues/392) +- Integer-overflow \(OSS-Fuzz issue 267\) [\#389](https://github.com/nlohmann/json/issues/389) +- Implement indefinite-length types from RFC 7049 [\#387](https://github.com/nlohmann/json/issues/387) +- template parameter "T" is not used in declaring the parameter types of function template [\#386](https://github.com/nlohmann/json/issues/386) +- Serializing json instances containing already serialized string values without escaping [\#385](https://github.com/nlohmann/json/issues/385) +- Add test cases from RFC 7049 [\#384](https://github.com/nlohmann/json/issues/384) +- Add a table of contents to the README file [\#383](https://github.com/nlohmann/json/issues/383) +- Update FAQ section in the guidelines for contributing [\#382](https://github.com/nlohmann/json/issues/382) +- Allow for forward declaring nlohmann::json [\#381](https://github.com/nlohmann/json/issues/381) +- Bug in overflow detection when parsing integers [\#380](https://github.com/nlohmann/json/issues/380) +- A unique name to mention the library? [\#377](https://github.com/nlohmann/json/issues/377) +- Non-unique keys in objects. [\#375](https://github.com/nlohmann/json/issues/375) +- Request: binary serialization/deserialization [\#358](https://github.com/nlohmann/json/issues/358) + +## [v2.0.8](https://github.com/nlohmann/json/releases/tag/v2.0.8) (2016-12-02) + +[Full Changelog](https://github.com/nlohmann/json/compare/2.0.8...v2.0.8) + +## [2.0.8](https://github.com/nlohmann/json/releases/tag/2.0.8) (2016-12-02) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.7...2.0.8) + +- Reading from file [\#374](https://github.com/nlohmann/json/issues/374) +- Compiler warnings? [\#372](https://github.com/nlohmann/json/issues/372) +- docs: how to release a json object in memory? [\#371](https://github.com/nlohmann/json/issues/371) +- crash in dump [\#370](https://github.com/nlohmann/json/issues/370) +- Coverity issue \(FORWARD\_NULL\) in lexer\(std::istream& s\) [\#368](https://github.com/nlohmann/json/issues/368) +- json::parse on failed stream gets stuck [\#366](https://github.com/nlohmann/json/issues/366) +- Performance improvements [\#365](https://github.com/nlohmann/json/issues/365) +- 'to\_string' is not a member of 'std' [\#364](https://github.com/nlohmann/json/issues/364) +- Crash in dump\(\) from a static object [\#359](https://github.com/nlohmann/json/issues/359) +- json::parse\(...\) vs json j; j.parse\(...\) [\#357](https://github.com/nlohmann/json/issues/357) +- Hi, is there any method to dump json to string with the insert order rather than alphabets [\#356](https://github.com/nlohmann/json/issues/356) +- Provide an example of reading from an json with only a key that has an array of strings. [\#354](https://github.com/nlohmann/json/issues/354) +- Request: access with default value. [\#353](https://github.com/nlohmann/json/issues/353) +- {} and \[\] causes parser error. [\#352](https://github.com/nlohmann/json/issues/352) +- Reading a JSON file into a JSON object [\#351](https://github.com/nlohmann/json/issues/351) +- Request: 'emplace\_back' [\#349](https://github.com/nlohmann/json/issues/349) +- Is it possible to stream data through the json parser without storing everything in memory? [\#347](https://github.com/nlohmann/json/issues/347) +- pure virtual conversion operator [\#346](https://github.com/nlohmann/json/issues/346) +- Floating point precision lost [\#345](https://github.com/nlohmann/json/issues/345) +- unit-conversions SIGSEGV on armv7hl [\#303](https://github.com/nlohmann/json/issues/303) +- Coverity scan fails [\#299](https://github.com/nlohmann/json/issues/299) +- Using QString as string type [\#274](https://github.com/nlohmann/json/issues/274) + +## [v2.0.7](https://github.com/nlohmann/json/releases/tag/v2.0.7) (2016-11-02) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.6...v2.0.7) + +- JSON5 [\#348](https://github.com/nlohmann/json/issues/348) +- Check "Parsing JSON is a Minefield" [\#344](https://github.com/nlohmann/json/issues/344) +- Allow hex numbers [\#342](https://github.com/nlohmann/json/issues/342) +- Convert strings to numbers [\#341](https://github.com/nlohmann/json/issues/341) +- ""-operators ignore the length parameter [\#340](https://github.com/nlohmann/json/issues/340) +- JSON into std::tuple [\#339](https://github.com/nlohmann/json/issues/339) +- JSON into vector [\#335](https://github.com/nlohmann/json/issues/335) +- Installing with Homebrew on Mac Errors \(El Capitan\) [\#331](https://github.com/nlohmann/json/issues/331) +- g++ make check results in error [\#312](https://github.com/nlohmann/json/issues/312) +- Cannot convert from 'json' to 'char' [\#276](https://github.com/nlohmann/json/issues/276) +- Please add a Pretty-Print option for arrays to stay always in one line [\#229](https://github.com/nlohmann/json/issues/229) +- Conversion to STL map\\> gives error [\#220](https://github.com/nlohmann/json/issues/220) +- std::unorderd\_map cannot be used as ObjectType [\#164](https://github.com/nlohmann/json/issues/164) + +- fix minor grammar/style issue in README.md [\#336](https://github.com/nlohmann/json/pull/336) ([seeekr](https://github.com/seeekr)) + +## [v2.0.6](https://github.com/nlohmann/json/releases/tag/v2.0.6) (2016-10-15) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.5...v2.0.6) + +- How to handle json files? [\#333](https://github.com/nlohmann/json/issues/333) +- This file requires compiler and library support .... [\#332](https://github.com/nlohmann/json/issues/332) +- Segmentation fault on saving json to file [\#326](https://github.com/nlohmann/json/issues/326) +- parse error - unexpected \ with 2.0.5 [\#325](https://github.com/nlohmann/json/issues/325) +- Add nested object capability to pointers [\#323](https://github.com/nlohmann/json/issues/323) +- Fix usage examples' comments for std::multiset [\#322](https://github.com/nlohmann/json/issues/322) +- json\_unit runs forever when executed in build directory [\#319](https://github.com/nlohmann/json/issues/319) +- Visual studio 2015 update3 true != TRUE [\#317](https://github.com/nlohmann/json/issues/317) +- releasing single header file in compressed format [\#316](https://github.com/nlohmann/json/issues/316) +- json object from std::ifstream [\#315](https://github.com/nlohmann/json/issues/315) + +- make has\_mapped\_type struct friendly [\#324](https://github.com/nlohmann/json/pull/324) ([vpetrigo](https://github.com/vpetrigo)) +- Fix usage examples' comments for std::multiset [\#321](https://github.com/nlohmann/json/pull/321) ([vasild](https://github.com/vasild)) +- Include dir relocation [\#318](https://github.com/nlohmann/json/pull/318) ([ChristophJud](https://github.com/ChristophJud)) +- trivial documentation fix [\#313](https://github.com/nlohmann/json/pull/313) ([5tefan](https://github.com/5tefan)) + +## [v2.0.5](https://github.com/nlohmann/json/releases/tag/v2.0.5) (2016-09-14) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.4...v2.0.5) + +- \[feature request\]: schema validator and comments [\#311](https://github.com/nlohmann/json/issues/311) +- make json\_benchmarks no longer working in 2.0.4 [\#310](https://github.com/nlohmann/json/issues/310) +- Segmentation fault \(core dumped\) [\#309](https://github.com/nlohmann/json/issues/309) +- No matching member function for call to 'get\_impl' [\#308](https://github.com/nlohmann/json/issues/308) + +## [v2.0.4](https://github.com/nlohmann/json/releases/tag/v2.0.4) (2016-09-11) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.3...v2.0.4) + +- Parsing fails without space at end of file [\#306](https://github.com/nlohmann/json/issues/306) +- json schema validator [\#305](https://github.com/nlohmann/json/issues/305) +- Unused variable warning [\#304](https://github.com/nlohmann/json/issues/304) + +## [v2.0.3](https://github.com/nlohmann/json/releases/tag/v2.0.3) (2016-08-31) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.2...v2.0.3) + +- warning C4706: assignment within conditional expression [\#295](https://github.com/nlohmann/json/issues/295) +- Q: Is it possible to build json tree from already UTF8 encoded values? [\#293](https://github.com/nlohmann/json/issues/293) +- Equality operator results in array when assigned object [\#292](https://github.com/nlohmann/json/issues/292) +- Support for integers not from the range \[-\(2\*\*53\)+1, \(2\*\*53\)-1\] in parser [\#291](https://github.com/nlohmann/json/issues/291) +- Support for iterator-range parsing [\#290](https://github.com/nlohmann/json/issues/290) +- Horribly inconsistent behavior between const/non-const reference in operator \[\] \(\) [\#289](https://github.com/nlohmann/json/issues/289) +- Silently get numbers into smaller types [\#288](https://github.com/nlohmann/json/issues/288) +- Incorrect parsing of large int64\_t numbers [\#287](https://github.com/nlohmann/json/issues/287) +- \[question\]: macro to disable floating point support [\#284](https://github.com/nlohmann/json/issues/284) + +- unit-constructor1.cpp: Fix floating point truncation warning [\#300](https://github.com/nlohmann/json/pull/300) ([t-b](https://github.com/t-b)) + +## [v2.0.2](https://github.com/nlohmann/json/releases/tag/v2.0.2) (2016-07-31) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.1...v2.0.2) + +- can function dump\(\) return string in the order I push in the json object ? [\#286](https://github.com/nlohmann/json/issues/286) +- Error on the Mac: Undefined symbols for architecture x86\_64 [\#285](https://github.com/nlohmann/json/issues/285) +- value\(\) does not work with \_json\_pointer types [\#283](https://github.com/nlohmann/json/issues/283) +- Build error for std::int64 [\#282](https://github.com/nlohmann/json/issues/282) +- strings can't be accessed after dump\(\)-\>parse\(\) - type is lost [\#281](https://github.com/nlohmann/json/issues/281) +- Easy serialization of classes [\#280](https://github.com/nlohmann/json/issues/280) +- recursive data structures [\#277](https://github.com/nlohmann/json/issues/277) +- hexify\(\) function emits conversion warning [\#270](https://github.com/nlohmann/json/issues/270) + +- let the makefile choose the correct sed [\#279](https://github.com/nlohmann/json/pull/279) ([murinicanor](https://github.com/murinicanor)) +- Update hexify to use array lookup instead of ternary \(\#270\) [\#275](https://github.com/nlohmann/json/pull/275) ([dtoma](https://github.com/dtoma)) + +## [v2.0.1](https://github.com/nlohmann/json/releases/tag/v2.0.1) (2016-06-28) + +[Full Changelog](https://github.com/nlohmann/json/compare/v2.0.0...v2.0.1) + +- Compilation error. [\#273](https://github.com/nlohmann/json/issues/273) +- dump\(\) performance degradation in v2 [\#272](https://github.com/nlohmann/json/issues/272) + +- fixed a tiny typo [\#271](https://github.com/nlohmann/json/pull/271) ([feroldi](https://github.com/feroldi)) + +## [v2.0.0](https://github.com/nlohmann/json/releases/tag/v2.0.0) (2016-06-23) + +[Full Changelog](https://github.com/nlohmann/json/compare/v1.1.0...v2.0.0) + +- json::diff generates incorrect patch when removing multiple array elements. [\#269](https://github.com/nlohmann/json/issues/269) +- Docs - What does Json\[key\] return? [\#267](https://github.com/nlohmann/json/issues/267) +- Compiler Errors With JSON.hpp [\#265](https://github.com/nlohmann/json/issues/265) +- Ambiguous push\_back and operator+= overloads [\#263](https://github.com/nlohmann/json/issues/263) +- Preseving order of items in json [\#262](https://github.com/nlohmann/json/issues/262) +- '\' char problem in strings [\#261](https://github.com/nlohmann/json/issues/261) +- VS2015 compile fail [\#260](https://github.com/nlohmann/json/issues/260) +- -Wconversion warning [\#259](https://github.com/nlohmann/json/issues/259) +- Maybe a bug [\#258](https://github.com/nlohmann/json/issues/258) +- Few tests failed on Visual C++ 2015 [\#257](https://github.com/nlohmann/json/issues/257) +- Access keys when iteration with new for loop C++11 [\#256](https://github.com/nlohmann/json/issues/256) +- multiline text values [\#255](https://github.com/nlohmann/json/issues/255) +- Error when using json in g++ [\#254](https://github.com/nlohmann/json/issues/254) +- is the release 2.0? [\#253](https://github.com/nlohmann/json/issues/253) +- concatenate objects [\#252](https://github.com/nlohmann/json/issues/252) +- Encoding [\#251](https://github.com/nlohmann/json/issues/251) +- Unable to build example for constructing json object with stringstreams [\#250](https://github.com/nlohmann/json/issues/250) +- Hexadecimal support [\#249](https://github.com/nlohmann/json/issues/249) +- Update long-term goals [\#246](https://github.com/nlohmann/json/issues/246) +- Contribution To This Json Project [\#245](https://github.com/nlohmann/json/issues/245) +- Trouble using parser with initial dictionary [\#243](https://github.com/nlohmann/json/issues/243) +- Unit test fails when doing a CMake out-of-tree build [\#241](https://github.com/nlohmann/json/issues/241) +- -Wconversion warnings [\#239](https://github.com/nlohmann/json/issues/239) +- Additional integration options [\#237](https://github.com/nlohmann/json/issues/237) +- .get\\(\) works for non spaced string but returns as array for spaced/longer strings [\#236](https://github.com/nlohmann/json/issues/236) +- ambiguous overload for 'push\_back' and 'operator+=' [\#235](https://github.com/nlohmann/json/issues/235) +- Can't use basic\_json::iterator as a base iterator for std::move\_iterator [\#233](https://github.com/nlohmann/json/issues/233) +- json object's creation can freezes execution [\#231](https://github.com/nlohmann/json/issues/231) +- Incorrect dumping of parsed numbers with exponents, but without decimal places [\#230](https://github.com/nlohmann/json/issues/230) +- double values are serialized with commas as decimal points [\#228](https://github.com/nlohmann/json/issues/228) +- Move semantics with std::initializer\_list [\#225](https://github.com/nlohmann/json/issues/225) +- replace emplace [\#224](https://github.com/nlohmann/json/issues/224) +- abort during getline in yyfill [\#223](https://github.com/nlohmann/json/issues/223) +- free\(\): invalid pointer error in GCC 5.2.1 [\#221](https://github.com/nlohmann/json/issues/221) +- Error compile Android NDK error: 'strtof' is not a member of 'std' [\#219](https://github.com/nlohmann/json/issues/219) +- Wrong link in the README.md [\#217](https://github.com/nlohmann/json/issues/217) +- Wide character strings not supported [\#216](https://github.com/nlohmann/json/issues/216) +- Memory allocations using range-based for loops [\#214](https://github.com/nlohmann/json/issues/214) +- would you like to support gcc 4.8.1? [\#211](https://github.com/nlohmann/json/issues/211) +- Reading concatenated json's from an istream [\#210](https://github.com/nlohmann/json/issues/210) +- Conflicting typedef of ssize\_t on Windows 32 bit when using Boost.Python [\#204](https://github.com/nlohmann/json/issues/204) +- Inconsistency between operator\[\] and push\_back [\#203](https://github.com/nlohmann/json/issues/203) +- Small bugs in json.hpp \(get\_number\) and unit.cpp \(non-standard integer type test\) [\#199](https://github.com/nlohmann/json/issues/199) +- GCC/clang floating point parsing bug in strtod\(\) [\#195](https://github.com/nlohmann/json/issues/195) +- What is within scope? [\#192](https://github.com/nlohmann/json/issues/192) +- Bugs in miloyip/nativejson-benchmark: roundtrips [\#187](https://github.com/nlohmann/json/issues/187) +- Floating point exceptions [\#181](https://github.com/nlohmann/json/issues/181) +- Integer conversion to unsigned [\#178](https://github.com/nlohmann/json/issues/178) +- map string string fails to compile [\#176](https://github.com/nlohmann/json/issues/176) +- In basic\_json::basic\_json\(const CompatibleArrayType& val\), the requirement of CompatibleArrayType is not strict enough. [\#174](https://github.com/nlohmann/json/issues/174) +- Provide a FAQ [\#163](https://github.com/nlohmann/json/issues/163) +- Implicit assignment to std::string fails [\#144](https://github.com/nlohmann/json/issues/144) + +- Fix Issue \#265 [\#266](https://github.com/nlohmann/json/pull/266) ([06needhamt](https://github.com/06needhamt)) +- Define CMake/CTest tests [\#247](https://github.com/nlohmann/json/pull/247) ([robertmrk](https://github.com/robertmrk)) +- Out of tree builds and a few other miscellaneous CMake cleanups. [\#242](https://github.com/nlohmann/json/pull/242) ([ChrisKitching](https://github.com/ChrisKitching)) +- Implement additional integration options [\#238](https://github.com/nlohmann/json/pull/238) ([robertmrk](https://github.com/robertmrk)) +- make serialization locale-independent [\#232](https://github.com/nlohmann/json/pull/232) ([nlohmann](https://github.com/nlohmann)) +- fixes \#223 by updating README.md [\#227](https://github.com/nlohmann/json/pull/227) ([kevin--](https://github.com/kevin--)) +- Use namespace std for int64\_t and uint64\_t [\#226](https://github.com/nlohmann/json/pull/226) ([lv-zheng](https://github.com/lv-zheng)) +- Added missing cerrno header to fix ERANGE compile error on android [\#222](https://github.com/nlohmann/json/pull/222) ([Teemperor](https://github.com/Teemperor)) +- Corrected readme [\#218](https://github.com/nlohmann/json/pull/218) ([Annihil](https://github.com/Annihil)) +- Create PULL\_REQUEST\_TEMPLATE.md [\#213](https://github.com/nlohmann/json/pull/213) ([whackashoe](https://github.com/whackashoe)) +- fixed noexcept; added constexpr [\#208](https://github.com/nlohmann/json/pull/208) ([nlohmann](https://github.com/nlohmann)) +- Add support for afl-fuzz testing [\#207](https://github.com/nlohmann/json/pull/207) ([mykter](https://github.com/mykter)) +- replaced ssize\_t occurrences with auto \(addresses \#204\) [\#205](https://github.com/nlohmann/json/pull/205) ([nlohmann](https://github.com/nlohmann)) +- Fixed issue \#199 - Small bugs in json.hpp \(get\_number\) and unit.cpp \(non-standard integer type test\) [\#200](https://github.com/nlohmann/json/pull/200) ([twelsby](https://github.com/twelsby)) +- Fix broken link [\#197](https://github.com/nlohmann/json/pull/197) ([vog](https://github.com/vog)) +- Issue \#195 - update Travis to Trusty due to gcc/clang strtod\(\) bug [\#196](https://github.com/nlohmann/json/pull/196) ([twelsby](https://github.com/twelsby)) +- Issue \#178 - Extending support to full uint64\_t/int64\_t range and unsigned type \(updated\) [\#193](https://github.com/nlohmann/json/pull/193) ([twelsby](https://github.com/twelsby)) + +## [v1.1.0](https://github.com/nlohmann/json/releases/tag/v1.1.0) (2016-01-24) + +[Full Changelog](https://github.com/nlohmann/json/compare/v1.0.0...v1.1.0) + +- Small error in pull \#185 [\#194](https://github.com/nlohmann/json/issues/194) +- Bugs in miloyip/nativejson-benchmark: floating-point parsing [\#186](https://github.com/nlohmann/json/issues/186) +- Floating point equality [\#185](https://github.com/nlohmann/json/issues/185) +- Unused variables in catch [\#180](https://github.com/nlohmann/json/issues/180) +- Typo in documentation [\#179](https://github.com/nlohmann/json/issues/179) +- JSON performance benchmark comparision [\#177](https://github.com/nlohmann/json/issues/177) +- Since re2c is often ignored in pull requests, it may make sense to make a contributing.md file [\#175](https://github.com/nlohmann/json/issues/175) +- Question about exceptions [\#173](https://github.com/nlohmann/json/issues/173) +- Android? [\#172](https://github.com/nlohmann/json/issues/172) +- Cannot index by key of type static constexpr const char\* [\#171](https://github.com/nlohmann/json/issues/171) +- Add assertions [\#168](https://github.com/nlohmann/json/issues/168) +- MSVC 2015 build fails when attempting to compare object\_t [\#167](https://github.com/nlohmann/json/issues/167) +- Member detector is not portable [\#166](https://github.com/nlohmann/json/issues/166) +- Unnecessary const\_cast [\#162](https://github.com/nlohmann/json/issues/162) +- Question about get\_ref\(\) [\#128](https://github.com/nlohmann/json/issues/128) +- range based for loop for objects [\#83](https://github.com/nlohmann/json/issues/83) +- Consider submitting this to the Boost Library Incubator [\#66](https://github.com/nlohmann/json/issues/66) + +- Fixed Issue \#186 - add strto\(f|d|ld\) overload wrappers, "-0.0" special case and FP trailing zero [\#191](https://github.com/nlohmann/json/pull/191) ([twelsby](https://github.com/twelsby)) +- Issue \#185 - remove approx\(\) and use \#pragma to kill warnings [\#190](https://github.com/nlohmann/json/pull/190) ([twelsby](https://github.com/twelsby)) +- Fixed Issue \#171 - added two extra template overloads of operator\[\] for T\* arguments [\#189](https://github.com/nlohmann/json/pull/189) ([twelsby](https://github.com/twelsby)) +- Fixed issue \#167 - removed operator ValueType\(\) condition for VS2015 [\#188](https://github.com/nlohmann/json/pull/188) ([twelsby](https://github.com/twelsby)) +- Implementation of get\_ref\(\) [\#184](https://github.com/nlohmann/json/pull/184) ([dariomt](https://github.com/dariomt)) +- Fixed some typos in CONTRIBUTING.md [\#182](https://github.com/nlohmann/json/pull/182) ([nibroc](https://github.com/nibroc)) + +## [v1.0.0](https://github.com/nlohmann/json/releases/tag/v1.0.0) (2015-12-27) + +[Full Changelog](https://github.com/nlohmann/json/compare/v1.0.0-rc1...v1.0.0) + +- add key name to exception [\#160](https://github.com/nlohmann/json/issues/160) +- Getting member discarding qualifyer [\#159](https://github.com/nlohmann/json/issues/159) +- basic\_json::iterator::value\(\) output includes quotes while basic\_json::iterator::key\(\) doesn't [\#158](https://github.com/nlohmann/json/issues/158) +- Indexing `const basic_json<>` with `const basic_string` [\#157](https://github.com/nlohmann/json/issues/157) +- token\_type\_name\(token\_type t\): not all control paths return a value [\#156](https://github.com/nlohmann/json/issues/156) +- prevent json.hpp from emitting compiler warnings [\#154](https://github.com/nlohmann/json/issues/154) +- json::parse\(string\) does not check utf8 bom [\#152](https://github.com/nlohmann/json/issues/152) +- unsigned 64bit values output as signed [\#151](https://github.com/nlohmann/json/issues/151) +- Wish feature: json5 [\#150](https://github.com/nlohmann/json/issues/150) +- Unable to compile on MSVC 2015 with SDL checking enabled: This function or variable may be unsafe. [\#149](https://github.com/nlohmann/json/issues/149) +- "Json Object" type does not keep object order [\#148](https://github.com/nlohmann/json/issues/148) +- dump\(\) convert strings encoded by utf-8 to shift-jis on windows 10. [\#147](https://github.com/nlohmann/json/issues/147) +- Unable to get field names in a json object [\#145](https://github.com/nlohmann/json/issues/145) +- Question: Is the use of incomplete type correct? [\#138](https://github.com/nlohmann/json/issues/138) +- json.hpp:5746:32: error: 'to\_string' is not a member of 'std' [\#136](https://github.com/nlohmann/json/issues/136) +- Bug in basic\_json::operator\[\] const overload [\#135](https://github.com/nlohmann/json/issues/135) +- wrong enable\_if for const pointer \(instead of pointer-to-const\) [\#134](https://github.com/nlohmann/json/issues/134) +- overload of at\(\) with default value [\#133](https://github.com/nlohmann/json/issues/133) +- Splitting source [\#132](https://github.com/nlohmann/json/issues/132) +- Question about get\_ptr\(\) [\#127](https://github.com/nlohmann/json/issues/127) +- Visual Studio 14 Debug assertion failed [\#125](https://github.com/nlohmann/json/issues/125) +- Memory leak in face of exceptions [\#118](https://github.com/nlohmann/json/issues/118) +- Find and Count for arrays [\#117](https://github.com/nlohmann/json/issues/117) +- dynamically constructing an arbitrarily nested object [\#114](https://github.com/nlohmann/json/issues/114) +- Returning any data type [\#113](https://github.com/nlohmann/json/issues/113) +- Compile error with g++ 4.9.3 cygwin 64-bit [\#112](https://github.com/nlohmann/json/issues/112) +- insert json array issue with gcc4.8.2 [\#110](https://github.com/nlohmann/json/issues/110) +- error: unterminated raw string [\#109](https://github.com/nlohmann/json/issues/109) +- vector\ copy constructor really weird [\#108](https://github.com/nlohmann/json/issues/108) +- \[clang-3.6.2\] string/sstream with number to json issue [\#107](https://github.com/nlohmann/json/issues/107) +- object field accessors [\#103](https://github.com/nlohmann/json/issues/103) +- v8pp and json [\#95](https://github.com/nlohmann/json/issues/95) +- Wishlist [\#65](https://github.com/nlohmann/json/issues/65) +- Windows/Visual Studio \(through 2013\) is unsupported [\#62](https://github.com/nlohmann/json/issues/62) + +- Replace sprintf with hex function, this fixes \#149 [\#153](https://github.com/nlohmann/json/pull/153) ([whackashoe](https://github.com/whackashoe)) +- Fix character skipping after a surrogate pair [\#146](https://github.com/nlohmann/json/pull/146) ([robertmrk](https://github.com/robertmrk)) +- Detect correctly pointer-to-const [\#137](https://github.com/nlohmann/json/pull/137) ([dariomt](https://github.com/dariomt)) +- disabled "CopyAssignable" test for MSVC in Debug mode, see \#125 [\#131](https://github.com/nlohmann/json/pull/131) ([dariomt](https://github.com/dariomt)) +- removed stream operator for iterator, resolution for \#125 [\#130](https://github.com/nlohmann/json/pull/130) ([dariomt](https://github.com/dariomt)) +- fixed typos in comments for examples [\#129](https://github.com/nlohmann/json/pull/129) ([dariomt](https://github.com/dariomt)) +- Remove superfluous inefficiency [\#126](https://github.com/nlohmann/json/pull/126) ([d-frey](https://github.com/d-frey)) +- remove invalid parameter '-stdlib=libc++' in CMakeLists.txt [\#124](https://github.com/nlohmann/json/pull/124) ([emvivre](https://github.com/emvivre)) +- exception-safe object creation, fixes \#118 [\#122](https://github.com/nlohmann/json/pull/122) ([d-frey](https://github.com/d-frey)) +- Fix small oversight. [\#121](https://github.com/nlohmann/json/pull/121) ([ColinH](https://github.com/ColinH)) +- Overload parse\(\) to accept an rvalue reference [\#120](https://github.com/nlohmann/json/pull/120) ([silverweed](https://github.com/silverweed)) +- Use the right variable name in doc string [\#115](https://github.com/nlohmann/json/pull/115) ([whoshuu](https://github.com/whoshuu)) + +## [v1.0.0-rc1](https://github.com/nlohmann/json/releases/tag/v1.0.0-rc1) (2015-07-26) + +[Full Changelog](https://github.com/nlohmann/json/compare/4502e7e51c0569419c26e75fbdd5748170603e54...v1.0.0-rc1) + +- Finish documenting the public interface in Doxygen [\#102](https://github.com/nlohmann/json/issues/102) +- Binary string causes numbers to be dumped as hex [\#101](https://github.com/nlohmann/json/issues/101) +- failed to iterator json object with reverse\_iterator [\#100](https://github.com/nlohmann/json/issues/100) +- 'noexcept' : unknown override specifier [\#99](https://github.com/nlohmann/json/issues/99) +- json float parsing problem [\#98](https://github.com/nlohmann/json/issues/98) +- Adjust wording to JSON RFC [\#97](https://github.com/nlohmann/json/issues/97) +- static analysis warnings [\#94](https://github.com/nlohmann/json/issues/94) +- reverse\_iterator operator inheritance problem [\#93](https://github.com/nlohmann/json/issues/93) +- init error [\#92](https://github.com/nlohmann/json/issues/92) +- access by \(const\) reference [\#91](https://github.com/nlohmann/json/issues/91) +- is\_integer and is\_float tests [\#90](https://github.com/nlohmann/json/issues/90) +- Nonstandard integer type [\#89](https://github.com/nlohmann/json/issues/89) +- static library build [\#84](https://github.com/nlohmann/json/issues/84) +- lexer::get\_number return NAN [\#82](https://github.com/nlohmann/json/issues/82) +- MinGW have no std::to\_string [\#80](https://github.com/nlohmann/json/issues/80) +- Incorrect behaviour of basic\_json::count method [\#78](https://github.com/nlohmann/json/issues/78) +- Invoking is\_array\(\) function creates "null" value [\#77](https://github.com/nlohmann/json/issues/77) +- dump\(\) / parse\(\) not idempotent [\#76](https://github.com/nlohmann/json/issues/76) +- Handle infinity and NaN cases [\#70](https://github.com/nlohmann/json/issues/70) +- errors in g++-4.8.1 [\#68](https://github.com/nlohmann/json/issues/68) +- Keys when iterating over objects [\#67](https://github.com/nlohmann/json/issues/67) +- Compilation results in tons of warnings [\#64](https://github.com/nlohmann/json/issues/64) +- Complete brief documentation [\#61](https://github.com/nlohmann/json/issues/61) +- Double quotation mark is not parsed correctly [\#60](https://github.com/nlohmann/json/issues/60) +- Get coverage back to 100% [\#58](https://github.com/nlohmann/json/issues/58) +- erase elements using iterators [\#57](https://github.com/nlohmann/json/issues/57) +- Removing item from array [\#56](https://github.com/nlohmann/json/issues/56) +- Serialize/Deserialize like PHP? [\#55](https://github.com/nlohmann/json/issues/55) +- Numbers as keys [\#54](https://github.com/nlohmann/json/issues/54) +- Why are elements alphabetized on key while iterating? [\#53](https://github.com/nlohmann/json/issues/53) +- Document erase, count, and iterators key and value [\#52](https://github.com/nlohmann/json/issues/52) +- Do not use std::to\_string [\#51](https://github.com/nlohmann/json/issues/51) +- Supported compilers [\#50](https://github.com/nlohmann/json/issues/50) +- Confused about iterating through json objects [\#49](https://github.com/nlohmann/json/issues/49) +- Use non-member begin/end [\#48](https://github.com/nlohmann/json/issues/48) +- Erase key [\#47](https://github.com/nlohmann/json/issues/47) +- Key iterator [\#46](https://github.com/nlohmann/json/issues/46) +- Add count member function [\#45](https://github.com/nlohmann/json/issues/45) +- Problem getting vector \(array\) of strings [\#44](https://github.com/nlohmann/json/issues/44) +- Compilation error due to assuming that private=public [\#43](https://github.com/nlohmann/json/issues/43) +- Use of deprecated implicit copy constructor [\#42](https://github.com/nlohmann/json/issues/42) +- Printing attribute names [\#39](https://github.com/nlohmann/json/issues/39) +- dumping a small number\_float just outputs 0.000000 [\#37](https://github.com/nlohmann/json/issues/37) +- find is error [\#32](https://github.com/nlohmann/json/issues/32) +- Avoid using spaces when encoding without pretty print [\#31](https://github.com/nlohmann/json/issues/31) +- Cannot encode long numbers [\#30](https://github.com/nlohmann/json/issues/30) +- segmentation fault when iterating over empty arrays/objects [\#28](https://github.com/nlohmann/json/issues/28) +- Creating an empty array [\#27](https://github.com/nlohmann/json/issues/27) +- Custom allocator support [\#25](https://github.com/nlohmann/json/issues/25) +- make the type of the used string container customizable [\#20](https://github.com/nlohmann/json/issues/20) +- Improper parsing of JSON string "\\" [\#17](https://github.com/nlohmann/json/issues/17) +- create a header-only version [\#16](https://github.com/nlohmann/json/issues/16) +- Don't return "const values" [\#15](https://github.com/nlohmann/json/issues/15) +- Add to\_string overload for indentation [\#13](https://github.com/nlohmann/json/issues/13) +- string parser does not recognize uncompliant strings [\#12](https://github.com/nlohmann/json/issues/12) +- possible double-free in find function [\#11](https://github.com/nlohmann/json/issues/11) +- UTF-8 encoding/deconding/testing [\#10](https://github.com/nlohmann/json/issues/10) +- move code into namespace [\#9](https://github.com/nlohmann/json/issues/9) +- free functions for explicit objects and arrays in initializer lists [\#8](https://github.com/nlohmann/json/issues/8) +- unique\_ptr for ownership [\#7](https://github.com/nlohmann/json/issues/7) +- Add unit tests [\#4](https://github.com/nlohmann/json/issues/4) +- Drop C++98 support [\#3](https://github.com/nlohmann/json/issues/3) +- Test case coverage [\#2](https://github.com/nlohmann/json/issues/2) +- Runtime error in Travis job [\#1](https://github.com/nlohmann/json/issues/1) + +- Keyword 'inline' is useless when member functions are defined in headers [\#87](https://github.com/nlohmann/json/pull/87) ([ahamez](https://github.com/ahamez)) +- Remove useless typename [\#86](https://github.com/nlohmann/json/pull/86) ([ahamez](https://github.com/ahamez)) +- Avoid warning with Xcode's clang [\#85](https://github.com/nlohmann/json/pull/85) ([ahamez](https://github.com/ahamez)) +- Fix typos [\#73](https://github.com/nlohmann/json/pull/73) ([aqnouch](https://github.com/aqnouch)) +- Replace `default_callback` function with `nullptr` and check for null… [\#72](https://github.com/nlohmann/json/pull/72) ([aburgh](https://github.com/aburgh)) +- support enum [\#71](https://github.com/nlohmann/json/pull/71) ([likebeta](https://github.com/likebeta)) +- Fix performance regression introduced with the parsing callback feature. [\#69](https://github.com/nlohmann/json/pull/69) ([aburgh](https://github.com/aburgh)) +- Improve the implementations of the comparission-operators [\#63](https://github.com/nlohmann/json/pull/63) ([Florianjw](https://github.com/Florianjw)) +- Fix compilation of json\_unit with GCC 5 [\#59](https://github.com/nlohmann/json/pull/59) ([dkopecek](https://github.com/dkopecek)) +- Parse streams incrementally. [\#40](https://github.com/nlohmann/json/pull/40) ([aburgh](https://github.com/aburgh)) +- Feature/small float serialization [\#38](https://github.com/nlohmann/json/pull/38) ([jrandall](https://github.com/jrandall)) +- template version with re2c scanner [\#36](https://github.com/nlohmann/json/pull/36) ([nlohmann](https://github.com/nlohmann)) +- more descriptive documentation in example [\#33](https://github.com/nlohmann/json/pull/33) ([luxe](https://github.com/luxe)) +- Fix string conversion under Clang [\#26](https://github.com/nlohmann/json/pull/26) ([wancw](https://github.com/wancw)) +- Fixed dumping of strings [\#24](https://github.com/nlohmann/json/pull/24) ([Teemperor](https://github.com/Teemperor)) +- Added a remark to the readme that coverage is GCC only for now [\#23](https://github.com/nlohmann/json/pull/23) ([Teemperor](https://github.com/Teemperor)) +- Unicode escaping [\#22](https://github.com/nlohmann/json/pull/22) ([Teemperor](https://github.com/Teemperor)) +- Implemented the JSON spec for string parsing for everything but the \uXXXX escaping [\#21](https://github.com/nlohmann/json/pull/21) ([Teemperor](https://github.com/Teemperor)) +- add the std iterator typedefs to iterator and const\_iterator [\#19](https://github.com/nlohmann/json/pull/19) ([kirkshoop](https://github.com/kirkshoop)) +- Fixed escaped quotes [\#18](https://github.com/nlohmann/json/pull/18) ([Teemperor](https://github.com/Teemperor)) +- Fix double delete on std::bad\_alloc exception [\#14](https://github.com/nlohmann/json/pull/14) ([elliotgoodrich](https://github.com/elliotgoodrich)) +- Added CMake and lcov [\#6](https://github.com/nlohmann/json/pull/6) ([Teemperor](https://github.com/Teemperor)) +- Version 2.0 [\#5](https://github.com/nlohmann/json/pull/5) ([nlohmann](https://github.com/nlohmann)) + + + +\* *This Changelog was automatically generated by [github_changelog_generator](https://github.com/github-changelog-generator/github-changelog-generator)* diff --git a/thirdparty/nlohmann_json/LICENSE.MIT b/thirdparty/nlohmann_json/LICENSE.MIT new file mode 100644 index 000000000..f0622d6dc --- /dev/null +++ b/thirdparty/nlohmann_json/LICENSE.MIT @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2013-2021 Niels Lohmann + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/thirdparty/nlohmann_json/README.md b/thirdparty/nlohmann_json/README.md new file mode 100644 index 000000000..0276bc437 --- /dev/null +++ b/thirdparty/nlohmann_json/README.md @@ -0,0 +1,1705 @@ +[![JSON for Modern C++](https://raw.githubusercontent.com/nlohmann/json/master/doc/json.gif)](https://github.com/nlohmann/json/releases) + +[![Build Status](https://app.travis-ci.com/nlohmann/json.svg?branch=develop)](https://app.travis-ci.com/nlohmann/json) +[![Build Status](https://ci.appveyor.com/api/projects/status/1acb366xfyg3qybk/branch/develop?svg=true)](https://ci.appveyor.com/project/nlohmann/json) +[![Ubuntu](https://github.com/nlohmann/json/workflows/Ubuntu/badge.svg)](https://github.com/nlohmann/json/actions?query=workflow%3AUbuntu) +[![macOS](https://github.com/nlohmann/json/workflows/macOS/badge.svg)](https://github.com/nlohmann/json/actions?query=workflow%3AmacOS) +[![Windows](https://github.com/nlohmann/json/workflows/Windows/badge.svg)](https://github.com/nlohmann/json/actions?query=workflow%3AWindows) +[![Coverage Status](https://coveralls.io/repos/github/nlohmann/json/badge.svg?branch=develop)](https://coveralls.io/github/nlohmann/json?branch=develop) +[![Coverity Scan Build Status](https://scan.coverity.com/projects/5550/badge.svg)](https://scan.coverity.com/projects/nlohmann-json) +[![Codacy Badge](https://app.codacy.com/project/badge/Grade/e0d1a9d5d6fd46fcb655c4cb930bb3e8)](https://www.codacy.com/gh/nlohmann/json/dashboard?utm_source=github.com&utm_medium=referral&utm_content=nlohmann/json&utm_campaign=Badge_Grade) +[![Language grade: C/C++](https://img.shields.io/lgtm/grade/cpp/g/nlohmann/json.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/nlohmann/json/context:cpp) +[![Fuzzing Status](https://oss-fuzz-build-logs.storage.googleapis.com/badges/json.svg)](https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:json) +[![Try online](https://img.shields.io/badge/try-online-blue.svg)](https://wandbox.org/permlink/7p8sQckddTc0Y81T) +[![Documentation](https://img.shields.io/badge/docs-doxygen-blue.svg)](https://nlohmann.github.io/json/doxygen/index.html) +[![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/nlohmann/json/master/LICENSE.MIT) +[![GitHub Releases](https://img.shields.io/github/release/nlohmann/json.svg)](https://github.com/nlohmann/json/releases) +[![GitHub Downloads](https://img.shields.io/github/downloads/nlohmann/json/total)](https://github.com/nlohmann/json/releases) +[![GitHub Issues](https://img.shields.io/github/issues/nlohmann/json.svg)](https://github.com/nlohmann/json/issues) +[![Average time to resolve an issue](https://isitmaintained.com/badge/resolution/nlohmann/json.svg)](https://isitmaintained.com/project/nlohmann/json "Average time to resolve an issue") +[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/289/badge)](https://bestpractices.coreinfrastructure.org/projects/289) +[![GitHub Sponsors](https://img.shields.io/badge/GitHub-Sponsors-ff69b4)](https://github.com/sponsors/nlohmann) + +- [Design goals](#design-goals) +- [Sponsors](#sponsors) +- [Support](#support) ([documentation](https://json.nlohmann.me), [FAQ](http://127.0.0.1:8000/home/faq/), [discussions](https://github.com/nlohmann/json/discussions), [API](https://json.nlohmann.me/api/basic_json/), [bug issues](https://github.com/nlohmann/json/issues)) +- [Examples](#examples) + - [JSON as first-class data type](#json-as-first-class-data-type) + - [Serialization / Deserialization](#serialization--deserialization) + - [STL-like access](#stl-like-access) + - [Conversion from STL containers](#conversion-from-stl-containers) + - [JSON Pointer and JSON Patch](#json-pointer-and-json-patch) + - [JSON Merge Patch](#json-merge-patch) + - [Implicit conversions](#implicit-conversions) + - [Conversions to/from arbitrary types](#arbitrary-types-conversions) + - [Specializing enum conversion](#specializing-enum-conversion) + - [Binary formats (BSON, CBOR, MessagePack, and UBJSON)](#binary-formats-bson-cbor-messagepack-and-ubjson) +- [Supported compilers](#supported-compilers) +- [Integration](#integration) + - [CMake](#cmake) + - [Package Managers](#package-managers) + - [Pkg-config](#pkg-config) +- [License](#license) +- [Contact](#contact) +- [Thanks](#thanks) +- [Used third-party tools](#used-third-party-tools) +- [Projects using JSON for Modern C++](#projects-using-json-for-modern-c) +- [Notes](#notes) +- [Execute unit tests](#execute-unit-tests) + +## Design goals + +There are myriads of [JSON](https://json.org) libraries out there, and each may even have its reason to exist. Our class had these design goals: + +- **Intuitive syntax**. In languages such as Python, JSON feels like a first class data type. We used all the operator magic of modern C++ to achieve the same feeling in your code. Check out the [examples below](#examples) and you'll know what I mean. + +- **Trivial integration**. Our whole code consists of a single header file [`json.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json.hpp). That's it. No library, no subproject, no dependencies, no complex build system. The class is written in vanilla C++11. All in all, everything should require no adjustment of your compiler flags or project settings. + +- **Serious testing**. Our class is heavily [unit-tested](https://github.com/nlohmann/json/tree/develop/test/src) and covers [100%](https://coveralls.io/r/nlohmann/json) of the code, including all exceptional behavior. Furthermore, we checked with [Valgrind](https://valgrind.org) and the [Clang Sanitizers](https://clang.llvm.org/docs/index.html) that there are no memory leaks. [Google OSS-Fuzz](https://github.com/google/oss-fuzz/tree/master/projects/json) additionally runs fuzz tests against all parsers 24/7, effectively executing billions of tests so far. To maintain high quality, the project is following the [Core Infrastructure Initiative (CII) best practices](https://bestpractices.coreinfrastructure.org/projects/289). + +Other aspects were not so important to us: + +- **Memory efficiency**. Each JSON object has an overhead of one pointer (the maximal size of a union) and one enumeration element (1 byte). The default generalization uses the following C++ data types: `std::string` for strings, `int64_t`, `uint64_t` or `double` for numbers, `std::map` for objects, `std::vector` for arrays, and `bool` for Booleans. However, you can template the generalized class `basic_json` to your needs. + +- **Speed**. There are certainly [faster JSON libraries](https://github.com/miloyip/nativejson-benchmark#parsing-time) out there. However, if your goal is to speed up your development by adding JSON support with a single header, then this library is the way to go. If you know how to use a `std::vector` or `std::map`, you are already set. + +See the [contribution guidelines](https://github.com/nlohmann/json/blob/master/.github/CONTRIBUTING.md#please-dont) for more information. + + +## Sponsors + +You can sponsor this library at [GitHub Sponsors](https://github.com/sponsors/nlohmann). + +### :label: Named Sponsors + +- [Michael Hartmann](https://github.com/reFX-Mike) +- [Stefan Hagen](https://github.com/sthagen) +- [Steve Sperandeo](https://github.com/homer6) +- [Robert Jefe Lindstädt](https://github.com/eljefedelrodeodeljefe) +- [Steve Wagner](https://github.com/ciroque) + +Thanks everyone! + +## Support + +:question: If you have a **question**, please check if it is already answered in the [**FAQ**](https://json.nlohmann.me/home/faq/) or the [**Q&A**](https://github.com/nlohmann/json/discussions/categories/q-a) section. If not, please [**ask a new question**](https://github.com/nlohmann/json/discussions/new) there. + +:books: If you want to **learn more** about how to use the library, check out the rest of the [**README**](#examples), have a look at [**code examples**](https://github.com/nlohmann/json/tree/develop/doc/examples), or browse through the [**help pages**](https://json.nlohmann.me). + +:construction: If you want to understand the **API** better, check out the [**API Reference**](https://json.nlohmann.me/api/basic_json/) or the [**Doxygen documentation**](https://json.nlohmann.me/doxygen/index.html). + +:bug: If you found a **bug**, please check the [**FAQ**](https://json.nlohmann.me/home/faq/) if it is a known issue or the result of a design decision. Please also have a look at the [**issue list**](https://github.com/nlohmann/json/issues) before you [**create a new issue**](https://github.com/nlohmann/json/issues/new/choose). Please provide as many information as possible to help us understand and reproduce your issue. + + +## Examples + +Beside the examples below, you may want to check the [documentation](https://nlohmann.github.io/json/) where each function contains a separate code example (e.g., check out [`emplace()`](https://nlohmann.github.io/json/api/basic_json/emplace/)). All [example files](https://github.com/nlohmann/json/tree/develop/doc/examples) can be compiled and executed on their own (e.g., file [emplace.cpp](https://github.com/nlohmann/json/blob/develop/doc/examples/emplace.cpp)). + +### JSON as first-class data type + +Here are some examples to give you an idea how to use the class. + +Assume you want to create the JSON object + +```json +{ + "pi": 3.141, + "happy": true, + "name": "Niels", + "nothing": null, + "answer": { + "everything": 42 + }, + "list": [1, 0, 2], + "object": { + "currency": "USD", + "value": 42.99 + } +} +``` + +With this library, you could write: + +```cpp +// create an empty structure (null) +json j; + +// add a number that is stored as double (note the implicit conversion of j to an object) +j["pi"] = 3.141; + +// add a Boolean that is stored as bool +j["happy"] = true; + +// add a string that is stored as std::string +j["name"] = "Niels"; + +// add another null object by passing nullptr +j["nothing"] = nullptr; + +// add an object inside the object +j["answer"]["everything"] = 42; + +// add an array that is stored as std::vector (using an initializer list) +j["list"] = { 1, 0, 2 }; + +// add another object (using an initializer list of pairs) +j["object"] = { {"currency", "USD"}, {"value", 42.99} }; + +// instead, you could also write (which looks very similar to the JSON above) +json j2 = { + {"pi", 3.141}, + {"happy", true}, + {"name", "Niels"}, + {"nothing", nullptr}, + {"answer", { + {"everything", 42} + }}, + {"list", {1, 0, 2}}, + {"object", { + {"currency", "USD"}, + {"value", 42.99} + }} +}; +``` + +Note that in all these cases, you never need to "tell" the compiler which JSON value type you want to use. If you want to be explicit or express some edge cases, the functions [`json::array()`](https://nlohmann.github.io/json/api/basic_json/array/) and [`json::object()`](https://nlohmann.github.io/json/api/basic_json/object/) will help: + +```cpp +// a way to express the empty array [] +json empty_array_explicit = json::array(); + +// ways to express the empty object {} +json empty_object_implicit = json({}); +json empty_object_explicit = json::object(); + +// a way to express an _array_ of key/value pairs [["currency", "USD"], ["value", 42.99]] +json array_not_object = json::array({ {"currency", "USD"}, {"value", 42.99} }); +``` + +### Serialization / Deserialization + +#### To/from strings + +You can create a JSON value (deserialization) by appending `_json` to a string literal: + +```cpp +// create object from string literal +json j = "{ \"happy\": true, \"pi\": 3.141 }"_json; + +// or even nicer with a raw string literal +auto j2 = R"( + { + "happy": true, + "pi": 3.141 + } +)"_json; +``` + +Note that without appending the `_json` suffix, the passed string literal is not parsed, but just used as JSON string value. That is, `json j = "{ \"happy\": true, \"pi\": 3.141 }"` would just store the string `"{ "happy": true, "pi": 3.141 }"` rather than parsing the actual object. + +The above example can also be expressed explicitly using [`json::parse()`](https://nlohmann.github.io/json/api/basic_json/parse/): + +```cpp +// parse explicitly +auto j3 = json::parse(R"({"happy": true, "pi": 3.141})"); +``` + +You can also get a string representation of a JSON value (serialize): + +```cpp +// explicit conversion to string +std::string s = j.dump(); // {"happy":true,"pi":3.141} + +// serialization with pretty printing +// pass in the amount of spaces to indent +std::cout << j.dump(4) << std::endl; +// { +// "happy": true, +// "pi": 3.141 +// } +``` + +Note the difference between serialization and assignment: + +```cpp +// store a string in a JSON value +json j_string = "this is a string"; + +// retrieve the string value +auto cpp_string = j_string.get(); +// retrieve the string value (alternative when an variable already exists) +std::string cpp_string2; +j_string.get_to(cpp_string2); + +// retrieve the serialized value (explicit JSON serialization) +std::string serialized_string = j_string.dump(); + +// output of original string +std::cout << cpp_string << " == " << cpp_string2 << " == " << j_string.get() << '\n'; +// output of serialized value +std::cout << j_string << " == " << serialized_string << std::endl; +``` + +[`.dump()`](https://nlohmann.github.io/json/api/basic_json/dump/) returns the originally stored string value. + +Note the library only supports UTF-8. When you store strings with different encodings in the library, calling [`dump()`](https://nlohmann.github.io/json/api/basic_json/dump/) may throw an exception unless `json::error_handler_t::replace` or `json::error_handler_t::ignore` are used as error handlers. + +#### To/from streams (e.g. files, string streams) + +You can also use streams to serialize and deserialize: + +```cpp +// deserialize from standard input +json j; +std::cin >> j; + +// serialize to standard output +std::cout << j; + +// the setw manipulator was overloaded to set the indentation for pretty printing +std::cout << std::setw(4) << j << std::endl; +``` + +These operators work for any subclasses of `std::istream` or `std::ostream`. Here is the same example with files: + +```cpp +// read a JSON file +std::ifstream i("file.json"); +json j; +i >> j; + +// write prettified JSON to another file +std::ofstream o("pretty.json"); +o << std::setw(4) << j << std::endl; +``` + +Please note that setting the exception bit for `failbit` is inappropriate for this use case. It will result in program termination due to the `noexcept` specifier in use. + +#### Read from iterator range + +You can also parse JSON from an iterator range; that is, from any container accessible by iterators whose `value_type` is an integral type of 1, 2 or 4 bytes, which will be interpreted as UTF-8, UTF-16 and UTF-32 respectively. For instance, a `std::vector`, or a `std::list`: + +```cpp +std::vector v = {'t', 'r', 'u', 'e'}; +json j = json::parse(v.begin(), v.end()); +``` + +You may leave the iterators for the range [begin, end): + +```cpp +std::vector v = {'t', 'r', 'u', 'e'}; +json j = json::parse(v); +``` + +#### Custom data source + +Since the parse function accepts arbitrary iterator ranges, you can provide your own data sources by implementing the `LegacyInputIterator` concept. + +```cpp +struct MyContainer { + void advance(); + const char& get_current(); +}; + +struct MyIterator { + using difference_type = std::ptrdiff_t; + using value_type = char; + using pointer = const char*; + using reference = const char&; + using iterator_category = std::input_iterator_tag; + + MyIterator& operator++() { + MyContainer.advance(); + return *this; + } + + bool operator!=(const MyIterator& rhs) const { + return rhs.target != target; + } + + reference operator*() const { + return target.get_current(); + } + + MyContainer* target = nullptr; +}; + +MyIterator begin(MyContainer& tgt) { + return MyIterator{&tgt}; +} + +MyIterator end(const MyContainer&) { + return {}; +} + +void foo() { + MyContainer c; + json j = json::parse(c); +} +``` + +#### SAX interface + +The library uses a SAX-like interface with the following functions: + +```cpp +// called when null is parsed +bool null(); + +// called when a boolean is parsed; value is passed +bool boolean(bool val); + +// called when a signed or unsigned integer number is parsed; value is passed +bool number_integer(number_integer_t val); +bool number_unsigned(number_unsigned_t val); + +// called when a floating-point number is parsed; value and original string is passed +bool number_float(number_float_t val, const string_t& s); + +// called when a string is parsed; value is passed and can be safely moved away +bool string(string_t& val); +// called when a binary value is parsed; value is passed and can be safely moved away +bool binary(binary_t& val); + +// called when an object or array begins or ends, resp. The number of elements is passed (or -1 if not known) +bool start_object(std::size_t elements); +bool end_object(); +bool start_array(std::size_t elements); +bool end_array(); +// called when an object key is parsed; value is passed and can be safely moved away +bool key(string_t& val); + +// called when a parse error occurs; byte position, the last token, and an exception is passed +bool parse_error(std::size_t position, const std::string& last_token, const detail::exception& ex); +``` + +The return value of each function determines whether parsing should proceed. + +To implement your own SAX handler, proceed as follows: + +1. Implement the SAX interface in a class. You can use class `nlohmann::json_sax` as base class, but you can also use any class where the functions described above are implemented and public. +2. Create an object of your SAX interface class, e.g. `my_sax`. +3. Call `bool json::sax_parse(input, &my_sax)`; where the first parameter can be any input like a string or an input stream and the second parameter is a pointer to your SAX interface. + +Note the `sax_parse` function only returns a `bool` indicating the result of the last executed SAX event. It does not return a `json` value - it is up to you to decide what to do with the SAX events. Furthermore, no exceptions are thrown in case of a parse error - it is up to you what to do with the exception object passed to your `parse_error` implementation. Internally, the SAX interface is used for the DOM parser (class `json_sax_dom_parser`) as well as the acceptor (`json_sax_acceptor`), see file [`json_sax.hpp`](https://github.com/nlohmann/json/blob/develop/include/nlohmann/detail/input/json_sax.hpp). + +### STL-like access + +We designed the JSON class to behave just like an STL container. In fact, it satisfies the [**ReversibleContainer**](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) requirement. + +```cpp +// create an array using push_back +json j; +j.push_back("foo"); +j.push_back(1); +j.push_back(true); + +// also use emplace_back +j.emplace_back(1.78); + +// iterate the array +for (json::iterator it = j.begin(); it != j.end(); ++it) { + std::cout << *it << '\n'; +} + +// range-based for +for (auto& element : j) { + std::cout << element << '\n'; +} + +// getter/setter +const auto tmp = j[0].get(); +j[1] = 42; +bool foo = j.at(2); + +// comparison +j == R"(["foo", 1, true, 1.78])"_json; // true + +// other stuff +j.size(); // 4 entries +j.empty(); // false +j.type(); // json::value_t::array +j.clear(); // the array is empty again + +// convenience type checkers +j.is_null(); +j.is_boolean(); +j.is_number(); +j.is_object(); +j.is_array(); +j.is_string(); + +// create an object +json o; +o["foo"] = 23; +o["bar"] = false; +o["baz"] = 3.141; + +// also use emplace +o.emplace("weather", "sunny"); + +// special iterator member functions for objects +for (json::iterator it = o.begin(); it != o.end(); ++it) { + std::cout << it.key() << " : " << it.value() << "\n"; +} + +// the same code as range for +for (auto& el : o.items()) { + std::cout << el.key() << " : " << el.value() << "\n"; +} + +// even easier with structured bindings (C++17) +for (auto& [key, value] : o.items()) { + std::cout << key << " : " << value << "\n"; +} + +// find an entry +if (o.contains("foo")) { + // there is an entry with key "foo" +} + +// or via find and an iterator +if (o.find("foo") != o.end()) { + // there is an entry with key "foo" +} + +// or simpler using count() +int foo_present = o.count("foo"); // 1 +int fob_present = o.count("fob"); // 0 + +// delete an entry +o.erase("foo"); +``` + + +### Conversion from STL containers + +Any sequence container (`std::array`, `std::vector`, `std::deque`, `std::forward_list`, `std::list`) whose values can be used to construct JSON values (e.g., integers, floating point numbers, Booleans, string types, or again STL containers described in this section) can be used to create a JSON array. The same holds for similar associative containers (`std::set`, `std::multiset`, `std::unordered_set`, `std::unordered_multiset`), but in these cases the order of the elements of the array depends on how the elements are ordered in the respective STL container. + +```cpp +std::vector c_vector {1, 2, 3, 4}; +json j_vec(c_vector); +// [1, 2, 3, 4] + +std::deque c_deque {1.2, 2.3, 3.4, 5.6}; +json j_deque(c_deque); +// [1.2, 2.3, 3.4, 5.6] + +std::list c_list {true, true, false, true}; +json j_list(c_list); +// [true, true, false, true] + +std::forward_list c_flist {12345678909876, 23456789098765, 34567890987654, 45678909876543}; +json j_flist(c_flist); +// [12345678909876, 23456789098765, 34567890987654, 45678909876543] + +std::array c_array {{1, 2, 3, 4}}; +json j_array(c_array); +// [1, 2, 3, 4] + +std::set c_set {"one", "two", "three", "four", "one"}; +json j_set(c_set); // only one entry for "one" is used +// ["four", "one", "three", "two"] + +std::unordered_set c_uset {"one", "two", "three", "four", "one"}; +json j_uset(c_uset); // only one entry for "one" is used +// maybe ["two", "three", "four", "one"] + +std::multiset c_mset {"one", "two", "one", "four"}; +json j_mset(c_mset); // both entries for "one" are used +// maybe ["one", "two", "one", "four"] + +std::unordered_multiset c_umset {"one", "two", "one", "four"}; +json j_umset(c_umset); // both entries for "one" are used +// maybe ["one", "two", "one", "four"] +``` + +Likewise, any associative key-value containers (`std::map`, `std::multimap`, `std::unordered_map`, `std::unordered_multimap`) whose keys can construct an `std::string` and whose values can be used to construct JSON values (see examples above) can be used to create a JSON object. Note that in case of multimaps only one key is used in the JSON object and the value depends on the internal order of the STL container. + +```cpp +std::map c_map { {"one", 1}, {"two", 2}, {"three", 3} }; +json j_map(c_map); +// {"one": 1, "three": 3, "two": 2 } + +std::unordered_map c_umap { {"one", 1.2}, {"two", 2.3}, {"three", 3.4} }; +json j_umap(c_umap); +// {"one": 1.2, "two": 2.3, "three": 3.4} + +std::multimap c_mmap { {"one", true}, {"two", true}, {"three", false}, {"three", true} }; +json j_mmap(c_mmap); // only one entry for key "three" is used +// maybe {"one": true, "two": true, "three": true} + +std::unordered_multimap c_ummap { {"one", true}, {"two", true}, {"three", false}, {"three", true} }; +json j_ummap(c_ummap); // only one entry for key "three" is used +// maybe {"one": true, "two": true, "three": true} +``` + +### JSON Pointer and JSON Patch + +The library supports **JSON Pointer** ([RFC 6901](https://tools.ietf.org/html/rfc6901)) as alternative means to address structured values. On top of this, **JSON Patch** ([RFC 6902](https://tools.ietf.org/html/rfc6902)) allows to describe differences between two JSON values - effectively allowing patch and diff operations known from Unix. + +```cpp +// a JSON value +json j_original = R"({ + "baz": ["one", "two", "three"], + "foo": "bar" +})"_json; + +// access members with a JSON pointer (RFC 6901) +j_original["/baz/1"_json_pointer]; +// "two" + +// a JSON patch (RFC 6902) +json j_patch = R"([ + { "op": "replace", "path": "/baz", "value": "boo" }, + { "op": "add", "path": "/hello", "value": ["world"] }, + { "op": "remove", "path": "/foo"} +])"_json; + +// apply the patch +json j_result = j_original.patch(j_patch); +// { +// "baz": "boo", +// "hello": ["world"] +// } + +// calculate a JSON patch from two JSON values +json::diff(j_result, j_original); +// [ +// { "op":" replace", "path": "/baz", "value": ["one", "two", "three"] }, +// { "op": "remove","path": "/hello" }, +// { "op": "add", "path": "/foo", "value": "bar" } +// ] +``` + +### JSON Merge Patch + +The library supports **JSON Merge Patch** ([RFC 7386](https://tools.ietf.org/html/rfc7386)) as a patch format. Instead of using JSON Pointer (see above) to specify values to be manipulated, it describes the changes using a syntax that closely mimics the document being modified. + +```cpp +// a JSON value +json j_document = R"({ + "a": "b", + "c": { + "d": "e", + "f": "g" + } +})"_json; + +// a patch +json j_patch = R"({ + "a":"z", + "c": { + "f": null + } +})"_json; + +// apply the patch +j_document.merge_patch(j_patch); +// { +// "a": "z", +// "c": { +// "d": "e" +// } +// } +``` + +### Implicit conversions + +Supported types can be implicitly converted to JSON values. + +It is recommended to **NOT USE** implicit conversions **FROM** a JSON value. +You can find more details about this recommendation [here](https://www.github.com/nlohmann/json/issues/958). +You can switch off implicit conversions by defining `JSON_USE_IMPLICIT_CONVERSIONS` to `0` before including the `json.hpp` header. When using CMake, you can also achieve this by setting the option `JSON_ImplicitConversions` to `OFF`. + +```cpp +// strings +std::string s1 = "Hello, world!"; +json js = s1; +auto s2 = js.get(); +// NOT RECOMMENDED +std::string s3 = js; +std::string s4; +s4 = js; + +// Booleans +bool b1 = true; +json jb = b1; +auto b2 = jb.get(); +// NOT RECOMMENDED +bool b3 = jb; +bool b4; +b4 = jb; + +// numbers +int i = 42; +json jn = i; +auto f = jn.get(); +// NOT RECOMMENDED +double f2 = jb; +double f3; +f3 = jb; + +// etc. +``` + +Note that `char` types are not automatically converted to JSON strings, but to integer numbers. A conversion to a string must be specified explicitly: + +```cpp +char ch = 'A'; // ASCII value 65 +json j_default = ch; // stores integer number 65 +json j_string = std::string(1, ch); // stores string "A" +``` + +### Arbitrary types conversions + +Every type can be serialized in JSON, not just STL containers and scalar types. Usually, you would do something along those lines: + +```cpp +namespace ns { + // a simple struct to model a person + struct person { + std::string name; + std::string address; + int age; + }; +} + +ns::person p = {"Ned Flanders", "744 Evergreen Terrace", 60}; + +// convert to JSON: copy each value into the JSON object +json j; +j["name"] = p.name; +j["address"] = p.address; +j["age"] = p.age; + +// ... + +// convert from JSON: copy each value from the JSON object +ns::person p { + j["name"].get(), + j["address"].get(), + j["age"].get() +}; +``` + +It works, but that's quite a lot of boilerplate... Fortunately, there's a better way: + +```cpp +// create a person +ns::person p {"Ned Flanders", "744 Evergreen Terrace", 60}; + +// conversion: person -> json +json j = p; + +std::cout << j << std::endl; +// {"address":"744 Evergreen Terrace","age":60,"name":"Ned Flanders"} + +// conversion: json -> person +auto p2 = j.get(); + +// that's it +assert(p == p2); +``` + +#### Basic usage + +To make this work with one of your types, you only need to provide two functions: + +```cpp +using json = nlohmann::json; + +namespace ns { + void to_json(json& j, const person& p) { + j = json{{"name", p.name}, {"address", p.address}, {"age", p.age}}; + } + + void from_json(const json& j, person& p) { + j.at("name").get_to(p.name); + j.at("address").get_to(p.address); + j.at("age").get_to(p.age); + } +} // namespace ns +``` + +That's all! When calling the `json` constructor with your type, your custom `to_json` method will be automatically called. +Likewise, when calling `get()` or `get_to(your_type&)`, the `from_json` method will be called. + +Some important things: + +* Those methods **MUST** be in your type's namespace (which can be the global namespace), or the library will not be able to locate them (in this example, they are in namespace `ns`, where `person` is defined). +* Those methods **MUST** be available (e.g., proper headers must be included) everywhere you use these conversions. Look at [issue 1108](https://github.com/nlohmann/json/issues/1108) for errors that may occur otherwise. +* When using `get()`, `your_type` **MUST** be [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). (There is a way to bypass this requirement described later.) +* In function `from_json`, use function [`at()`](https://nlohmann.github.io/json/api/basic_json/at/) to access the object values rather than `operator[]`. In case a key does not exist, `at` throws an exception that you can handle, whereas `operator[]` exhibits undefined behavior. +* You do not need to add serializers or deserializers for STL types like `std::vector`: the library already implements these. + +#### Simplify your life with macros + +If you just want to serialize/deserialize some structs, the `to_json`/`from_json` functions can be a lot of boilerplate. + +There are two macros to make your life easier as long as you (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object: + +- `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(name, member1, member2, ...)` is to be defined inside of the namespace of the class/struct to create code for. +- `NLOHMANN_DEFINE_TYPE_INTRUSIVE(name, member1, member2, ...)` is to be defined inside of the class/struct to create code for. This macro can also access private members. + +In both macros, the first parameter is the name of the class/struct, and all remaining parameters name the members. + +##### Examples + +The `to_json`/`from_json` functions for the `person` struct above can be created with: + +```cpp +namespace ns { + NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(person, name, address, age) +} +``` + +Here is an example with private members, where `NLOHMANN_DEFINE_TYPE_INTRUSIVE` is needed: + +```cpp +namespace ns { + class address { + private: + std::string street; + int housenumber; + int postcode; + + public: + NLOHMANN_DEFINE_TYPE_INTRUSIVE(address, street, housenumber, postcode) + }; +} +``` + +#### How do I convert third-party types? + +This requires a bit more advanced technique. But first, let's see how this conversion mechanism works: + +The library uses **JSON Serializers** to convert types to json. +The default serializer for `nlohmann::json` is `nlohmann::adl_serializer` (ADL means [Argument-Dependent Lookup](https://en.cppreference.com/w/cpp/language/adl)). + +It is implemented like this (simplified): + +```cpp +template +struct adl_serializer { + static void to_json(json& j, const T& value) { + // calls the "to_json" method in T's namespace + } + + static void from_json(const json& j, T& value) { + // same thing, but with the "from_json" method + } +}; +``` + +This serializer works fine when you have control over the type's namespace. However, what about `boost::optional` or `std::filesystem::path` (C++17)? Hijacking the `boost` namespace is pretty bad, and it's illegal to add something other than template specializations to `std`... + +To solve this, you need to add a specialization of `adl_serializer` to the `nlohmann` namespace, here's an example: + +```cpp +// partial specialization (full specialization works too) +namespace nlohmann { + template + struct adl_serializer> { + static void to_json(json& j, const boost::optional& opt) { + if (opt == boost::none) { + j = nullptr; + } else { + j = *opt; // this will call adl_serializer::to_json which will + // find the free function to_json in T's namespace! + } + } + + static void from_json(const json& j, boost::optional& opt) { + if (j.is_null()) { + opt = boost::none; + } else { + opt = j.get(); // same as above, but with + // adl_serializer::from_json + } + } + }; +} +``` + +#### How can I use `get()` for non-default constructible/non-copyable types? + +There is a way, if your type is [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible). You will need to specialize the `adl_serializer` as well, but with a special `from_json` overload: + +```cpp +struct move_only_type { + move_only_type() = delete; + move_only_type(int ii): i(ii) {} + move_only_type(const move_only_type&) = delete; + move_only_type(move_only_type&&) = default; + + int i; +}; + +namespace nlohmann { + template <> + struct adl_serializer { + // note: the return type is no longer 'void', and the method only takes + // one argument + static move_only_type from_json(const json& j) { + return {j.get()}; + } + + // Here's the catch! You must provide a to_json method! Otherwise you + // will not be able to convert move_only_type to json, since you fully + // specialized adl_serializer on that type + static void to_json(json& j, move_only_type t) { + j = t.i; + } + }; +} +``` + +#### Can I write my own serializer? (Advanced use) + +Yes. You might want to take a look at [`unit-udt.cpp`](https://github.com/nlohmann/json/blob/develop/test/src/unit-udt.cpp) in the test suite, to see a few examples. + +If you write your own serializer, you'll need to do a few things: + +- use a different `basic_json` alias than `nlohmann::json` (the last template parameter of `basic_json` is the `JSONSerializer`) +- use your `basic_json` alias (or a template parameter) in all your `to_json`/`from_json` methods +- use `nlohmann::to_json` and `nlohmann::from_json` when you need ADL + +Here is an example, without simplifications, that only accepts types with a size <= 32, and uses ADL. + +```cpp +// You should use void as a second template argument +// if you don't need compile-time checks on T +template::type> +struct less_than_32_serializer { + template + static void to_json(BasicJsonType& j, T value) { + // we want to use ADL, and call the correct to_json overload + using nlohmann::to_json; // this method is called by adl_serializer, + // this is where the magic happens + to_json(j, value); + } + + template + static void from_json(const BasicJsonType& j, T& value) { + // same thing here + using nlohmann::from_json; + from_json(j, value); + } +}; +``` + +Be **very** careful when reimplementing your serializer, you can stack overflow if you don't pay attention: + +```cpp +template +struct bad_serializer +{ + template + static void to_json(BasicJsonType& j, const T& value) { + // this calls BasicJsonType::json_serializer::to_json(j, value); + // if BasicJsonType::json_serializer == bad_serializer ... oops! + j = value; + } + + template + static void to_json(const BasicJsonType& j, T& value) { + // this calls BasicJsonType::json_serializer::from_json(j, value); + // if BasicJsonType::json_serializer == bad_serializer ... oops! + value = j.template get(); // oops! + } +}; +``` + +### Specializing enum conversion + +By default, enum values are serialized to JSON as integers. In some cases this could result in undesired behavior. If an enum is modified or re-ordered after data has been serialized to JSON, the later de-serialized JSON data may be undefined or a different enum value than was originally intended. + +It is possible to more precisely specify how a given enum is mapped to and from JSON as shown below: + +```cpp +// example enum type declaration +enum TaskState { + TS_STOPPED, + TS_RUNNING, + TS_COMPLETED, + TS_INVALID=-1, +}; + +// map TaskState values to JSON as strings +NLOHMANN_JSON_SERIALIZE_ENUM( TaskState, { + {TS_INVALID, nullptr}, + {TS_STOPPED, "stopped"}, + {TS_RUNNING, "running"}, + {TS_COMPLETED, "completed"}, +}) +``` + +The `NLOHMANN_JSON_SERIALIZE_ENUM()` macro declares a set of `to_json()` / `from_json()` functions for type `TaskState` while avoiding repetition and boilerplate serialization code. + +**Usage:** + +```cpp +// enum to JSON as string +json j = TS_STOPPED; +assert(j == "stopped"); + +// json string to enum +json j3 = "running"; +assert(j3.get() == TS_RUNNING); + +// undefined json value to enum (where the first map entry above is the default) +json jPi = 3.14; +assert(jPi.get() == TS_INVALID ); +``` + +Just as in [Arbitrary Type Conversions](#arbitrary-types-conversions) above, +- `NLOHMANN_JSON_SERIALIZE_ENUM()` MUST be declared in your enum type's namespace (which can be the global namespace), or the library will not be able to locate it and it will default to integer serialization. +- It MUST be available (e.g., proper headers must be included) everywhere you use the conversions. + +Other Important points: +- When using `get()`, undefined JSON values will default to the first pair specified in your map. Select this default pair carefully. +- If an enum or JSON value is specified more than once in your map, the first matching occurrence from the top of the map will be returned when converting to or from JSON. + +### Binary formats (BSON, CBOR, MessagePack, and UBJSON) + +Though JSON is a ubiquitous data format, it is not a very compact format suitable for data exchange, for instance over a network. Hence, the library supports [BSON](https://bsonspec.org) (Binary JSON), [CBOR](https://cbor.io) (Concise Binary Object Representation), [MessagePack](https://msgpack.org), and [UBJSON](https://ubjson.org) (Universal Binary JSON Specification) to efficiently encode JSON values to byte vectors and to decode such vectors. + +```cpp +// create a JSON value +json j = R"({"compact": true, "schema": 0})"_json; + +// serialize to BSON +std::vector v_bson = json::to_bson(j); + +// 0x1B, 0x00, 0x00, 0x00, 0x08, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0x00, 0x01, 0x10, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 + +// roundtrip +json j_from_bson = json::from_bson(v_bson); + +// serialize to CBOR +std::vector v_cbor = json::to_cbor(j); + +// 0xA2, 0x67, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0xF5, 0x66, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x00 + +// roundtrip +json j_from_cbor = json::from_cbor(v_cbor); + +// serialize to MessagePack +std::vector v_msgpack = json::to_msgpack(j); + +// 0x82, 0xA7, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0xC3, 0xA6, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x00 + +// roundtrip +json j_from_msgpack = json::from_msgpack(v_msgpack); + +// serialize to UBJSON +std::vector v_ubjson = json::to_ubjson(j); + +// 0x7B, 0x69, 0x07, 0x63, 0x6F, 0x6D, 0x70, 0x61, 0x63, 0x74, 0x54, 0x69, 0x06, 0x73, 0x63, 0x68, 0x65, 0x6D, 0x61, 0x69, 0x00, 0x7D + +// roundtrip +json j_from_ubjson = json::from_ubjson(v_ubjson); +``` + +The library also supports binary types from BSON, CBOR (byte strings), and MessagePack (bin, ext, fixext). They are stored by default as `std::vector` to be processed outside of the library. + +```cpp +// CBOR byte string with payload 0xCAFE +std::vector v = {0x42, 0xCA, 0xFE}; + +// read value +json j = json::from_cbor(v); + +// the JSON value has type binary +j.is_binary(); // true + +// get reference to stored binary value +auto& binary = j.get_binary(); + +// the binary value has no subtype (CBOR has no binary subtypes) +binary.has_subtype(); // false + +// access std::vector member functions +binary.size(); // 2 +binary[0]; // 0xCA +binary[1]; // 0xFE + +// set subtype to 0x10 +binary.set_subtype(0x10); + +// serialize to MessagePack +auto cbor = json::to_msgpack(j); // 0xD5 (fixext2), 0x10, 0xCA, 0xFE +``` + + +## Supported compilers + +Though it's 2021 already, the support for C++11 is still a bit sparse. Currently, the following compilers are known to work: + +- GCC 4.8 - 11.0 (and possibly later) +- Clang 3.4 - 12.0 (and possibly later) +- Apple Clang 9.1 - 12.4 (and possibly later) +- Intel C++ Compiler 17.0.2 (and possibly later) +- Microsoft Visual C++ 2015 / Build Tools 14.0.25123.0 (and possibly later) +- Microsoft Visual C++ 2017 / Build Tools 15.5.180.51428 (and possibly later) +- Microsoft Visual C++ 2019 / Build Tools 16.3.1+1def00d3d (and possibly later) + +I would be happy to learn about other compilers/versions. + +Please note: + +- GCC 4.8 has a bug [57824](https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57824)): multiline raw strings cannot be the arguments to macros. Don't use multiline raw strings directly in macros with this compiler. +- Android defaults to using very old compilers and C++ libraries. To fix this, add the following to your `Application.mk`. This will switch to the LLVM C++ library, the Clang compiler, and enable C++11 and other features disabled by default. + + ``` + APP_STL := c++_shared + NDK_TOOLCHAIN_VERSION := clang3.6 + APP_CPPFLAGS += -frtti -fexceptions + ``` + + The code compiles successfully with [Android NDK](https://developer.android.com/ndk/index.html?hl=ml), Revision 9 - 11 (and possibly later) and [CrystaX's Android NDK](https://www.crystax.net/en/android/ndk) version 10. + +- For GCC running on MinGW or Android SDK, the error `'to_string' is not a member of 'std'` (or similarly, for `strtod` or `strtof`) may occur. Note this is not an issue with the code, but rather with the compiler itself. On Android, see above to build with a newer environment. For MinGW, please refer to [this site](https://tehsausage.com/mingw-to-string) and [this discussion](https://github.com/nlohmann/json/issues/136) for information on how to fix this bug. For Android NDK using `APP_STL := gnustl_static`, please refer to [this discussion](https://github.com/nlohmann/json/issues/219). + +- Unsupported versions of GCC and Clang are rejected by `#error` directives. This can be switched off by defining `JSON_SKIP_UNSUPPORTED_COMPILER_CHECK`. Note that you can expect no support in this case. + +The following compilers are currently used in continuous integration at [Travis](https://travis-ci.org/nlohmann/json), [AppVeyor](https://ci.appveyor.com/project/nlohmann/json), [Drone CI](https://cloud.drone.io/nlohmann/json), and [GitHub Actions](https://github.com/nlohmann/json/actions): + +| Compiler | Operating System | CI Provider | +|-------------------------------------------------------------------|--------------------|----------------| +| Apple Clang 10.0.1 (clang-1001.0.46.4); Xcode 10.2.1 | macOS 10.14.4 | Travis | +| Apple Clang 10.0.1 (clang-1001.0.46.4); Xcode 10.3 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 11.0.0 (clang-1100.0.33.12); Xcode 11.2.1 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 11.0.0 (clang-1100.0.33.17); Xcode 11.3.1 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 11.0.3 (clang-1103.0.32.59); Xcode 11.4.1 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 11.0.3 (clang-1103.0.32.62); Xcode 11.5 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 11.0.3 (clang-1103.0.32.62); Xcode 11.6 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 11.0.3 (clang-1103.0.32.62); Xcode 11.7 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 12.0.0 (clang-1200.0.32.2); Xcode 12 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 12.0.0 (clang-1200.0.32.21); Xcode 12.1 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 12.0.0 (clang-1200.0.32.21); Xcode 12.1.1 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 12.0.0 (clang-1200.0.32.27); Xcode 12.2 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 12.0.0 (clang-1200.0.32.28); Xcode 12.3 | macOS 10.15.7 | GitHub Actions | +| Apple Clang 12.0.0 (clang-1200.0.32.29); Xcode 12.4 | macOS 10.15.7 | GitHub Actions | +| GCC 4.8.5 (Ubuntu 4.8.5-4ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | +| GCC 4.9.3 (Ubuntu 4.9.3-13ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | +| GCC 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) | Ubuntu 20.04.2 LTS | GitHub Actions | +| GCC 6.5.0 (Ubuntu 6.5.0-2ubuntu1~14.04.1) | Ubuntu 14.04.5 LTS | Travis | +| GCC 7.5.0 (Ubuntu 7.5.0-6ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | +| GCC 8.1.0 (x86_64-posix-seh-rev0, Built by MinGW-W64 project) | Windows-10.0.17763 | GitHub Actions | +| GCC 8.1.0 (i686-posix-dwarf-rev0, Built by MinGW-W64 project) | Windows-10.0.17763 | GitHub Actions | +| GCC 8.4.0 (Ubuntu 8.4.0-3ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | +| GCC 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04) | Ubuntu 20.04.2 LTS | GitHub Actions | +| GCC 10.2.0 (Ubuntu 10.2.0-5ubuntu1~20.04) | Ubuntu 20.04.2 LTS | GitHub Actions | +| GCC 11.0.1 20210321 (experimental) | Ubuntu 20.04.2 LTS | GitHub Actions | +| GCC 11.1.0 | Ubuntu (aarch64) | Drone CI | +| Clang 3.5.2 (3.5.2-3ubuntu1) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 3.6.2 (3.6.2-3ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 3.7.1 (3.7.1-2ubuntu2) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 3.8.0 (3.8.0-2ubuntu4) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 3.9.1 (3.9.1-4ubuntu3\~16.04.2) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 4.0.0 (4.0.0-1ubuntu1\~16.04.2) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 5.0.0 (5.0.0-3\~16.04.1) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 6.0.1 (6.0.1-14) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 7.0.1 (7.0.1-12) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 8.0.1 (8.0.1-9) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 9.0.1 (9.0.1-12) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 10.0.0 (10.0.0-4ubuntu1) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 10.0.0 with GNU-like command-line | Windows-10.0.17763 | GitHub Actions | +| Clang 11.0.0 with GNU-like command-line | Windows-10.0.17763 | GitHub Actions | +| Clang 11.0.0 with MSVC-like command-line | Windows-10.0.17763 | GitHub Actions | +| Clang 11.0.0 (11.0.0-2~ubuntu20.04.1) | Ubuntu 20.04.2 LTS | GitHub Actions | +| Clang 12.1.0 (12.0.1-++20210423082613+072c90a863aa-1~exp1~20210423063319.76 | Ubuntu 20.04.2 LTS | GitHub Actions | +| Visual Studio 14 2015 MSVC 19.0.24241.7 (Build Engine version 14.0.25420.1) | Windows-6.3.9600 | AppVeyor | +| Visual Studio 15 2017 MSVC 19.16.27035.0 (Build Engine version 15.9.21+g9802d43bc3 for .NET Framework) | Windows-10.0.14393 | AppVeyor | +| Visual Studio 15 2017 MSVC 19.16.27045.0 (Build Engine version 15.9.21+g9802d43bc3 for .NET Framework) | Windows-10.0.14393 | GitHub Actions | +| Visual Studio 16 2019 MSVC 19.28.29912.0 (Build Engine version 16.9.0+57a23d249 for .NET Framework) | Windows-10.0.17763 | GitHub Actions | +| Visual Studio 16 2019 MSVC 19.28.29912.0 (Build Engine version 16.9.0+57a23d249 for .NET Framework) | Windows-10.0.17763 | AppVeyor | + + +## Integration + +[`json.hpp`](https://github.com/nlohmann/json/blob/develop/single_include/nlohmann/json.hpp) is the single required file in `single_include/nlohmann` or [released here](https://github.com/nlohmann/json/releases). You need to add + +```cpp +#include + +// for convenience +using json = nlohmann::json; +``` + +to the files you want to process JSON and set the necessary switches to enable C++11 (e.g., `-std=c++11` for GCC and Clang). + +You can further use file [`include/nlohmann/json_fwd.hpp`](https://github.com/nlohmann/json/blob/develop/include/nlohmann/json_fwd.hpp) for forward-declarations. The installation of json_fwd.hpp (as part of cmake's install step), can be achieved by setting `-DJSON_MultipleHeaders=ON`. + +### CMake + +You can also use the `nlohmann_json::nlohmann_json` interface target in CMake. This target populates the appropriate usage requirements for `INTERFACE_INCLUDE_DIRECTORIES` to point to the appropriate include directories and `INTERFACE_COMPILE_FEATURES` for the necessary C++11 flags. + +#### External + +To use this library from a CMake project, you can locate it directly with `find_package()` and use the namespaced imported target from the generated package configuration: + +```cmake +# CMakeLists.txt +find_package(nlohmann_json 3.2.0 REQUIRED) +... +add_library(foo ...) +... +target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json) +``` + +The package configuration file, `nlohmann_jsonConfig.cmake`, can be used either from an install tree or directly out of the build tree. + +#### Embedded + +To embed the library directly into an existing CMake project, place the entire source tree in a subdirectory and call `add_subdirectory()` in your `CMakeLists.txt` file: + +```cmake +# Typically you don't care so much for a third party library's tests to be +# run from your own project's code. +set(JSON_BuildTests OFF CACHE INTERNAL "") + +# If you only include this third party in PRIVATE source files, you do not +# need to install it when your main project gets installed. +# set(JSON_Install OFF CACHE INTERNAL "") + +# Don't use include(nlohmann_json/CMakeLists.txt) since that carries with it +# unintended consequences that will break the build. It's generally +# discouraged (although not necessarily well documented as such) to use +# include(...) for pulling in other CMake projects anyways. +add_subdirectory(nlohmann_json) +... +add_library(foo ...) +... +target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json) +``` + +##### Embedded (FetchContent) + +Since CMake v3.11, +[FetchContent](https://cmake.org/cmake/help/v3.11/module/FetchContent.html) can +be used to automatically download the repository as a dependency at configure time. + +Example: +```cmake +include(FetchContent) + +FetchContent_Declare(json + GIT_REPOSITORY https://github.com/nlohmann/json.git + GIT_TAG v3.7.3) + +FetchContent_GetProperties(json) +if(NOT json_POPULATED) + FetchContent_Populate(json) + add_subdirectory(${json_SOURCE_DIR} ${json_BINARY_DIR} EXCLUDE_FROM_ALL) +endif() + +target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json) +``` + +**Note**: The repository https://github.com/nlohmann/json download size is huge. +It contains all the dataset used for the benchmarks. You might want to depend on +a smaller repository. For instance, you might want to replace the URL above by +https://github.com/ArthurSonzogni/nlohmann_json_cmake_fetchcontent + +#### Supporting Both + +To allow your project to support either an externally supplied or an embedded JSON library, you can use a pattern akin to the following: + +``` cmake +# Top level CMakeLists.txt +project(FOO) +... +option(FOO_USE_EXTERNAL_JSON "Use an external JSON library" OFF) +... +add_subdirectory(thirdparty) +... +add_library(foo ...) +... +# Note that the namespaced target will always be available regardless of the +# import method +target_link_libraries(foo PRIVATE nlohmann_json::nlohmann_json) +``` +```cmake +# thirdparty/CMakeLists.txt +... +if(FOO_USE_EXTERNAL_JSON) + find_package(nlohmann_json 3.2.0 REQUIRED) +else() + set(JSON_BuildTests OFF CACHE INTERNAL "") + add_subdirectory(nlohmann_json) +endif() +... +``` + +`thirdparty/nlohmann_json` is then a complete copy of this source tree. + +### Package Managers + +:beer: If you are using OS X and [Homebrew](https://brew.sh), just type `brew install nlohmann-json` and you're set. If you want the bleeding edge rather than the latest release, use `brew install nlohmann-json --HEAD`. See [nlohmann-json](https://formulae.brew.sh/formula/nlohmann-json) for more information. + +If you are using the [Meson Build System](https://mesonbuild.com), add this source tree as a [meson subproject](https://mesonbuild.com/Subprojects.html#using-a-subproject). You may also use the `include.zip` published in this project's [Releases](https://github.com/nlohmann/json/releases) to reduce the size of the vendored source tree. Alternatively, you can get a wrap file by downloading it from [Meson WrapDB](https://wrapdb.mesonbuild.com/nlohmann_json), or simply use `meson wrap install nlohmann_json`. Please see the meson project for any issues regarding the packaging. + +The provided meson.build can also be used as an alternative to cmake for installing `nlohmann_json` system-wide in which case a pkg-config file is installed. To use it, simply have your build system require the `nlohmann_json` pkg-config dependency. In Meson, it is preferred to use the [`dependency()`](https://mesonbuild.com/Reference-manual.html#dependency) object with a subproject fallback, rather than using the subproject directly. + +If you are using [Conan](https://www.conan.io/) to manage your dependencies, merely add [`nlohmann_json/x.y.z`](https://conan.io/center/nlohmann_json) to your `conanfile`'s requires, where `x.y.z` is the release version you want to use. Please file issues [here](https://github.com/conan-io/conan-center-index/issues) if you experience problems with the packages. + +If you are using [Spack](https://www.spack.io/) to manage your dependencies, you can use the [`nlohmann-json` package](https://spack.readthedocs.io/en/latest/package_list.html#nlohmann-json). Please see the [spack project](https://github.com/spack/spack) for any issues regarding the packaging. + +If you are using [hunter](https://github.com/cpp-pm/hunter) on your project for external dependencies, then you can use the [nlohmann_json package](https://hunter.readthedocs.io/en/latest/packages/pkg/nlohmann_json.html). Please see the hunter project for any issues regarding the packaging. + +If you are using [Buckaroo](https://buckaroo.pm), you can install this library's module with `buckaroo add github.com/buckaroo-pm/nlohmann-json`. Please file issues [here](https://github.com/buckaroo-pm/nlohmann-json). There is a demo repo [here](https://github.com/njlr/buckaroo-nholmann-json-example). + +If you are using [vcpkg](https://github.com/Microsoft/vcpkg/) on your project for external dependencies, then you can install the [nlohmann-json package](https://github.com/Microsoft/vcpkg/tree/master/ports/nlohmann-json) with `vcpkg install nlohmann-json` and follow the then displayed descriptions. Please see the vcpkg project for any issues regarding the packaging. + +If you are using [cget](https://cget.readthedocs.io/en/latest/), you can install the latest development version with `cget install nlohmann/json`. A specific version can be installed with `cget install nlohmann/json@v3.1.0`. Also, the multiple header version can be installed by adding the `-DJSON_MultipleHeaders=ON` flag (i.e., `cget install nlohmann/json -DJSON_MultipleHeaders=ON`). + +If you are using [CocoaPods](https://cocoapods.org), you can use the library by adding pod `"nlohmann_json", '~>3.1.2'` to your podfile (see [an example](https://bitbucket.org/benman/nlohmann_json-cocoapod/src/master/)). Please file issues [here](https://bitbucket.org/benman/nlohmann_json-cocoapod/issues?status=new&status=open). + +If you are using [NuGet](https://www.nuget.org), you can use the package [nlohmann.json](https://www.nuget.org/packages/nlohmann.json/). Please check [this extensive description](https://github.com/nlohmann/json/issues/1132#issuecomment-452250255) on how to use the package. Please files issues [here](https://github.com/hnkb/nlohmann-json-nuget/issues). + +If you are using [conda](https://conda.io/), you can use the package [nlohmann_json](https://github.com/conda-forge/nlohmann_json-feedstock) from [conda-forge](https://conda-forge.org) executing `conda install -c conda-forge nlohmann_json`. Please file issues [here](https://github.com/conda-forge/nlohmann_json-feedstock/issues). + +If you are using [MSYS2](https://www.msys2.org/), your can use the [mingw-w64-nlohmann-json](https://packages.msys2.org/base/mingw-w64-nlohmann-json) package, just type `pacman -S mingw-w64-i686-nlohmann-json` or `pacman -S mingw-w64-x86_64-nlohmann-json` for installation. Please file issues [here](https://github.com/msys2/MINGW-packages/issues/new?title=%5Bnlohmann-json%5D) if you experience problems with the packages. + +If you are using [`build2`](https://build2.org), you can use the [`nlohmann-json`](https://cppget.org/nlohmann-json) package from the public repository https://cppget.org or directly from the [package's sources repository](https://github.com/build2-packaging/nlohmann-json). In your project's `manifest` file, just add `depends: nlohmann-json` (probably with some [version constraints](https://build2.org/build2-toolchain/doc/build2-toolchain-intro.xhtml#guide-add-remove-deps)). If you are not familiar with using dependencies in `build2`, [please read this introduction](https://build2.org/build2-toolchain/doc/build2-toolchain-intro.xhtml). +Please file issues [here](https://github.com/build2-packaging/nlohmann-json) if you experience problems with the packages. + +If you are using [`wsjcpp`](https://wsjcpp.org), you can use the command `wsjcpp install "https://github.com/nlohmann/json:develop"` to get the latest version. Note you can change the branch ":develop" to an existing tag or another branch. + +If you are using [`CPM.cmake`](https://github.com/TheLartians/CPM.cmake), you can check this [`example`](https://github.com/TheLartians/CPM.cmake/tree/master/examples/json). After [adding CPM script](https://github.com/TheLartians/CPM.cmake#adding-cpm) to your project, implement the following snippet to your CMake: + +```cmake +CPMAddPackage( + NAME nlohmann_json + GITHUB_REPOSITORY nlohmann/json + VERSION 3.9.1) +``` + +### Pkg-config + +If you are using bare Makefiles, you can use `pkg-config` to generate the include flags that point to where the library is installed: + +```sh +pkg-config nlohmann_json --cflags +``` + +Users of the Meson build system will also be able to use a system wide library, which will be found by `pkg-config`: + +```meson +json = dependency('nlohmann_json', required: true) +``` + + +## License + + + +The class is licensed under the [MIT License](https://opensource.org/licenses/MIT): + +Copyright © 2013-2021 [Niels Lohmann](https://nlohmann.me) + +Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +* * * + +The class contains the UTF-8 Decoder from Bjoern Hoehrmann which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above). Copyright © 2008-2009 [Björn Hoehrmann](https://bjoern.hoehrmann.de/) + +The class contains a slightly modified version of the Grisu2 algorithm from Florian Loitsch which is licensed under the [MIT License](https://opensource.org/licenses/MIT) (see above). Copyright © 2009 [Florian Loitsch](https://florian.loitsch.com/) + +The class contains a copy of [Hedley](https://nemequ.github.io/hedley/) from Evan Nemerson which is licensed as [CC0-1.0](https://creativecommons.org/publicdomain/zero/1.0/). + +The class contains parts of [Google Abseil](https://github.com/abseil/abseil-cpp) which is licensed under the [Apache 2.0 License](https://opensource.org/licenses/Apache-2.0). + +## Contact + +If you have questions regarding the library, I would like to invite you to [open an issue at GitHub](https://github.com/nlohmann/json/issues/new/choose). Please describe your request, problem, or question as detailed as possible, and also mention the version of the library you are using as well as the version of your compiler and operating system. Opening an issue at GitHub allows other users and contributors to this library to collaborate. For instance, I have little experience with MSVC, and most issues in this regard have been solved by a growing community. If you have a look at the [closed issues](https://github.com/nlohmann/json/issues?q=is%3Aissue+is%3Aclosed), you will see that we react quite timely in most cases. + +Only if your request would contain confidential information, please [send me an email](mailto:mail@nlohmann.me). For encrypted messages, please use [this key](https://keybase.io/nlohmann/pgp_keys.asc). + +## Security + +[Commits by Niels Lohmann](https://github.com/nlohmann/json/commits) and [releases](https://github.com/nlohmann/json/releases) are signed with this [PGP Key](https://keybase.io/nlohmann/pgp_keys.asc?fingerprint=797167ae41c0a6d9232e48457f3cea63ae251b69). + +## Thanks + +I deeply appreciate the help of the following people. + + + +- [Teemperor](https://github.com/Teemperor) implemented CMake support and lcov integration, realized escape and Unicode handling in the string parser, and fixed the JSON serialization. +- [elliotgoodrich](https://github.com/elliotgoodrich) fixed an issue with double deletion in the iterator classes. +- [kirkshoop](https://github.com/kirkshoop) made the iterators of the class composable to other libraries. +- [wancw](https://github.com/wanwc) fixed a bug that hindered the class to compile with Clang. +- Tomas Åblad found a bug in the iterator implementation. +- [Joshua C. Randall](https://github.com/jrandall) fixed a bug in the floating-point serialization. +- [Aaron Burghardt](https://github.com/aburgh) implemented code to parse streams incrementally. Furthermore, he greatly improved the parser class by allowing the definition of a filter function to discard undesired elements while parsing. +- [Daniel Kopeček](https://github.com/dkopecek) fixed a bug in the compilation with GCC 5.0. +- [Florian Weber](https://github.com/Florianjw) fixed a bug in and improved the performance of the comparison operators. +- [Eric Cornelius](https://github.com/EricMCornelius) pointed out a bug in the handling with NaN and infinity values. He also improved the performance of the string escaping. +- [易思龙](https://github.com/likebeta) implemented a conversion from anonymous enums. +- [kepkin](https://github.com/kepkin) patiently pushed forward the support for Microsoft Visual studio. +- [gregmarr](https://github.com/gregmarr) simplified the implementation of reverse iterators and helped with numerous hints and improvements. In particular, he pushed forward the implementation of user-defined types. +- [Caio Luppi](https://github.com/caiovlp) fixed a bug in the Unicode handling. +- [dariomt](https://github.com/dariomt) fixed some typos in the examples. +- [Daniel Frey](https://github.com/d-frey) cleaned up some pointers and implemented exception-safe memory allocation. +- [Colin Hirsch](https://github.com/ColinH) took care of a small namespace issue. +- [Huu Nguyen](https://github.com/whoshuu) correct a variable name in the documentation. +- [Silverweed](https://github.com/silverweed) overloaded `parse()` to accept an rvalue reference. +- [dariomt](https://github.com/dariomt) fixed a subtlety in MSVC type support and implemented the `get_ref()` function to get a reference to stored values. +- [ZahlGraf](https://github.com/ZahlGraf) added a workaround that allows compilation using Android NDK. +- [whackashoe](https://github.com/whackashoe) replaced a function that was marked as unsafe by Visual Studio. +- [406345](https://github.com/406345) fixed two small warnings. +- [Glen Fernandes](https://github.com/glenfe) noted a potential portability problem in the `has_mapped_type` function. +- [Corbin Hughes](https://github.com/nibroc) fixed some typos in the contribution guidelines. +- [twelsby](https://github.com/twelsby) fixed the array subscript operator, an issue that failed the MSVC build, and floating-point parsing/dumping. He further added support for unsigned integer numbers and implemented better roundtrip support for parsed numbers. +- [Volker Diels-Grabsch](https://github.com/vog) fixed a link in the README file. +- [msm-](https://github.com/msm-) added support for American Fuzzy Lop. +- [Annihil](https://github.com/Annihil) fixed an example in the README file. +- [Themercee](https://github.com/Themercee) noted a wrong URL in the README file. +- [Lv Zheng](https://github.com/lv-zheng) fixed a namespace issue with `int64_t` and `uint64_t`. +- [abc100m](https://github.com/abc100m) analyzed the issues with GCC 4.8 and proposed a [partial solution](https://github.com/nlohmann/json/pull/212). +- [zewt](https://github.com/zewt) added useful notes to the README file about Android. +- [Róbert Márki](https://github.com/robertmrk) added a fix to use move iterators and improved the integration via CMake. +- [Chris Kitching](https://github.com/ChrisKitching) cleaned up the CMake files. +- [Tom Needham](https://github.com/06needhamt) fixed a subtle bug with MSVC 2015 which was also proposed by [Michael K.](https://github.com/Epidal). +- [Mário Feroldi](https://github.com/thelostt) fixed a small typo. +- [duncanwerner](https://github.com/duncanwerner) found a really embarrassing performance regression in the 2.0.0 release. +- [Damien](https://github.com/dtoma) fixed one of the last conversion warnings. +- [Thomas Braun](https://github.com/t-b) fixed a warning in a test case and adjusted MSVC calls in the CI. +- [Théo DELRIEU](https://github.com/theodelrieu) patiently and constructively oversaw the long way toward [iterator-range parsing](https://github.com/nlohmann/json/issues/290). He also implemented the magic behind the serialization/deserialization of user-defined types and split the single header file into smaller chunks. +- [Stefan](https://github.com/5tefan) fixed a minor issue in the documentation. +- [Vasil Dimov](https://github.com/vasild) fixed the documentation regarding conversions from `std::multiset`. +- [ChristophJud](https://github.com/ChristophJud) overworked the CMake files to ease project inclusion. +- [Vladimir Petrigo](https://github.com/vpetrigo) made a SFINAE hack more readable and added Visual Studio 17 to the build matrix. +- [Denis Andrejew](https://github.com/seeekr) fixed a grammar issue in the README file. +- [Pierre-Antoine Lacaze](https://github.com/palacaze) found a subtle bug in the `dump()` function. +- [TurpentineDistillery](https://github.com/TurpentineDistillery) pointed to [`std::locale::classic()`](https://en.cppreference.com/w/cpp/locale/locale/classic) to avoid too much locale joggling, found some nice performance improvements in the parser, improved the benchmarking code, and realized locale-independent number parsing and printing. +- [cgzones](https://github.com/cgzones) had an idea how to fix the Coverity scan. +- [Jared Grubb](https://github.com/jaredgrubb) silenced a nasty documentation warning. +- [Yixin Zhang](https://github.com/qwename) fixed an integer overflow check. +- [Bosswestfalen](https://github.com/Bosswestfalen) merged two iterator classes into a smaller one. +- [Daniel599](https://github.com/Daniel599) helped to get Travis execute the tests with Clang's sanitizers. +- [Jonathan Lee](https://github.com/vjon) fixed an example in the README file. +- [gnzlbg](https://github.com/gnzlbg) supported the implementation of user-defined types. +- [Alexej Harm](https://github.com/qis) helped to get the user-defined types working with Visual Studio. +- [Jared Grubb](https://github.com/jaredgrubb) supported the implementation of user-defined types. +- [EnricoBilla](https://github.com/EnricoBilla) noted a typo in an example. +- [Martin Hořeňovský](https://github.com/horenmar) found a way for a 2x speedup for the compilation time of the test suite. +- [ukhegg](https://github.com/ukhegg) found proposed an improvement for the examples section. +- [rswanson-ihi](https://github.com/rswanson-ihi) noted a typo in the README. +- [Mihai Stan](https://github.com/stanmihai4) fixed a bug in the comparison with `nullptr`s. +- [Tushar Maheshwari](https://github.com/tusharpm) added [cotire](https://github.com/sakra/cotire) support to speed up the compilation. +- [TedLyngmo](https://github.com/TedLyngmo) noted a typo in the README, removed unnecessary bit arithmetic, and fixed some `-Weffc++` warnings. +- [Krzysztof Woś](https://github.com/krzysztofwos) made exceptions more visible. +- [ftillier](https://github.com/ftillier) fixed a compiler warning. +- [tinloaf](https://github.com/tinloaf) made sure all pushed warnings are properly popped. +- [Fytch](https://github.com/Fytch) found a bug in the documentation. +- [Jay Sistar](https://github.com/Type1J) implemented a Meson build description. +- [Henry Lee](https://github.com/HenryRLee) fixed a warning in ICC and improved the iterator implementation. +- [Vincent Thiery](https://github.com/vthiery) maintains a package for the Conan package manager. +- [Steffen](https://github.com/koemeet) fixed a potential issue with MSVC and `std::min`. +- [Mike Tzou](https://github.com/Chocobo1) fixed some typos. +- [amrcode](https://github.com/amrcode) noted a misleading documentation about comparison of floats. +- [Oleg Endo](https://github.com/olegendo) reduced the memory consumption by replacing `` with ``. +- [dan-42](https://github.com/dan-42) cleaned up the CMake files to simplify including/reusing of the library. +- [Nikita Ofitserov](https://github.com/himikof) allowed for moving values from initializer lists. +- [Greg Hurrell](https://github.com/wincent) fixed a typo. +- [Dmitry Kukovinets](https://github.com/DmitryKuk) fixed a typo. +- [kbthomp1](https://github.com/kbthomp1) fixed an issue related to the Intel OSX compiler. +- [Markus Werle](https://github.com/daixtrose) fixed a typo. +- [WebProdPP](https://github.com/WebProdPP) fixed a subtle error in a precondition check. +- [Alex](https://github.com/leha-bot) noted an error in a code sample. +- [Tom de Geus](https://github.com/tdegeus) reported some warnings with ICC and helped fixing them. +- [Perry Kundert](https://github.com/pjkundert) simplified reading from input streams. +- [Sonu Lohani](https://github.com/sonulohani) fixed a small compilation error. +- [Jamie Seward](https://github.com/jseward) fixed all MSVC warnings. +- [Nate Vargas](https://github.com/eld00d) added a Doxygen tag file. +- [pvleuven](https://github.com/pvleuven) helped fixing a warning in ICC. +- [Pavel](https://github.com/crea7or) helped fixing some warnings in MSVC. +- [Jamie Seward](https://github.com/jseward) avoided unnecessary string copies in `find()` and `count()`. +- [Mitja](https://github.com/Itja) fixed some typos. +- [Jorrit Wronski](https://github.com/jowr) updated the Hunter package links. +- [Matthias Möller](https://github.com/TinyTinni) added a `.natvis` for the MSVC debug view. +- [bogemic](https://github.com/bogemic) fixed some C++17 deprecation warnings. +- [Eren Okka](https://github.com/erengy) fixed some MSVC warnings. +- [abolz](https://github.com/abolz) integrated the Grisu2 algorithm for proper floating-point formatting, allowing more roundtrip checks to succeed. +- [Vadim Evard](https://github.com/Pipeliner) fixed a Markdown issue in the README. +- [zerodefect](https://github.com/zerodefect) fixed a compiler warning. +- [Kert](https://github.com/kaidokert) allowed to template the string type in the serialization and added the possibility to override the exceptional behavior. +- [mark-99](https://github.com/mark-99) helped fixing an ICC error. +- [Patrik Huber](https://github.com/patrikhuber) fixed links in the README file. +- [johnfb](https://github.com/johnfb) found a bug in the implementation of CBOR's indefinite length strings. +- [Paul Fultz II](https://github.com/pfultz2) added a note on the cget package manager. +- [Wilson Lin](https://github.com/wla80) made the integration section of the README more concise. +- [RalfBielig](https://github.com/ralfbielig) detected and fixed a memory leak in the parser callback. +- [agrianius](https://github.com/agrianius) allowed to dump JSON to an alternative string type. +- [Kevin Tonon](https://github.com/ktonon) overworked the C++11 compiler checks in CMake. +- [Axel Huebl](https://github.com/ax3l) simplified a CMake check and added support for the [Spack package manager](https://spack.io). +- [Carlos O'Ryan](https://github.com/coryan) fixed a typo. +- [James Upjohn](https://github.com/jammehcow) fixed a version number in the compilers section. +- [Chuck Atkins](https://github.com/chuckatkins) adjusted the CMake files to the CMake packaging guidelines and provided documentation for the CMake integration. +- [Jan Schöppach](https://github.com/dns13) fixed a typo. +- [martin-mfg](https://github.com/martin-mfg) fixed a typo. +- [Matthias Möller](https://github.com/TinyTinni) removed the dependency from `std::stringstream`. +- [agrianius](https://github.com/agrianius) added code to use alternative string implementations. +- [Daniel599](https://github.com/Daniel599) allowed to use more algorithms with the `items()` function. +- [Julius Rakow](https://github.com/jrakow) fixed the Meson include directory and fixed the links to [cppreference.com](cppreference.com). +- [Sonu Lohani](https://github.com/sonulohani) fixed the compilation with MSVC 2015 in debug mode. +- [grembo](https://github.com/grembo) fixed the test suite and re-enabled several test cases. +- [Hyeon Kim](https://github.com/simnalamburt) introduced the macro `JSON_INTERNAL_CATCH` to control the exception handling inside the library. +- [thyu](https://github.com/thyu) fixed a compiler warning. +- [David Guthrie](https://github.com/LEgregius) fixed a subtle compilation error with Clang 3.4.2. +- [Dennis Fischer](https://github.com/dennisfischer) allowed to call `find_package` without installing the library. +- [Hyeon Kim](https://github.com/simnalamburt) fixed an issue with a double macro definition. +- [Ben Berman](https://github.com/rivertam) made some error messages more understandable. +- [zakalibit](https://github.com/zakalibit) fixed a compilation problem with the Intel C++ compiler. +- [mandreyel](https://github.com/mandreyel) fixed a compilation problem. +- [Kostiantyn Ponomarenko](https://github.com/koponomarenko) added version and license information to the Meson build file. +- [Henry Schreiner](https://github.com/henryiii) added support for GCC 4.8. +- [knilch](https://github.com/knilch0r) made sure the test suite does not stall when run in the wrong directory. +- [Antonio Borondo](https://github.com/antonioborondo) fixed an MSVC 2017 warning. +- [Dan Gendreau](https://github.com/dgendreau) implemented the `NLOHMANN_JSON_SERIALIZE_ENUM` macro to quickly define a enum/JSON mapping. +- [efp](https://github.com/efp) added line and column information to parse errors. +- [julian-becker](https://github.com/julian-becker) added BSON support. +- [Pratik Chowdhury](https://github.com/pratikpc) added support for structured bindings. +- [David Avedissian](https://github.com/davedissian) added support for Clang 5.0.1 (PS4 version). +- [Jonathan Dumaresq](https://github.com/dumarjo) implemented an input adapter to read from `FILE*`. +- [kjpus](https://github.com/kjpus) fixed a link in the documentation. +- [Manvendra Singh](https://github.com/manu-chroma) fixed a typo in the documentation. +- [ziggurat29](https://github.com/ziggurat29) fixed an MSVC warning. +- [Sylvain Corlay](https://github.com/SylvainCorlay) added code to avoid an issue with MSVC. +- [mefyl](https://github.com/mefyl) fixed a bug when JSON was parsed from an input stream. +- [Millian Poquet](https://github.com/mpoquet) allowed to install the library via Meson. +- [Michael Behrns-Miller](https://github.com/moodboom) found an issue with a missing namespace. +- [Nasztanovics Ferenc](https://github.com/naszta) fixed a compilation issue with libc 2.12. +- [Andreas Schwab](https://github.com/andreas-schwab) fixed the endian conversion. +- [Mark-Dunning](https://github.com/Mark-Dunning) fixed a warning in MSVC. +- [Gareth Sylvester-Bradley](https://github.com/garethsb-sony) added `operator/` for JSON Pointers. +- [John-Mark](https://github.com/johnmarkwayve) noted a missing header. +- [Vitaly Zaitsev](https://github.com/xvitaly) fixed compilation with GCC 9.0. +- [Laurent Stacul](https://github.com/stac47) fixed compilation with GCC 9.0. +- [Ivor Wanders](https://github.com/iwanders) helped reducing the CMake requirement to version 3.1. +- [njlr](https://github.com/njlr) updated the Buckaroo instructions. +- [Lion](https://github.com/lieff) fixed a compilation issue with GCC 7 on CentOS. +- [Isaac Nickaein](https://github.com/nickaein) improved the integer serialization performance and implemented the `contains()` function. +- [past-due](https://github.com/past-due) suppressed an unfixable warning. +- [Elvis Oric](https://github.com/elvisoric) improved Meson support. +- [Matěj Plch](https://github.com/Afforix) fixed an example in the README. +- [Mark Beckwith](https://github.com/wythe) fixed a typo. +- [scinart](https://github.com/scinart) fixed bug in the serializer. +- [Patrick Boettcher](https://github.com/pboettch) implemented `push_back()` and `pop_back()` for JSON Pointers. +- [Bruno Oliveira](https://github.com/nicoddemus) added support for Conda. +- [Michele Caini](https://github.com/skypjack) fixed links in the README. +- [Hani](https://github.com/hnkb) documented how to install the library with NuGet. +- [Mark Beckwith](https://github.com/wythe) fixed a typo. +- [yann-morin-1998](https://github.com/yann-morin-1998) helped reducing the CMake requirement to version 3.1. +- [Konstantin Podsvirov](https://github.com/podsvirov) maintains a package for the MSYS2 software distro. +- [remyabel](https://github.com/remyabel) added GNUInstallDirs to the CMake files. +- [Taylor Howard](https://github.com/taylorhoward92) fixed a unit test. +- [Gabe Ron](https://github.com/Macr0Nerd) implemented the `to_string` method. +- [Watal M. Iwasaki](https://github.com/heavywatal) fixed a Clang warning. +- [Viktor Kirilov](https://github.com/onqtam) switched the unit tests from [Catch](https://github.com/philsquared/Catch) to [doctest](https://github.com/onqtam/doctest) +- [Juncheng E](https://github.com/ejcjason) fixed a typo. +- [tete17](https://github.com/tete17) fixed a bug in the `contains` function. +- [Xav83](https://github.com/Xav83) fixed some cppcheck warnings. +- [0xflotus](https://github.com/0xflotus) fixed some typos. +- [Christian Deneke](https://github.com/chris0x44) added a const version of `json_pointer::back`. +- [Julien Hamaide](https://github.com/crazyjul) made the `items()` function work with custom string types. +- [Evan Nemerson](https://github.com/nemequ) updated fixed a bug in Hedley and updated this library accordingly. +- [Florian Pigorsch](https://github.com/flopp) fixed a lot of typos. +- [Camille Bégué](https://github.com/cbegue) fixed an issue in the conversion from `std::pair` and `std::tuple` to `json`. +- [Anthony VH](https://github.com/AnthonyVH) fixed a compile error in an enum deserialization. +- [Yuriy Vountesmery](https://github.com/ua-code-dragon) noted a subtle bug in a preprocessor check. +- [Chen](https://github.com/dota17) fixed numerous issues in the library. +- [Antony Kellermann](https://github.com/aokellermann) added a CI step for GCC 10.1. +- [Alex](https://github.com/gistrec) fixed an MSVC warning. +- [Rainer](https://github.com/rvjr) proposed an improvement in the floating-point serialization in CBOR. +- [Francois Chabot](https://github.com/FrancoisChabot) made performance improvements in the input adapters. +- [Arthur Sonzogni](https://github.com/ArthurSonzogni) documented how the library can be included via `FetchContent`. +- [Rimas Misevičius](https://github.com/rmisev) fixed an error message. +- [Alexander Myasnikov](https://github.com/alexandermyasnikov) fixed some examples and a link in the README. +- [Hubert Chathi](https://github.com/uhoreg) made CMake's version config file architecture-independent. +- [OmnipotentEntity](https://github.com/OmnipotentEntity) implemented the binary values for CBOR, MessagePack, BSON, and UBJSON. +- [ArtemSarmini](https://github.com/ArtemSarmini) fixed a compilation issue with GCC 10 and fixed a leak. +- [Evgenii Sopov](https://github.com/sea-kg) integrated the library to the wsjcpp package manager. +- [Sergey Linev](https://github.com/linev) fixed a compiler warning. +- [Miguel Magalhães](https://github.com/magamig) fixed the year in the copyright. +- [Gareth Sylvester-Bradley](https://github.com/garethsb-sony) fixed a compilation issue with MSVC. +- [Alexander “weej” Jones](https://github.com/alex-weej) fixed an example in the README. +- [Antoine Cœur](https://github.com/Coeur) fixed some typos in the documentation. +- [jothepro](https://github.com/jothepro) updated links to the Hunter package. +- [Dave Lee](https://github.com/kastiglione) fixed link in the README. +- [Joël Lamotte](https://github.com/Klaim) added instruction for using Build2's package manager. +- [Paul Jurczak](https://github.com/pauljurczak) fixed an example in the README. +- [Sonu Lohani](https://github.com/sonulohani) fixed a warning. +- [Carlos Gomes Martinho](https://github.com/gocarlos) updated the Conan package source. +- [Konstantin Podsvirov](https://github.com/podsvirov) fixed the MSYS2 package documentation. +- [Tridacnid](https://github.com/Tridacnid) improved the CMake tests. +- [Michael](https://github.com/MBalszun) fixed MSVC warnings. +- [Quentin Barbarat](https://github.com/quentin-dev) fixed an example in the documentation. +- [XyFreak](https://github.com/XyFreak) fixed a compiler warning. +- [TotalCaesar659](https://github.com/TotalCaesar659) fixed links in the README. +- [Tanuj Garg](https://github.com/tanuj208) improved the fuzzer coverage for UBSAN input. +- [AODQ](https://github.com/AODQ) fixed a compiler warning. +- [jwittbrodt](https://github.com/jwittbrodt) made `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE` inline. +- [pfeatherstone](https://github.com/pfeatherstone) improved the upper bound of arguments of the `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`/`NLOHMANN_DEFINE_TYPE_INTRUSIVE` macros. +- [Jan Procházka](https://github.com/jprochazk) fixed a bug in the CBOR parser for binary and string values. +- [T0b1-iOS](https://github.com/T0b1-iOS) fixed a bug in the new hash implementation. +- [Matthew Bauer](https://github.com/matthewbauer) adjusted the CBOR writer to create tags for binary subtypes. +- [gatopeich](https://github.com/gatopeich) implemented an ordered map container for `nlohmann::ordered_json`. +- [Érico Nogueira Rolim](https://github.com/ericonr) added support for pkg-config. +- [KonanM](https://github.com/KonanM) proposed an implementation for the `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`/`NLOHMANN_DEFINE_TYPE_INTRUSIVE` macros. +- [Guillaume Racicot](https://github.com/gracicot) implemented `string_view` support and allowed C++20 support. +- [Alex Reinking](https://github.com/alexreinking) improved CMake support for `FetchContent`. +- [Hannes Domani](https://github.com/ssbssa) provided a GDB pretty printer. +- Lars Wirzenius reviewed the README file. +- [Jun Jie](https://github.com/ongjunjie) fixed a compiler path in the CMake scripts. +- [Ronak Buch](https://github.com/rbuch) fixed typos in the documentation. +- [Alexander Karzhenkov](https://github.com/karzhenkov) fixed a move constructor and the Travis builds. +- [Leonardo Lima](https://github.com/leozz37) added CPM.Cmake support. +- [Joseph Blackman](https://github.com/jbzdarkid) fixed a warning. +- [Yaroslav](https://github.com/YarikTH) updated doctest and implemented unit tests. +- [Martin Stump](https://github.com/globberwops) fixed a bug in the CMake files. +- [Jaakko Moisio](https://github.com/jasujm) fixed a bug in the input adapters. +- [bl-ue](https://github.com/bl-ue) fixed some Markdown issues in the README file. +- [William A. Wieselquist](https://github.com/wawiesel) fixed an example from the README. +- [abbaswasim](https://github.com/abbaswasim) fixed an example from the README. +- [Remy Jette](https://github.com/remyjette) fixed a warning. +- [Fraser](https://github.com/frasermarlow) fixed the documentation. +- [Ben Beasley](https://github.com/musicinmybrain) updated doctest. +- [Doron Behar](https://github.com/doronbehar) fixed pkg-config.pc. +- [raduteo](https://github.com/raduteo) fixed a warning. +- [David Pfahler](https://github.com/theShmoo) added the possibility to compile the library without I/O support. +- [Morten Fyhn Amundsen](https://github.com/mortenfyhn) fixed a typo. +- [jpl-mac](https://github.com/jpl-mac) allowed to treat the library as a system header in CMake. +- [Jason Dsouza](https://github.com/jasmcaus) fixed the indentation of the CMake file. +- [offa](https://github.com/offa) added a link to Conan Center to the documentation. +- [TotalCaesar659](https://github.com/TotalCaesar659) updated the links in the documentation to use HTTPS. +- [Rafail Giavrimis](https://github.com/grafail) fixed the Google Benchmark default branch. +- [Louis Dionne](https://github.com/ldionne) fixed a conversion operator. +- [justanotheranonymoususer](https://github.com/justanotheranonymoususer) made the examples in the README more consistent. +- [Finkman](https://github.com/Finkman) suppressed some `-Wfloat-equal` warnings. +- [Ferry Huberts](https://github.com/fhuberts) fixed `-Wswitch-enum` warnings. +- [Arseniy Terekhin](https://github.com/senyai) made the GDB pretty-printer robust against unset variable names. +- [Amir Masoud Abdol](https://github.com/amirmasoudabdol) updated the Homebrew command as nlohmann/json is now in homebrew-core. +- [Hallot](https://github.com/Hallot) fixed some `-Wextra-semi-stmt warnings`. +- [Giovanni Cerretani](https://github.com/gcerretani) fixed `-Wunused` warnings on `JSON_DIAGNOSTICS`. + +Thanks a lot for helping out! Please [let me know](mailto:mail@nlohmann.me) if I forgot someone. + + +## Used third-party tools + +The library itself consists of a single header file licensed under the MIT license. However, it is built, tested, documented, and whatnot using a lot of third-party tools and services. Thanks a lot! + +- [**amalgamate.py - Amalgamate C source and header files**](https://github.com/edlund/amalgamate) to create a single header file +- [**American fuzzy lop**](https://lcamtuf.coredump.cx/afl/) for fuzz testing +- [**AppVeyor**](https://www.appveyor.com) for [continuous integration](https://ci.appveyor.com/project/nlohmann/json) on Windows +- [**Artistic Style**](http://astyle.sourceforge.net) for automatic source code indentation +- [**Clang**](https://clang.llvm.org) for compilation with code sanitizers +- [**CMake**](https://cmake.org) for build automation +- [**Codacity**](https://www.codacy.com) for further [code analysis](https://www.codacy.com/app/nlohmann/json) +- [**Coveralls**](https://coveralls.io) to measure [code coverage](https://coveralls.io/github/nlohmann/json) +- [**Coverity Scan**](https://scan.coverity.com) for [static analysis](https://scan.coverity.com/projects/nlohmann-json) +- [**cppcheck**](http://cppcheck.sourceforge.net) for static analysis +- [**doctest**](https://github.com/onqtam/doctest) for the unit tests +- [**Doxygen**](https://www.doxygen.nl/index.html) to generate [documentation](https://nlohmann.github.io/json/doxygen/index.html) +- [**git-update-ghpages**](https://github.com/rstacruz/git-update-ghpages) to upload the documentation to gh-pages +- [**GitHub Changelog Generator**](https://github.com/skywinder/github-changelog-generator) to generate the [ChangeLog](https://github.com/nlohmann/json/blob/develop/ChangeLog.md) +- [**Google Benchmark**](https://github.com/google/benchmark) to implement the benchmarks +- [**Hedley**](https://nemequ.github.io/hedley/) to avoid re-inventing several compiler-agnostic feature macros +- [**lcov**](http://ltp.sourceforge.net/coverage/lcov.php) to process coverage information and create a HTML view +- [**libFuzzer**](https://llvm.org/docs/LibFuzzer.html) to implement fuzz testing for OSS-Fuzz +- [**OSS-Fuzz**](https://github.com/google/oss-fuzz) for continuous fuzz testing of the library ([project repository](https://github.com/google/oss-fuzz/tree/master/projects/json)) +- [**Probot**](https://probot.github.io) for automating maintainer tasks such as closing stale issues, requesting missing information, or detecting toxic comments. +- [**send_to_wandbox**](https://github.com/nlohmann/json/blob/develop/doc/scripts/send_to_wandbox.py) to send code examples to [Wandbox](https://wandbox.org) +- [**Travis**](https://travis-ci.org) for [continuous integration](https://travis-ci.org/nlohmann/json) on Linux and macOS +- [**Valgrind**](https://valgrind.org) to check for correct memory management +- [**Wandbox**](https://wandbox.org) for [online examples](https://wandbox.org/permlink/7p8sQckddTc0Y81T) + + +## Projects using JSON for Modern C++ + +The library is currently used in Apple macOS Sierra and iOS 10. I am not sure what they are using the library for, but I am happy that it runs on so many devices. + + +## Notes + +### Character encoding + +The library supports **Unicode input** as follows: + +- Only **UTF-8** encoded input is supported which is the default encoding for JSON according to [RFC 8259](https://tools.ietf.org/html/rfc8259.html#section-8.1). +- `std::u16string` and `std::u32string` can be parsed, assuming UTF-16 and UTF-32 encoding, respectively. These encodings are not supported when reading from files or other input containers. +- Other encodings such as Latin-1 or ISO 8859-1 are **not** supported and will yield parse or serialization errors. +- [Unicode noncharacters](https://www.unicode.org/faq/private_use.html#nonchar1) will not be replaced by the library. +- Invalid surrogates (e.g., incomplete pairs such as `\uDEAD`) will yield parse errors. +- The strings stored in the library are UTF-8 encoded. When using the default string type (`std::string`), note that its length/size functions return the number of stored bytes rather than the number of characters or glyphs. +- When you store strings with different encodings in the library, calling [`dump()`](https://nlohmann.github.io/json/api/basic_json/dump/) may throw an exception unless `json::error_handler_t::replace` or `json::error_handler_t::ignore` are used as error handlers. +- To store wide strings (e.g., `std::wstring`), you need to convert them to a a UTF-8 encoded `std::string` before, see [an example](https://json.nlohmann.me/home/faq/#wide-string-handling). + +### Comments in JSON + +This library does not support comments by default. It does so for three reasons: + +1. Comments are not part of the [JSON specification](https://tools.ietf.org/html/rfc8259). You may argue that `//` or `/* */` are allowed in JavaScript, but JSON is not JavaScript. +2. This was not an oversight: Douglas Crockford [wrote on this](https://plus.google.com/118095276221607585885/posts/RK8qyGVaGSr) in May 2012: + + > I removed comments from JSON because I saw people were using them to hold parsing directives, a practice which would have destroyed interoperability. I know that the lack of comments makes some people sad, but it shouldn't. + + > Suppose you are using JSON to keep configuration files, which you would like to annotate. Go ahead and insert all the comments you like. Then pipe it through JSMin before handing it to your JSON parser. + +3. It is dangerous for interoperability if some libraries would add comment support while others don't. Please check [The Harmful Consequences of the Robustness Principle](https://tools.ietf.org/html/draft-iab-protocol-maintenance-01) on this. + +However, you can pass set parameter `ignore_comments` to true in the `parse` function to ignore `//` or `/* */` comments. Comments will then be treated as whitespace. + +### Order of object keys + +By default, the library does not preserve the **insertion order of object elements**. This is standards-compliant, as the [JSON standard](https://tools.ietf.org/html/rfc8259.html) defines objects as "an unordered collection of zero or more name/value pairs". + +If you do want to preserve the insertion order, you can try the type [`nlohmann::ordered_json`](https://github.com/nlohmann/json/issues/2179). Alternatively, you can use a more sophisticated ordered map like [`tsl::ordered_map`](https://github.com/Tessil/ordered-map) ([integration](https://github.com/nlohmann/json/issues/546#issuecomment-304447518)) or [`nlohmann::fifo_map`](https://github.com/nlohmann/fifo_map) ([integration](https://github.com/nlohmann/json/issues/485#issuecomment-333652309)). + +### Memory Release + +We checked with Valgrind and the Address Sanitizer (ASAN) that there are no memory leaks. + +If you find that a parsing program with this library does not release memory, please consider the following case and it maybe unrelated to this library. + +**Your program is compiled with glibc.** There is a tunable threshold that glibc uses to decide whether to actually return memory to the system or whether to cache it for later reuse. If in your program you make lots of small allocations and those small allocations are not a contiguous block and are presumably below the threshold, then they will not get returned to the OS. +Here is a related issue [#1924](https://github.com/nlohmann/json/issues/1924). + +### Further notes + +- The code contains numerous debug **assertions** which can be switched off by defining the preprocessor macro `NDEBUG`, see the [documentation of `assert`](https://en.cppreference.com/w/cpp/error/assert). In particular, note [`operator[]`](https://nlohmann.github.io/json/api/basic_json/operator%5B%5D/) implements **unchecked access** for const objects: If the given key is not present, the behavior is undefined (think of a dereferenced null pointer) and yields an [assertion failure](https://github.com/nlohmann/json/issues/289) if assertions are switched on. If you are not sure whether an element in an object exists, use checked access with the [`at()` function](https://nlohmann.github.io/json/api/basic_json/at/). Furthermore, you can define `JSON_ASSERT(x)` to replace calls to `assert(x)`. +- As the exact type of a number is not defined in the [JSON specification](https://tools.ietf.org/html/rfc8259.html), this library tries to choose the best fitting C++ number type automatically. As a result, the type `double` may be used to store numbers which may yield [**floating-point exceptions**](https://github.com/nlohmann/json/issues/181) in certain rare situations if floating-point exceptions have been unmasked in the calling code. These exceptions are not caused by the library and need to be fixed in the calling code, such as by re-masking the exceptions prior to calling library functions. +- The code can be compiled without C++ **runtime type identification** features; that is, you can use the `-fno-rtti` compiler flag. +- **Exceptions** are used widely within the library. They can, however, be switched off with either using the compiler flag `-fno-exceptions` or by defining the symbol `JSON_NOEXCEPTION`. In this case, exceptions are replaced by `abort()` calls. You can further control this behavior by defining `JSON_THROW_USER` (overriding `throw`), `JSON_TRY_USER` (overriding `try`), and `JSON_CATCH_USER` (overriding `catch`). Note that `JSON_THROW_USER` should leave the current scope (e.g., by throwing or aborting), as continuing after it may yield undefined behavior. Note the explanatory [`what()`](https://en.cppreference.com/w/cpp/error/exception/what) string of exceptions is not available for MSVC if exceptions are disabled, see [#2824](https://github.com/nlohmann/json/discussions/2824). + +## Execute unit tests + +To compile and run the tests, you need to execute + +```sh +$ mkdir build +$ cd build +$ cmake .. -DJSON_BuildTests=On +$ cmake --build . +$ ctest --output-on-failure +``` + +Note that during the `ctest` stage, several JSON test files are downloaded from an [external repository](https://github.com/nlohmann/json_test_data). If policies forbid downloading artifacts during testing, you can download the files yourself and pass the directory with the test files via `-DJSON_TestDataDirectory=path` to CMake. Then, no Internet connectivity is required. See [issue #2189](https://github.com/nlohmann/json/issues/2189) for more information. + +In case you have downloaded the library rather than checked out the code via Git, test `cmake_fetch_content_configure` will fail. Please execute `ctest -LE git_required` to skip these tests. See [issue #2189](https://github.com/nlohmann/json/issues/2189) for more information. + +Some tests change the installed files and hence make the whole process not reproducible. Please execute `ctest -LE not_reproducible` to skip these tests. See [issue #2324](https://github.com/nlohmann/json/issues/2324) for more information. + +Note you need to call `cmake -LE "not_reproducible|git_required"` to exclude both labels. See [issue #2596](https://github.com/nlohmann/json/issues/2596) for more information. + +As Intel compilers use unsafe floating point optimization by default, the unit tests may fail. Use flag [`/fp:precise`](https://software.intel.com/content/www/us/en/develop/documentation/cpp-compiler-developer-guide-and-reference/top/compiler-reference/compiler-options/compiler-option-details/floating-point-options/fp-model-fp.html) then. diff --git a/thirdparty/nlohmann_json/single_include/nlohmann/json.hpp b/thirdparty/nlohmann_json/single_include/nlohmann/json.hpp new file mode 100644 index 000000000..8959265da --- /dev/null +++ b/thirdparty/nlohmann_json/single_include/nlohmann/json.hpp @@ -0,0 +1,26640 @@ +/* + __ _____ _____ _____ + __| | __| | | | JSON for Modern C++ +| | |__ | | | | | | version 3.10.2 +|_____|_____|_____|_|___| https://github.com/nlohmann/json + +Licensed under the MIT License . +SPDX-License-Identifier: MIT +Copyright (c) 2013-2019 Niels Lohmann . + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. +*/ + +#ifndef INCLUDE_NLOHMANN_JSON_HPP_ +#define INCLUDE_NLOHMANN_JSON_HPP_ + +#define NLOHMANN_JSON_VERSION_MAJOR 3 +#define NLOHMANN_JSON_VERSION_MINOR 10 +#define NLOHMANN_JSON_VERSION_PATCH 2 + +#include // all_of, find, for_each +#include // nullptr_t, ptrdiff_t, size_t +#include // hash, less +#include // initializer_list +#ifndef JSON_NO_IO + #include // istream, ostream +#endif // JSON_NO_IO +#include // random_access_iterator_tag +#include // unique_ptr +#include // accumulate +#include // string, stoi, to_string +#include // declval, forward, move, pair, swap +#include // vector + +// #include + + +#include +#include + +// #include + + +#include // transform +#include // array +#include // forward_list +#include // inserter, front_inserter, end +#include // map +#include // string +#include // tuple, make_tuple +#include // is_arithmetic, is_same, is_enum, underlying_type, is_convertible +#include // unordered_map +#include // pair, declval +#include // valarray + +// #include + + +#include // exception +#include // runtime_error +#include // to_string +#include // vector + +// #include + + +#include // array +#include // size_t +#include // uint8_t +#include // string + +namespace nlohmann +{ +namespace detail +{ +/////////////////////////// +// JSON type enumeration // +/////////////////////////// + +/*! +@brief the JSON type enumeration + +This enumeration collects the different JSON types. It is internally used to +distinguish the stored values, and the functions @ref basic_json::is_null(), +@ref basic_json::is_object(), @ref basic_json::is_array(), +@ref basic_json::is_string(), @ref basic_json::is_boolean(), +@ref basic_json::is_number() (with @ref basic_json::is_number_integer(), +@ref basic_json::is_number_unsigned(), and @ref basic_json::is_number_float()), +@ref basic_json::is_discarded(), @ref basic_json::is_primitive(), and +@ref basic_json::is_structured() rely on it. + +@note There are three enumeration entries (number_integer, number_unsigned, and +number_float), because the library distinguishes these three types for numbers: +@ref basic_json::number_unsigned_t is used for unsigned integers, +@ref basic_json::number_integer_t is used for signed integers, and +@ref basic_json::number_float_t is used for floating-point numbers or to +approximate integers which do not fit in the limits of their respective type. + +@sa see @ref basic_json::basic_json(const value_t value_type) -- create a JSON +value with the default value for a given type + +@since version 1.0.0 +*/ +enum class value_t : std::uint8_t +{ + null, ///< null value + object, ///< object (unordered set of name/value pairs) + array, ///< array (ordered collection of values) + string, ///< string value + boolean, ///< boolean value + number_integer, ///< number value (signed integer) + number_unsigned, ///< number value (unsigned integer) + number_float, ///< number value (floating-point) + binary, ///< binary array (ordered collection of bytes) + discarded ///< discarded by the parser callback function +}; + +/*! +@brief comparison operator for JSON types + +Returns an ordering that is similar to Python: +- order: null < boolean < number < object < array < string < binary +- furthermore, each type is not smaller than itself +- discarded values are not comparable +- binary is represented as a b"" string in python and directly comparable to a + string; however, making a binary array directly comparable with a string would + be surprising behavior in a JSON file. + +@since version 1.0.0 +*/ +inline bool operator<(const value_t lhs, const value_t rhs) noexcept +{ + static constexpr std::array order = {{ + 0 /* null */, 3 /* object */, 4 /* array */, 5 /* string */, + 1 /* boolean */, 2 /* integer */, 2 /* unsigned */, 2 /* float */, + 6 /* binary */ + } + }; + + const auto l_index = static_cast(lhs); + const auto r_index = static_cast(rhs); + return l_index < order.size() && r_index < order.size() && order[l_index] < order[r_index]; +} +} // namespace detail +} // namespace nlohmann + +// #include + + +#include +// #include + + +#include // pair +// #include + + +/* Hedley - https://nemequ.github.io/hedley + * Created by Evan Nemerson + * + * To the extent possible under law, the author(s) have dedicated all + * copyright and related and neighboring rights to this software to + * the public domain worldwide. This software is distributed without + * any warranty. + * + * For details, see . + * SPDX-License-Identifier: CC0-1.0 + */ + +#if !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < 15) +#if defined(JSON_HEDLEY_VERSION) + #undef JSON_HEDLEY_VERSION +#endif +#define JSON_HEDLEY_VERSION 15 + +#if defined(JSON_HEDLEY_STRINGIFY_EX) + #undef JSON_HEDLEY_STRINGIFY_EX +#endif +#define JSON_HEDLEY_STRINGIFY_EX(x) #x + +#if defined(JSON_HEDLEY_STRINGIFY) + #undef JSON_HEDLEY_STRINGIFY +#endif +#define JSON_HEDLEY_STRINGIFY(x) JSON_HEDLEY_STRINGIFY_EX(x) + +#if defined(JSON_HEDLEY_CONCAT_EX) + #undef JSON_HEDLEY_CONCAT_EX +#endif +#define JSON_HEDLEY_CONCAT_EX(a,b) a##b + +#if defined(JSON_HEDLEY_CONCAT) + #undef JSON_HEDLEY_CONCAT +#endif +#define JSON_HEDLEY_CONCAT(a,b) JSON_HEDLEY_CONCAT_EX(a,b) + +#if defined(JSON_HEDLEY_CONCAT3_EX) + #undef JSON_HEDLEY_CONCAT3_EX +#endif +#define JSON_HEDLEY_CONCAT3_EX(a,b,c) a##b##c + +#if defined(JSON_HEDLEY_CONCAT3) + #undef JSON_HEDLEY_CONCAT3 +#endif +#define JSON_HEDLEY_CONCAT3(a,b,c) JSON_HEDLEY_CONCAT3_EX(a,b,c) + +#if defined(JSON_HEDLEY_VERSION_ENCODE) + #undef JSON_HEDLEY_VERSION_ENCODE +#endif +#define JSON_HEDLEY_VERSION_ENCODE(major,minor,revision) (((major) * 1000000) + ((minor) * 1000) + (revision)) + +#if defined(JSON_HEDLEY_VERSION_DECODE_MAJOR) + #undef JSON_HEDLEY_VERSION_DECODE_MAJOR +#endif +#define JSON_HEDLEY_VERSION_DECODE_MAJOR(version) ((version) / 1000000) + +#if defined(JSON_HEDLEY_VERSION_DECODE_MINOR) + #undef JSON_HEDLEY_VERSION_DECODE_MINOR +#endif +#define JSON_HEDLEY_VERSION_DECODE_MINOR(version) (((version) % 1000000) / 1000) + +#if defined(JSON_HEDLEY_VERSION_DECODE_REVISION) + #undef JSON_HEDLEY_VERSION_DECODE_REVISION +#endif +#define JSON_HEDLEY_VERSION_DECODE_REVISION(version) ((version) % 1000) + +#if defined(JSON_HEDLEY_GNUC_VERSION) + #undef JSON_HEDLEY_GNUC_VERSION +#endif +#if defined(__GNUC__) && defined(__GNUC_PATCHLEVEL__) + #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__) +#elif defined(__GNUC__) + #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, 0) +#endif + +#if defined(JSON_HEDLEY_GNUC_VERSION_CHECK) + #undef JSON_HEDLEY_GNUC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_GNUC_VERSION) + #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GNUC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_MSVC_VERSION) + #undef JSON_HEDLEY_MSVC_VERSION +#endif +#if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 140000000) && !defined(__ICL) + #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 10000000, (_MSC_FULL_VER % 10000000) / 100000, (_MSC_FULL_VER % 100000) / 100) +#elif defined(_MSC_FULL_VER) && !defined(__ICL) + #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 1000000, (_MSC_FULL_VER % 1000000) / 10000, (_MSC_FULL_VER % 10000) / 10) +#elif defined(_MSC_VER) && !defined(__ICL) + #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_VER / 100, _MSC_VER % 100, 0) +#endif + +#if defined(JSON_HEDLEY_MSVC_VERSION_CHECK) + #undef JSON_HEDLEY_MSVC_VERSION_CHECK +#endif +#if !defined(JSON_HEDLEY_MSVC_VERSION) + #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (0) +#elif defined(_MSC_VER) && (_MSC_VER >= 1400) + #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 10000000) + (minor * 100000) + (patch))) +#elif defined(_MSC_VER) && (_MSC_VER >= 1200) + #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch))) +#else + #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_VER >= ((major * 100) + (minor))) +#endif + +#if defined(JSON_HEDLEY_INTEL_VERSION) + #undef JSON_HEDLEY_INTEL_VERSION +#endif +#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && !defined(__ICL) + #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, __INTEL_COMPILER_UPDATE) +#elif defined(__INTEL_COMPILER) && !defined(__ICL) + #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, 0) +#endif + +#if defined(JSON_HEDLEY_INTEL_VERSION_CHECK) + #undef JSON_HEDLEY_INTEL_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_INTEL_VERSION) + #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_INTEL_CL_VERSION) + #undef JSON_HEDLEY_INTEL_CL_VERSION +#endif +#if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE) && defined(__ICL) + #define JSON_HEDLEY_INTEL_CL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER, __INTEL_COMPILER_UPDATE, 0) +#endif + +#if defined(JSON_HEDLEY_INTEL_CL_VERSION_CHECK) + #undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_INTEL_CL_VERSION) + #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_CL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_INTEL_CL_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_PGI_VERSION) + #undef JSON_HEDLEY_PGI_VERSION +#endif +#if defined(__PGI) && defined(__PGIC__) && defined(__PGIC_MINOR__) && defined(__PGIC_PATCHLEVEL__) + #define JSON_HEDLEY_PGI_VERSION JSON_HEDLEY_VERSION_ENCODE(__PGIC__, __PGIC_MINOR__, __PGIC_PATCHLEVEL__) +#endif + +#if defined(JSON_HEDLEY_PGI_VERSION_CHECK) + #undef JSON_HEDLEY_PGI_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_PGI_VERSION) + #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PGI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_SUNPRO_VERSION) + #undef JSON_HEDLEY_SUNPRO_VERSION +#endif +#if defined(__SUNPRO_C) && (__SUNPRO_C > 0x1000) + #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_C >> 16) & 0xf) * 10) + ((__SUNPRO_C >> 12) & 0xf), (((__SUNPRO_C >> 8) & 0xf) * 10) + ((__SUNPRO_C >> 4) & 0xf), (__SUNPRO_C & 0xf) * 10) +#elif defined(__SUNPRO_C) + #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_C >> 8) & 0xf, (__SUNPRO_C >> 4) & 0xf, (__SUNPRO_C) & 0xf) +#elif defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x1000) + #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_CC >> 16) & 0xf) * 10) + ((__SUNPRO_CC >> 12) & 0xf), (((__SUNPRO_CC >> 8) & 0xf) * 10) + ((__SUNPRO_CC >> 4) & 0xf), (__SUNPRO_CC & 0xf) * 10) +#elif defined(__SUNPRO_CC) + #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_CC >> 8) & 0xf, (__SUNPRO_CC >> 4) & 0xf, (__SUNPRO_CC) & 0xf) +#endif + +#if defined(JSON_HEDLEY_SUNPRO_VERSION_CHECK) + #undef JSON_HEDLEY_SUNPRO_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_SUNPRO_VERSION) + #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_SUNPRO_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION) + #undef JSON_HEDLEY_EMSCRIPTEN_VERSION +#endif +#if defined(__EMSCRIPTEN__) + #define JSON_HEDLEY_EMSCRIPTEN_VERSION JSON_HEDLEY_VERSION_ENCODE(__EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__) +#endif + +#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK) + #undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION) + #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_EMSCRIPTEN_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_ARM_VERSION) + #undef JSON_HEDLEY_ARM_VERSION +#endif +#if defined(__CC_ARM) && defined(__ARMCOMPILER_VERSION) + #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCOMPILER_VERSION / 1000000, (__ARMCOMPILER_VERSION % 1000000) / 10000, (__ARMCOMPILER_VERSION % 10000) / 100) +#elif defined(__CC_ARM) && defined(__ARMCC_VERSION) + #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCC_VERSION / 1000000, (__ARMCC_VERSION % 1000000) / 10000, (__ARMCC_VERSION % 10000) / 100) +#endif + +#if defined(JSON_HEDLEY_ARM_VERSION_CHECK) + #undef JSON_HEDLEY_ARM_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_ARM_VERSION) + #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_ARM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_IBM_VERSION) + #undef JSON_HEDLEY_IBM_VERSION +#endif +#if defined(__ibmxl__) + #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ibmxl_version__, __ibmxl_release__, __ibmxl_modification__) +#elif defined(__xlC__) && defined(__xlC_ver__) + #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, (__xlC_ver__ >> 8) & 0xff) +#elif defined(__xlC__) + #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, 0) +#endif + +#if defined(JSON_HEDLEY_IBM_VERSION_CHECK) + #undef JSON_HEDLEY_IBM_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_IBM_VERSION) + #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IBM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_TI_VERSION) + #undef JSON_HEDLEY_TI_VERSION +#endif +#if \ + defined(__TI_COMPILER_VERSION__) && \ + ( \ + defined(__TMS470__) || defined(__TI_ARM__) || \ + defined(__MSP430__) || \ + defined(__TMS320C2000__) \ + ) +#if (__TI_COMPILER_VERSION__ >= 16000000) + #define JSON_HEDLEY_TI_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif +#endif + +#if defined(JSON_HEDLEY_TI_VERSION_CHECK) + #undef JSON_HEDLEY_TI_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_VERSION) + #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_TI_CL2000_VERSION) + #undef JSON_HEDLEY_TI_CL2000_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C2000__) + #define JSON_HEDLEY_TI_CL2000_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif + +#if defined(JSON_HEDLEY_TI_CL2000_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CL2000_VERSION) + #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL2000_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CL2000_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_TI_CL430_VERSION) + #undef JSON_HEDLEY_TI_CL430_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__MSP430__) + #define JSON_HEDLEY_TI_CL430_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif + +#if defined(JSON_HEDLEY_TI_CL430_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CL430_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CL430_VERSION) + #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL430_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CL430_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_TI_ARMCL_VERSION) + #undef JSON_HEDLEY_TI_ARMCL_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && (defined(__TMS470__) || defined(__TI_ARM__)) + #define JSON_HEDLEY_TI_ARMCL_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif + +#if defined(JSON_HEDLEY_TI_ARMCL_VERSION_CHECK) + #undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_ARMCL_VERSION) + #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_ARMCL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_TI_CL6X_VERSION) + #undef JSON_HEDLEY_TI_CL6X_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__TMS320C6X__) + #define JSON_HEDLEY_TI_CL6X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif + +#if defined(JSON_HEDLEY_TI_CL6X_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CL6X_VERSION) + #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL6X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CL6X_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_TI_CL7X_VERSION) + #undef JSON_HEDLEY_TI_CL7X_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__C7000__) + #define JSON_HEDLEY_TI_CL7X_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif + +#if defined(JSON_HEDLEY_TI_CL7X_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CL7X_VERSION) + #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CL7X_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CL7X_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_TI_CLPRU_VERSION) + #undef JSON_HEDLEY_TI_CLPRU_VERSION +#endif +#if defined(__TI_COMPILER_VERSION__) && defined(__PRU__) + #define JSON_HEDLEY_TI_CLPRU_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000)) +#endif + +#if defined(JSON_HEDLEY_TI_CLPRU_VERSION_CHECK) + #undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TI_CLPRU_VERSION) + #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_CLPRU_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_CRAY_VERSION) + #undef JSON_HEDLEY_CRAY_VERSION +#endif +#if defined(_CRAYC) + #if defined(_RELEASE_PATCHLEVEL) + #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, _RELEASE_PATCHLEVEL) + #else + #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, 0) + #endif +#endif + +#if defined(JSON_HEDLEY_CRAY_VERSION_CHECK) + #undef JSON_HEDLEY_CRAY_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_CRAY_VERSION) + #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_CRAY_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_IAR_VERSION) + #undef JSON_HEDLEY_IAR_VERSION +#endif +#if defined(__IAR_SYSTEMS_ICC__) + #if __VER__ > 1000 + #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE((__VER__ / 1000000), ((__VER__ / 1000) % 1000), (__VER__ % 1000)) + #else + #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE(__VER__ / 100, __VER__ % 100, 0) + #endif +#endif + +#if defined(JSON_HEDLEY_IAR_VERSION_CHECK) + #undef JSON_HEDLEY_IAR_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_IAR_VERSION) + #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IAR_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_TINYC_VERSION) + #undef JSON_HEDLEY_TINYC_VERSION +#endif +#if defined(__TINYC__) + #define JSON_HEDLEY_TINYC_VERSION JSON_HEDLEY_VERSION_ENCODE(__TINYC__ / 1000, (__TINYC__ / 100) % 10, __TINYC__ % 100) +#endif + +#if defined(JSON_HEDLEY_TINYC_VERSION_CHECK) + #undef JSON_HEDLEY_TINYC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_TINYC_VERSION) + #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TINYC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_DMC_VERSION) + #undef JSON_HEDLEY_DMC_VERSION +#endif +#if defined(__DMC__) + #define JSON_HEDLEY_DMC_VERSION JSON_HEDLEY_VERSION_ENCODE(__DMC__ >> 8, (__DMC__ >> 4) & 0xf, __DMC__ & 0xf) +#endif + +#if defined(JSON_HEDLEY_DMC_VERSION_CHECK) + #undef JSON_HEDLEY_DMC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_DMC_VERSION) + #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_DMC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_COMPCERT_VERSION) + #undef JSON_HEDLEY_COMPCERT_VERSION +#endif +#if defined(__COMPCERT_VERSION__) + #define JSON_HEDLEY_COMPCERT_VERSION JSON_HEDLEY_VERSION_ENCODE(__COMPCERT_VERSION__ / 10000, (__COMPCERT_VERSION__ / 100) % 100, __COMPCERT_VERSION__ % 100) +#endif + +#if defined(JSON_HEDLEY_COMPCERT_VERSION_CHECK) + #undef JSON_HEDLEY_COMPCERT_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_COMPCERT_VERSION) + #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_COMPCERT_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_PELLES_VERSION) + #undef JSON_HEDLEY_PELLES_VERSION +#endif +#if defined(__POCC__) + #define JSON_HEDLEY_PELLES_VERSION JSON_HEDLEY_VERSION_ENCODE(__POCC__ / 100, __POCC__ % 100, 0) +#endif + +#if defined(JSON_HEDLEY_PELLES_VERSION_CHECK) + #undef JSON_HEDLEY_PELLES_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_PELLES_VERSION) + #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PELLES_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_MCST_LCC_VERSION) + #undef JSON_HEDLEY_MCST_LCC_VERSION +#endif +#if defined(__LCC__) && defined(__LCC_MINOR__) + #define JSON_HEDLEY_MCST_LCC_VERSION JSON_HEDLEY_VERSION_ENCODE(__LCC__ / 100, __LCC__ % 100, __LCC_MINOR__) +#endif + +#if defined(JSON_HEDLEY_MCST_LCC_VERSION_CHECK) + #undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_MCST_LCC_VERSION) + #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_MCST_LCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_MCST_LCC_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_GCC_VERSION) + #undef JSON_HEDLEY_GCC_VERSION +#endif +#if \ + defined(JSON_HEDLEY_GNUC_VERSION) && \ + !defined(__clang__) && \ + !defined(JSON_HEDLEY_INTEL_VERSION) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_ARM_VERSION) && \ + !defined(JSON_HEDLEY_CRAY_VERSION) && \ + !defined(JSON_HEDLEY_TI_VERSION) && \ + !defined(JSON_HEDLEY_TI_ARMCL_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL430_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL2000_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL6X_VERSION) && \ + !defined(JSON_HEDLEY_TI_CL7X_VERSION) && \ + !defined(JSON_HEDLEY_TI_CLPRU_VERSION) && \ + !defined(__COMPCERT__) && \ + !defined(JSON_HEDLEY_MCST_LCC_VERSION) + #define JSON_HEDLEY_GCC_VERSION JSON_HEDLEY_GNUC_VERSION +#endif + +#if defined(JSON_HEDLEY_GCC_VERSION_CHECK) + #undef JSON_HEDLEY_GCC_VERSION_CHECK +#endif +#if defined(JSON_HEDLEY_GCC_VERSION) + #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch)) +#else + #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (0) +#endif + +#if defined(JSON_HEDLEY_HAS_ATTRIBUTE) + #undef JSON_HEDLEY_HAS_ATTRIBUTE +#endif +#if \ + defined(__has_attribute) && \ + ( \ + (!defined(JSON_HEDLEY_IAR_VERSION) || JSON_HEDLEY_IAR_VERSION_CHECK(8,5,9)) \ + ) +# define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) __has_attribute(attribute) +#else +# define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) (0) +#endif + +#if defined(JSON_HEDLEY_GNUC_HAS_ATTRIBUTE) + #undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE +#endif +#if defined(__has_attribute) + #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) +#else + #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_GCC_HAS_ATTRIBUTE) + #undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE +#endif +#if defined(__has_attribute) + #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) +#else + #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE) + #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE +#endif +#if \ + defined(__has_cpp_attribute) && \ + defined(__cplusplus) && \ + (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) __has_cpp_attribute(attribute) +#else + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) (0) +#endif + +#if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS) + #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS +#endif +#if !defined(__cplusplus) || !defined(__has_cpp_attribute) + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0) +#elif \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_IAR_VERSION) && \ + (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) && \ + (!defined(JSON_HEDLEY_MSVC_VERSION) || JSON_HEDLEY_MSVC_VERSION_CHECK(19,20,0)) + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(ns::attribute) +#else + #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(ns,attribute) (0) +#endif + +#if defined(JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE) + #undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE +#endif +#if defined(__has_cpp_attribute) && defined(__cplusplus) + #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute) +#else + #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE) + #undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE +#endif +#if defined(__has_cpp_attribute) && defined(__cplusplus) + #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute) +#else + #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_HAS_BUILTIN) + #undef JSON_HEDLEY_HAS_BUILTIN +#endif +#if defined(__has_builtin) + #define JSON_HEDLEY_HAS_BUILTIN(builtin) __has_builtin(builtin) +#else + #define JSON_HEDLEY_HAS_BUILTIN(builtin) (0) +#endif + +#if defined(JSON_HEDLEY_GNUC_HAS_BUILTIN) + #undef JSON_HEDLEY_GNUC_HAS_BUILTIN +#endif +#if defined(__has_builtin) + #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin) +#else + #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_GCC_HAS_BUILTIN) + #undef JSON_HEDLEY_GCC_HAS_BUILTIN +#endif +#if defined(__has_builtin) + #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin) +#else + #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_HAS_FEATURE) + #undef JSON_HEDLEY_HAS_FEATURE +#endif +#if defined(__has_feature) + #define JSON_HEDLEY_HAS_FEATURE(feature) __has_feature(feature) +#else + #define JSON_HEDLEY_HAS_FEATURE(feature) (0) +#endif + +#if defined(JSON_HEDLEY_GNUC_HAS_FEATURE) + #undef JSON_HEDLEY_GNUC_HAS_FEATURE +#endif +#if defined(__has_feature) + #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature) +#else + #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_GCC_HAS_FEATURE) + #undef JSON_HEDLEY_GCC_HAS_FEATURE +#endif +#if defined(__has_feature) + #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature) +#else + #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_HAS_EXTENSION) + #undef JSON_HEDLEY_HAS_EXTENSION +#endif +#if defined(__has_extension) + #define JSON_HEDLEY_HAS_EXTENSION(extension) __has_extension(extension) +#else + #define JSON_HEDLEY_HAS_EXTENSION(extension) (0) +#endif + +#if defined(JSON_HEDLEY_GNUC_HAS_EXTENSION) + #undef JSON_HEDLEY_GNUC_HAS_EXTENSION +#endif +#if defined(__has_extension) + #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension) +#else + #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_GCC_HAS_EXTENSION) + #undef JSON_HEDLEY_GCC_HAS_EXTENSION +#endif +#if defined(__has_extension) + #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension) +#else + #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE) + #undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE +#endif +#if defined(__has_declspec_attribute) + #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) __has_declspec_attribute(attribute) +#else + #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) (0) +#endif + +#if defined(JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE) + #undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE +#endif +#if defined(__has_declspec_attribute) + #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute) +#else + #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE) + #undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE +#endif +#if defined(__has_declspec_attribute) + #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute) +#else + #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_HAS_WARNING) + #undef JSON_HEDLEY_HAS_WARNING +#endif +#if defined(__has_warning) + #define JSON_HEDLEY_HAS_WARNING(warning) __has_warning(warning) +#else + #define JSON_HEDLEY_HAS_WARNING(warning) (0) +#endif + +#if defined(JSON_HEDLEY_GNUC_HAS_WARNING) + #undef JSON_HEDLEY_GNUC_HAS_WARNING +#endif +#if defined(__has_warning) + #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning) +#else + #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_GCC_HAS_WARNING) + #undef JSON_HEDLEY_GCC_HAS_WARNING +#endif +#if defined(__has_warning) + #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning) +#else + #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif + +#if \ + (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ + defined(__clang__) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,0,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,17) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(8,0,0) || \ + (JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) && defined(__C99_PRAGMA_OPERATOR)) + #define JSON_HEDLEY_PRAGMA(value) _Pragma(#value) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) + #define JSON_HEDLEY_PRAGMA(value) __pragma(value) +#else + #define JSON_HEDLEY_PRAGMA(value) +#endif + +#if defined(JSON_HEDLEY_DIAGNOSTIC_PUSH) + #undef JSON_HEDLEY_DIAGNOSTIC_PUSH +#endif +#if defined(JSON_HEDLEY_DIAGNOSTIC_POP) + #undef JSON_HEDLEY_DIAGNOSTIC_POP +#endif +#if defined(__clang__) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("clang diagnostic pop") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop") +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH __pragma(warning(push)) + #define JSON_HEDLEY_DIAGNOSTIC_POP __pragma(warning(pop)) +#elif JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("push") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("pop") +#elif \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,4,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("diag_push") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("diag_pop") +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0) + #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)") + #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)") +#else + #define JSON_HEDLEY_DIAGNOSTIC_PUSH + #define JSON_HEDLEY_DIAGNOSTIC_POP +#endif + +/* JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ is for + HEDLEY INTERNAL USE ONLY. API subject to change without notice. */ +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ +#endif +#if defined(__cplusplus) +# if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat") +# if JSON_HEDLEY_HAS_WARNING("-Wc++17-extensions") +# if JSON_HEDLEY_HAS_WARNING("-Wc++1z-extensions") +# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ + _Pragma("clang diagnostic ignored \"-Wc++1z-extensions\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +# else +# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + _Pragma("clang diagnostic ignored \"-Wc++17-extensions\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +# endif +# else +# define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(xpr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wc++98-compat\"") \ + xpr \ + JSON_HEDLEY_DIAGNOSTIC_POP +# endif +# endif +#endif +#if !defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(x) x +#endif + +#if defined(JSON_HEDLEY_CONST_CAST) + #undef JSON_HEDLEY_CONST_CAST +#endif +#if defined(__cplusplus) +# define JSON_HEDLEY_CONST_CAST(T, expr) (const_cast(expr)) +#elif \ + JSON_HEDLEY_HAS_WARNING("-Wcast-qual") || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) +# define JSON_HEDLEY_CONST_CAST(T, expr) (__extension__ ({ \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL \ + ((T) (expr)); \ + JSON_HEDLEY_DIAGNOSTIC_POP \ + })) +#else +# define JSON_HEDLEY_CONST_CAST(T, expr) ((T) (expr)) +#endif + +#if defined(JSON_HEDLEY_REINTERPRET_CAST) + #undef JSON_HEDLEY_REINTERPRET_CAST +#endif +#if defined(__cplusplus) + #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) (reinterpret_cast(expr)) +#else + #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) ((T) (expr)) +#endif + +#if defined(JSON_HEDLEY_STATIC_CAST) + #undef JSON_HEDLEY_STATIC_CAST +#endif +#if defined(__cplusplus) + #define JSON_HEDLEY_STATIC_CAST(T, expr) (static_cast(expr)) +#else + #define JSON_HEDLEY_STATIC_CAST(T, expr) ((T) (expr)) +#endif + +#if defined(JSON_HEDLEY_CPP_CAST) + #undef JSON_HEDLEY_CPP_CAST +#endif +#if defined(__cplusplus) +# if JSON_HEDLEY_HAS_WARNING("-Wold-style-cast") +# define JSON_HEDLEY_CPP_CAST(T, expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wold-style-cast\"") \ + ((T) (expr)) \ + JSON_HEDLEY_DIAGNOSTIC_POP +# elif JSON_HEDLEY_IAR_VERSION_CHECK(8,3,0) +# define JSON_HEDLEY_CPP_CAST(T, expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("diag_suppress=Pe137") \ + JSON_HEDLEY_DIAGNOSTIC_POP +# else +# define JSON_HEDLEY_CPP_CAST(T, expr) ((T) (expr)) +# endif +#else +# define JSON_HEDLEY_CPP_CAST(T, expr) (expr) +#endif + +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wdeprecated-declarations") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warning(disable:1478 1786)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:1478 1786)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1216,1444,1445") +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:4996)) +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444") +#elif \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1291,1718") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && !defined(__cplusplus) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,E_DEPRECATED_ATT,E_DEPRECATED_ATT_MESS)") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && defined(__cplusplus) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,symdeprecated,symdeprecated2)") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress=Pe1444,Pe1215") +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warn(disable:2241)") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED +#endif + +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("clang diagnostic ignored \"-Wunknown-pragmas\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("warning(disable:161)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:161)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 1675") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("GCC diagnostic ignored \"-Wunknown-pragmas\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:4068)) +#elif \ + JSON_HEDLEY_TI_VERSION_CHECK(16,9,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress=Pe161") +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 161") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS +#endif + +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunknown-attributes") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("clang diagnostic ignored \"-Wunknown-attributes\"") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("warning(disable:1292)") +#elif JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:1292)) +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES __pragma(warning(disable:5030)) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(20,7,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097,1098") +#elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("error_messages(off,attrskipunsup)") +#elif \ + JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1173") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress=Pe1097") +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES _Pragma("diag_suppress 1097") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES +#endif + +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wcast-qual") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("clang diagnostic ignored \"-Wcast-qual\"") +#elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("warning(disable:2203 2331)") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("GCC diagnostic ignored \"-Wcast-qual\"") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL +#endif + +#if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION) + #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunused-function") + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("clang diagnostic ignored \"-Wunused-function\"") +#elif JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("GCC diagnostic ignored \"-Wunused-function\"") +#elif JSON_HEDLEY_MSVC_VERSION_CHECK(1,0,0) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION __pragma(warning(disable:4505)) +#elif JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION _Pragma("diag_suppress 3142") +#else + #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION +#endif + +#if defined(JSON_HEDLEY_DEPRECATED) + #undef JSON_HEDLEY_DEPRECATED +#endif +#if defined(JSON_HEDLEY_DEPRECATED_FOR) + #undef JSON_HEDLEY_DEPRECATED_FOR +#endif +#if \ + JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated("Since " # since)) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated("Since " #since "; use " #replacement)) +#elif \ + (JSON_HEDLEY_HAS_EXTENSION(attribute_deprecated_with_message) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(18,1,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(18,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,3,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,3,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__("Since " #since))) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__("Since " #since "; use " #replacement))) +#elif defined(__cplusplus) && (__cplusplus >= 201402L) + #define JSON_HEDLEY_DEPRECATED(since) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since)]]) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[deprecated("Since " #since "; use " #replacement)]]) +#elif \ + JSON_HEDLEY_HAS_ATTRIBUTE(deprecated) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) + #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__)) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__)) +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ + JSON_HEDLEY_PELLES_VERSION_CHECK(6,50,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated) +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_DEPRECATED(since) _Pragma("deprecated") + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) _Pragma("deprecated") +#else + #define JSON_HEDLEY_DEPRECATED(since) + #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) +#endif + +#if defined(JSON_HEDLEY_UNAVAILABLE) + #undef JSON_HEDLEY_UNAVAILABLE +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(warning) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_UNAVAILABLE(available_since) __attribute__((__warning__("Not available until " #available_since))) +#else + #define JSON_HEDLEY_UNAVAILABLE(available_since) +#endif + +#if defined(JSON_HEDLEY_WARN_UNUSED_RESULT) + #undef JSON_HEDLEY_WARN_UNUSED_RESULT +#endif +#if defined(JSON_HEDLEY_WARN_UNUSED_RESULT_MSG) + #undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(warn_unused_result) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__)) + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) __attribute__((__warn_unused_result__)) +#elif (JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) >= 201907L) + #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard(msg)]]) +#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(nodiscard) + #define JSON_HEDLEY_WARN_UNUSED_RESULT JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[nodiscard]]) +#elif defined(_Check_return_) /* SAL */ + #define JSON_HEDLEY_WARN_UNUSED_RESULT _Check_return_ + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) _Check_return_ +#else + #define JSON_HEDLEY_WARN_UNUSED_RESULT + #define JSON_HEDLEY_WARN_UNUSED_RESULT_MSG(msg) +#endif + +#if defined(JSON_HEDLEY_SENTINEL) + #undef JSON_HEDLEY_SENTINEL +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(sentinel) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_SENTINEL(position) __attribute__((__sentinel__(position))) +#else + #define JSON_HEDLEY_SENTINEL(position) +#endif + +#if defined(JSON_HEDLEY_NO_RETURN) + #undef JSON_HEDLEY_NO_RETURN +#endif +#if JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_NO_RETURN __noreturn +#elif \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) +#elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L + #define JSON_HEDLEY_NO_RETURN _Noreturn +#elif defined(__cplusplus) && (__cplusplus >= 201103L) + #define JSON_HEDLEY_NO_RETURN JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[noreturn]]) +#elif \ + JSON_HEDLEY_HAS_ATTRIBUTE(noreturn) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,2,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) + #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) + #define JSON_HEDLEY_NO_RETURN _Pragma("does_not_return") +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_NO_RETURN __declspec(noreturn) +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus) + #define JSON_HEDLEY_NO_RETURN _Pragma("FUNC_NEVER_RETURNS;") +#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0) + #define JSON_HEDLEY_NO_RETURN __attribute((noreturn)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0) + #define JSON_HEDLEY_NO_RETURN __declspec(noreturn) +#else + #define JSON_HEDLEY_NO_RETURN +#endif + +#if defined(JSON_HEDLEY_NO_ESCAPE) + #undef JSON_HEDLEY_NO_ESCAPE +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(noescape) + #define JSON_HEDLEY_NO_ESCAPE __attribute__((__noescape__)) +#else + #define JSON_HEDLEY_NO_ESCAPE +#endif + +#if defined(JSON_HEDLEY_UNREACHABLE) + #undef JSON_HEDLEY_UNREACHABLE +#endif +#if defined(JSON_HEDLEY_UNREACHABLE_RETURN) + #undef JSON_HEDLEY_UNREACHABLE_RETURN +#endif +#if defined(JSON_HEDLEY_ASSUME) + #undef JSON_HEDLEY_ASSUME +#endif +#if \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_ASSUME(expr) __assume(expr) +#elif JSON_HEDLEY_HAS_BUILTIN(__builtin_assume) + #define JSON_HEDLEY_ASSUME(expr) __builtin_assume(expr) +#elif \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) + #if defined(__cplusplus) + #define JSON_HEDLEY_ASSUME(expr) std::_nassert(expr) + #else + #define JSON_HEDLEY_ASSUME(expr) _nassert(expr) + #endif +#endif +#if \ + (JSON_HEDLEY_HAS_BUILTIN(__builtin_unreachable) && (!defined(JSON_HEDLEY_ARM_VERSION))) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18,10,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13,1,5) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(10,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_UNREACHABLE() __builtin_unreachable() +#elif defined(JSON_HEDLEY_ASSUME) + #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) +#endif +#if !defined(JSON_HEDLEY_ASSUME) + #if defined(JSON_HEDLEY_UNREACHABLE) + #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, ((expr) ? 1 : (JSON_HEDLEY_UNREACHABLE(), 1))) + #else + #define JSON_HEDLEY_ASSUME(expr) JSON_HEDLEY_STATIC_CAST(void, expr) + #endif +#endif +#if defined(JSON_HEDLEY_UNREACHABLE) + #if \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) + #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (JSON_HEDLEY_STATIC_CAST(void, JSON_HEDLEY_ASSUME(0)), (value)) + #else + #define JSON_HEDLEY_UNREACHABLE_RETURN(value) JSON_HEDLEY_UNREACHABLE() + #endif +#else + #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return (value) +#endif +#if !defined(JSON_HEDLEY_UNREACHABLE) + #define JSON_HEDLEY_UNREACHABLE() JSON_HEDLEY_ASSUME(0) +#endif + +JSON_HEDLEY_DIAGNOSTIC_PUSH +#if JSON_HEDLEY_HAS_WARNING("-Wpedantic") + #pragma clang diagnostic ignored "-Wpedantic" +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wc++98-compat-pedantic") && defined(__cplusplus) + #pragma clang diagnostic ignored "-Wc++98-compat-pedantic" +#endif +#if JSON_HEDLEY_GCC_HAS_WARNING("-Wvariadic-macros",4,0,0) + #if defined(__clang__) + #pragma clang diagnostic ignored "-Wvariadic-macros" + #elif defined(JSON_HEDLEY_GCC_VERSION) + #pragma GCC diagnostic ignored "-Wvariadic-macros" + #endif +#endif +#if defined(JSON_HEDLEY_NON_NULL) + #undef JSON_HEDLEY_NON_NULL +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(nonnull) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) + #define JSON_HEDLEY_NON_NULL(...) __attribute__((__nonnull__(__VA_ARGS__))) +#else + #define JSON_HEDLEY_NON_NULL(...) +#endif +JSON_HEDLEY_DIAGNOSTIC_POP + +#if defined(JSON_HEDLEY_PRINTF_FORMAT) + #undef JSON_HEDLEY_PRINTF_FORMAT +#endif +#if defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && !defined(__USE_MINGW_ANSI_STDIO) + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(ms_printf, string_idx, first_to_check))) +#elif defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && defined(__USE_MINGW_ANSI_STDIO) + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(gnu_printf, string_idx, first_to_check))) +#elif \ + JSON_HEDLEY_HAS_ATTRIBUTE(format) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(__printf__, string_idx, first_to_check))) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(6,0,0) + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __declspec(vaformat(printf,string_idx,first_to_check)) +#else + #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) +#endif + +#if defined(JSON_HEDLEY_CONSTEXPR) + #undef JSON_HEDLEY_CONSTEXPR +#endif +#if defined(__cplusplus) + #if __cplusplus >= 201103L + #define JSON_HEDLEY_CONSTEXPR JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(constexpr) + #endif +#endif +#if !defined(JSON_HEDLEY_CONSTEXPR) + #define JSON_HEDLEY_CONSTEXPR +#endif + +#if defined(JSON_HEDLEY_PREDICT) + #undef JSON_HEDLEY_PREDICT +#endif +#if defined(JSON_HEDLEY_LIKELY) + #undef JSON_HEDLEY_LIKELY +#endif +#if defined(JSON_HEDLEY_UNLIKELY) + #undef JSON_HEDLEY_UNLIKELY +#endif +#if defined(JSON_HEDLEY_UNPREDICTABLE) + #undef JSON_HEDLEY_UNPREDICTABLE +#endif +#if JSON_HEDLEY_HAS_BUILTIN(__builtin_unpredictable) + #define JSON_HEDLEY_UNPREDICTABLE(expr) __builtin_unpredictable((expr)) +#endif +#if \ + (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect_with_probability) && !defined(JSON_HEDLEY_PGI_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(9,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) +# define JSON_HEDLEY_PREDICT(expr, value, probability) __builtin_expect_with_probability( (expr), (value), (probability)) +# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) __builtin_expect_with_probability(!!(expr), 1 , (probability)) +# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) __builtin_expect_with_probability(!!(expr), 0 , (probability)) +# define JSON_HEDLEY_LIKELY(expr) __builtin_expect (!!(expr), 1 ) +# define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect (!!(expr), 0 ) +#elif \ + (JSON_HEDLEY_HAS_BUILTIN(__builtin_expect) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,7,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,27) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) +# define JSON_HEDLEY_PREDICT(expr, expected, probability) \ + (((probability) >= 0.9) ? __builtin_expect((expr), (expected)) : (JSON_HEDLEY_STATIC_CAST(void, expected), (expr))) +# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) \ + (__extension__ ({ \ + double hedley_probability_ = (probability); \ + ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 1) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 0) : !!(expr))); \ + })) +# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) \ + (__extension__ ({ \ + double hedley_probability_ = (probability); \ + ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 0) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 1) : !!(expr))); \ + })) +# define JSON_HEDLEY_LIKELY(expr) __builtin_expect(!!(expr), 1) +# define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0) +#else +# define JSON_HEDLEY_PREDICT(expr, expected, probability) (JSON_HEDLEY_STATIC_CAST(void, expected), (expr)) +# define JSON_HEDLEY_PREDICT_TRUE(expr, probability) (!!(expr)) +# define JSON_HEDLEY_PREDICT_FALSE(expr, probability) (!!(expr)) +# define JSON_HEDLEY_LIKELY(expr) (!!(expr)) +# define JSON_HEDLEY_UNLIKELY(expr) (!!(expr)) +#endif +#if !defined(JSON_HEDLEY_UNPREDICTABLE) + #define JSON_HEDLEY_UNPREDICTABLE(expr) JSON_HEDLEY_PREDICT(expr, 1, 0.5) +#endif + +#if defined(JSON_HEDLEY_MALLOC) + #undef JSON_HEDLEY_MALLOC +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(malloc) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_MALLOC __attribute__((__malloc__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) + #define JSON_HEDLEY_MALLOC _Pragma("returns_new_memory") +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_MALLOC __declspec(restrict) +#else + #define JSON_HEDLEY_MALLOC +#endif + +#if defined(JSON_HEDLEY_PURE) + #undef JSON_HEDLEY_PURE +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(pure) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(2,96,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) +# define JSON_HEDLEY_PURE __attribute__((__pure__)) +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) +# define JSON_HEDLEY_PURE _Pragma("does_not_write_global_data") +#elif defined(__cplusplus) && \ + ( \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(2,0,1) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(4,0,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) \ + ) +# define JSON_HEDLEY_PURE _Pragma("FUNC_IS_PURE;") +#else +# define JSON_HEDLEY_PURE +#endif + +#if defined(JSON_HEDLEY_CONST) + #undef JSON_HEDLEY_CONST +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(const) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(2,5,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_CONST __attribute__((__const__)) +#elif \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) + #define JSON_HEDLEY_CONST _Pragma("no_side_effect") +#else + #define JSON_HEDLEY_CONST JSON_HEDLEY_PURE +#endif + +#if defined(JSON_HEDLEY_RESTRICT) + #undef JSON_HEDLEY_RESTRICT +#endif +#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && !defined(__cplusplus) + #define JSON_HEDLEY_RESTRICT restrict +#elif \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,4) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus)) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \ + defined(__clang__) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_RESTRICT __restrict +#elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,3,0) && !defined(__cplusplus) + #define JSON_HEDLEY_RESTRICT _Restrict +#else + #define JSON_HEDLEY_RESTRICT +#endif + +#if defined(JSON_HEDLEY_INLINE) + #undef JSON_HEDLEY_INLINE +#endif +#if \ + (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \ + (defined(__cplusplus) && (__cplusplus >= 199711L)) + #define JSON_HEDLEY_INLINE inline +#elif \ + defined(JSON_HEDLEY_GCC_VERSION) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(6,2,0) + #define JSON_HEDLEY_INLINE __inline__ +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,1,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(3,1,0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,2,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(8,0,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_INLINE __inline +#else + #define JSON_HEDLEY_INLINE +#endif + +#if defined(JSON_HEDLEY_ALWAYS_INLINE) + #undef JSON_HEDLEY_ALWAYS_INLINE +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(always_inline) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) +# define JSON_HEDLEY_ALWAYS_INLINE __attribute__((__always_inline__)) JSON_HEDLEY_INLINE +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) +# define JSON_HEDLEY_ALWAYS_INLINE __forceinline +#elif defined(__cplusplus) && \ + ( \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) \ + ) +# define JSON_HEDLEY_ALWAYS_INLINE _Pragma("FUNC_ALWAYS_INLINE;") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) +# define JSON_HEDLEY_ALWAYS_INLINE _Pragma("inline=forced") +#else +# define JSON_HEDLEY_ALWAYS_INLINE JSON_HEDLEY_INLINE +#endif + +#if defined(JSON_HEDLEY_NEVER_INLINE) + #undef JSON_HEDLEY_NEVER_INLINE +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(noinline) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \ + JSON_HEDLEY_TI_VERSION_CHECK(15,12,0) || \ + (JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(4,8,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_ARMCL_VERSION_CHECK(5,2,0) || \ + (JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL2000_VERSION_CHECK(6,4,0) || \ + (JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,0,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(4,3,0) || \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) || \ + JSON_HEDLEY_TI_CL7X_VERSION_CHECK(1,2,0) || \ + JSON_HEDLEY_TI_CLPRU_VERSION_CHECK(2,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) || \ + JSON_HEDLEY_IAR_VERSION_CHECK(8,10,0) + #define JSON_HEDLEY_NEVER_INLINE __attribute__((__noinline__)) +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) +#elif JSON_HEDLEY_PGI_VERSION_CHECK(10,2,0) + #define JSON_HEDLEY_NEVER_INLINE _Pragma("noinline") +#elif JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,0,0) && defined(__cplusplus) + #define JSON_HEDLEY_NEVER_INLINE _Pragma("FUNC_CANNOT_INLINE;") +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) + #define JSON_HEDLEY_NEVER_INLINE _Pragma("inline=never") +#elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0) + #define JSON_HEDLEY_NEVER_INLINE __attribute((noinline)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0) + #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline) +#else + #define JSON_HEDLEY_NEVER_INLINE +#endif + +#if defined(JSON_HEDLEY_PRIVATE) + #undef JSON_HEDLEY_PRIVATE +#endif +#if defined(JSON_HEDLEY_PUBLIC) + #undef JSON_HEDLEY_PUBLIC +#endif +#if defined(JSON_HEDLEY_IMPORT) + #undef JSON_HEDLEY_IMPORT +#endif +#if defined(_WIN32) || defined(__CYGWIN__) +# define JSON_HEDLEY_PRIVATE +# define JSON_HEDLEY_PUBLIC __declspec(dllexport) +# define JSON_HEDLEY_IMPORT __declspec(dllimport) +#else +# if \ + JSON_HEDLEY_HAS_ATTRIBUTE(visibility) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ + JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ + ( \ + defined(__TI_EABI__) && \ + ( \ + (JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,2,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(7,5,0) \ + ) \ + ) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) +# define JSON_HEDLEY_PRIVATE __attribute__((__visibility__("hidden"))) +# define JSON_HEDLEY_PUBLIC __attribute__((__visibility__("default"))) +# else +# define JSON_HEDLEY_PRIVATE +# define JSON_HEDLEY_PUBLIC +# endif +# define JSON_HEDLEY_IMPORT extern +#endif + +#if defined(JSON_HEDLEY_NO_THROW) + #undef JSON_HEDLEY_NO_THROW +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(nothrow) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_NO_THROW __attribute__((__nothrow__)) +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(13,1,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) + #define JSON_HEDLEY_NO_THROW __declspec(nothrow) +#else + #define JSON_HEDLEY_NO_THROW +#endif + +#if defined(JSON_HEDLEY_FALL_THROUGH) + #undef JSON_HEDLEY_FALL_THROUGH +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(fallthrough) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(7,0,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_FALL_THROUGH __attribute__((__fallthrough__)) +#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS(clang,fallthrough) + #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[clang::fallthrough]]) +#elif JSON_HEDLEY_HAS_CPP_ATTRIBUTE(fallthrough) + #define JSON_HEDLEY_FALL_THROUGH JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_([[fallthrough]]) +#elif defined(__fallthrough) /* SAL */ + #define JSON_HEDLEY_FALL_THROUGH __fallthrough +#else + #define JSON_HEDLEY_FALL_THROUGH +#endif + +#if defined(JSON_HEDLEY_RETURNS_NON_NULL) + #undef JSON_HEDLEY_RETURNS_NON_NULL +#endif +#if \ + JSON_HEDLEY_HAS_ATTRIBUTE(returns_nonnull) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_RETURNS_NON_NULL __attribute__((__returns_nonnull__)) +#elif defined(_Ret_notnull_) /* SAL */ + #define JSON_HEDLEY_RETURNS_NON_NULL _Ret_notnull_ +#else + #define JSON_HEDLEY_RETURNS_NON_NULL +#endif + +#if defined(JSON_HEDLEY_ARRAY_PARAM) + #undef JSON_HEDLEY_ARRAY_PARAM +#endif +#if \ + defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \ + !defined(__STDC_NO_VLA__) && \ + !defined(__cplusplus) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_TINYC_VERSION) + #define JSON_HEDLEY_ARRAY_PARAM(name) (name) +#else + #define JSON_HEDLEY_ARRAY_PARAM(name) +#endif + +#if defined(JSON_HEDLEY_IS_CONSTANT) + #undef JSON_HEDLEY_IS_CONSTANT +#endif +#if defined(JSON_HEDLEY_REQUIRE_CONSTEXPR) + #undef JSON_HEDLEY_REQUIRE_CONSTEXPR +#endif +/* JSON_HEDLEY_IS_CONSTEXPR_ is for + HEDLEY INTERNAL USE ONLY. API subject to change without notice. */ +#if defined(JSON_HEDLEY_IS_CONSTEXPR_) + #undef JSON_HEDLEY_IS_CONSTEXPR_ +#endif +#if \ + JSON_HEDLEY_HAS_BUILTIN(__builtin_constant_p) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,19) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ + JSON_HEDLEY_TI_CL6X_VERSION_CHECK(6,1,0) || \ + (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) && !defined(__cplusplus)) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_MCST_LCC_VERSION_CHECK(1,25,10) + #define JSON_HEDLEY_IS_CONSTANT(expr) __builtin_constant_p(expr) +#endif +#if !defined(__cplusplus) +# if \ + JSON_HEDLEY_HAS_BUILTIN(__builtin_types_compatible_p) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \ + JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \ + JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,24) +#if defined(__INTPTR_TYPE__) + #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0)), int*) +#else + #include + #define JSON_HEDLEY_IS_CONSTEXPR_(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((intptr_t) ((expr) * 0)) : (int*) 0)), int*) +#endif +# elif \ + ( \ + defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && \ + !defined(JSON_HEDLEY_SUNPRO_VERSION) && \ + !defined(JSON_HEDLEY_PGI_VERSION) && \ + !defined(JSON_HEDLEY_IAR_VERSION)) || \ + (JSON_HEDLEY_HAS_EXTENSION(c_generic_selections) && !defined(JSON_HEDLEY_IAR_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) || \ + JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \ + JSON_HEDLEY_ARM_VERSION_CHECK(5,3,0) +#if defined(__INTPTR_TYPE__) + #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0), int*: 1, void*: 0) +#else + #include + #define JSON_HEDLEY_IS_CONSTEXPR_(expr) _Generic((1 ? (void*) ((intptr_t) * 0) : (int*) 0), int*: 1, void*: 0) +#endif +# elif \ + defined(JSON_HEDLEY_GCC_VERSION) || \ + defined(JSON_HEDLEY_INTEL_VERSION) || \ + defined(JSON_HEDLEY_TINYC_VERSION) || \ + defined(JSON_HEDLEY_TI_ARMCL_VERSION) || \ + JSON_HEDLEY_TI_CL430_VERSION_CHECK(18,12,0) || \ + defined(JSON_HEDLEY_TI_CL2000_VERSION) || \ + defined(JSON_HEDLEY_TI_CL6X_VERSION) || \ + defined(JSON_HEDLEY_TI_CL7X_VERSION) || \ + defined(JSON_HEDLEY_TI_CLPRU_VERSION) || \ + defined(__clang__) +# define JSON_HEDLEY_IS_CONSTEXPR_(expr) ( \ + sizeof(void) != \ + sizeof(*( \ + 1 ? \ + ((void*) ((expr) * 0L) ) : \ +((struct { char v[sizeof(void) * 2]; } *) 1) \ + ) \ + ) \ + ) +# endif +#endif +#if defined(JSON_HEDLEY_IS_CONSTEXPR_) + #if !defined(JSON_HEDLEY_IS_CONSTANT) + #define JSON_HEDLEY_IS_CONSTANT(expr) JSON_HEDLEY_IS_CONSTEXPR_(expr) + #endif + #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (JSON_HEDLEY_IS_CONSTEXPR_(expr) ? (expr) : (-1)) +#else + #if !defined(JSON_HEDLEY_IS_CONSTANT) + #define JSON_HEDLEY_IS_CONSTANT(expr) (0) + #endif + #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (expr) +#endif + +#if defined(JSON_HEDLEY_BEGIN_C_DECLS) + #undef JSON_HEDLEY_BEGIN_C_DECLS +#endif +#if defined(JSON_HEDLEY_END_C_DECLS) + #undef JSON_HEDLEY_END_C_DECLS +#endif +#if defined(JSON_HEDLEY_C_DECL) + #undef JSON_HEDLEY_C_DECL +#endif +#if defined(__cplusplus) + #define JSON_HEDLEY_BEGIN_C_DECLS extern "C" { + #define JSON_HEDLEY_END_C_DECLS } + #define JSON_HEDLEY_C_DECL extern "C" +#else + #define JSON_HEDLEY_BEGIN_C_DECLS + #define JSON_HEDLEY_END_C_DECLS + #define JSON_HEDLEY_C_DECL +#endif + +#if defined(JSON_HEDLEY_STATIC_ASSERT) + #undef JSON_HEDLEY_STATIC_ASSERT +#endif +#if \ + !defined(__cplusplus) && ( \ + (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)) || \ + (JSON_HEDLEY_HAS_FEATURE(c_static_assert) && !defined(JSON_HEDLEY_INTEL_CL_VERSION)) || \ + JSON_HEDLEY_GCC_VERSION_CHECK(6,0,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \ + defined(_Static_assert) \ + ) +# define JSON_HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message) +#elif \ + (defined(__cplusplus) && (__cplusplus >= 201103L)) || \ + JSON_HEDLEY_MSVC_VERSION_CHECK(16,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) +# define JSON_HEDLEY_STATIC_ASSERT(expr, message) JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(static_assert(expr, message)) +#else +# define JSON_HEDLEY_STATIC_ASSERT(expr, message) +#endif + +#if defined(JSON_HEDLEY_NULL) + #undef JSON_HEDLEY_NULL +#endif +#if defined(__cplusplus) + #if __cplusplus >= 201103L + #define JSON_HEDLEY_NULL JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_(nullptr) + #elif defined(NULL) + #define JSON_HEDLEY_NULL NULL + #else + #define JSON_HEDLEY_NULL JSON_HEDLEY_STATIC_CAST(void*, 0) + #endif +#elif defined(NULL) + #define JSON_HEDLEY_NULL NULL +#else + #define JSON_HEDLEY_NULL ((void*) 0) +#endif + +#if defined(JSON_HEDLEY_MESSAGE) + #undef JSON_HEDLEY_MESSAGE +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") +# define JSON_HEDLEY_MESSAGE(msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \ + JSON_HEDLEY_PRAGMA(message msg) \ + JSON_HEDLEY_DIAGNOSTIC_POP +#elif \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) +# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message msg) +#elif JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) +# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(_CRI message msg) +#elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) +# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,0,0) +# define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#else +# define JSON_HEDLEY_MESSAGE(msg) +#endif + +#if defined(JSON_HEDLEY_WARNING) + #undef JSON_HEDLEY_WARNING +#endif +#if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas") +# define JSON_HEDLEY_WARNING(msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \ + JSON_HEDLEY_PRAGMA(clang warning msg) \ + JSON_HEDLEY_DIAGNOSTIC_POP +#elif \ + JSON_HEDLEY_GCC_VERSION_CHECK(4,8,0) || \ + JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \ + JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) +# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(GCC warning msg) +#elif \ + JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) +# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(message(msg)) +#else +# define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_MESSAGE(msg) +#endif + +#if defined(JSON_HEDLEY_REQUIRE) + #undef JSON_HEDLEY_REQUIRE +#endif +#if defined(JSON_HEDLEY_REQUIRE_MSG) + #undef JSON_HEDLEY_REQUIRE_MSG +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(diagnose_if) +# if JSON_HEDLEY_HAS_WARNING("-Wgcc-compat") +# define JSON_HEDLEY_REQUIRE(expr) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ + __attribute__((diagnose_if(!(expr), #expr, "error"))) \ + JSON_HEDLEY_DIAGNOSTIC_POP +# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \ + __attribute__((diagnose_if(!(expr), msg, "error"))) \ + JSON_HEDLEY_DIAGNOSTIC_POP +# else +# define JSON_HEDLEY_REQUIRE(expr) __attribute__((diagnose_if(!(expr), #expr, "error"))) +# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) __attribute__((diagnose_if(!(expr), msg, "error"))) +# endif +#else +# define JSON_HEDLEY_REQUIRE(expr) +# define JSON_HEDLEY_REQUIRE_MSG(expr,msg) +#endif + +#if defined(JSON_HEDLEY_FLAGS) + #undef JSON_HEDLEY_FLAGS +#endif +#if JSON_HEDLEY_HAS_ATTRIBUTE(flag_enum) && (!defined(__cplusplus) || JSON_HEDLEY_HAS_WARNING("-Wbitfield-enum-conversion")) + #define JSON_HEDLEY_FLAGS __attribute__((__flag_enum__)) +#else + #define JSON_HEDLEY_FLAGS +#endif + +#if defined(JSON_HEDLEY_FLAGS_CAST) + #undef JSON_HEDLEY_FLAGS_CAST +#endif +#if JSON_HEDLEY_INTEL_VERSION_CHECK(19,0,0) +# define JSON_HEDLEY_FLAGS_CAST(T, expr) (__extension__ ({ \ + JSON_HEDLEY_DIAGNOSTIC_PUSH \ + _Pragma("warning(disable:188)") \ + ((T) (expr)); \ + JSON_HEDLEY_DIAGNOSTIC_POP \ + })) +#else +# define JSON_HEDLEY_FLAGS_CAST(T, expr) JSON_HEDLEY_STATIC_CAST(T, expr) +#endif + +#if defined(JSON_HEDLEY_EMPTY_BASES) + #undef JSON_HEDLEY_EMPTY_BASES +#endif +#if \ + (JSON_HEDLEY_MSVC_VERSION_CHECK(19,0,23918) && !JSON_HEDLEY_MSVC_VERSION_CHECK(20,0,0)) || \ + JSON_HEDLEY_INTEL_CL_VERSION_CHECK(2021,1,0) + #define JSON_HEDLEY_EMPTY_BASES __declspec(empty_bases) +#else + #define JSON_HEDLEY_EMPTY_BASES +#endif + +/* Remaining macros are deprecated. */ + +#if defined(JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK) + #undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK +#endif +#if defined(__clang__) + #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) (0) +#else + #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) +#endif + +#if defined(JSON_HEDLEY_CLANG_HAS_ATTRIBUTE) + #undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE +#endif +#define JSON_HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_ATTRIBUTE(attribute) + +#if defined(JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE) + #undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE +#endif +#define JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) + +#if defined(JSON_HEDLEY_CLANG_HAS_BUILTIN) + #undef JSON_HEDLEY_CLANG_HAS_BUILTIN +#endif +#define JSON_HEDLEY_CLANG_HAS_BUILTIN(builtin) JSON_HEDLEY_HAS_BUILTIN(builtin) + +#if defined(JSON_HEDLEY_CLANG_HAS_FEATURE) + #undef JSON_HEDLEY_CLANG_HAS_FEATURE +#endif +#define JSON_HEDLEY_CLANG_HAS_FEATURE(feature) JSON_HEDLEY_HAS_FEATURE(feature) + +#if defined(JSON_HEDLEY_CLANG_HAS_EXTENSION) + #undef JSON_HEDLEY_CLANG_HAS_EXTENSION +#endif +#define JSON_HEDLEY_CLANG_HAS_EXTENSION(extension) JSON_HEDLEY_HAS_EXTENSION(extension) + +#if defined(JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE) + #undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE +#endif +#define JSON_HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) + +#if defined(JSON_HEDLEY_CLANG_HAS_WARNING) + #undef JSON_HEDLEY_CLANG_HAS_WARNING +#endif +#define JSON_HEDLEY_CLANG_HAS_WARNING(warning) JSON_HEDLEY_HAS_WARNING(warning) + +#endif /* !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < X) */ + + +// This file contains all internal macro definitions +// You MUST include macro_unscope.hpp at the end of json.hpp to undef all of them + +// exclude unsupported compilers +#if !defined(JSON_SKIP_UNSUPPORTED_COMPILER_CHECK) + #if defined(__clang__) + #if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400 + #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers" + #endif + #elif defined(__GNUC__) && !(defined(__ICC) || defined(__INTEL_COMPILER)) + #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40800 + #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers" + #endif + #endif +#endif + +// C++ language standard detection +// if the user manually specified the used c++ version this is skipped +#if !defined(JSON_HAS_CPP_20) && !defined(JSON_HAS_CPP_17) && !defined(JSON_HAS_CPP_14) && !defined(JSON_HAS_CPP_11) + #if (defined(__cplusplus) && __cplusplus >= 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L) + #define JSON_HAS_CPP_20 + #define JSON_HAS_CPP_17 + #define JSON_HAS_CPP_14 + #elif (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464 + #define JSON_HAS_CPP_17 + #define JSON_HAS_CPP_14 + #elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1) + #define JSON_HAS_CPP_14 + #endif + // the cpp 11 flag is always specified because it is the minimal required version + #define JSON_HAS_CPP_11 +#endif + +// disable documentation warnings on clang +#if defined(__clang__) + #pragma clang diagnostic push + #pragma clang diagnostic ignored "-Wdocumentation" + #pragma clang diagnostic ignored "-Wdocumentation-unknown-command" +#endif + +// allow to disable exceptions +#if (defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)) && !defined(JSON_NOEXCEPTION) + #define JSON_THROW(exception) throw exception + #define JSON_TRY try + #define JSON_CATCH(exception) catch(exception) + #define JSON_INTERNAL_CATCH(exception) catch(exception) +#else + #include + #define JSON_THROW(exception) std::abort() + #define JSON_TRY if(true) + #define JSON_CATCH(exception) if(false) + #define JSON_INTERNAL_CATCH(exception) if(false) +#endif + +// override exception macros +#if defined(JSON_THROW_USER) + #undef JSON_THROW + #define JSON_THROW JSON_THROW_USER +#endif +#if defined(JSON_TRY_USER) + #undef JSON_TRY + #define JSON_TRY JSON_TRY_USER +#endif +#if defined(JSON_CATCH_USER) + #undef JSON_CATCH + #define JSON_CATCH JSON_CATCH_USER + #undef JSON_INTERNAL_CATCH + #define JSON_INTERNAL_CATCH JSON_CATCH_USER +#endif +#if defined(JSON_INTERNAL_CATCH_USER) + #undef JSON_INTERNAL_CATCH + #define JSON_INTERNAL_CATCH JSON_INTERNAL_CATCH_USER +#endif + +// allow to override assert +#if !defined(JSON_ASSERT) + #include // assert + #define JSON_ASSERT(x) assert(x) +#endif + +// allow to access some private functions (needed by the test suite) +#if defined(JSON_TESTS_PRIVATE) + #define JSON_PRIVATE_UNLESS_TESTED public +#else + #define JSON_PRIVATE_UNLESS_TESTED private +#endif + +/*! +@brief macro to briefly define a mapping between an enum and JSON +@def NLOHMANN_JSON_SERIALIZE_ENUM +@since version 3.4.0 +*/ +#define NLOHMANN_JSON_SERIALIZE_ENUM(ENUM_TYPE, ...) \ + template \ + inline void to_json(BasicJsonType& j, const ENUM_TYPE& e) \ + { \ + static_assert(std::is_enum::value, #ENUM_TYPE " must be an enum!"); \ + static const std::pair m[] = __VA_ARGS__; \ + auto it = std::find_if(std::begin(m), std::end(m), \ + [e](const std::pair& ej_pair) -> bool \ + { \ + return ej_pair.first == e; \ + }); \ + j = ((it != std::end(m)) ? it : std::begin(m))->second; \ + } \ + template \ + inline void from_json(const BasicJsonType& j, ENUM_TYPE& e) \ + { \ + static_assert(std::is_enum::value, #ENUM_TYPE " must be an enum!"); \ + static const std::pair m[] = __VA_ARGS__; \ + auto it = std::find_if(std::begin(m), std::end(m), \ + [&j](const std::pair& ej_pair) -> bool \ + { \ + return ej_pair.second == j; \ + }); \ + e = ((it != std::end(m)) ? it : std::begin(m))->first; \ + } + +// Ugly macros to avoid uglier copy-paste when specializing basic_json. They +// may be removed in the future once the class is split. + +#define NLOHMANN_BASIC_JSON_TPL_DECLARATION \ + template class ObjectType, \ + template class ArrayType, \ + class StringType, class BooleanType, class NumberIntegerType, \ + class NumberUnsignedType, class NumberFloatType, \ + template class AllocatorType, \ + template class JSONSerializer, \ + class BinaryType> + +#define NLOHMANN_BASIC_JSON_TPL \ + basic_json + +// Macros to simplify conversion from/to types + +#define NLOHMANN_JSON_EXPAND( x ) x +#define NLOHMANN_JSON_GET_MACRO(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, NAME,...) NAME +#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, \ + NLOHMANN_JSON_PASTE64, \ + NLOHMANN_JSON_PASTE63, \ + NLOHMANN_JSON_PASTE62, \ + NLOHMANN_JSON_PASTE61, \ + NLOHMANN_JSON_PASTE60, \ + NLOHMANN_JSON_PASTE59, \ + NLOHMANN_JSON_PASTE58, \ + NLOHMANN_JSON_PASTE57, \ + NLOHMANN_JSON_PASTE56, \ + NLOHMANN_JSON_PASTE55, \ + NLOHMANN_JSON_PASTE54, \ + NLOHMANN_JSON_PASTE53, \ + NLOHMANN_JSON_PASTE52, \ + NLOHMANN_JSON_PASTE51, \ + NLOHMANN_JSON_PASTE50, \ + NLOHMANN_JSON_PASTE49, \ + NLOHMANN_JSON_PASTE48, \ + NLOHMANN_JSON_PASTE47, \ + NLOHMANN_JSON_PASTE46, \ + NLOHMANN_JSON_PASTE45, \ + NLOHMANN_JSON_PASTE44, \ + NLOHMANN_JSON_PASTE43, \ + NLOHMANN_JSON_PASTE42, \ + NLOHMANN_JSON_PASTE41, \ + NLOHMANN_JSON_PASTE40, \ + NLOHMANN_JSON_PASTE39, \ + NLOHMANN_JSON_PASTE38, \ + NLOHMANN_JSON_PASTE37, \ + NLOHMANN_JSON_PASTE36, \ + NLOHMANN_JSON_PASTE35, \ + NLOHMANN_JSON_PASTE34, \ + NLOHMANN_JSON_PASTE33, \ + NLOHMANN_JSON_PASTE32, \ + NLOHMANN_JSON_PASTE31, \ + NLOHMANN_JSON_PASTE30, \ + NLOHMANN_JSON_PASTE29, \ + NLOHMANN_JSON_PASTE28, \ + NLOHMANN_JSON_PASTE27, \ + NLOHMANN_JSON_PASTE26, \ + NLOHMANN_JSON_PASTE25, \ + NLOHMANN_JSON_PASTE24, \ + NLOHMANN_JSON_PASTE23, \ + NLOHMANN_JSON_PASTE22, \ + NLOHMANN_JSON_PASTE21, \ + NLOHMANN_JSON_PASTE20, \ + NLOHMANN_JSON_PASTE19, \ + NLOHMANN_JSON_PASTE18, \ + NLOHMANN_JSON_PASTE17, \ + NLOHMANN_JSON_PASTE16, \ + NLOHMANN_JSON_PASTE15, \ + NLOHMANN_JSON_PASTE14, \ + NLOHMANN_JSON_PASTE13, \ + NLOHMANN_JSON_PASTE12, \ + NLOHMANN_JSON_PASTE11, \ + NLOHMANN_JSON_PASTE10, \ + NLOHMANN_JSON_PASTE9, \ + NLOHMANN_JSON_PASTE8, \ + NLOHMANN_JSON_PASTE7, \ + NLOHMANN_JSON_PASTE6, \ + NLOHMANN_JSON_PASTE5, \ + NLOHMANN_JSON_PASTE4, \ + NLOHMANN_JSON_PASTE3, \ + NLOHMANN_JSON_PASTE2, \ + NLOHMANN_JSON_PASTE1)(__VA_ARGS__)) +#define NLOHMANN_JSON_PASTE2(func, v1) func(v1) +#define NLOHMANN_JSON_PASTE3(func, v1, v2) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE2(func, v2) +#define NLOHMANN_JSON_PASTE4(func, v1, v2, v3) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE3(func, v2, v3) +#define NLOHMANN_JSON_PASTE5(func, v1, v2, v3, v4) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE4(func, v2, v3, v4) +#define NLOHMANN_JSON_PASTE6(func, v1, v2, v3, v4, v5) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE5(func, v2, v3, v4, v5) +#define NLOHMANN_JSON_PASTE7(func, v1, v2, v3, v4, v5, v6) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE6(func, v2, v3, v4, v5, v6) +#define NLOHMANN_JSON_PASTE8(func, v1, v2, v3, v4, v5, v6, v7) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE7(func, v2, v3, v4, v5, v6, v7) +#define NLOHMANN_JSON_PASTE9(func, v1, v2, v3, v4, v5, v6, v7, v8) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE8(func, v2, v3, v4, v5, v6, v7, v8) +#define NLOHMANN_JSON_PASTE10(func, v1, v2, v3, v4, v5, v6, v7, v8, v9) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE9(func, v2, v3, v4, v5, v6, v7, v8, v9) +#define NLOHMANN_JSON_PASTE11(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE10(func, v2, v3, v4, v5, v6, v7, v8, v9, v10) +#define NLOHMANN_JSON_PASTE12(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE11(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11) +#define NLOHMANN_JSON_PASTE13(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE12(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12) +#define NLOHMANN_JSON_PASTE14(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE13(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13) +#define NLOHMANN_JSON_PASTE15(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE14(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14) +#define NLOHMANN_JSON_PASTE16(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE15(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15) +#define NLOHMANN_JSON_PASTE17(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE16(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16) +#define NLOHMANN_JSON_PASTE18(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE17(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17) +#define NLOHMANN_JSON_PASTE19(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE18(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18) +#define NLOHMANN_JSON_PASTE20(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE19(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19) +#define NLOHMANN_JSON_PASTE21(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE20(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20) +#define NLOHMANN_JSON_PASTE22(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE21(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21) +#define NLOHMANN_JSON_PASTE23(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE22(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22) +#define NLOHMANN_JSON_PASTE24(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE23(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23) +#define NLOHMANN_JSON_PASTE25(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE24(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24) +#define NLOHMANN_JSON_PASTE26(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE25(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25) +#define NLOHMANN_JSON_PASTE27(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE26(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26) +#define NLOHMANN_JSON_PASTE28(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE27(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27) +#define NLOHMANN_JSON_PASTE29(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE28(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28) +#define NLOHMANN_JSON_PASTE30(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE29(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29) +#define NLOHMANN_JSON_PASTE31(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE30(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30) +#define NLOHMANN_JSON_PASTE32(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE31(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31) +#define NLOHMANN_JSON_PASTE33(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE32(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32) +#define NLOHMANN_JSON_PASTE34(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE33(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33) +#define NLOHMANN_JSON_PASTE35(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE34(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34) +#define NLOHMANN_JSON_PASTE36(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE35(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35) +#define NLOHMANN_JSON_PASTE37(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE36(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36) +#define NLOHMANN_JSON_PASTE38(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE37(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37) +#define NLOHMANN_JSON_PASTE39(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE38(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38) +#define NLOHMANN_JSON_PASTE40(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE39(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39) +#define NLOHMANN_JSON_PASTE41(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE40(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40) +#define NLOHMANN_JSON_PASTE42(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE41(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41) +#define NLOHMANN_JSON_PASTE43(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE42(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42) +#define NLOHMANN_JSON_PASTE44(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE43(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43) +#define NLOHMANN_JSON_PASTE45(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE44(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44) +#define NLOHMANN_JSON_PASTE46(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE45(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45) +#define NLOHMANN_JSON_PASTE47(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE46(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46) +#define NLOHMANN_JSON_PASTE48(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE47(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47) +#define NLOHMANN_JSON_PASTE49(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE48(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48) +#define NLOHMANN_JSON_PASTE50(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE49(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49) +#define NLOHMANN_JSON_PASTE51(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE50(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50) +#define NLOHMANN_JSON_PASTE52(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE51(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51) +#define NLOHMANN_JSON_PASTE53(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE52(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52) +#define NLOHMANN_JSON_PASTE54(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE53(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53) +#define NLOHMANN_JSON_PASTE55(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE54(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54) +#define NLOHMANN_JSON_PASTE56(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE55(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55) +#define NLOHMANN_JSON_PASTE57(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE56(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56) +#define NLOHMANN_JSON_PASTE58(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE57(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57) +#define NLOHMANN_JSON_PASTE59(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE58(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58) +#define NLOHMANN_JSON_PASTE60(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE59(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59) +#define NLOHMANN_JSON_PASTE61(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE60(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60) +#define NLOHMANN_JSON_PASTE62(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE61(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61) +#define NLOHMANN_JSON_PASTE63(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE62(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62) +#define NLOHMANN_JSON_PASTE64(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62, v63) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE63(func, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16, v17, v18, v19, v20, v21, v22, v23, v24, v25, v26, v27, v28, v29, v30, v31, v32, v33, v34, v35, v36, v37, v38, v39, v40, v41, v42, v43, v44, v45, v46, v47, v48, v49, v50, v51, v52, v53, v54, v55, v56, v57, v58, v59, v60, v61, v62, v63) + +#define NLOHMANN_JSON_TO(v1) nlohmann_json_j[#v1] = nlohmann_json_t.v1; +#define NLOHMANN_JSON_FROM(v1) nlohmann_json_j.at(#v1).get_to(nlohmann_json_t.v1); + +/*! +@brief macro +@def NLOHMANN_DEFINE_TYPE_INTRUSIVE +@since version 3.9.0 +*/ +#define NLOHMANN_DEFINE_TYPE_INTRUSIVE(Type, ...) \ + friend void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \ + friend void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) } + +/*! +@brief macro +@def NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE +@since version 3.9.0 +*/ +#define NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(Type, ...) \ + inline void to_json(nlohmann::json& nlohmann_json_j, const Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \ + inline void from_json(const nlohmann::json& nlohmann_json_j, Type& nlohmann_json_t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) } + +#ifndef JSON_USE_IMPLICIT_CONVERSIONS + #define JSON_USE_IMPLICIT_CONVERSIONS 1 +#endif + +#if JSON_USE_IMPLICIT_CONVERSIONS + #define JSON_EXPLICIT +#else + #define JSON_EXPLICIT explicit +#endif + +#ifndef JSON_DIAGNOSTICS + #define JSON_DIAGNOSTICS 0 +#endif + + +namespace nlohmann +{ +namespace detail +{ + +/*! +@brief replace all occurrences of a substring by another string + +@param[in,out] s the string to manipulate; changed so that all + occurrences of @a f are replaced with @a t +@param[in] f the substring to replace with @a t +@param[in] t the string to replace @a f + +@pre The search string @a f must not be empty. **This precondition is +enforced with an assertion.** + +@since version 2.0.0 +*/ +inline void replace_substring(std::string& s, const std::string& f, + const std::string& t) +{ + JSON_ASSERT(!f.empty()); + for (auto pos = s.find(f); // find first occurrence of f + pos != std::string::npos; // make sure f was found + s.replace(pos, f.size(), t), // replace with t, and + pos = s.find(f, pos + t.size())) // find next occurrence of f + {} +} + +/*! + * @brief string escaping as described in RFC 6901 (Sect. 4) + * @param[in] s string to escape + * @return escaped string + * + * Note the order of escaping "~" to "~0" and "/" to "~1" is important. + */ +inline std::string escape(std::string s) +{ + replace_substring(s, "~", "~0"); + replace_substring(s, "/", "~1"); + return s; +} + +/*! + * @brief string unescaping as described in RFC 6901 (Sect. 4) + * @param[in] s string to unescape + * @return unescaped string + * + * Note the order of escaping "~1" to "/" and "~0" to "~" is important. + */ +static void unescape(std::string& s) +{ + replace_substring(s, "~1", "/"); + replace_substring(s, "~0", "~"); +} + +} // namespace detail +} // namespace nlohmann + +// #include + + +#include // size_t + +namespace nlohmann +{ +namespace detail +{ +/// struct to capture the start position of the current token +struct position_t +{ + /// the total number of characters read + std::size_t chars_read_total = 0; + /// the number of characters read in the current line + std::size_t chars_read_current_line = 0; + /// the number of lines read + std::size_t lines_read = 0; + + /// conversion to size_t to preserve SAX interface + constexpr operator size_t() const + { + return chars_read_total; + } +}; + +} // namespace detail +} // namespace nlohmann + +// #include + + +namespace nlohmann +{ +namespace detail +{ +//////////////// +// exceptions // +//////////////// + +/*! +@brief general exception of the @ref basic_json class + +This class is an extension of `std::exception` objects with a member @a id for +exception ids. It is used as the base class for all exceptions thrown by the +@ref basic_json class. This class can hence be used as "wildcard" to catch +exceptions. + +Subclasses: +- @ref parse_error for exceptions indicating a parse error +- @ref invalid_iterator for exceptions indicating errors with iterators +- @ref type_error for exceptions indicating executing a member function with + a wrong type +- @ref out_of_range for exceptions indicating access out of the defined range +- @ref other_error for exceptions indicating other library errors + +@internal +@note To have nothrow-copy-constructible exceptions, we internally use + `std::runtime_error` which can cope with arbitrary-length error messages. + Intermediate strings are built with static functions and then passed to + the actual constructor. +@endinternal + +@liveexample{The following code shows how arbitrary library exceptions can be +caught.,exception} + +@since version 3.0.0 +*/ +class exception : public std::exception +{ + public: + /// returns the explanatory string + const char* what() const noexcept override + { + return m.what(); + } + + /// the id of the exception + const int id; // NOLINT(cppcoreguidelines-non-private-member-variables-in-classes) + + protected: + JSON_HEDLEY_NON_NULL(3) + exception(int id_, const char* what_arg) : id(id_), m(what_arg) {} + + static std::string name(const std::string& ename, int id_) + { + return "[json.exception." + ename + "." + std::to_string(id_) + "] "; + } + + template + static std::string diagnostics(const BasicJsonType& leaf_element) + { +#if JSON_DIAGNOSTICS + std::vector tokens; + for (const auto* current = &leaf_element; current->m_parent != nullptr; current = current->m_parent) + { + switch (current->m_parent->type()) + { + case value_t::array: + { + for (std::size_t i = 0; i < current->m_parent->m_value.array->size(); ++i) + { + if (¤t->m_parent->m_value.array->operator[](i) == current) + { + tokens.emplace_back(std::to_string(i)); + break; + } + } + break; + } + + case value_t::object: + { + for (const auto& element : *current->m_parent->m_value.object) + { + if (&element.second == current) + { + tokens.emplace_back(element.first.c_str()); + break; + } + } + break; + } + + case value_t::null: // LCOV_EXCL_LINE + case value_t::string: // LCOV_EXCL_LINE + case value_t::boolean: // LCOV_EXCL_LINE + case value_t::number_integer: // LCOV_EXCL_LINE + case value_t::number_unsigned: // LCOV_EXCL_LINE + case value_t::number_float: // LCOV_EXCL_LINE + case value_t::binary: // LCOV_EXCL_LINE + case value_t::discarded: // LCOV_EXCL_LINE + default: // LCOV_EXCL_LINE + break; // LCOV_EXCL_LINE + } + } + + if (tokens.empty()) + { + return ""; + } + + return "(" + std::accumulate(tokens.rbegin(), tokens.rend(), std::string{}, + [](const std::string & a, const std::string & b) + { + return a + "/" + detail::escape(b); + }) + ") "; +#else + static_cast(leaf_element); + return ""; +#endif + } + + private: + /// an exception object as storage for error messages + std::runtime_error m; +}; + +/*! +@brief exception indicating a parse error + +This exception is thrown by the library when a parse error occurs. Parse errors +can occur during the deserialization of JSON text, CBOR, MessagePack, as well +as when using JSON Patch. + +Member @a byte holds the byte index of the last read character in the input +file. + +Exceptions have ids 1xx. + +name / id | example message | description +------------------------------ | --------------- | ------------------------- +json.exception.parse_error.101 | parse error at 2: unexpected end of input; expected string literal | This error indicates a syntax error while deserializing a JSON text. The error message describes that an unexpected token (character) was encountered, and the member @a byte indicates the error position. +json.exception.parse_error.102 | parse error at 14: missing or wrong low surrogate | JSON uses the `\uxxxx` format to describe Unicode characters. Code points above above 0xFFFF are split into two `\uxxxx` entries ("surrogate pairs"). This error indicates that the surrogate pair is incomplete or contains an invalid code point. +json.exception.parse_error.103 | parse error: code points above 0x10FFFF are invalid | Unicode supports code points up to 0x10FFFF. Code points above 0x10FFFF are invalid. +json.exception.parse_error.104 | parse error: JSON patch must be an array of objects | [RFC 6902](https://tools.ietf.org/html/rfc6902) requires a JSON Patch document to be a JSON document that represents an array of objects. +json.exception.parse_error.105 | parse error: operation must have string member 'op' | An operation of a JSON Patch document must contain exactly one "op" member, whose value indicates the operation to perform. Its value must be one of "add", "remove", "replace", "move", "copy", or "test"; other values are errors. +json.exception.parse_error.106 | parse error: array index '01' must not begin with '0' | An array index in a JSON Pointer ([RFC 6901](https://tools.ietf.org/html/rfc6901)) may be `0` or any number without a leading `0`. +json.exception.parse_error.107 | parse error: JSON pointer must be empty or begin with '/' - was: 'foo' | A JSON Pointer must be a Unicode string containing a sequence of zero or more reference tokens, each prefixed by a `/` character. +json.exception.parse_error.108 | parse error: escape character '~' must be followed with '0' or '1' | In a JSON Pointer, only `~0` and `~1` are valid escape sequences. +json.exception.parse_error.109 | parse error: array index 'one' is not a number | A JSON Pointer array index must be a number. +json.exception.parse_error.110 | parse error at 1: cannot read 2 bytes from vector | When parsing CBOR or MessagePack, the byte vector ends before the complete value has been read. +json.exception.parse_error.112 | parse error at 1: error reading CBOR; last byte: 0xF8 | Not all types of CBOR or MessagePack are supported. This exception occurs if an unsupported byte was read. +json.exception.parse_error.113 | parse error at 2: expected a CBOR string; last byte: 0x98 | While parsing a map key, a value that is not a string has been read. +json.exception.parse_error.114 | parse error: Unsupported BSON record type 0x0F | The parsing of the corresponding BSON record type is not implemented (yet). +json.exception.parse_error.115 | parse error at byte 5: syntax error while parsing UBJSON high-precision number: invalid number text: 1A | A UBJSON high-precision number could not be parsed. + +@note For an input with n bytes, 1 is the index of the first character and n+1 + is the index of the terminating null byte or the end of file. This also + holds true when reading a byte vector (CBOR or MessagePack). + +@liveexample{The following code shows how a `parse_error` exception can be +caught.,parse_error} + +@sa - @ref exception for the base class of the library exceptions +@sa - @ref invalid_iterator for exceptions indicating errors with iterators +@sa - @ref type_error for exceptions indicating executing a member function with + a wrong type +@sa - @ref out_of_range for exceptions indicating access out of the defined range +@sa - @ref other_error for exceptions indicating other library errors + +@since version 3.0.0 +*/ +class parse_error : public exception +{ + public: + /*! + @brief create a parse error exception + @param[in] id_ the id of the exception + @param[in] pos the position where the error occurred (or with + chars_read_total=0 if the position cannot be + determined) + @param[in] what_arg the explanatory string + @return parse_error object + */ + template + static parse_error create(int id_, const position_t& pos, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("parse_error", id_) + "parse error" + + position_string(pos) + ": " + exception::diagnostics(context) + what_arg; + return parse_error(id_, pos.chars_read_total, w.c_str()); + } + + template + static parse_error create(int id_, std::size_t byte_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("parse_error", id_) + "parse error" + + (byte_ != 0 ? (" at byte " + std::to_string(byte_)) : "") + + ": " + exception::diagnostics(context) + what_arg; + return parse_error(id_, byte_, w.c_str()); + } + + /*! + @brief byte index of the parse error + + The byte index of the last read character in the input file. + + @note For an input with n bytes, 1 is the index of the first character and + n+1 is the index of the terminating null byte or the end of file. + This also holds true when reading a byte vector (CBOR or MessagePack). + */ + const std::size_t byte; + + private: + parse_error(int id_, std::size_t byte_, const char* what_arg) + : exception(id_, what_arg), byte(byte_) {} + + static std::string position_string(const position_t& pos) + { + return " at line " + std::to_string(pos.lines_read + 1) + + ", column " + std::to_string(pos.chars_read_current_line); + } +}; + +/*! +@brief exception indicating errors with iterators + +This exception is thrown if iterators passed to a library function do not match +the expected semantics. + +Exceptions have ids 2xx. + +name / id | example message | description +----------------------------------- | --------------- | ------------------------- +json.exception.invalid_iterator.201 | iterators are not compatible | The iterators passed to constructor @ref basic_json(InputIT first, InputIT last) are not compatible, meaning they do not belong to the same container. Therefore, the range (@a first, @a last) is invalid. +json.exception.invalid_iterator.202 | iterator does not fit current value | In an erase or insert function, the passed iterator @a pos does not belong to the JSON value for which the function was called. It hence does not define a valid position for the deletion/insertion. +json.exception.invalid_iterator.203 | iterators do not fit current value | Either iterator passed to function @ref erase(IteratorType first, IteratorType last) does not belong to the JSON value from which values shall be erased. It hence does not define a valid range to delete values from. +json.exception.invalid_iterator.204 | iterators out of range | When an iterator range for a primitive type (number, boolean, or string) is passed to a constructor or an erase function, this range has to be exactly (@ref begin(), @ref end()), because this is the only way the single stored value is expressed. All other ranges are invalid. +json.exception.invalid_iterator.205 | iterator out of range | When an iterator for a primitive type (number, boolean, or string) is passed to an erase function, the iterator has to be the @ref begin() iterator, because it is the only way to address the stored value. All other iterators are invalid. +json.exception.invalid_iterator.206 | cannot construct with iterators from null | The iterators passed to constructor @ref basic_json(InputIT first, InputIT last) belong to a JSON null value and hence to not define a valid range. +json.exception.invalid_iterator.207 | cannot use key() for non-object iterators | The key() member function can only be used on iterators belonging to a JSON object, because other types do not have a concept of a key. +json.exception.invalid_iterator.208 | cannot use operator[] for object iterators | The operator[] to specify a concrete offset cannot be used on iterators belonging to a JSON object, because JSON objects are unordered. +json.exception.invalid_iterator.209 | cannot use offsets with object iterators | The offset operators (+, -, +=, -=) cannot be used on iterators belonging to a JSON object, because JSON objects are unordered. +json.exception.invalid_iterator.210 | iterators do not fit | The iterator range passed to the insert function are not compatible, meaning they do not belong to the same container. Therefore, the range (@a first, @a last) is invalid. +json.exception.invalid_iterator.211 | passed iterators may not belong to container | The iterator range passed to the insert function must not be a subrange of the container to insert to. +json.exception.invalid_iterator.212 | cannot compare iterators of different containers | When two iterators are compared, they must belong to the same container. +json.exception.invalid_iterator.213 | cannot compare order of object iterators | The order of object iterators cannot be compared, because JSON objects are unordered. +json.exception.invalid_iterator.214 | cannot get value | Cannot get value for iterator: Either the iterator belongs to a null value or it is an iterator to a primitive type (number, boolean, or string), but the iterator is different to @ref begin(). + +@liveexample{The following code shows how an `invalid_iterator` exception can be +caught.,invalid_iterator} + +@sa - @ref exception for the base class of the library exceptions +@sa - @ref parse_error for exceptions indicating a parse error +@sa - @ref type_error for exceptions indicating executing a member function with + a wrong type +@sa - @ref out_of_range for exceptions indicating access out of the defined range +@sa - @ref other_error for exceptions indicating other library errors + +@since version 3.0.0 +*/ +class invalid_iterator : public exception +{ + public: + template + static invalid_iterator create(int id_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("invalid_iterator", id_) + exception::diagnostics(context) + what_arg; + return invalid_iterator(id_, w.c_str()); + } + + private: + JSON_HEDLEY_NON_NULL(3) + invalid_iterator(int id_, const char* what_arg) + : exception(id_, what_arg) {} +}; + +/*! +@brief exception indicating executing a member function with a wrong type + +This exception is thrown in case of a type error; that is, a library function is +executed on a JSON value whose type does not match the expected semantics. + +Exceptions have ids 3xx. + +name / id | example message | description +----------------------------- | --------------- | ------------------------- +json.exception.type_error.301 | cannot create object from initializer list | To create an object from an initializer list, the initializer list must consist only of a list of pairs whose first element is a string. When this constraint is violated, an array is created instead. +json.exception.type_error.302 | type must be object, but is array | During implicit or explicit value conversion, the JSON type must be compatible to the target type. For instance, a JSON string can only be converted into string types, but not into numbers or boolean types. +json.exception.type_error.303 | incompatible ReferenceType for get_ref, actual type is object | To retrieve a reference to a value stored in a @ref basic_json object with @ref get_ref, the type of the reference must match the value type. For instance, for a JSON array, the @a ReferenceType must be @ref array_t &. +json.exception.type_error.304 | cannot use at() with string | The @ref at() member functions can only be executed for certain JSON types. +json.exception.type_error.305 | cannot use operator[] with string | The @ref operator[] member functions can only be executed for certain JSON types. +json.exception.type_error.306 | cannot use value() with string | The @ref value() member functions can only be executed for certain JSON types. +json.exception.type_error.307 | cannot use erase() with string | The @ref erase() member functions can only be executed for certain JSON types. +json.exception.type_error.308 | cannot use push_back() with string | The @ref push_back() and @ref operator+= member functions can only be executed for certain JSON types. +json.exception.type_error.309 | cannot use insert() with | The @ref insert() member functions can only be executed for certain JSON types. +json.exception.type_error.310 | cannot use swap() with number | The @ref swap() member functions can only be executed for certain JSON types. +json.exception.type_error.311 | cannot use emplace_back() with string | The @ref emplace_back() member function can only be executed for certain JSON types. +json.exception.type_error.312 | cannot use update() with string | The @ref update() member functions can only be executed for certain JSON types. +json.exception.type_error.313 | invalid value to unflatten | The @ref unflatten function converts an object whose keys are JSON Pointers back into an arbitrary nested JSON value. The JSON Pointers must not overlap, because then the resulting value would not be well defined. +json.exception.type_error.314 | only objects can be unflattened | The @ref unflatten function only works for an object whose keys are JSON Pointers. +json.exception.type_error.315 | values in object must be primitive | The @ref unflatten function only works for an object whose keys are JSON Pointers and whose values are primitive. +json.exception.type_error.316 | invalid UTF-8 byte at index 10: 0x7E | The @ref dump function only works with UTF-8 encoded strings; that is, if you assign a `std::string` to a JSON value, make sure it is UTF-8 encoded. | +json.exception.type_error.317 | JSON value cannot be serialized to requested format | The dynamic type of the object cannot be represented in the requested serialization format (e.g. a raw `true` or `null` JSON object cannot be serialized to BSON) | + +@liveexample{The following code shows how a `type_error` exception can be +caught.,type_error} + +@sa - @ref exception for the base class of the library exceptions +@sa - @ref parse_error for exceptions indicating a parse error +@sa - @ref invalid_iterator for exceptions indicating errors with iterators +@sa - @ref out_of_range for exceptions indicating access out of the defined range +@sa - @ref other_error for exceptions indicating other library errors + +@since version 3.0.0 +*/ +class type_error : public exception +{ + public: + template + static type_error create(int id_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("type_error", id_) + exception::diagnostics(context) + what_arg; + return type_error(id_, w.c_str()); + } + + private: + JSON_HEDLEY_NON_NULL(3) + type_error(int id_, const char* what_arg) : exception(id_, what_arg) {} +}; + +/*! +@brief exception indicating access out of the defined range + +This exception is thrown in case a library function is called on an input +parameter that exceeds the expected range, for instance in case of array +indices or nonexisting object keys. + +Exceptions have ids 4xx. + +name / id | example message | description +------------------------------- | --------------- | ------------------------- +json.exception.out_of_range.401 | array index 3 is out of range | The provided array index @a i is larger than @a size-1. +json.exception.out_of_range.402 | array index '-' (3) is out of range | The special array index `-` in a JSON Pointer never describes a valid element of the array, but the index past the end. That is, it can only be used to add elements at this position, but not to read it. +json.exception.out_of_range.403 | key 'foo' not found | The provided key was not found in the JSON object. +json.exception.out_of_range.404 | unresolved reference token 'foo' | A reference token in a JSON Pointer could not be resolved. +json.exception.out_of_range.405 | JSON pointer has no parent | The JSON Patch operations 'remove' and 'add' can not be applied to the root element of the JSON value. +json.exception.out_of_range.406 | number overflow parsing '10E1000' | A parsed number could not be stored as without changing it to NaN or INF. +json.exception.out_of_range.407 | number overflow serializing '9223372036854775808' | UBJSON and BSON only support integer numbers up to 9223372036854775807. (until version 3.8.0) | +json.exception.out_of_range.408 | excessive array size: 8658170730974374167 | The size (following `#`) of an UBJSON array or object exceeds the maximal capacity. | +json.exception.out_of_range.409 | BSON key cannot contain code point U+0000 (at byte 2) | Key identifiers to be serialized to BSON cannot contain code point U+0000, since the key is stored as zero-terminated c-string | + +@liveexample{The following code shows how an `out_of_range` exception can be +caught.,out_of_range} + +@sa - @ref exception for the base class of the library exceptions +@sa - @ref parse_error for exceptions indicating a parse error +@sa - @ref invalid_iterator for exceptions indicating errors with iterators +@sa - @ref type_error for exceptions indicating executing a member function with + a wrong type +@sa - @ref other_error for exceptions indicating other library errors + +@since version 3.0.0 +*/ +class out_of_range : public exception +{ + public: + template + static out_of_range create(int id_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("out_of_range", id_) + exception::diagnostics(context) + what_arg; + return out_of_range(id_, w.c_str()); + } + + private: + JSON_HEDLEY_NON_NULL(3) + out_of_range(int id_, const char* what_arg) : exception(id_, what_arg) {} +}; + +/*! +@brief exception indicating other library errors + +This exception is thrown in case of errors that cannot be classified with the +other exception types. + +Exceptions have ids 5xx. + +name / id | example message | description +------------------------------ | --------------- | ------------------------- +json.exception.other_error.501 | unsuccessful: {"op":"test","path":"/baz", "value":"bar"} | A JSON Patch operation 'test' failed. The unsuccessful operation is also printed. + +@sa - @ref exception for the base class of the library exceptions +@sa - @ref parse_error for exceptions indicating a parse error +@sa - @ref invalid_iterator for exceptions indicating errors with iterators +@sa - @ref type_error for exceptions indicating executing a member function with + a wrong type +@sa - @ref out_of_range for exceptions indicating access out of the defined range + +@liveexample{The following code shows how an `other_error` exception can be +caught.,other_error} + +@since version 3.0.0 +*/ +class other_error : public exception +{ + public: + template + static other_error create(int id_, const std::string& what_arg, const BasicJsonType& context) + { + std::string w = exception::name("other_error", id_) + exception::diagnostics(context) + what_arg; + return other_error(id_, w.c_str()); + } + + private: + JSON_HEDLEY_NON_NULL(3) + other_error(int id_, const char* what_arg) : exception(id_, what_arg) {} +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + + +#include // size_t +#include // conditional, enable_if, false_type, integral_constant, is_constructible, is_integral, is_same, remove_cv, remove_reference, true_type +#include // index_sequence, make_index_sequence, index_sequence_for + +// #include + + +namespace nlohmann +{ +namespace detail +{ + +template +using uncvref_t = typename std::remove_cv::type>::type; + +#ifdef JSON_HAS_CPP_14 + +// the following utilities are natively available in C++14 +using std::enable_if_t; +using std::index_sequence; +using std::make_index_sequence; +using std::index_sequence_for; + +#else + +// alias templates to reduce boilerplate +template +using enable_if_t = typename std::enable_if::type; + +// The following code is taken from https://github.com/abseil/abseil-cpp/blob/10cb35e459f5ecca5b2ff107635da0bfa41011b4/absl/utility/utility.h +// which is part of Google Abseil (https://github.com/abseil/abseil-cpp), licensed under the Apache License 2.0. + +//// START OF CODE FROM GOOGLE ABSEIL + +// integer_sequence +// +// Class template representing a compile-time integer sequence. An instantiation +// of `integer_sequence` has a sequence of integers encoded in its +// type through its template arguments (which is a common need when +// working with C++11 variadic templates). `absl::integer_sequence` is designed +// to be a drop-in replacement for C++14's `std::integer_sequence`. +// +// Example: +// +// template< class T, T... Ints > +// void user_function(integer_sequence); +// +// int main() +// { +// // user_function's `T` will be deduced to `int` and `Ints...` +// // will be deduced to `0, 1, 2, 3, 4`. +// user_function(make_integer_sequence()); +// } +template +struct integer_sequence +{ + using value_type = T; + static constexpr std::size_t size() noexcept + { + return sizeof...(Ints); + } +}; + +// index_sequence +// +// A helper template for an `integer_sequence` of `size_t`, +// `absl::index_sequence` is designed to be a drop-in replacement for C++14's +// `std::index_sequence`. +template +using index_sequence = integer_sequence; + +namespace utility_internal +{ + +template +struct Extend; + +// Note that SeqSize == sizeof...(Ints). It's passed explicitly for efficiency. +template +struct Extend, SeqSize, 0> +{ + using type = integer_sequence < T, Ints..., (Ints + SeqSize)... >; +}; + +template +struct Extend, SeqSize, 1> +{ + using type = integer_sequence < T, Ints..., (Ints + SeqSize)..., 2 * SeqSize >; +}; + +// Recursion helper for 'make_integer_sequence'. +// 'Gen::type' is an alias for 'integer_sequence'. +template +struct Gen +{ + using type = + typename Extend < typename Gen < T, N / 2 >::type, N / 2, N % 2 >::type; +}; + +template +struct Gen +{ + using type = integer_sequence; +}; + +} // namespace utility_internal + +// Compile-time sequences of integers + +// make_integer_sequence +// +// This template alias is equivalent to +// `integer_sequence`, and is designed to be a drop-in +// replacement for C++14's `std::make_integer_sequence`. +template +using make_integer_sequence = typename utility_internal::Gen::type; + +// make_index_sequence +// +// This template alias is equivalent to `index_sequence<0, 1, ..., N-1>`, +// and is designed to be a drop-in replacement for C++14's +// `std::make_index_sequence`. +template +using make_index_sequence = make_integer_sequence; + +// index_sequence_for +// +// Converts a typename pack into an index sequence of the same length, and +// is designed to be a drop-in replacement for C++14's +// `std::index_sequence_for()` +template +using index_sequence_for = make_index_sequence; + +//// END OF CODE FROM GOOGLE ABSEIL + +#endif + +// dispatch utility (taken from ranges-v3) +template struct priority_tag : priority_tag < N - 1 > {}; +template<> struct priority_tag<0> {}; + +// taken from ranges-v3 +template +struct static_const +{ + static constexpr T value{}; +}; + +template +constexpr T static_const::value; + +} // namespace detail +} // namespace nlohmann + +// #include + + +namespace nlohmann +{ +namespace detail +{ +// dispatching helper struct +template struct identity_tag {}; +} // namespace detail +} // namespace nlohmann + +// #include + + +#include // numeric_limits +#include // false_type, is_constructible, is_integral, is_same, true_type +#include // declval +#include // tuple + +// #include + + +#include // random_access_iterator_tag + +// #include + + +namespace nlohmann +{ +namespace detail +{ +template struct make_void +{ + using type = void; +}; +template using void_t = typename make_void::type; +} // namespace detail +} // namespace nlohmann + +// #include + + +namespace nlohmann +{ +namespace detail +{ +template +struct iterator_types {}; + +template +struct iterator_types < + It, + void_t> +{ + using difference_type = typename It::difference_type; + using value_type = typename It::value_type; + using pointer = typename It::pointer; + using reference = typename It::reference; + using iterator_category = typename It::iterator_category; +}; + +// This is required as some compilers implement std::iterator_traits in a way that +// doesn't work with SFINAE. See https://github.com/nlohmann/json/issues/1341. +template +struct iterator_traits +{ +}; + +template +struct iterator_traits < T, enable_if_t < !std::is_pointer::value >> + : iterator_types +{ +}; + +template +struct iterator_traits::value>> +{ + using iterator_category = std::random_access_iterator_tag; + using value_type = T; + using difference_type = ptrdiff_t; + using pointer = T*; + using reference = T&; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + +// #include + + +#include + +// #include + + +// https://en.cppreference.com/w/cpp/experimental/is_detected +namespace nlohmann +{ +namespace detail +{ +struct nonesuch +{ + nonesuch() = delete; + ~nonesuch() = delete; + nonesuch(nonesuch const&) = delete; + nonesuch(nonesuch const&&) = delete; + void operator=(nonesuch const&) = delete; + void operator=(nonesuch&&) = delete; +}; + +template class Op, + class... Args> +struct detector +{ + using value_t = std::false_type; + using type = Default; +}; + +template class Op, class... Args> +struct detector>, Op, Args...> +{ + using value_t = std::true_type; + using type = Op; +}; + +template class Op, class... Args> +using is_detected = typename detector::value_t; + +template class Op, class... Args> +struct is_detected_lazy : is_detected { }; + +template class Op, class... Args> +using detected_t = typename detector::type; + +template class Op, class... Args> +using detected_or = detector; + +template class Op, class... Args> +using detected_or_t = typename detected_or::type; + +template class Op, class... Args> +using is_detected_exact = std::is_same>; + +template class Op, class... Args> +using is_detected_convertible = + std::is_convertible, To>; +} // namespace detail +} // namespace nlohmann + +// #include +#ifndef INCLUDE_NLOHMANN_JSON_FWD_HPP_ +#define INCLUDE_NLOHMANN_JSON_FWD_HPP_ + +#include // int64_t, uint64_t +#include // map +#include // allocator +#include // string +#include // vector + +/*! +@brief namespace for Niels Lohmann +@see https://github.com/nlohmann +@since version 1.0.0 +*/ +namespace nlohmann +{ +/*! +@brief default JSONSerializer template argument + +This serializer ignores the template arguments and uses ADL +([argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl)) +for serialization. +*/ +template +struct adl_serializer; + +template class ObjectType = + std::map, + template class ArrayType = std::vector, + class StringType = std::string, class BooleanType = bool, + class NumberIntegerType = std::int64_t, + class NumberUnsignedType = std::uint64_t, + class NumberFloatType = double, + template class AllocatorType = std::allocator, + template class JSONSerializer = + adl_serializer, + class BinaryType = std::vector> +class basic_json; + +/*! +@brief JSON Pointer + +A JSON pointer defines a string syntax for identifying a specific value +within a JSON document. It can be used with functions `at` and +`operator[]`. Furthermore, JSON pointers are the base for JSON patches. + +@sa [RFC 6901](https://tools.ietf.org/html/rfc6901) + +@since version 2.0.0 +*/ +template +class json_pointer; + +/*! +@brief default JSON class + +This type is the default specialization of the @ref basic_json class which +uses the standard template types. + +@since version 1.0.0 +*/ +using json = basic_json<>; + +template +struct ordered_map; + +/*! +@brief ordered JSON class + +This type preserves the insertion order of object keys. + +@since version 3.9.0 +*/ +using ordered_json = basic_json; + +} // namespace nlohmann + +#endif // INCLUDE_NLOHMANN_JSON_FWD_HPP_ + + +namespace nlohmann +{ +/*! +@brief detail namespace with internal helper functions + +This namespace collects functions that should not be exposed, +implementations of some @ref basic_json methods, and meta-programming helpers. + +@since version 2.1.0 +*/ +namespace detail +{ +///////////// +// helpers // +///////////// + +// Note to maintainers: +// +// Every trait in this file expects a non CV-qualified type. +// The only exceptions are in the 'aliases for detected' section +// (i.e. those of the form: decltype(T::member_function(std::declval()))) +// +// In this case, T has to be properly CV-qualified to constraint the function arguments +// (e.g. to_json(BasicJsonType&, const T&)) + +template struct is_basic_json : std::false_type {}; + +NLOHMANN_BASIC_JSON_TPL_DECLARATION +struct is_basic_json : std::true_type {}; + +////////////////////// +// json_ref helpers // +////////////////////// + +template +class json_ref; + +template +struct is_json_ref : std::false_type {}; + +template +struct is_json_ref> : std::true_type {}; + +////////////////////////// +// aliases for detected // +////////////////////////// + +template +using mapped_type_t = typename T::mapped_type; + +template +using key_type_t = typename T::key_type; + +template +using value_type_t = typename T::value_type; + +template +using difference_type_t = typename T::difference_type; + +template +using pointer_t = typename T::pointer; + +template +using reference_t = typename T::reference; + +template +using iterator_category_t = typename T::iterator_category; + +template +using iterator_t = typename T::iterator; + +template +using to_json_function = decltype(T::to_json(std::declval()...)); + +template +using from_json_function = decltype(T::from_json(std::declval()...)); + +template +using get_template_function = decltype(std::declval().template get()); + +// trait checking if JSONSerializer::from_json(json const&, udt&) exists +template +struct has_from_json : std::false_type {}; + +// trait checking if j.get is valid +// use this trait instead of std::is_constructible or std::is_convertible, +// both rely on, or make use of implicit conversions, and thus fail when T +// has several constructors/operator= (see https://github.com/nlohmann/json/issues/958) +template +struct is_getable +{ + static constexpr bool value = is_detected::value; +}; + +template +struct has_from_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> +{ + using serializer = typename BasicJsonType::template json_serializer; + + static constexpr bool value = + is_detected_exact::value; +}; + +// This trait checks if JSONSerializer::from_json(json const&) exists +// this overload is used for non-default-constructible user-defined-types +template +struct has_non_default_from_json : std::false_type {}; + +template +struct has_non_default_from_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> +{ + using serializer = typename BasicJsonType::template json_serializer; + + static constexpr bool value = + is_detected_exact::value; +}; + +// This trait checks if BasicJsonType::json_serializer::to_json exists +// Do not evaluate the trait when T is a basic_json type, to avoid template instantiation infinite recursion. +template +struct has_to_json : std::false_type {}; + +template +struct has_to_json < BasicJsonType, T, enable_if_t < !is_basic_json::value >> +{ + using serializer = typename BasicJsonType::template json_serializer; + + static constexpr bool value = + is_detected_exact::value; +}; + + +/////////////////// +// is_ functions // +/////////////////// + +// https://en.cppreference.com/w/cpp/types/conjunction +template struct conjunction : std::true_type { }; +template struct conjunction : B1 { }; +template +struct conjunction +: std::conditional, B1>::type {}; + +// https://en.cppreference.com/w/cpp/types/negation +template struct negation : std::integral_constant < bool, !B::value > { }; + +// Reimplementation of is_constructible and is_default_constructible, due to them being broken for +// std::pair and std::tuple until LWG 2367 fix (see https://cplusplus.github.io/LWG/lwg-defects.html#2367). +// This causes compile errors in e.g. clang 3.5 or gcc 4.9. +template +struct is_default_constructible : std::is_default_constructible {}; + +template +struct is_default_constructible> + : conjunction, is_default_constructible> {}; + +template +struct is_default_constructible> + : conjunction, is_default_constructible> {}; + +template +struct is_default_constructible> + : conjunction...> {}; + +template +struct is_default_constructible> + : conjunction...> {}; + + +template +struct is_constructible : std::is_constructible {}; + +template +struct is_constructible> : is_default_constructible> {}; + +template +struct is_constructible> : is_default_constructible> {}; + +template +struct is_constructible> : is_default_constructible> {}; + +template +struct is_constructible> : is_default_constructible> {}; + + +template +struct is_iterator_traits : std::false_type {}; + +template +struct is_iterator_traits> +{ + private: + using traits = iterator_traits; + + public: + static constexpr auto value = + is_detected::value && + is_detected::value && + is_detected::value && + is_detected::value && + is_detected::value; +}; + +// The following implementation of is_complete_type is taken from +// https://blogs.msdn.microsoft.com/vcblog/2015/12/02/partial-support-for-expression-sfinae-in-vs-2015-update-1/ +// and is written by Xiang Fan who agreed to using it in this library. + +template +struct is_complete_type : std::false_type {}; + +template +struct is_complete_type : std::true_type {}; + +template +struct is_compatible_object_type_impl : std::false_type {}; + +template +struct is_compatible_object_type_impl < + BasicJsonType, CompatibleObjectType, + enable_if_t < is_detected::value&& + is_detected::value >> +{ + using object_t = typename BasicJsonType::object_t; + + // macOS's is_constructible does not play well with nonesuch... + static constexpr bool value = + is_constructible::value && + is_constructible::value; +}; + +template +struct is_compatible_object_type + : is_compatible_object_type_impl {}; + +template +struct is_constructible_object_type_impl : std::false_type {}; + +template +struct is_constructible_object_type_impl < + BasicJsonType, ConstructibleObjectType, + enable_if_t < is_detected::value&& + is_detected::value >> +{ + using object_t = typename BasicJsonType::object_t; + + static constexpr bool value = + (is_default_constructible::value && + (std::is_move_assignable::value || + std::is_copy_assignable::value) && + (is_constructible::value && + std::is_same < + typename object_t::mapped_type, + typename ConstructibleObjectType::mapped_type >::value)) || + (has_from_json::value || + has_non_default_from_json < + BasicJsonType, + typename ConstructibleObjectType::mapped_type >::value); +}; + +template +struct is_constructible_object_type + : is_constructible_object_type_impl {}; + +template +struct is_compatible_string_type_impl : std::false_type {}; + +template +struct is_compatible_string_type_impl < + BasicJsonType, CompatibleStringType, + enable_if_t::value >> +{ + static constexpr auto value = + is_constructible::value; +}; + +template +struct is_compatible_string_type + : is_compatible_string_type_impl {}; + +template +struct is_constructible_string_type_impl : std::false_type {}; + +template +struct is_constructible_string_type_impl < + BasicJsonType, ConstructibleStringType, + enable_if_t::value >> +{ + static constexpr auto value = + is_constructible::value; +}; + +template +struct is_constructible_string_type + : is_constructible_string_type_impl {}; + +template +struct is_compatible_array_type_impl : std::false_type {}; + +template +struct is_compatible_array_type_impl < + BasicJsonType, CompatibleArrayType, + enable_if_t < is_detected::value&& + is_detected::value&& +// This is needed because json_reverse_iterator has a ::iterator type... +// Therefore it is detected as a CompatibleArrayType. +// The real fix would be to have an Iterable concept. + !is_iterator_traits < + iterator_traits>::value >> +{ + static constexpr bool value = + is_constructible::value; +}; + +template +struct is_compatible_array_type + : is_compatible_array_type_impl {}; + +template +struct is_constructible_array_type_impl : std::false_type {}; + +template +struct is_constructible_array_type_impl < + BasicJsonType, ConstructibleArrayType, + enable_if_t::value >> + : std::true_type {}; + +template +struct is_constructible_array_type_impl < + BasicJsonType, ConstructibleArrayType, + enable_if_t < !std::is_same::value&& + is_default_constructible::value&& +(std::is_move_assignable::value || + std::is_copy_assignable::value)&& +is_detected::value&& +is_detected::value&& +is_complete_type < +detected_t>::value >> +{ + static constexpr bool value = + // This is needed because json_reverse_iterator has a ::iterator type, + // furthermore, std::back_insert_iterator (and other iterators) have a + // base class `iterator`... Therefore it is detected as a + // ConstructibleArrayType. The real fix would be to have an Iterable + // concept. + !is_iterator_traits>::value && + + (std::is_same::value || + has_from_json::value || + has_non_default_from_json < + BasicJsonType, typename ConstructibleArrayType::value_type >::value); +}; + +template +struct is_constructible_array_type + : is_constructible_array_type_impl {}; + +template +struct is_compatible_integer_type_impl : std::false_type {}; + +template +struct is_compatible_integer_type_impl < + RealIntegerType, CompatibleNumberIntegerType, + enable_if_t < std::is_integral::value&& + std::is_integral::value&& + !std::is_same::value >> +{ + // is there an assert somewhere on overflows? + using RealLimits = std::numeric_limits; + using CompatibleLimits = std::numeric_limits; + + static constexpr auto value = + is_constructible::value && + CompatibleLimits::is_integer && + RealLimits::is_signed == CompatibleLimits::is_signed; +}; + +template +struct is_compatible_integer_type + : is_compatible_integer_type_impl {}; + +template +struct is_compatible_type_impl: std::false_type {}; + +template +struct is_compatible_type_impl < + BasicJsonType, CompatibleType, + enable_if_t::value >> +{ + static constexpr bool value = + has_to_json::value; +}; + +template +struct is_compatible_type + : is_compatible_type_impl {}; + +template +struct is_constructible_tuple : std::false_type {}; + +template +struct is_constructible_tuple> : conjunction...> {}; + +// a naive helper to check if a type is an ordered_map (exploits the fact that +// ordered_map inherits capacity() from std::vector) +template +struct is_ordered_map +{ + using one = char; + + struct two + { + char x[2]; // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) + }; + + template static one test( decltype(&C::capacity) ) ; + template static two test(...); + + enum { value = sizeof(test(nullptr)) == sizeof(char) }; // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) +}; + +// to avoid useless casts (see https://github.com/nlohmann/json/issues/2893#issuecomment-889152324) +template < typename T, typename U, enable_if_t < !std::is_same::value, int > = 0 > +T conditional_static_cast(U value) +{ + return static_cast(value); +} + +template::value, int> = 0> +T conditional_static_cast(U value) +{ + return value; +} + +} // namespace detail +} // namespace nlohmann + +// #include + + +namespace nlohmann +{ +namespace detail +{ +template +void from_json(const BasicJsonType& j, typename std::nullptr_t& n) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_null())) + { + JSON_THROW(type_error::create(302, "type must be null, but is " + std::string(j.type_name()), j)); + } + n = nullptr; +} + +// overloads for basic_json template parameters +template < typename BasicJsonType, typename ArithmeticType, + enable_if_t < std::is_arithmetic::value&& + !std::is_same::value, + int > = 0 > +void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val) +{ + switch (static_cast(j)) + { + case value_t::number_unsigned: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::number_integer: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::number_float: + { + val = static_cast(*j.template get_ptr()); + break; + } + + case value_t::null: + case value_t::object: + case value_t::array: + case value_t::string: + case value_t::boolean: + case value_t::binary: + case value_t::discarded: + default: + JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name()), j)); + } +} + +template +void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_boolean())) + { + JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(j.type_name()), j)); + } + b = *j.template get_ptr(); +} + +template +void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_string())) + { + JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j)); + } + s = *j.template get_ptr(); +} + +template < + typename BasicJsonType, typename ConstructibleStringType, + enable_if_t < + is_constructible_string_type::value&& + !std::is_same::value, + int > = 0 > +void from_json(const BasicJsonType& j, ConstructibleStringType& s) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_string())) + { + JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name()), j)); + } + + s = *j.template get_ptr(); +} + +template +void from_json(const BasicJsonType& j, typename BasicJsonType::number_float_t& val) +{ + get_arithmetic_value(j, val); +} + +template +void from_json(const BasicJsonType& j, typename BasicJsonType::number_unsigned_t& val) +{ + get_arithmetic_value(j, val); +} + +template +void from_json(const BasicJsonType& j, typename BasicJsonType::number_integer_t& val) +{ + get_arithmetic_value(j, val); +} + +template::value, int> = 0> +void from_json(const BasicJsonType& j, EnumType& e) +{ + typename std::underlying_type::type val; + get_arithmetic_value(j, val); + e = static_cast(val); +} + +// forward_list doesn't have an insert method +template::value, int> = 0> +void from_json(const BasicJsonType& j, std::forward_list& l) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + l.clear(); + std::transform(j.rbegin(), j.rend(), + std::front_inserter(l), [](const BasicJsonType & i) + { + return i.template get(); + }); +} + +// valarray doesn't have an insert method +template::value, int> = 0> +void from_json(const BasicJsonType& j, std::valarray& l) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + l.resize(j.size()); + std::transform(j.begin(), j.end(), std::begin(l), + [](const BasicJsonType & elem) + { + return elem.template get(); + }); +} + +template +auto from_json(const BasicJsonType& j, T (&arr)[N]) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) +-> decltype(j.template get(), void()) +{ + for (std::size_t i = 0; i < N; ++i) + { + arr[i] = j.at(i).template get(); + } +} + +template +void from_json_array_impl(const BasicJsonType& j, typename BasicJsonType::array_t& arr, priority_tag<3> /*unused*/) +{ + arr = *j.template get_ptr(); +} + +template +auto from_json_array_impl(const BasicJsonType& j, std::array& arr, + priority_tag<2> /*unused*/) +-> decltype(j.template get(), void()) +{ + for (std::size_t i = 0; i < N; ++i) + { + arr[i] = j.at(i).template get(); + } +} + +template::value, + int> = 0> +auto from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, priority_tag<1> /*unused*/) +-> decltype( + arr.reserve(std::declval()), + j.template get(), + void()) +{ + using std::end; + + ConstructibleArrayType ret; + ret.reserve(j.size()); + std::transform(j.begin(), j.end(), + std::inserter(ret, end(ret)), [](const BasicJsonType & i) + { + // get() returns *this, this won't call a from_json + // method when value_type is BasicJsonType + return i.template get(); + }); + arr = std::move(ret); +} + +template::value, + int> = 0> +void from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, + priority_tag<0> /*unused*/) +{ + using std::end; + + ConstructibleArrayType ret; + std::transform( + j.begin(), j.end(), std::inserter(ret, end(ret)), + [](const BasicJsonType & i) + { + // get() returns *this, this won't call a from_json + // method when value_type is BasicJsonType + return i.template get(); + }); + arr = std::move(ret); +} + +template < typename BasicJsonType, typename ConstructibleArrayType, + enable_if_t < + is_constructible_array_type::value&& + !is_constructible_object_type::value&& + !is_constructible_string_type::value&& + !std::is_same::value&& + !is_basic_json::value, + int > = 0 > +auto from_json(const BasicJsonType& j, ConstructibleArrayType& arr) +-> decltype(from_json_array_impl(j, arr, priority_tag<3> {}), +j.template get(), +void()) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + + from_json_array_impl(j, arr, priority_tag<3> {}); +} + +template < typename BasicJsonType, typename T, std::size_t... Idx > +std::array from_json_inplace_array_impl(BasicJsonType&& j, + identity_tag> /*unused*/, index_sequence /*unused*/) +{ + return { { std::forward(j).at(Idx).template get()... } }; +} + +template < typename BasicJsonType, typename T, std::size_t N > +auto from_json(BasicJsonType&& j, identity_tag> tag) +-> decltype(from_json_inplace_array_impl(std::forward(j), tag, make_index_sequence {})) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + + return from_json_inplace_array_impl(std::forward(j), tag, make_index_sequence {}); +} + +template +void from_json(const BasicJsonType& j, typename BasicJsonType::binary_t& bin) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_binary())) + { + JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(j.type_name()), j)); + } + + bin = *j.template get_ptr(); +} + +template::value, int> = 0> +void from_json(const BasicJsonType& j, ConstructibleObjectType& obj) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_object())) + { + JSON_THROW(type_error::create(302, "type must be object, but is " + std::string(j.type_name()), j)); + } + + ConstructibleObjectType ret; + const auto* inner_object = j.template get_ptr(); + using value_type = typename ConstructibleObjectType::value_type; + std::transform( + inner_object->begin(), inner_object->end(), + std::inserter(ret, ret.begin()), + [](typename BasicJsonType::object_t::value_type const & p) + { + return value_type(p.first, p.second.template get()); + }); + obj = std::move(ret); +} + +// overload for arithmetic types, not chosen for basic_json template arguments +// (BooleanType, etc..); note: Is it really necessary to provide explicit +// overloads for boolean_t etc. in case of a custom BooleanType which is not +// an arithmetic type? +template < typename BasicJsonType, typename ArithmeticType, + enable_if_t < + std::is_arithmetic::value&& + !std::is_same::value&& + !std::is_same::value&& + !std::is_same::value&& + !std::is_same::value, + int > = 0 > +void from_json(const BasicJsonType& j, ArithmeticType& val) +{ + switch (static_cast(j)) + { + case value_t::number_unsigned: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::number_integer: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::number_float: + { + val = static_cast(*j.template get_ptr()); + break; + } + case value_t::boolean: + { + val = static_cast(*j.template get_ptr()); + break; + } + + case value_t::null: + case value_t::object: + case value_t::array: + case value_t::string: + case value_t::binary: + case value_t::discarded: + default: + JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name()), j)); + } +} + +template +std::tuple from_json_tuple_impl_base(BasicJsonType&& j, index_sequence /*unused*/) +{ + return std::make_tuple(std::forward(j).at(Idx).template get()...); +} + +template < typename BasicJsonType, class A1, class A2 > +std::pair from_json_tuple_impl(BasicJsonType&& j, identity_tag> /*unused*/, priority_tag<0> /*unused*/) +{ + return {std::forward(j).at(0).template get(), + std::forward(j).at(1).template get()}; +} + +template +void from_json_tuple_impl(BasicJsonType&& j, std::pair& p, priority_tag<1> /*unused*/) +{ + p = from_json_tuple_impl(std::forward(j), identity_tag> {}, priority_tag<0> {}); +} + +template +std::tuple from_json_tuple_impl(BasicJsonType&& j, identity_tag> /*unused*/, priority_tag<2> /*unused*/) +{ + return from_json_tuple_impl_base(std::forward(j), index_sequence_for {}); +} + +template +void from_json_tuple_impl(BasicJsonType&& j, std::tuple& t, priority_tag<3> /*unused*/) +{ + t = from_json_tuple_impl_base(std::forward(j), index_sequence_for {}); +} + +template +auto from_json(BasicJsonType&& j, TupleRelated&& t) +-> decltype(from_json_tuple_impl(std::forward(j), std::forward(t), priority_tag<3> {})) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + + return from_json_tuple_impl(std::forward(j), std::forward(t), priority_tag<3> {}); +} + +template < typename BasicJsonType, typename Key, typename Value, typename Compare, typename Allocator, + typename = enable_if_t < !std::is_constructible < + typename BasicJsonType::string_t, Key >::value >> +void from_json(const BasicJsonType& j, std::map& m) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + m.clear(); + for (const auto& p : j) + { + if (JSON_HEDLEY_UNLIKELY(!p.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name()), j)); + } + m.emplace(p.at(0).template get(), p.at(1).template get()); + } +} + +template < typename BasicJsonType, typename Key, typename Value, typename Hash, typename KeyEqual, typename Allocator, + typename = enable_if_t < !std::is_constructible < + typename BasicJsonType::string_t, Key >::value >> +void from_json(const BasicJsonType& j, std::unordered_map& m) +{ + if (JSON_HEDLEY_UNLIKELY(!j.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name()), j)); + } + m.clear(); + for (const auto& p : j) + { + if (JSON_HEDLEY_UNLIKELY(!p.is_array())) + { + JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name()), j)); + } + m.emplace(p.at(0).template get(), p.at(1).template get()); + } +} + +struct from_json_fn +{ + template + auto operator()(const BasicJsonType& j, T&& val) const + noexcept(noexcept(from_json(j, std::forward(val)))) + -> decltype(from_json(j, std::forward(val))) + { + return from_json(j, std::forward(val)); + } +}; +} // namespace detail + +/// namespace to hold default `from_json` function +/// to see why this is required: +/// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4381.html +namespace // NOLINT(cert-dcl59-cpp,fuchsia-header-anon-namespaces,google-build-namespaces) +{ +constexpr const auto& from_json = detail::static_const::value; // NOLINT(misc-definitions-in-headers) +} // namespace +} // namespace nlohmann + +// #include + + +#include // copy +#include // begin, end +#include // string +#include // tuple, get +#include // is_same, is_constructible, is_floating_point, is_enum, underlying_type +#include // move, forward, declval, pair +#include // valarray +#include // vector + +// #include + + +#include // size_t +#include // input_iterator_tag +#include // string, to_string +#include // tuple_size, get, tuple_element +#include // move + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +template +void int_to_string( string_type& target, std::size_t value ) +{ + // For ADL + using std::to_string; + target = to_string(value); +} +template class iteration_proxy_value +{ + public: + using difference_type = std::ptrdiff_t; + using value_type = iteration_proxy_value; + using pointer = value_type * ; + using reference = value_type & ; + using iterator_category = std::input_iterator_tag; + using string_type = typename std::remove_cv< typename std::remove_reference().key() ) >::type >::type; + + private: + /// the iterator + IteratorType anchor; + /// an index for arrays (used to create key names) + std::size_t array_index = 0; + /// last stringified array index + mutable std::size_t array_index_last = 0; + /// a string representation of the array index + mutable string_type array_index_str = "0"; + /// an empty string (to return a reference for primitive values) + const string_type empty_str{}; + + public: + explicit iteration_proxy_value(IteratorType it) noexcept + : anchor(std::move(it)) + {} + + /// dereference operator (needed for range-based for) + iteration_proxy_value& operator*() + { + return *this; + } + + /// increment operator (needed for range-based for) + iteration_proxy_value& operator++() + { + ++anchor; + ++array_index; + + return *this; + } + + /// equality operator (needed for InputIterator) + bool operator==(const iteration_proxy_value& o) const + { + return anchor == o.anchor; + } + + /// inequality operator (needed for range-based for) + bool operator!=(const iteration_proxy_value& o) const + { + return anchor != o.anchor; + } + + /// return key of the iterator + const string_type& key() const + { + JSON_ASSERT(anchor.m_object != nullptr); + + switch (anchor.m_object->type()) + { + // use integer array index as key + case value_t::array: + { + if (array_index != array_index_last) + { + int_to_string( array_index_str, array_index ); + array_index_last = array_index; + } + return array_index_str; + } + + // use key from the object + case value_t::object: + return anchor.key(); + + // use an empty key for all primitive types + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + return empty_str; + } + } + + /// return value of the iterator + typename IteratorType::reference value() const + { + return anchor.value(); + } +}; + +/// proxy class for the items() function +template class iteration_proxy +{ + private: + /// the container to iterate + typename IteratorType::reference container; + + public: + /// construct iteration proxy from a container + explicit iteration_proxy(typename IteratorType::reference cont) noexcept + : container(cont) {} + + /// return iterator begin (needed for range-based for) + iteration_proxy_value begin() noexcept + { + return iteration_proxy_value(container.begin()); + } + + /// return iterator end (needed for range-based for) + iteration_proxy_value end() noexcept + { + return iteration_proxy_value(container.end()); + } +}; +// Structured Bindings Support +// For further reference see https://blog.tartanllama.xyz/structured-bindings/ +// And see https://github.com/nlohmann/json/pull/1391 +template = 0> +auto get(const nlohmann::detail::iteration_proxy_value& i) -> decltype(i.key()) +{ + return i.key(); +} +// Structured Bindings Support +// For further reference see https://blog.tartanllama.xyz/structured-bindings/ +// And see https://github.com/nlohmann/json/pull/1391 +template = 0> +auto get(const nlohmann::detail::iteration_proxy_value& i) -> decltype(i.value()) +{ + return i.value(); +} +} // namespace detail +} // namespace nlohmann + +// The Addition to the STD Namespace is required to add +// Structured Bindings Support to the iteration_proxy_value class +// For further reference see https://blog.tartanllama.xyz/structured-bindings/ +// And see https://github.com/nlohmann/json/pull/1391 +namespace std +{ +#if defined(__clang__) + // Fix: https://github.com/nlohmann/json/issues/1401 + #pragma clang diagnostic push + #pragma clang diagnostic ignored "-Wmismatched-tags" +#endif +template +class tuple_size<::nlohmann::detail::iteration_proxy_value> + : public std::integral_constant {}; + +template +class tuple_element> +{ + public: + using type = decltype( + get(std::declval < + ::nlohmann::detail::iteration_proxy_value> ())); +}; +#if defined(__clang__) + #pragma clang diagnostic pop +#endif +} // namespace std + +// #include + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +////////////////// +// constructors // +////////////////// + +/* + * Note all external_constructor<>::construct functions need to call + * j.m_value.destroy(j.m_type) to avoid a memory leak in case j contains an + * allocated value (e.g., a string). See bug issue + * https://github.com/nlohmann/json/issues/2865 for more information. + */ + +template struct external_constructor; + +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::boolean; + j.m_value = b; + j.assert_invariant(); + } +}; + +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, const typename BasicJsonType::string_t& s) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::string; + j.m_value = s; + j.assert_invariant(); + } + + template + static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::string; + j.m_value = std::move(s); + j.assert_invariant(); + } + + template < typename BasicJsonType, typename CompatibleStringType, + enable_if_t < !std::is_same::value, + int > = 0 > + static void construct(BasicJsonType& j, const CompatibleStringType& str) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::string; + j.m_value.string = j.template create(str); + j.assert_invariant(); + } +}; + +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, const typename BasicJsonType::binary_t& b) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::binary; + j.m_value = typename BasicJsonType::binary_t(b); + j.assert_invariant(); + } + + template + static void construct(BasicJsonType& j, typename BasicJsonType::binary_t&& b) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::binary; + j.m_value = typename BasicJsonType::binary_t(std::move(b)); + j.assert_invariant(); + } +}; + +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::number_float; + j.m_value = val; + j.assert_invariant(); + } +}; + +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, typename BasicJsonType::number_unsigned_t val) noexcept + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::number_unsigned; + j.m_value = val; + j.assert_invariant(); + } +}; + +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, typename BasicJsonType::number_integer_t val) noexcept + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::number_integer; + j.m_value = val; + j.assert_invariant(); + } +}; + +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, const typename BasicJsonType::array_t& arr) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value = arr; + j.set_parents(); + j.assert_invariant(); + } + + template + static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value = std::move(arr); + j.set_parents(); + j.assert_invariant(); + } + + template < typename BasicJsonType, typename CompatibleArrayType, + enable_if_t < !std::is_same::value, + int > = 0 > + static void construct(BasicJsonType& j, const CompatibleArrayType& arr) + { + using std::begin; + using std::end; + + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value.array = j.template create(begin(arr), end(arr)); + j.set_parents(); + j.assert_invariant(); + } + + template + static void construct(BasicJsonType& j, const std::vector& arr) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value = value_t::array; + j.m_value.array->reserve(arr.size()); + for (const bool x : arr) + { + j.m_value.array->push_back(x); + j.set_parent(j.m_value.array->back()); + } + j.assert_invariant(); + } + + template::value, int> = 0> + static void construct(BasicJsonType& j, const std::valarray& arr) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::array; + j.m_value = value_t::array; + j.m_value.array->resize(arr.size()); + if (arr.size() > 0) + { + std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin()); + } + j.set_parents(); + j.assert_invariant(); + } +}; + +template<> +struct external_constructor +{ + template + static void construct(BasicJsonType& j, const typename BasicJsonType::object_t& obj) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::object; + j.m_value = obj; + j.set_parents(); + j.assert_invariant(); + } + + template + static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj) + { + j.m_value.destroy(j.m_type); + j.m_type = value_t::object; + j.m_value = std::move(obj); + j.set_parents(); + j.assert_invariant(); + } + + template < typename BasicJsonType, typename CompatibleObjectType, + enable_if_t < !std::is_same::value, int > = 0 > + static void construct(BasicJsonType& j, const CompatibleObjectType& obj) + { + using std::begin; + using std::end; + + j.m_value.destroy(j.m_type); + j.m_type = value_t::object; + j.m_value.object = j.template create(begin(obj), end(obj)); + j.set_parents(); + j.assert_invariant(); + } +}; + +///////////// +// to_json // +///////////// + +template::value, int> = 0> +void to_json(BasicJsonType& j, T b) noexcept +{ + external_constructor::construct(j, b); +} + +template::value, int> = 0> +void to_json(BasicJsonType& j, const CompatibleString& s) +{ + external_constructor::construct(j, s); +} + +template +void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s) +{ + external_constructor::construct(j, std::move(s)); +} + +template::value, int> = 0> +void to_json(BasicJsonType& j, FloatType val) noexcept +{ + external_constructor::construct(j, static_cast(val)); +} + +template::value, int> = 0> +void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept +{ + external_constructor::construct(j, static_cast(val)); +} + +template::value, int> = 0> +void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept +{ + external_constructor::construct(j, static_cast(val)); +} + +template::value, int> = 0> +void to_json(BasicJsonType& j, EnumType e) noexcept +{ + using underlying_type = typename std::underlying_type::type; + external_constructor::construct(j, static_cast(e)); +} + +template +void to_json(BasicJsonType& j, const std::vector& e) +{ + external_constructor::construct(j, e); +} + +template < typename BasicJsonType, typename CompatibleArrayType, + enable_if_t < is_compatible_array_type::value&& + !is_compatible_object_type::value&& + !is_compatible_string_type::value&& + !std::is_same::value&& + !is_basic_json::value, + int > = 0 > +void to_json(BasicJsonType& j, const CompatibleArrayType& arr) +{ + external_constructor::construct(j, arr); +} + +template +void to_json(BasicJsonType& j, const typename BasicJsonType::binary_t& bin) +{ + external_constructor::construct(j, bin); +} + +template::value, int> = 0> +void to_json(BasicJsonType& j, const std::valarray& arr) +{ + external_constructor::construct(j, std::move(arr)); +} + +template +void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr) +{ + external_constructor::construct(j, std::move(arr)); +} + +template < typename BasicJsonType, typename CompatibleObjectType, + enable_if_t < is_compatible_object_type::value&& !is_basic_json::value, int > = 0 > +void to_json(BasicJsonType& j, const CompatibleObjectType& obj) +{ + external_constructor::construct(j, obj); +} + +template +void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj) +{ + external_constructor::construct(j, std::move(obj)); +} + +template < + typename BasicJsonType, typename T, std::size_t N, + enable_if_t < !std::is_constructible::value, // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) + int > = 0 > +void to_json(BasicJsonType& j, const T(&arr)[N]) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) +{ + external_constructor::construct(j, arr); +} + +template < typename BasicJsonType, typename T1, typename T2, enable_if_t < std::is_constructible::value&& std::is_constructible::value, int > = 0 > +void to_json(BasicJsonType& j, const std::pair& p) +{ + j = { p.first, p.second }; +} + +// for https://github.com/nlohmann/json/pull/1134 +template>::value, int> = 0> +void to_json(BasicJsonType& j, const T& b) +{ + j = { {b.key(), b.value()} }; +} + +template +void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence /*unused*/) +{ + j = { std::get(t)... }; +} + +template::value, int > = 0> +void to_json(BasicJsonType& j, const T& t) +{ + to_json_tuple_impl(j, t, make_index_sequence::value> {}); +} + +struct to_json_fn +{ + template + auto operator()(BasicJsonType& j, T&& val) const noexcept(noexcept(to_json(j, std::forward(val)))) + -> decltype(to_json(j, std::forward(val)), void()) + { + return to_json(j, std::forward(val)); + } +}; +} // namespace detail + +/// namespace to hold default `to_json` function +/// to see why this is required: +/// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4381.html +namespace // NOLINT(cert-dcl59-cpp,fuchsia-header-anon-namespaces,google-build-namespaces) +{ +constexpr const auto& to_json = detail::static_const::value; // NOLINT(misc-definitions-in-headers) +} // namespace +} // namespace nlohmann + +// #include + +// #include + + +namespace nlohmann +{ + +template +struct adl_serializer +{ + /*! + @brief convert a JSON value to any value type + + This function is usually called by the `get()` function of the + @ref basic_json class (either explicit or via conversion operators). + + @note This function is chosen for default-constructible value types. + + @param[in] j JSON value to read from + @param[in,out] val value to write to + */ + template + static auto from_json(BasicJsonType && j, TargetType& val) noexcept( + noexcept(::nlohmann::from_json(std::forward(j), val))) + -> decltype(::nlohmann::from_json(std::forward(j), val), void()) + { + ::nlohmann::from_json(std::forward(j), val); + } + + /*! + @brief convert a JSON value to any value type + + This function is usually called by the `get()` function of the + @ref basic_json class (either explicit or via conversion operators). + + @note This function is chosen for value types which are not default-constructible. + + @param[in] j JSON value to read from + + @return copy of the JSON value, converted to @a ValueType + */ + template + static auto from_json(BasicJsonType && j) noexcept( + noexcept(::nlohmann::from_json(std::forward(j), detail::identity_tag {}))) + -> decltype(::nlohmann::from_json(std::forward(j), detail::identity_tag {})) + { + return ::nlohmann::from_json(std::forward(j), detail::identity_tag {}); + } + + /*! + @brief convert any value type to a JSON value + + This function is usually called by the constructors of the @ref basic_json + class. + + @param[in,out] j JSON value to write to + @param[in] val value to read from + */ + template + static auto to_json(BasicJsonType& j, TargetType && val) noexcept( + noexcept(::nlohmann::to_json(j, std::forward(val)))) + -> decltype(::nlohmann::to_json(j, std::forward(val)), void()) + { + ::nlohmann::to_json(j, std::forward(val)); + } +}; +} // namespace nlohmann + +// #include + + +#include // uint8_t, uint64_t +#include // tie +#include // move + +namespace nlohmann +{ + +/*! +@brief an internal type for a backed binary type + +This type extends the template parameter @a BinaryType provided to `basic_json` +with a subtype used by BSON and MessagePack. This type exists so that the user +does not have to specify a type themselves with a specific naming scheme in +order to override the binary type. + +@tparam BinaryType container to store bytes (`std::vector` by + default) + +@since version 3.8.0; changed type of subtypes to std::uint64_t in 3.10.0. +*/ +template +class byte_container_with_subtype : public BinaryType +{ + public: + /// the type of the underlying container + using container_type = BinaryType; + /// the type of the subtype + using subtype_type = std::uint64_t; + + byte_container_with_subtype() noexcept(noexcept(container_type())) + : container_type() + {} + + byte_container_with_subtype(const container_type& b) noexcept(noexcept(container_type(b))) + : container_type(b) + {} + + byte_container_with_subtype(container_type&& b) noexcept(noexcept(container_type(std::move(b)))) + : container_type(std::move(b)) + {} + + byte_container_with_subtype(const container_type& b, subtype_type subtype_) noexcept(noexcept(container_type(b))) + : container_type(b) + , m_subtype(subtype_) + , m_has_subtype(true) + {} + + byte_container_with_subtype(container_type&& b, subtype_type subtype_) noexcept(noexcept(container_type(std::move(b)))) + : container_type(std::move(b)) + , m_subtype(subtype_) + , m_has_subtype(true) + {} + + bool operator==(const byte_container_with_subtype& rhs) const + { + return std::tie(static_cast(*this), m_subtype, m_has_subtype) == + std::tie(static_cast(rhs), rhs.m_subtype, rhs.m_has_subtype); + } + + bool operator!=(const byte_container_with_subtype& rhs) const + { + return !(rhs == *this); + } + + /*! + @brief sets the binary subtype + + Sets the binary subtype of the value, also flags a binary JSON value as + having a subtype, which has implications for serialization. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @sa see @ref subtype() -- return the binary subtype + @sa see @ref clear_subtype() -- clears the binary subtype + @sa see @ref has_subtype() -- returns whether or not the binary value has a + subtype + + @since version 3.8.0 + */ + void set_subtype(subtype_type subtype_) noexcept + { + m_subtype = subtype_; + m_has_subtype = true; + } + + /*! + @brief return the binary subtype + + Returns the numerical subtype of the value if it has a subtype. If it does + not have a subtype, this function will return subtype_type(-1) as a sentinel + value. + + @return the numerical subtype of the binary value + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @sa see @ref set_subtype() -- sets the binary subtype + @sa see @ref clear_subtype() -- clears the binary subtype + @sa see @ref has_subtype() -- returns whether or not the binary value has a + subtype + + @since version 3.8.0; fixed return value to properly return + subtype_type(-1) as documented in version 3.10.0 + */ + constexpr subtype_type subtype() const noexcept + { + return m_has_subtype ? m_subtype : subtype_type(-1); + } + + /*! + @brief return whether the value has a subtype + + @return whether the value has a subtype + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @sa see @ref subtype() -- return the binary subtype + @sa see @ref set_subtype() -- sets the binary subtype + @sa see @ref clear_subtype() -- clears the binary subtype + + @since version 3.8.0 + */ + constexpr bool has_subtype() const noexcept + { + return m_has_subtype; + } + + /*! + @brief clears the binary subtype + + Clears the binary subtype and flags the value as not having a subtype, which + has implications for serialization; for instance MessagePack will prefer the + bin family over the ext family. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @sa see @ref subtype() -- return the binary subtype + @sa see @ref set_subtype() -- sets the binary subtype + @sa see @ref has_subtype() -- returns whether or not the binary value has a + subtype + + @since version 3.8.0 + */ + void clear_subtype() noexcept + { + m_subtype = 0; + m_has_subtype = false; + } + + private: + subtype_type m_subtype = 0; + bool m_has_subtype = false; +}; + +} // namespace nlohmann + +// #include + +// #include + +// #include + +// #include + + +#include // uint8_t +#include // size_t +#include // hash + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ + +// boost::hash_combine +inline std::size_t combine(std::size_t seed, std::size_t h) noexcept +{ + seed ^= h + 0x9e3779b9 + (seed << 6U) + (seed >> 2U); + return seed; +} + +/*! +@brief hash a JSON value + +The hash function tries to rely on std::hash where possible. Furthermore, the +type of the JSON value is taken into account to have different hash values for +null, 0, 0U, and false, etc. + +@tparam BasicJsonType basic_json specialization +@param j JSON value to hash +@return hash value of j +*/ +template +std::size_t hash(const BasicJsonType& j) +{ + using string_t = typename BasicJsonType::string_t; + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + + const auto type = static_cast(j.type()); + switch (j.type()) + { + case BasicJsonType::value_t::null: + case BasicJsonType::value_t::discarded: + { + return combine(type, 0); + } + + case BasicJsonType::value_t::object: + { + auto seed = combine(type, j.size()); + for (const auto& element : j.items()) + { + const auto h = std::hash {}(element.key()); + seed = combine(seed, h); + seed = combine(seed, hash(element.value())); + } + return seed; + } + + case BasicJsonType::value_t::array: + { + auto seed = combine(type, j.size()); + for (const auto& element : j) + { + seed = combine(seed, hash(element)); + } + return seed; + } + + case BasicJsonType::value_t::string: + { + const auto h = std::hash {}(j.template get_ref()); + return combine(type, h); + } + + case BasicJsonType::value_t::boolean: + { + const auto h = std::hash {}(j.template get()); + return combine(type, h); + } + + case BasicJsonType::value_t::number_integer: + { + const auto h = std::hash {}(j.template get()); + return combine(type, h); + } + + case BasicJsonType::value_t::number_unsigned: + { + const auto h = std::hash {}(j.template get()); + return combine(type, h); + } + + case BasicJsonType::value_t::number_float: + { + const auto h = std::hash {}(j.template get()); + return combine(type, h); + } + + case BasicJsonType::value_t::binary: + { + auto seed = combine(type, j.get_binary().size()); + const auto h = std::hash {}(j.get_binary().has_subtype()); + seed = combine(seed, h); + seed = combine(seed, static_cast(j.get_binary().subtype())); + for (const auto byte : j.get_binary()) + { + seed = combine(seed, std::hash {}(byte)); + } + return seed; + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + return 0; // LCOV_EXCL_LINE + } +} + +} // namespace detail +} // namespace nlohmann + +// #include + + +#include // generate_n +#include // array +#include // ldexp +#include // size_t +#include // uint8_t, uint16_t, uint32_t, uint64_t +#include // snprintf +#include // memcpy +#include // back_inserter +#include // numeric_limits +#include // char_traits, string +#include // make_pair, move +#include // vector + +// #include + +// #include + + +#include // array +#include // size_t +#include // strlen +#include // begin, end, iterator_traits, random_access_iterator_tag, distance, next +#include // shared_ptr, make_shared, addressof +#include // accumulate +#include // string, char_traits +#include // enable_if, is_base_of, is_pointer, is_integral, remove_pointer +#include // pair, declval + +#ifndef JSON_NO_IO + #include // FILE * + #include // istream +#endif // JSON_NO_IO + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +/// the supported input formats +enum class input_format_t { json, cbor, msgpack, ubjson, bson }; + +//////////////////// +// input adapters // +//////////////////// + +#ifndef JSON_NO_IO +/*! +Input adapter for stdio file access. This adapter read only 1 byte and do not use any + buffer. This adapter is a very low level adapter. +*/ +class file_input_adapter +{ + public: + using char_type = char; + + JSON_HEDLEY_NON_NULL(2) + explicit file_input_adapter(std::FILE* f) noexcept + : m_file(f) + {} + + // make class move-only + file_input_adapter(const file_input_adapter&) = delete; + file_input_adapter(file_input_adapter&&) noexcept = default; + file_input_adapter& operator=(const file_input_adapter&) = delete; + file_input_adapter& operator=(file_input_adapter&&) = delete; + ~file_input_adapter() = default; + + std::char_traits::int_type get_character() noexcept + { + return std::fgetc(m_file); + } + + private: + /// the file pointer to read from + std::FILE* m_file; +}; + + +/*! +Input adapter for a (caching) istream. Ignores a UFT Byte Order Mark at +beginning of input. Does not support changing the underlying std::streambuf +in mid-input. Maintains underlying std::istream and std::streambuf to support +subsequent use of standard std::istream operations to process any input +characters following those used in parsing the JSON input. Clears the +std::istream flags; any input errors (e.g., EOF) will be detected by the first +subsequent call for input from the std::istream. +*/ +class input_stream_adapter +{ + public: + using char_type = char; + + ~input_stream_adapter() + { + // clear stream flags; we use underlying streambuf I/O, do not + // maintain ifstream flags, except eof + if (is != nullptr) + { + is->clear(is->rdstate() & std::ios::eofbit); + } + } + + explicit input_stream_adapter(std::istream& i) + : is(&i), sb(i.rdbuf()) + {} + + // delete because of pointer members + input_stream_adapter(const input_stream_adapter&) = delete; + input_stream_adapter& operator=(input_stream_adapter&) = delete; + input_stream_adapter& operator=(input_stream_adapter&&) = delete; + + input_stream_adapter(input_stream_adapter&& rhs) noexcept + : is(rhs.is), sb(rhs.sb) + { + rhs.is = nullptr; + rhs.sb = nullptr; + } + + // std::istream/std::streambuf use std::char_traits::to_int_type, to + // ensure that std::char_traits::eof() and the character 0xFF do not + // end up as the same value, eg. 0xFFFFFFFF. + std::char_traits::int_type get_character() + { + auto res = sb->sbumpc(); + // set eof manually, as we don't use the istream interface. + if (JSON_HEDLEY_UNLIKELY(res == std::char_traits::eof())) + { + is->clear(is->rdstate() | std::ios::eofbit); + } + return res; + } + + private: + /// the associated input stream + std::istream* is = nullptr; + std::streambuf* sb = nullptr; +}; +#endif // JSON_NO_IO + +// General-purpose iterator-based adapter. It might not be as fast as +// theoretically possible for some containers, but it is extremely versatile. +template +class iterator_input_adapter +{ + public: + using char_type = typename std::iterator_traits::value_type; + + iterator_input_adapter(IteratorType first, IteratorType last) + : current(std::move(first)), end(std::move(last)) + {} + + typename std::char_traits::int_type get_character() + { + if (JSON_HEDLEY_LIKELY(current != end)) + { + auto result = std::char_traits::to_int_type(*current); + std::advance(current, 1); + return result; + } + + return std::char_traits::eof(); + } + + private: + IteratorType current; + IteratorType end; + + template + friend struct wide_string_input_helper; + + bool empty() const + { + return current == end; + } +}; + + +template +struct wide_string_input_helper; + +template +struct wide_string_input_helper +{ + // UTF-32 + static void fill_buffer(BaseInputAdapter& input, + std::array::int_type, 4>& utf8_bytes, + size_t& utf8_bytes_index, + size_t& utf8_bytes_filled) + { + utf8_bytes_index = 0; + + if (JSON_HEDLEY_UNLIKELY(input.empty())) + { + utf8_bytes[0] = std::char_traits::eof(); + utf8_bytes_filled = 1; + } + else + { + // get the current character + const auto wc = input.get_character(); + + // UTF-32 to UTF-8 encoding + if (wc < 0x80) + { + utf8_bytes[0] = static_cast::int_type>(wc); + utf8_bytes_filled = 1; + } + else if (wc <= 0x7FF) + { + utf8_bytes[0] = static_cast::int_type>(0xC0u | ((static_cast(wc) >> 6u) & 0x1Fu)); + utf8_bytes[1] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 2; + } + else if (wc <= 0xFFFF) + { + utf8_bytes[0] = static_cast::int_type>(0xE0u | ((static_cast(wc) >> 12u) & 0x0Fu)); + utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); + utf8_bytes[2] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 3; + } + else if (wc <= 0x10FFFF) + { + utf8_bytes[0] = static_cast::int_type>(0xF0u | ((static_cast(wc) >> 18u) & 0x07u)); + utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 12u) & 0x3Fu)); + utf8_bytes[2] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); + utf8_bytes[3] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 4; + } + else + { + // unknown character + utf8_bytes[0] = static_cast::int_type>(wc); + utf8_bytes_filled = 1; + } + } + } +}; + +template +struct wide_string_input_helper +{ + // UTF-16 + static void fill_buffer(BaseInputAdapter& input, + std::array::int_type, 4>& utf8_bytes, + size_t& utf8_bytes_index, + size_t& utf8_bytes_filled) + { + utf8_bytes_index = 0; + + if (JSON_HEDLEY_UNLIKELY(input.empty())) + { + utf8_bytes[0] = std::char_traits::eof(); + utf8_bytes_filled = 1; + } + else + { + // get the current character + const auto wc = input.get_character(); + + // UTF-16 to UTF-8 encoding + if (wc < 0x80) + { + utf8_bytes[0] = static_cast::int_type>(wc); + utf8_bytes_filled = 1; + } + else if (wc <= 0x7FF) + { + utf8_bytes[0] = static_cast::int_type>(0xC0u | ((static_cast(wc) >> 6u))); + utf8_bytes[1] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 2; + } + else if (0xD800 > wc || wc >= 0xE000) + { + utf8_bytes[0] = static_cast::int_type>(0xE0u | ((static_cast(wc) >> 12u))); + utf8_bytes[1] = static_cast::int_type>(0x80u | ((static_cast(wc) >> 6u) & 0x3Fu)); + utf8_bytes[2] = static_cast::int_type>(0x80u | (static_cast(wc) & 0x3Fu)); + utf8_bytes_filled = 3; + } + else + { + if (JSON_HEDLEY_UNLIKELY(!input.empty())) + { + const auto wc2 = static_cast(input.get_character()); + const auto charcode = 0x10000u + (((static_cast(wc) & 0x3FFu) << 10u) | (wc2 & 0x3FFu)); + utf8_bytes[0] = static_cast::int_type>(0xF0u | (charcode >> 18u)); + utf8_bytes[1] = static_cast::int_type>(0x80u | ((charcode >> 12u) & 0x3Fu)); + utf8_bytes[2] = static_cast::int_type>(0x80u | ((charcode >> 6u) & 0x3Fu)); + utf8_bytes[3] = static_cast::int_type>(0x80u | (charcode & 0x3Fu)); + utf8_bytes_filled = 4; + } + else + { + utf8_bytes[0] = static_cast::int_type>(wc); + utf8_bytes_filled = 1; + } + } + } + } +}; + +// Wraps another input apdater to convert wide character types into individual bytes. +template +class wide_string_input_adapter +{ + public: + using char_type = char; + + wide_string_input_adapter(BaseInputAdapter base) + : base_adapter(base) {} + + typename std::char_traits::int_type get_character() noexcept + { + // check if buffer needs to be filled + if (utf8_bytes_index == utf8_bytes_filled) + { + fill_buffer(); + + JSON_ASSERT(utf8_bytes_filled > 0); + JSON_ASSERT(utf8_bytes_index == 0); + } + + // use buffer + JSON_ASSERT(utf8_bytes_filled > 0); + JSON_ASSERT(utf8_bytes_index < utf8_bytes_filled); + return utf8_bytes[utf8_bytes_index++]; + } + + private: + BaseInputAdapter base_adapter; + + template + void fill_buffer() + { + wide_string_input_helper::fill_buffer(base_adapter, utf8_bytes, utf8_bytes_index, utf8_bytes_filled); + } + + /// a buffer for UTF-8 bytes + std::array::int_type, 4> utf8_bytes = {{0, 0, 0, 0}}; + + /// index to the utf8_codes array for the next valid byte + std::size_t utf8_bytes_index = 0; + /// number of valid bytes in the utf8_codes array + std::size_t utf8_bytes_filled = 0; +}; + + +template +struct iterator_input_adapter_factory +{ + using iterator_type = IteratorType; + using char_type = typename std::iterator_traits::value_type; + using adapter_type = iterator_input_adapter; + + static adapter_type create(IteratorType first, IteratorType last) + { + return adapter_type(std::move(first), std::move(last)); + } +}; + +template +struct is_iterator_of_multibyte +{ + using value_type = typename std::iterator_traits::value_type; + enum + { + value = sizeof(value_type) > 1 + }; +}; + +template +struct iterator_input_adapter_factory::value>> +{ + using iterator_type = IteratorType; + using char_type = typename std::iterator_traits::value_type; + using base_adapter_type = iterator_input_adapter; + using adapter_type = wide_string_input_adapter; + + static adapter_type create(IteratorType first, IteratorType last) + { + return adapter_type(base_adapter_type(std::move(first), std::move(last))); + } +}; + +// General purpose iterator-based input +template +typename iterator_input_adapter_factory::adapter_type input_adapter(IteratorType first, IteratorType last) +{ + using factory_type = iterator_input_adapter_factory; + return factory_type::create(first, last); +} + +// Convenience shorthand from container to iterator +// Enables ADL on begin(container) and end(container) +// Encloses the using declarations in namespace for not to leak them to outside scope + +namespace container_input_adapter_factory_impl +{ + +using std::begin; +using std::end; + +template +struct container_input_adapter_factory {}; + +template +struct container_input_adapter_factory< ContainerType, + void_t()), end(std::declval()))>> + { + using adapter_type = decltype(input_adapter(begin(std::declval()), end(std::declval()))); + + static adapter_type create(const ContainerType& container) +{ + return input_adapter(begin(container), end(container)); +} + }; + +} // namespace container_input_adapter_factory_impl + +template +typename container_input_adapter_factory_impl::container_input_adapter_factory::adapter_type input_adapter(const ContainerType& container) +{ + return container_input_adapter_factory_impl::container_input_adapter_factory::create(container); +} + +#ifndef JSON_NO_IO +// Special cases with fast paths +inline file_input_adapter input_adapter(std::FILE* file) +{ + return file_input_adapter(file); +} + +inline input_stream_adapter input_adapter(std::istream& stream) +{ + return input_stream_adapter(stream); +} + +inline input_stream_adapter input_adapter(std::istream&& stream) +{ + return input_stream_adapter(stream); +} +#endif // JSON_NO_IO + +using contiguous_bytes_input_adapter = decltype(input_adapter(std::declval(), std::declval())); + +// Null-delimited strings, and the like. +template < typename CharT, + typename std::enable_if < + std::is_pointer::value&& + !std::is_array::value&& + std::is_integral::type>::value&& + sizeof(typename std::remove_pointer::type) == 1, + int >::type = 0 > +contiguous_bytes_input_adapter input_adapter(CharT b) +{ + auto length = std::strlen(reinterpret_cast(b)); + const auto* ptr = reinterpret_cast(b); + return input_adapter(ptr, ptr + length); +} + +template +auto input_adapter(T (&array)[N]) -> decltype(input_adapter(array, array + N)) // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) +{ + return input_adapter(array, array + N); +} + +// This class only handles inputs of input_buffer_adapter type. +// It's required so that expressions like {ptr, len} can be implicitely casted +// to the correct adapter. +class span_input_adapter +{ + public: + template < typename CharT, + typename std::enable_if < + std::is_pointer::value&& + std::is_integral::type>::value&& + sizeof(typename std::remove_pointer::type) == 1, + int >::type = 0 > + span_input_adapter(CharT b, std::size_t l) + : ia(reinterpret_cast(b), reinterpret_cast(b) + l) {} + + template::iterator_category, std::random_access_iterator_tag>::value, + int>::type = 0> + span_input_adapter(IteratorType first, IteratorType last) + : ia(input_adapter(first, last)) {} + + contiguous_bytes_input_adapter&& get() + { + return std::move(ia); // NOLINT(hicpp-move-const-arg,performance-move-const-arg) + } + + private: + contiguous_bytes_input_adapter ia; +}; +} // namespace detail +} // namespace nlohmann + +// #include + + +#include +#include // string +#include // move +#include // vector + +// #include + +// #include + + +namespace nlohmann +{ + +/*! +@brief SAX interface + +This class describes the SAX interface used by @ref nlohmann::json::sax_parse. +Each function is called in different situations while the input is parsed. The +boolean return value informs the parser whether to continue processing the +input. +*/ +template +struct json_sax +{ + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + + /*! + @brief a null value was read + @return whether parsing should proceed + */ + virtual bool null() = 0; + + /*! + @brief a boolean value was read + @param[in] val boolean value + @return whether parsing should proceed + */ + virtual bool boolean(bool val) = 0; + + /*! + @brief an integer number was read + @param[in] val integer value + @return whether parsing should proceed + */ + virtual bool number_integer(number_integer_t val) = 0; + + /*! + @brief an unsigned integer number was read + @param[in] val unsigned integer value + @return whether parsing should proceed + */ + virtual bool number_unsigned(number_unsigned_t val) = 0; + + /*! + @brief an floating-point number was read + @param[in] val floating-point value + @param[in] s raw token value + @return whether parsing should proceed + */ + virtual bool number_float(number_float_t val, const string_t& s) = 0; + + /*! + @brief a string was read + @param[in] val string value + @return whether parsing should proceed + @note It is safe to move the passed string. + */ + virtual bool string(string_t& val) = 0; + + /*! + @brief a binary string was read + @param[in] val binary value + @return whether parsing should proceed + @note It is safe to move the passed binary. + */ + virtual bool binary(binary_t& val) = 0; + + /*! + @brief the beginning of an object was read + @param[in] elements number of object elements or -1 if unknown + @return whether parsing should proceed + @note binary formats may report the number of elements + */ + virtual bool start_object(std::size_t elements) = 0; + + /*! + @brief an object key was read + @param[in] val object key + @return whether parsing should proceed + @note It is safe to move the passed string. + */ + virtual bool key(string_t& val) = 0; + + /*! + @brief the end of an object was read + @return whether parsing should proceed + */ + virtual bool end_object() = 0; + + /*! + @brief the beginning of an array was read + @param[in] elements number of array elements or -1 if unknown + @return whether parsing should proceed + @note binary formats may report the number of elements + */ + virtual bool start_array(std::size_t elements) = 0; + + /*! + @brief the end of an array was read + @return whether parsing should proceed + */ + virtual bool end_array() = 0; + + /*! + @brief a parse error occurred + @param[in] position the position in the input where the error occurs + @param[in] last_token the last read token + @param[in] ex an exception object describing the error + @return whether parsing should proceed (must return false) + */ + virtual bool parse_error(std::size_t position, + const std::string& last_token, + const detail::exception& ex) = 0; + + json_sax() = default; + json_sax(const json_sax&) = default; + json_sax(json_sax&&) noexcept = default; + json_sax& operator=(const json_sax&) = default; + json_sax& operator=(json_sax&&) noexcept = default; + virtual ~json_sax() = default; +}; + + +namespace detail +{ +/*! +@brief SAX implementation to create a JSON value from SAX events + +This class implements the @ref json_sax interface and processes the SAX events +to create a JSON value which makes it basically a DOM parser. The structure or +hierarchy of the JSON value is managed by the stack `ref_stack` which contains +a pointer to the respective array or object for each recursion depth. + +After successful parsing, the value that is passed by reference to the +constructor contains the parsed value. + +@tparam BasicJsonType the JSON type +*/ +template +class json_sax_dom_parser +{ + public: + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + + /*! + @param[in,out] r reference to a JSON value that is manipulated while + parsing + @param[in] allow_exceptions_ whether parse errors yield exceptions + */ + explicit json_sax_dom_parser(BasicJsonType& r, const bool allow_exceptions_ = true) + : root(r), allow_exceptions(allow_exceptions_) + {} + + // make class move-only + json_sax_dom_parser(const json_sax_dom_parser&) = delete; + json_sax_dom_parser(json_sax_dom_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + json_sax_dom_parser& operator=(const json_sax_dom_parser&) = delete; + json_sax_dom_parser& operator=(json_sax_dom_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + ~json_sax_dom_parser() = default; + + bool null() + { + handle_value(nullptr); + return true; + } + + bool boolean(bool val) + { + handle_value(val); + return true; + } + + bool number_integer(number_integer_t val) + { + handle_value(val); + return true; + } + + bool number_unsigned(number_unsigned_t val) + { + handle_value(val); + return true; + } + + bool number_float(number_float_t val, const string_t& /*unused*/) + { + handle_value(val); + return true; + } + + bool string(string_t& val) + { + handle_value(val); + return true; + } + + bool binary(binary_t& val) + { + handle_value(std::move(val)); + return true; + } + + bool start_object(std::size_t len) + { + ref_stack.push_back(handle_value(BasicJsonType::value_t::object)); + + if (JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size())) + { + JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len), *ref_stack.back())); + } + + return true; + } + + bool key(string_t& val) + { + // add null at given key and store the reference for later + object_element = &(ref_stack.back()->m_value.object->operator[](val)); + return true; + } + + bool end_object() + { + ref_stack.back()->set_parents(); + ref_stack.pop_back(); + return true; + } + + bool start_array(std::size_t len) + { + ref_stack.push_back(handle_value(BasicJsonType::value_t::array)); + + if (JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size())) + { + JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len), *ref_stack.back())); + } + + return true; + } + + bool end_array() + { + ref_stack.back()->set_parents(); + ref_stack.pop_back(); + return true; + } + + template + bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, + const Exception& ex) + { + errored = true; + static_cast(ex); + if (allow_exceptions) + { + JSON_THROW(ex); + } + return false; + } + + constexpr bool is_errored() const + { + return errored; + } + + private: + /*! + @invariant If the ref stack is empty, then the passed value will be the new + root. + @invariant If the ref stack contains a value, then it is an array or an + object to which we can add elements + */ + template + JSON_HEDLEY_RETURNS_NON_NULL + BasicJsonType* handle_value(Value&& v) + { + if (ref_stack.empty()) + { + root = BasicJsonType(std::forward(v)); + return &root; + } + + JSON_ASSERT(ref_stack.back()->is_array() || ref_stack.back()->is_object()); + + if (ref_stack.back()->is_array()) + { + ref_stack.back()->m_value.array->emplace_back(std::forward(v)); + return &(ref_stack.back()->m_value.array->back()); + } + + JSON_ASSERT(ref_stack.back()->is_object()); + JSON_ASSERT(object_element); + *object_element = BasicJsonType(std::forward(v)); + return object_element; + } + + /// the parsed JSON value + BasicJsonType& root; + /// stack to model hierarchy of values + std::vector ref_stack {}; + /// helper to hold the reference for the next object element + BasicJsonType* object_element = nullptr; + /// whether a syntax error occurred + bool errored = false; + /// whether to throw exceptions in case of errors + const bool allow_exceptions = true; +}; + +template +class json_sax_dom_callback_parser +{ + public: + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using parser_callback_t = typename BasicJsonType::parser_callback_t; + using parse_event_t = typename BasicJsonType::parse_event_t; + + json_sax_dom_callback_parser(BasicJsonType& r, + const parser_callback_t cb, + const bool allow_exceptions_ = true) + : root(r), callback(cb), allow_exceptions(allow_exceptions_) + { + keep_stack.push_back(true); + } + + // make class move-only + json_sax_dom_callback_parser(const json_sax_dom_callback_parser&) = delete; + json_sax_dom_callback_parser(json_sax_dom_callback_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + json_sax_dom_callback_parser& operator=(const json_sax_dom_callback_parser&) = delete; + json_sax_dom_callback_parser& operator=(json_sax_dom_callback_parser&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + ~json_sax_dom_callback_parser() = default; + + bool null() + { + handle_value(nullptr); + return true; + } + + bool boolean(bool val) + { + handle_value(val); + return true; + } + + bool number_integer(number_integer_t val) + { + handle_value(val); + return true; + } + + bool number_unsigned(number_unsigned_t val) + { + handle_value(val); + return true; + } + + bool number_float(number_float_t val, const string_t& /*unused*/) + { + handle_value(val); + return true; + } + + bool string(string_t& val) + { + handle_value(val); + return true; + } + + bool binary(binary_t& val) + { + handle_value(std::move(val)); + return true; + } + + bool start_object(std::size_t len) + { + // check callback for object start + const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::object_start, discarded); + keep_stack.push_back(keep); + + auto val = handle_value(BasicJsonType::value_t::object, true); + ref_stack.push_back(val.second); + + // check object limit + if (ref_stack.back() && JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size())) + { + JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len), *ref_stack.back())); + } + + return true; + } + + bool key(string_t& val) + { + BasicJsonType k = BasicJsonType(val); + + // check callback for key + const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::key, k); + key_keep_stack.push_back(keep); + + // add discarded value at given key and store the reference for later + if (keep && ref_stack.back()) + { + object_element = &(ref_stack.back()->m_value.object->operator[](val) = discarded); + } + + return true; + } + + bool end_object() + { + if (ref_stack.back()) + { + if (!callback(static_cast(ref_stack.size()) - 1, parse_event_t::object_end, *ref_stack.back())) + { + // discard object + *ref_stack.back() = discarded; + } + else + { + ref_stack.back()->set_parents(); + } + } + + JSON_ASSERT(!ref_stack.empty()); + JSON_ASSERT(!keep_stack.empty()); + ref_stack.pop_back(); + keep_stack.pop_back(); + + if (!ref_stack.empty() && ref_stack.back() && ref_stack.back()->is_structured()) + { + // remove discarded value + for (auto it = ref_stack.back()->begin(); it != ref_stack.back()->end(); ++it) + { + if (it->is_discarded()) + { + ref_stack.back()->erase(it); + break; + } + } + } + + return true; + } + + bool start_array(std::size_t len) + { + const bool keep = callback(static_cast(ref_stack.size()), parse_event_t::array_start, discarded); + keep_stack.push_back(keep); + + auto val = handle_value(BasicJsonType::value_t::array, true); + ref_stack.push_back(val.second); + + // check array limit + if (ref_stack.back() && JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) && len > ref_stack.back()->max_size())) + { + JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len), *ref_stack.back())); + } + + return true; + } + + bool end_array() + { + bool keep = true; + + if (ref_stack.back()) + { + keep = callback(static_cast(ref_stack.size()) - 1, parse_event_t::array_end, *ref_stack.back()); + if (keep) + { + ref_stack.back()->set_parents(); + } + else + { + // discard array + *ref_stack.back() = discarded; + } + } + + JSON_ASSERT(!ref_stack.empty()); + JSON_ASSERT(!keep_stack.empty()); + ref_stack.pop_back(); + keep_stack.pop_back(); + + // remove discarded value + if (!keep && !ref_stack.empty() && ref_stack.back()->is_array()) + { + ref_stack.back()->m_value.array->pop_back(); + } + + return true; + } + + template + bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, + const Exception& ex) + { + errored = true; + static_cast(ex); + if (allow_exceptions) + { + JSON_THROW(ex); + } + return false; + } + + constexpr bool is_errored() const + { + return errored; + } + + private: + /*! + @param[in] v value to add to the JSON value we build during parsing + @param[in] skip_callback whether we should skip calling the callback + function; this is required after start_array() and + start_object() SAX events, because otherwise we would call the + callback function with an empty array or object, respectively. + + @invariant If the ref stack is empty, then the passed value will be the new + root. + @invariant If the ref stack contains a value, then it is an array or an + object to which we can add elements + + @return pair of boolean (whether value should be kept) and pointer (to the + passed value in the ref_stack hierarchy; nullptr if not kept) + */ + template + std::pair handle_value(Value&& v, const bool skip_callback = false) + { + JSON_ASSERT(!keep_stack.empty()); + + // do not handle this value if we know it would be added to a discarded + // container + if (!keep_stack.back()) + { + return {false, nullptr}; + } + + // create value + auto value = BasicJsonType(std::forward(v)); + + // check callback + const bool keep = skip_callback || callback(static_cast(ref_stack.size()), parse_event_t::value, value); + + // do not handle this value if we just learnt it shall be discarded + if (!keep) + { + return {false, nullptr}; + } + + if (ref_stack.empty()) + { + root = std::move(value); + return {true, &root}; + } + + // skip this value if we already decided to skip the parent + // (https://github.com/nlohmann/json/issues/971#issuecomment-413678360) + if (!ref_stack.back()) + { + return {false, nullptr}; + } + + // we now only expect arrays and objects + JSON_ASSERT(ref_stack.back()->is_array() || ref_stack.back()->is_object()); + + // array + if (ref_stack.back()->is_array()) + { + ref_stack.back()->m_value.array->emplace_back(std::move(value)); + return {true, &(ref_stack.back()->m_value.array->back())}; + } + + // object + JSON_ASSERT(ref_stack.back()->is_object()); + // check if we should store an element for the current key + JSON_ASSERT(!key_keep_stack.empty()); + const bool store_element = key_keep_stack.back(); + key_keep_stack.pop_back(); + + if (!store_element) + { + return {false, nullptr}; + } + + JSON_ASSERT(object_element); + *object_element = std::move(value); + return {true, object_element}; + } + + /// the parsed JSON value + BasicJsonType& root; + /// stack to model hierarchy of values + std::vector ref_stack {}; + /// stack to manage which values to keep + std::vector keep_stack {}; + /// stack to manage which object keys to keep + std::vector key_keep_stack {}; + /// helper to hold the reference for the next object element + BasicJsonType* object_element = nullptr; + /// whether a syntax error occurred + bool errored = false; + /// callback function + const parser_callback_t callback = nullptr; + /// whether to throw exceptions in case of errors + const bool allow_exceptions = true; + /// a discarded value for the callback + BasicJsonType discarded = BasicJsonType::value_t::discarded; +}; + +template +class json_sax_acceptor +{ + public: + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + + bool null() + { + return true; + } + + bool boolean(bool /*unused*/) + { + return true; + } + + bool number_integer(number_integer_t /*unused*/) + { + return true; + } + + bool number_unsigned(number_unsigned_t /*unused*/) + { + return true; + } + + bool number_float(number_float_t /*unused*/, const string_t& /*unused*/) + { + return true; + } + + bool string(string_t& /*unused*/) + { + return true; + } + + bool binary(binary_t& /*unused*/) + { + return true; + } + + bool start_object(std::size_t /*unused*/ = std::size_t(-1)) + { + return true; + } + + bool key(string_t& /*unused*/) + { + return true; + } + + bool end_object() + { + return true; + } + + bool start_array(std::size_t /*unused*/ = std::size_t(-1)) + { + return true; + } + + bool end_array() + { + return true; + } + + bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, const detail::exception& /*unused*/) + { + return false; + } +}; +} // namespace detail + +} // namespace nlohmann + +// #include + + +#include // array +#include // localeconv +#include // size_t +#include // snprintf +#include // strtof, strtod, strtold, strtoll, strtoull +#include // initializer_list +#include // char_traits, string +#include // move +#include // vector + +// #include + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +/////////// +// lexer // +/////////// + +template +class lexer_base +{ + public: + /// token types for the parser + enum class token_type + { + uninitialized, ///< indicating the scanner is uninitialized + literal_true, ///< the `true` literal + literal_false, ///< the `false` literal + literal_null, ///< the `null` literal + value_string, ///< a string -- use get_string() for actual value + value_unsigned, ///< an unsigned integer -- use get_number_unsigned() for actual value + value_integer, ///< a signed integer -- use get_number_integer() for actual value + value_float, ///< an floating point number -- use get_number_float() for actual value + begin_array, ///< the character for array begin `[` + begin_object, ///< the character for object begin `{` + end_array, ///< the character for array end `]` + end_object, ///< the character for object end `}` + name_separator, ///< the name separator `:` + value_separator, ///< the value separator `,` + parse_error, ///< indicating a parse error + end_of_input, ///< indicating the end of the input buffer + literal_or_value ///< a literal or the begin of a value (only for diagnostics) + }; + + /// return name of values of type token_type (only used for errors) + JSON_HEDLEY_RETURNS_NON_NULL + JSON_HEDLEY_CONST + static const char* token_type_name(const token_type t) noexcept + { + switch (t) + { + case token_type::uninitialized: + return ""; + case token_type::literal_true: + return "true literal"; + case token_type::literal_false: + return "false literal"; + case token_type::literal_null: + return "null literal"; + case token_type::value_string: + return "string literal"; + case token_type::value_unsigned: + case token_type::value_integer: + case token_type::value_float: + return "number literal"; + case token_type::begin_array: + return "'['"; + case token_type::begin_object: + return "'{'"; + case token_type::end_array: + return "']'"; + case token_type::end_object: + return "'}'"; + case token_type::name_separator: + return "':'"; + case token_type::value_separator: + return "','"; + case token_type::parse_error: + return ""; + case token_type::end_of_input: + return "end of input"; + case token_type::literal_or_value: + return "'[', '{', or a literal"; + // LCOV_EXCL_START + default: // catch non-enum values + return "unknown token"; + // LCOV_EXCL_STOP + } + } +}; +/*! +@brief lexical analysis + +This class organizes the lexical analysis during JSON deserialization. +*/ +template +class lexer : public lexer_base +{ + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using char_type = typename InputAdapterType::char_type; + using char_int_type = typename std::char_traits::int_type; + + public: + using token_type = typename lexer_base::token_type; + + explicit lexer(InputAdapterType&& adapter, bool ignore_comments_ = false) noexcept + : ia(std::move(adapter)) + , ignore_comments(ignore_comments_) + , decimal_point_char(static_cast(get_decimal_point())) + {} + + // delete because of pointer members + lexer(const lexer&) = delete; + lexer(lexer&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + lexer& operator=(lexer&) = delete; + lexer& operator=(lexer&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + ~lexer() = default; + + private: + ///////////////////// + // locales + ///////////////////// + + /// return the locale-dependent decimal point + JSON_HEDLEY_PURE + static char get_decimal_point() noexcept + { + const auto* loc = localeconv(); + JSON_ASSERT(loc != nullptr); + return (loc->decimal_point == nullptr) ? '.' : *(loc->decimal_point); + } + + ///////////////////// + // scan functions + ///////////////////// + + /*! + @brief get codepoint from 4 hex characters following `\u` + + For input "\u c1 c2 c3 c4" the codepoint is: + (c1 * 0x1000) + (c2 * 0x0100) + (c3 * 0x0010) + c4 + = (c1 << 12) + (c2 << 8) + (c3 << 4) + (c4 << 0) + + Furthermore, the possible characters '0'..'9', 'A'..'F', and 'a'..'f' + must be converted to the integers 0x0..0x9, 0xA..0xF, 0xA..0xF, resp. The + conversion is done by subtracting the offset (0x30, 0x37, and 0x57) + between the ASCII value of the character and the desired integer value. + + @return codepoint (0x0000..0xFFFF) or -1 in case of an error (e.g. EOF or + non-hex character) + */ + int get_codepoint() + { + // this function only makes sense after reading `\u` + JSON_ASSERT(current == 'u'); + int codepoint = 0; + + const auto factors = { 12u, 8u, 4u, 0u }; + for (const auto factor : factors) + { + get(); + + if (current >= '0' && current <= '9') + { + codepoint += static_cast((static_cast(current) - 0x30u) << factor); + } + else if (current >= 'A' && current <= 'F') + { + codepoint += static_cast((static_cast(current) - 0x37u) << factor); + } + else if (current >= 'a' && current <= 'f') + { + codepoint += static_cast((static_cast(current) - 0x57u) << factor); + } + else + { + return -1; + } + } + + JSON_ASSERT(0x0000 <= codepoint && codepoint <= 0xFFFF); + return codepoint; + } + + /*! + @brief check if the next byte(s) are inside a given range + + Adds the current byte and, for each passed range, reads a new byte and + checks if it is inside the range. If a violation was detected, set up an + error message and return false. Otherwise, return true. + + @param[in] ranges list of integers; interpreted as list of pairs of + inclusive lower and upper bound, respectively + + @pre The passed list @a ranges must have 2, 4, or 6 elements; that is, + 1, 2, or 3 pairs. This precondition is enforced by an assertion. + + @return true if and only if no range violation was detected + */ + bool next_byte_in_range(std::initializer_list ranges) + { + JSON_ASSERT(ranges.size() == 2 || ranges.size() == 4 || ranges.size() == 6); + add(current); + + for (auto range = ranges.begin(); range != ranges.end(); ++range) + { + get(); + if (JSON_HEDLEY_LIKELY(*range <= current && current <= *(++range))) + { + add(current); + } + else + { + error_message = "invalid string: ill-formed UTF-8 byte"; + return false; + } + } + + return true; + } + + /*! + @brief scan a string literal + + This function scans a string according to Sect. 7 of RFC 8259. While + scanning, bytes are escaped and copied into buffer token_buffer. Then the + function returns successfully, token_buffer is *not* null-terminated (as it + may contain \0 bytes), and token_buffer.size() is the number of bytes in the + string. + + @return token_type::value_string if string could be successfully scanned, + token_type::parse_error otherwise + + @note In case of errors, variable error_message contains a textual + description. + */ + token_type scan_string() + { + // reset token_buffer (ignore opening quote) + reset(); + + // we entered the function by reading an open quote + JSON_ASSERT(current == '\"'); + + while (true) + { + // get next character + switch (get()) + { + // end of file while parsing string + case std::char_traits::eof(): + { + error_message = "invalid string: missing closing quote"; + return token_type::parse_error; + } + + // closing quote + case '\"': + { + return token_type::value_string; + } + + // escapes + case '\\': + { + switch (get()) + { + // quotation mark + case '\"': + add('\"'); + break; + // reverse solidus + case '\\': + add('\\'); + break; + // solidus + case '/': + add('/'); + break; + // backspace + case 'b': + add('\b'); + break; + // form feed + case 'f': + add('\f'); + break; + // line feed + case 'n': + add('\n'); + break; + // carriage return + case 'r': + add('\r'); + break; + // tab + case 't': + add('\t'); + break; + + // unicode escapes + case 'u': + { + const int codepoint1 = get_codepoint(); + int codepoint = codepoint1; // start with codepoint1 + + if (JSON_HEDLEY_UNLIKELY(codepoint1 == -1)) + { + error_message = "invalid string: '\\u' must be followed by 4 hex digits"; + return token_type::parse_error; + } + + // check if code point is a high surrogate + if (0xD800 <= codepoint1 && codepoint1 <= 0xDBFF) + { + // expect next \uxxxx entry + if (JSON_HEDLEY_LIKELY(get() == '\\' && get() == 'u')) + { + const int codepoint2 = get_codepoint(); + + if (JSON_HEDLEY_UNLIKELY(codepoint2 == -1)) + { + error_message = "invalid string: '\\u' must be followed by 4 hex digits"; + return token_type::parse_error; + } + + // check if codepoint2 is a low surrogate + if (JSON_HEDLEY_LIKELY(0xDC00 <= codepoint2 && codepoint2 <= 0xDFFF)) + { + // overwrite codepoint + codepoint = static_cast( + // high surrogate occupies the most significant 22 bits + (static_cast(codepoint1) << 10u) + // low surrogate occupies the least significant 15 bits + + static_cast(codepoint2) + // there is still the 0xD800, 0xDC00 and 0x10000 noise + // in the result so we have to subtract with: + // (0xD800 << 10) + DC00 - 0x10000 = 0x35FDC00 + - 0x35FDC00u); + } + else + { + error_message = "invalid string: surrogate U+D800..U+DBFF must be followed by U+DC00..U+DFFF"; + return token_type::parse_error; + } + } + else + { + error_message = "invalid string: surrogate U+D800..U+DBFF must be followed by U+DC00..U+DFFF"; + return token_type::parse_error; + } + } + else + { + if (JSON_HEDLEY_UNLIKELY(0xDC00 <= codepoint1 && codepoint1 <= 0xDFFF)) + { + error_message = "invalid string: surrogate U+DC00..U+DFFF must follow U+D800..U+DBFF"; + return token_type::parse_error; + } + } + + // result of the above calculation yields a proper codepoint + JSON_ASSERT(0x00 <= codepoint && codepoint <= 0x10FFFF); + + // translate codepoint into bytes + if (codepoint < 0x80) + { + // 1-byte characters: 0xxxxxxx (ASCII) + add(static_cast(codepoint)); + } + else if (codepoint <= 0x7FF) + { + // 2-byte characters: 110xxxxx 10xxxxxx + add(static_cast(0xC0u | (static_cast(codepoint) >> 6u))); + add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); + } + else if (codepoint <= 0xFFFF) + { + // 3-byte characters: 1110xxxx 10xxxxxx 10xxxxxx + add(static_cast(0xE0u | (static_cast(codepoint) >> 12u))); + add(static_cast(0x80u | ((static_cast(codepoint) >> 6u) & 0x3Fu))); + add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); + } + else + { + // 4-byte characters: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx + add(static_cast(0xF0u | (static_cast(codepoint) >> 18u))); + add(static_cast(0x80u | ((static_cast(codepoint) >> 12u) & 0x3Fu))); + add(static_cast(0x80u | ((static_cast(codepoint) >> 6u) & 0x3Fu))); + add(static_cast(0x80u | (static_cast(codepoint) & 0x3Fu))); + } + + break; + } + + // other characters after escape + default: + error_message = "invalid string: forbidden character after backslash"; + return token_type::parse_error; + } + + break; + } + + // invalid control characters + case 0x00: + { + error_message = "invalid string: control character U+0000 (NUL) must be escaped to \\u0000"; + return token_type::parse_error; + } + + case 0x01: + { + error_message = "invalid string: control character U+0001 (SOH) must be escaped to \\u0001"; + return token_type::parse_error; + } + + case 0x02: + { + error_message = "invalid string: control character U+0002 (STX) must be escaped to \\u0002"; + return token_type::parse_error; + } + + case 0x03: + { + error_message = "invalid string: control character U+0003 (ETX) must be escaped to \\u0003"; + return token_type::parse_error; + } + + case 0x04: + { + error_message = "invalid string: control character U+0004 (EOT) must be escaped to \\u0004"; + return token_type::parse_error; + } + + case 0x05: + { + error_message = "invalid string: control character U+0005 (ENQ) must be escaped to \\u0005"; + return token_type::parse_error; + } + + case 0x06: + { + error_message = "invalid string: control character U+0006 (ACK) must be escaped to \\u0006"; + return token_type::parse_error; + } + + case 0x07: + { + error_message = "invalid string: control character U+0007 (BEL) must be escaped to \\u0007"; + return token_type::parse_error; + } + + case 0x08: + { + error_message = "invalid string: control character U+0008 (BS) must be escaped to \\u0008 or \\b"; + return token_type::parse_error; + } + + case 0x09: + { + error_message = "invalid string: control character U+0009 (HT) must be escaped to \\u0009 or \\t"; + return token_type::parse_error; + } + + case 0x0A: + { + error_message = "invalid string: control character U+000A (LF) must be escaped to \\u000A or \\n"; + return token_type::parse_error; + } + + case 0x0B: + { + error_message = "invalid string: control character U+000B (VT) must be escaped to \\u000B"; + return token_type::parse_error; + } + + case 0x0C: + { + error_message = "invalid string: control character U+000C (FF) must be escaped to \\u000C or \\f"; + return token_type::parse_error; + } + + case 0x0D: + { + error_message = "invalid string: control character U+000D (CR) must be escaped to \\u000D or \\r"; + return token_type::parse_error; + } + + case 0x0E: + { + error_message = "invalid string: control character U+000E (SO) must be escaped to \\u000E"; + return token_type::parse_error; + } + + case 0x0F: + { + error_message = "invalid string: control character U+000F (SI) must be escaped to \\u000F"; + return token_type::parse_error; + } + + case 0x10: + { + error_message = "invalid string: control character U+0010 (DLE) must be escaped to \\u0010"; + return token_type::parse_error; + } + + case 0x11: + { + error_message = "invalid string: control character U+0011 (DC1) must be escaped to \\u0011"; + return token_type::parse_error; + } + + case 0x12: + { + error_message = "invalid string: control character U+0012 (DC2) must be escaped to \\u0012"; + return token_type::parse_error; + } + + case 0x13: + { + error_message = "invalid string: control character U+0013 (DC3) must be escaped to \\u0013"; + return token_type::parse_error; + } + + case 0x14: + { + error_message = "invalid string: control character U+0014 (DC4) must be escaped to \\u0014"; + return token_type::parse_error; + } + + case 0x15: + { + error_message = "invalid string: control character U+0015 (NAK) must be escaped to \\u0015"; + return token_type::parse_error; + } + + case 0x16: + { + error_message = "invalid string: control character U+0016 (SYN) must be escaped to \\u0016"; + return token_type::parse_error; + } + + case 0x17: + { + error_message = "invalid string: control character U+0017 (ETB) must be escaped to \\u0017"; + return token_type::parse_error; + } + + case 0x18: + { + error_message = "invalid string: control character U+0018 (CAN) must be escaped to \\u0018"; + return token_type::parse_error; + } + + case 0x19: + { + error_message = "invalid string: control character U+0019 (EM) must be escaped to \\u0019"; + return token_type::parse_error; + } + + case 0x1A: + { + error_message = "invalid string: control character U+001A (SUB) must be escaped to \\u001A"; + return token_type::parse_error; + } + + case 0x1B: + { + error_message = "invalid string: control character U+001B (ESC) must be escaped to \\u001B"; + return token_type::parse_error; + } + + case 0x1C: + { + error_message = "invalid string: control character U+001C (FS) must be escaped to \\u001C"; + return token_type::parse_error; + } + + case 0x1D: + { + error_message = "invalid string: control character U+001D (GS) must be escaped to \\u001D"; + return token_type::parse_error; + } + + case 0x1E: + { + error_message = "invalid string: control character U+001E (RS) must be escaped to \\u001E"; + return token_type::parse_error; + } + + case 0x1F: + { + error_message = "invalid string: control character U+001F (US) must be escaped to \\u001F"; + return token_type::parse_error; + } + + // U+0020..U+007F (except U+0022 (quote) and U+005C (backspace)) + case 0x20: + case 0x21: + case 0x23: + case 0x24: + case 0x25: + case 0x26: + case 0x27: + case 0x28: + case 0x29: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: + case 0x30: + case 0x31: + case 0x32: + case 0x33: + case 0x34: + case 0x35: + case 0x36: + case 0x37: + case 0x38: + case 0x39: + case 0x3A: + case 0x3B: + case 0x3C: + case 0x3D: + case 0x3E: + case 0x3F: + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: + case 0x51: + case 0x52: + case 0x53: + case 0x54: + case 0x55: + case 0x56: + case 0x57: + case 0x58: + case 0x59: + case 0x5A: + case 0x5B: + case 0x5D: + case 0x5E: + case 0x5F: + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: + case 0x70: + case 0x71: + case 0x72: + case 0x73: + case 0x74: + case 0x75: + case 0x76: + case 0x77: + case 0x78: + case 0x79: + case 0x7A: + case 0x7B: + case 0x7C: + case 0x7D: + case 0x7E: + case 0x7F: + { + add(current); + break; + } + + // U+0080..U+07FF: bytes C2..DF 80..BF + case 0xC2: + case 0xC3: + case 0xC4: + case 0xC5: + case 0xC6: + case 0xC7: + case 0xC8: + case 0xC9: + case 0xCA: + case 0xCB: + case 0xCC: + case 0xCD: + case 0xCE: + case 0xCF: + case 0xD0: + case 0xD1: + case 0xD2: + case 0xD3: + case 0xD4: + case 0xD5: + case 0xD6: + case 0xD7: + case 0xD8: + case 0xD9: + case 0xDA: + case 0xDB: + case 0xDC: + case 0xDD: + case 0xDE: + case 0xDF: + { + if (JSON_HEDLEY_UNLIKELY(!next_byte_in_range({0x80, 0xBF}))) + { + return token_type::parse_error; + } + break; + } + + // U+0800..U+0FFF: bytes E0 A0..BF 80..BF + case 0xE0: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0xA0, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } + + // U+1000..U+CFFF: bytes E1..EC 80..BF 80..BF + // U+E000..U+FFFF: bytes EE..EF 80..BF 80..BF + case 0xE1: + case 0xE2: + case 0xE3: + case 0xE4: + case 0xE5: + case 0xE6: + case 0xE7: + case 0xE8: + case 0xE9: + case 0xEA: + case 0xEB: + case 0xEC: + case 0xEE: + case 0xEF: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } + + // U+D000..U+D7FF: bytes ED 80..9F 80..BF + case 0xED: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0x9F, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } + + // U+10000..U+3FFFF F0 90..BF 80..BF 80..BF + case 0xF0: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x90, 0xBF, 0x80, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } + + // U+40000..U+FFFFF F1..F3 80..BF 80..BF 80..BF + case 0xF1: + case 0xF2: + case 0xF3: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0xBF, 0x80, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } + + // U+100000..U+10FFFF F4 80..8F 80..BF 80..BF + case 0xF4: + { + if (JSON_HEDLEY_UNLIKELY(!(next_byte_in_range({0x80, 0x8F, 0x80, 0xBF, 0x80, 0xBF})))) + { + return token_type::parse_error; + } + break; + } + + // remaining bytes (80..C1 and F5..FF) are ill-formed + default: + { + error_message = "invalid string: ill-formed UTF-8 byte"; + return token_type::parse_error; + } + } + } + } + + /*! + * @brief scan a comment + * @return whether comment could be scanned successfully + */ + bool scan_comment() + { + switch (get()) + { + // single-line comments skip input until a newline or EOF is read + case '/': + { + while (true) + { + switch (get()) + { + case '\n': + case '\r': + case std::char_traits::eof(): + case '\0': + return true; + + default: + break; + } + } + } + + // multi-line comments skip input until */ is read + case '*': + { + while (true) + { + switch (get()) + { + case std::char_traits::eof(): + case '\0': + { + error_message = "invalid comment; missing closing '*/'"; + return false; + } + + case '*': + { + switch (get()) + { + case '/': + return true; + + default: + { + unget(); + continue; + } + } + } + + default: + continue; + } + } + } + + // unexpected character after reading '/' + default: + { + error_message = "invalid comment; expecting '/' or '*' after '/'"; + return false; + } + } + } + + JSON_HEDLEY_NON_NULL(2) + static void strtof(float& f, const char* str, char** endptr) noexcept + { + f = std::strtof(str, endptr); + } + + JSON_HEDLEY_NON_NULL(2) + static void strtof(double& f, const char* str, char** endptr) noexcept + { + f = std::strtod(str, endptr); + } + + JSON_HEDLEY_NON_NULL(2) + static void strtof(long double& f, const char* str, char** endptr) noexcept + { + f = std::strtold(str, endptr); + } + + /*! + @brief scan a number literal + + This function scans a string according to Sect. 6 of RFC 8259. + + The function is realized with a deterministic finite state machine derived + from the grammar described in RFC 8259. Starting in state "init", the + input is read and used to determined the next state. Only state "done" + accepts the number. State "error" is a trap state to model errors. In the + table below, "anything" means any character but the ones listed before. + + state | 0 | 1-9 | e E | + | - | . | anything + ---------|----------|----------|----------|---------|---------|----------|----------- + init | zero | any1 | [error] | [error] | minus | [error] | [error] + minus | zero | any1 | [error] | [error] | [error] | [error] | [error] + zero | done | done | exponent | done | done | decimal1 | done + any1 | any1 | any1 | exponent | done | done | decimal1 | done + decimal1 | decimal2 | decimal2 | [error] | [error] | [error] | [error] | [error] + decimal2 | decimal2 | decimal2 | exponent | done | done | done | done + exponent | any2 | any2 | [error] | sign | sign | [error] | [error] + sign | any2 | any2 | [error] | [error] | [error] | [error] | [error] + any2 | any2 | any2 | done | done | done | done | done + + The state machine is realized with one label per state (prefixed with + "scan_number_") and `goto` statements between them. The state machine + contains cycles, but any cycle can be left when EOF is read. Therefore, + the function is guaranteed to terminate. + + During scanning, the read bytes are stored in token_buffer. This string is + then converted to a signed integer, an unsigned integer, or a + floating-point number. + + @return token_type::value_unsigned, token_type::value_integer, or + token_type::value_float if number could be successfully scanned, + token_type::parse_error otherwise + + @note The scanner is independent of the current locale. Internally, the + locale's decimal point is used instead of `.` to work with the + locale-dependent converters. + */ + token_type scan_number() // lgtm [cpp/use-of-goto] + { + // reset token_buffer to store the number's bytes + reset(); + + // the type of the parsed number; initially set to unsigned; will be + // changed if minus sign, decimal point or exponent is read + token_type number_type = token_type::value_unsigned; + + // state (init): we just found out we need to scan a number + switch (current) + { + case '-': + { + add(current); + goto scan_number_minus; + } + + case '0': + { + add(current); + goto scan_number_zero; + } + + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any1; + } + + // all other characters are rejected outside scan_number() + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + +scan_number_minus: + // state: we just parsed a leading minus sign + number_type = token_type::value_integer; + switch (get()) + { + case '0': + { + add(current); + goto scan_number_zero; + } + + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any1; + } + + default: + { + error_message = "invalid number; expected digit after '-'"; + return token_type::parse_error; + } + } + +scan_number_zero: + // state: we just parse a zero (maybe with a leading minus sign) + switch (get()) + { + case '.': + { + add(decimal_point_char); + goto scan_number_decimal1; + } + + case 'e': + case 'E': + { + add(current); + goto scan_number_exponent; + } + + default: + goto scan_number_done; + } + +scan_number_any1: + // state: we just parsed a number 0-9 (maybe with a leading minus sign) + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any1; + } + + case '.': + { + add(decimal_point_char); + goto scan_number_decimal1; + } + + case 'e': + case 'E': + { + add(current); + goto scan_number_exponent; + } + + default: + goto scan_number_done; + } + +scan_number_decimal1: + // state: we just parsed a decimal point + number_type = token_type::value_float; + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_decimal2; + } + + default: + { + error_message = "invalid number; expected digit after '.'"; + return token_type::parse_error; + } + } + +scan_number_decimal2: + // we just parsed at least one number after a decimal point + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_decimal2; + } + + case 'e': + case 'E': + { + add(current); + goto scan_number_exponent; + } + + default: + goto scan_number_done; + } + +scan_number_exponent: + // we just parsed an exponent + number_type = token_type::value_float; + switch (get()) + { + case '+': + case '-': + { + add(current); + goto scan_number_sign; + } + + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any2; + } + + default: + { + error_message = + "invalid number; expected '+', '-', or digit after exponent"; + return token_type::parse_error; + } + } + +scan_number_sign: + // we just parsed an exponent sign + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any2; + } + + default: + { + error_message = "invalid number; expected digit after exponent sign"; + return token_type::parse_error; + } + } + +scan_number_any2: + // we just parsed a number after the exponent or exponent sign + switch (get()) + { + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + { + add(current); + goto scan_number_any2; + } + + default: + goto scan_number_done; + } + +scan_number_done: + // unget the character after the number (we only read it to know that + // we are done scanning a number) + unget(); + + char* endptr = nullptr; // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + errno = 0; + + // try to parse integers first and fall back to floats + if (number_type == token_type::value_unsigned) + { + const auto x = std::strtoull(token_buffer.data(), &endptr, 10); + + // we checked the number format before + JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); + + if (errno == 0) + { + value_unsigned = static_cast(x); + if (value_unsigned == x) + { + return token_type::value_unsigned; + } + } + } + else if (number_type == token_type::value_integer) + { + const auto x = std::strtoll(token_buffer.data(), &endptr, 10); + + // we checked the number format before + JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); + + if (errno == 0) + { + value_integer = static_cast(x); + if (value_integer == x) + { + return token_type::value_integer; + } + } + } + + // this code is reached if we parse a floating-point number or if an + // integer conversion above failed + strtof(value_float, token_buffer.data(), &endptr); + + // we checked the number format before + JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size()); + + return token_type::value_float; + } + + /*! + @param[in] literal_text the literal text to expect + @param[in] length the length of the passed literal text + @param[in] return_type the token type to return on success + */ + JSON_HEDLEY_NON_NULL(2) + token_type scan_literal(const char_type* literal_text, const std::size_t length, + token_type return_type) + { + JSON_ASSERT(std::char_traits::to_char_type(current) == literal_text[0]); + for (std::size_t i = 1; i < length; ++i) + { + if (JSON_HEDLEY_UNLIKELY(std::char_traits::to_char_type(get()) != literal_text[i])) + { + error_message = "invalid literal"; + return token_type::parse_error; + } + } + return return_type; + } + + ///////////////////// + // input management + ///////////////////// + + /// reset token_buffer; current character is beginning of token + void reset() noexcept + { + token_buffer.clear(); + token_string.clear(); + token_string.push_back(std::char_traits::to_char_type(current)); + } + + /* + @brief get next character from the input + + This function provides the interface to the used input adapter. It does + not throw in case the input reached EOF, but returns a + `std::char_traits::eof()` in that case. Stores the scanned characters + for use in error messages. + + @return character read from the input + */ + char_int_type get() + { + ++position.chars_read_total; + ++position.chars_read_current_line; + + if (next_unget) + { + // just reset the next_unget variable and work with current + next_unget = false; + } + else + { + current = ia.get_character(); + } + + if (JSON_HEDLEY_LIKELY(current != std::char_traits::eof())) + { + token_string.push_back(std::char_traits::to_char_type(current)); + } + + if (current == '\n') + { + ++position.lines_read; + position.chars_read_current_line = 0; + } + + return current; + } + + /*! + @brief unget current character (read it again on next get) + + We implement unget by setting variable next_unget to true. The input is not + changed - we just simulate ungetting by modifying chars_read_total, + chars_read_current_line, and token_string. The next call to get() will + behave as if the unget character is read again. + */ + void unget() + { + next_unget = true; + + --position.chars_read_total; + + // in case we "unget" a newline, we have to also decrement the lines_read + if (position.chars_read_current_line == 0) + { + if (position.lines_read > 0) + { + --position.lines_read; + } + } + else + { + --position.chars_read_current_line; + } + + if (JSON_HEDLEY_LIKELY(current != std::char_traits::eof())) + { + JSON_ASSERT(!token_string.empty()); + token_string.pop_back(); + } + } + + /// add a character to token_buffer + void add(char_int_type c) + { + token_buffer.push_back(static_cast(c)); + } + + public: + ///////////////////// + // value getters + ///////////////////// + + /// return integer value + constexpr number_integer_t get_number_integer() const noexcept + { + return value_integer; + } + + /// return unsigned integer value + constexpr number_unsigned_t get_number_unsigned() const noexcept + { + return value_unsigned; + } + + /// return floating-point value + constexpr number_float_t get_number_float() const noexcept + { + return value_float; + } + + /// return current string value (implicitly resets the token; useful only once) + string_t& get_string() + { + return token_buffer; + } + + ///////////////////// + // diagnostics + ///////////////////// + + /// return position of last read token + constexpr position_t get_position() const noexcept + { + return position; + } + + /// return the last read token (for errors only). Will never contain EOF + /// (an arbitrary value that is not a valid char value, often -1), because + /// 255 may legitimately occur. May contain NUL, which should be escaped. + std::string get_token_string() const + { + // escape control characters + std::string result; + for (const auto c : token_string) + { + if (static_cast(c) <= '\x1F') + { + // escape control characters + std::array cs{{}}; + (std::snprintf)(cs.data(), cs.size(), "", static_cast(c)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + result += cs.data(); + } + else + { + // add character as is + result.push_back(static_cast(c)); + } + } + + return result; + } + + /// return syntax error message + JSON_HEDLEY_RETURNS_NON_NULL + constexpr const char* get_error_message() const noexcept + { + return error_message; + } + + ///////////////////// + // actual scanner + ///////////////////// + + /*! + @brief skip the UTF-8 byte order mark + @return true iff there is no BOM or the correct BOM has been skipped + */ + bool skip_bom() + { + if (get() == 0xEF) + { + // check if we completely parse the BOM + return get() == 0xBB && get() == 0xBF; + } + + // the first character is not the beginning of the BOM; unget it to + // process is later + unget(); + return true; + } + + void skip_whitespace() + { + do + { + get(); + } + while (current == ' ' || current == '\t' || current == '\n' || current == '\r'); + } + + token_type scan() + { + // initially, skip the BOM + if (position.chars_read_total == 0 && !skip_bom()) + { + error_message = "invalid BOM; must be 0xEF 0xBB 0xBF if given"; + return token_type::parse_error; + } + + // read next character and ignore whitespace + skip_whitespace(); + + // ignore comments + while (ignore_comments && current == '/') + { + if (!scan_comment()) + { + return token_type::parse_error; + } + + // skip following whitespace + skip_whitespace(); + } + + switch (current) + { + // structural characters + case '[': + return token_type::begin_array; + case ']': + return token_type::end_array; + case '{': + return token_type::begin_object; + case '}': + return token_type::end_object; + case ':': + return token_type::name_separator; + case ',': + return token_type::value_separator; + + // literals + case 't': + { + std::array true_literal = {{char_type('t'), char_type('r'), char_type('u'), char_type('e')}}; + return scan_literal(true_literal.data(), true_literal.size(), token_type::literal_true); + } + case 'f': + { + std::array false_literal = {{char_type('f'), char_type('a'), char_type('l'), char_type('s'), char_type('e')}}; + return scan_literal(false_literal.data(), false_literal.size(), token_type::literal_false); + } + case 'n': + { + std::array null_literal = {{char_type('n'), char_type('u'), char_type('l'), char_type('l')}}; + return scan_literal(null_literal.data(), null_literal.size(), token_type::literal_null); + } + + // string + case '\"': + return scan_string(); + + // number + case '-': + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + return scan_number(); + + // end of input (the null byte is needed when parsing from + // string literals) + case '\0': + case std::char_traits::eof(): + return token_type::end_of_input; + + // error + default: + error_message = "invalid literal"; + return token_type::parse_error; + } + } + + private: + /// input adapter + InputAdapterType ia; + + /// whether comments should be ignored (true) or signaled as errors (false) + const bool ignore_comments = false; + + /// the current character + char_int_type current = std::char_traits::eof(); + + /// whether the next get() call should just return current + bool next_unget = false; + + /// the start position of the current token + position_t position {}; + + /// raw input token string (for error messages) + std::vector token_string {}; + + /// buffer for variable-length tokens (numbers, strings) + string_t token_buffer {}; + + /// a description of occurred lexer errors + const char* error_message = ""; + + // number values + number_integer_t value_integer = 0; + number_unsigned_t value_unsigned = 0; + number_float_t value_float = 0; + + /// the decimal point + const char_int_type decimal_point_char = '.'; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + + +#include // size_t +#include // declval +#include // string + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +template +using null_function_t = decltype(std::declval().null()); + +template +using boolean_function_t = + decltype(std::declval().boolean(std::declval())); + +template +using number_integer_function_t = + decltype(std::declval().number_integer(std::declval())); + +template +using number_unsigned_function_t = + decltype(std::declval().number_unsigned(std::declval())); + +template +using number_float_function_t = decltype(std::declval().number_float( + std::declval(), std::declval())); + +template +using string_function_t = + decltype(std::declval().string(std::declval())); + +template +using binary_function_t = + decltype(std::declval().binary(std::declval())); + +template +using start_object_function_t = + decltype(std::declval().start_object(std::declval())); + +template +using key_function_t = + decltype(std::declval().key(std::declval())); + +template +using end_object_function_t = decltype(std::declval().end_object()); + +template +using start_array_function_t = + decltype(std::declval().start_array(std::declval())); + +template +using end_array_function_t = decltype(std::declval().end_array()); + +template +using parse_error_function_t = decltype(std::declval().parse_error( + std::declval(), std::declval(), + std::declval())); + +template +struct is_sax +{ + private: + static_assert(is_basic_json::value, + "BasicJsonType must be of type basic_json<...>"); + + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using exception_t = typename BasicJsonType::exception; + + public: + static constexpr bool value = + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value && + is_detected_exact::value; +}; + +template +struct is_sax_static_asserts +{ + private: + static_assert(is_basic_json::value, + "BasicJsonType must be of type basic_json<...>"); + + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using exception_t = typename BasicJsonType::exception; + + public: + static_assert(is_detected_exact::value, + "Missing/invalid function: bool null()"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool boolean(bool)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool boolean(bool)"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool number_integer(number_integer_t)"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool number_unsigned(number_unsigned_t)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool number_float(number_float_t, const string_t&)"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool string(string_t&)"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool binary(binary_t&)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool start_object(std::size_t)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool key(string_t&)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool end_object()"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool start_array(std::size_t)"); + static_assert(is_detected_exact::value, + "Missing/invalid function: bool end_array()"); + static_assert( + is_detected_exact::value, + "Missing/invalid function: bool parse_error(std::size_t, const " + "std::string&, const exception&)"); +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ + +/// how to treat CBOR tags +enum class cbor_tag_handler_t +{ + error, ///< throw a parse_error exception in case of a tag + ignore, ///< ignore tags + store ///< store tags as binary type +}; + +/*! +@brief determine system byte order + +@return true if and only if system's byte order is little endian + +@note from https://stackoverflow.com/a/1001328/266378 +*/ +static inline bool little_endianess(int num = 1) noexcept +{ + return *reinterpret_cast(&num) == 1; +} + + +/////////////////// +// binary reader // +/////////////////// + +/*! +@brief deserialization of CBOR, MessagePack, and UBJSON values +*/ +template> +class binary_reader +{ + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using json_sax_t = SAX; + using char_type = typename InputAdapterType::char_type; + using char_int_type = typename std::char_traits::int_type; + + public: + /*! + @brief create a binary reader + + @param[in] adapter input adapter to read from + */ + explicit binary_reader(InputAdapterType&& adapter) noexcept : ia(std::move(adapter)) + { + (void)detail::is_sax_static_asserts {}; + } + + // make class move-only + binary_reader(const binary_reader&) = delete; + binary_reader(binary_reader&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + binary_reader& operator=(const binary_reader&) = delete; + binary_reader& operator=(binary_reader&&) = default; // NOLINT(hicpp-noexcept-move,performance-noexcept-move-constructor) + ~binary_reader() = default; + + /*! + @param[in] format the binary format to parse + @param[in] sax_ a SAX event processor + @param[in] strict whether to expect the input to be consumed completed + @param[in] tag_handler how to treat CBOR tags + + @return whether parsing was successful + */ + JSON_HEDLEY_NON_NULL(3) + bool sax_parse(const input_format_t format, + json_sax_t* sax_, + const bool strict = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + sax = sax_; + bool result = false; + + switch (format) + { + case input_format_t::bson: + result = parse_bson_internal(); + break; + + case input_format_t::cbor: + result = parse_cbor_internal(true, tag_handler); + break; + + case input_format_t::msgpack: + result = parse_msgpack_internal(); + break; + + case input_format_t::ubjson: + result = parse_ubjson_internal(); + break; + + case input_format_t::json: // LCOV_EXCL_LINE + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + + // strict mode: next byte must be EOF + if (result && strict) + { + if (format == input_format_t::ubjson) + { + get_ignore_noop(); + } + else + { + get(); + } + + if (JSON_HEDLEY_UNLIKELY(current != std::char_traits::eof())) + { + return sax->parse_error(chars_read, get_token_string(), + parse_error::create(110, chars_read, exception_message(format, "expected end of input; last byte: 0x" + get_token_string(), "value"), BasicJsonType())); + } + } + + return result; + } + + private: + ////////// + // BSON // + ////////// + + /*! + @brief Reads in a BSON-object and passes it to the SAX-parser. + @return whether a valid BSON-value was passed to the SAX parser + */ + bool parse_bson_internal() + { + std::int32_t document_size{}; + get_number(input_format_t::bson, document_size); + + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1)))) + { + return false; + } + + if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_list(/*is_array*/false))) + { + return false; + } + + return sax->end_object(); + } + + /*! + @brief Parses a C-style string from the BSON input. + @param[in,out] result A reference to the string variable where the read + string is to be stored. + @return `true` if the \x00-byte indicating the end of the string was + encountered before the EOF; false` indicates an unexpected EOF. + */ + bool get_bson_cstr(string_t& result) + { + auto out = std::back_inserter(result); + while (true) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::bson, "cstring"))) + { + return false; + } + if (current == 0x00) + { + return true; + } + *out++ = static_cast(current); + } + } + + /*! + @brief Parses a zero-terminated string of length @a len from the BSON + input. + @param[in] len The length (including the zero-byte at the end) of the + string to be read. + @param[in,out] result A reference to the string variable where the read + string is to be stored. + @tparam NumberType The type of the length @a len + @pre len >= 1 + @return `true` if the string was successfully parsed + */ + template + bool get_bson_string(const NumberType len, string_t& result) + { + if (JSON_HEDLEY_UNLIKELY(len < 1)) + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "string length must be at least 1, is " + std::to_string(len), "string"), BasicJsonType())); + } + + return get_string(input_format_t::bson, len - static_cast(1), result) && get() != std::char_traits::eof(); + } + + /*! + @brief Parses a byte array input of length @a len from the BSON input. + @param[in] len The length of the byte array to be read. + @param[in,out] result A reference to the binary variable where the read + array is to be stored. + @tparam NumberType The type of the length @a len + @pre len >= 0 + @return `true` if the byte array was successfully parsed + */ + template + bool get_bson_binary(const NumberType len, binary_t& result) + { + if (JSON_HEDLEY_UNLIKELY(len < 0)) + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "byte array length cannot be negative, is " + std::to_string(len), "binary"), BasicJsonType())); + } + + // All BSON binary values have a subtype + std::uint8_t subtype{}; + get_number(input_format_t::bson, subtype); + result.set_subtype(subtype); + + return get_binary(input_format_t::bson, len, result); + } + + /*! + @brief Read a BSON document element of the given @a element_type. + @param[in] element_type The BSON element type, c.f. http://bsonspec.org/spec.html + @param[in] element_type_parse_position The position in the input stream, + where the `element_type` was read. + @warning Not all BSON element types are supported yet. An unsupported + @a element_type will give rise to a parse_error.114: + Unsupported BSON record type 0x... + @return whether a valid BSON-object/array was passed to the SAX parser + */ + bool parse_bson_element_internal(const char_int_type element_type, + const std::size_t element_type_parse_position) + { + switch (element_type) + { + case 0x01: // double + { + double number{}; + return get_number(input_format_t::bson, number) && sax->number_float(static_cast(number), ""); + } + + case 0x02: // string + { + std::int32_t len{}; + string_t value; + return get_number(input_format_t::bson, len) && get_bson_string(len, value) && sax->string(value); + } + + case 0x03: // object + { + return parse_bson_internal(); + } + + case 0x04: // array + { + return parse_bson_array(); + } + + case 0x05: // binary + { + std::int32_t len{}; + binary_t value; + return get_number(input_format_t::bson, len) && get_bson_binary(len, value) && sax->binary(value); + } + + case 0x08: // boolean + { + return sax->boolean(get() != 0); + } + + case 0x0A: // null + { + return sax->null(); + } + + case 0x10: // int32 + { + std::int32_t value{}; + return get_number(input_format_t::bson, value) && sax->number_integer(value); + } + + case 0x12: // int64 + { + std::int64_t value{}; + return get_number(input_format_t::bson, value) && sax->number_integer(value); + } + + default: // anything else not supported (yet) + { + std::array cr{{}}; + (std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast(element_type)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + return sax->parse_error(element_type_parse_position, std::string(cr.data()), parse_error::create(114, element_type_parse_position, "Unsupported BSON record type 0x" + std::string(cr.data()), BasicJsonType())); + } + } + } + + /*! + @brief Read a BSON element list (as specified in the BSON-spec) + + The same binary layout is used for objects and arrays, hence it must be + indicated with the argument @a is_array which one is expected + (true --> array, false --> object). + + @param[in] is_array Determines if the element list being read is to be + treated as an object (@a is_array == false), or as an + array (@a is_array == true). + @return whether a valid BSON-object/array was passed to the SAX parser + */ + bool parse_bson_element_list(const bool is_array) + { + string_t key; + + while (auto element_type = get()) + { + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::bson, "element list"))) + { + return false; + } + + const std::size_t element_type_parse_position = chars_read; + if (JSON_HEDLEY_UNLIKELY(!get_bson_cstr(key))) + { + return false; + } + + if (!is_array && !sax->key(key)) + { + return false; + } + + if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_internal(element_type, element_type_parse_position))) + { + return false; + } + + // get_bson_cstr only appends + key.clear(); + } + + return true; + } + + /*! + @brief Reads an array from the BSON input and passes it to the SAX-parser. + @return whether a valid BSON-array was passed to the SAX parser + */ + bool parse_bson_array() + { + std::int32_t document_size{}; + get_number(input_format_t::bson, document_size); + + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1)))) + { + return false; + } + + if (JSON_HEDLEY_UNLIKELY(!parse_bson_element_list(/*is_array*/true))) + { + return false; + } + + return sax->end_array(); + } + + ////////// + // CBOR // + ////////// + + /*! + @param[in] get_char whether a new character should be retrieved from the + input (true) or whether the last read character should + be considered instead (false) + @param[in] tag_handler how CBOR tags should be treated + + @return whether a valid CBOR value was passed to the SAX parser + */ + bool parse_cbor_internal(const bool get_char, + const cbor_tag_handler_t tag_handler) + { + switch (get_char ? get() : current) + { + // EOF + case std::char_traits::eof(): + return unexpect_eof(input_format_t::cbor, "value"); + + // Integer 0x00..0x17 (0..23) + case 0x00: + case 0x01: + case 0x02: + case 0x03: + case 0x04: + case 0x05: + case 0x06: + case 0x07: + case 0x08: + case 0x09: + case 0x0A: + case 0x0B: + case 0x0C: + case 0x0D: + case 0x0E: + case 0x0F: + case 0x10: + case 0x11: + case 0x12: + case 0x13: + case 0x14: + case 0x15: + case 0x16: + case 0x17: + return sax->number_unsigned(static_cast(current)); + + case 0x18: // Unsigned integer (one-byte uint8_t follows) + { + std::uint8_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); + } + + case 0x19: // Unsigned integer (two-byte uint16_t follows) + { + std::uint16_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); + } + + case 0x1A: // Unsigned integer (four-byte uint32_t follows) + { + std::uint32_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); + } + + case 0x1B: // Unsigned integer (eight-byte uint64_t follows) + { + std::uint64_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_unsigned(number); + } + + // Negative integer -1-0x00..-1-0x17 (-1..-24) + case 0x20: + case 0x21: + case 0x22: + case 0x23: + case 0x24: + case 0x25: + case 0x26: + case 0x27: + case 0x28: + case 0x29: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: + case 0x30: + case 0x31: + case 0x32: + case 0x33: + case 0x34: + case 0x35: + case 0x36: + case 0x37: + return sax->number_integer(static_cast(0x20 - 1 - current)); + + case 0x38: // Negative integer (one-byte uint8_t follows) + { + std::uint8_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); + } + + case 0x39: // Negative integer -1-n (two-byte uint16_t follows) + { + std::uint16_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); + } + + case 0x3A: // Negative integer -1-n (four-byte uint32_t follows) + { + std::uint32_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) - number); + } + + case 0x3B: // Negative integer -1-n (eight-byte uint64_t follows) + { + std::uint64_t number{}; + return get_number(input_format_t::cbor, number) && sax->number_integer(static_cast(-1) + - static_cast(number)); + } + + // Binary data (0x00..0x17 bytes follow) + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: + case 0x51: + case 0x52: + case 0x53: + case 0x54: + case 0x55: + case 0x56: + case 0x57: + case 0x58: // Binary data (one-byte uint8_t for n follows) + case 0x59: // Binary data (two-byte uint16_t for n follow) + case 0x5A: // Binary data (four-byte uint32_t for n follow) + case 0x5B: // Binary data (eight-byte uint64_t for n follow) + case 0x5F: // Binary data (indefinite length) + { + binary_t b; + return get_cbor_binary(b) && sax->binary(b); + } + + // UTF-8 string (0x00..0x17 bytes follow) + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: + case 0x70: + case 0x71: + case 0x72: + case 0x73: + case 0x74: + case 0x75: + case 0x76: + case 0x77: + case 0x78: // UTF-8 string (one-byte uint8_t for n follows) + case 0x79: // UTF-8 string (two-byte uint16_t for n follow) + case 0x7A: // UTF-8 string (four-byte uint32_t for n follow) + case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow) + case 0x7F: // UTF-8 string (indefinite length) + { + string_t s; + return get_cbor_string(s) && sax->string(s); + } + + // array (0x00..0x17 data items follow) + case 0x80: + case 0x81: + case 0x82: + case 0x83: + case 0x84: + case 0x85: + case 0x86: + case 0x87: + case 0x88: + case 0x89: + case 0x8A: + case 0x8B: + case 0x8C: + case 0x8D: + case 0x8E: + case 0x8F: + case 0x90: + case 0x91: + case 0x92: + case 0x93: + case 0x94: + case 0x95: + case 0x96: + case 0x97: + return get_cbor_array(static_cast(static_cast(current) & 0x1Fu), tag_handler); + + case 0x98: // array (one-byte uint8_t for n follows) + { + std::uint8_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); + } + + case 0x99: // array (two-byte uint16_t for n follow) + { + std::uint16_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); + } + + case 0x9A: // array (four-byte uint32_t for n follow) + { + std::uint32_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_array(static_cast(len), tag_handler); + } + + case 0x9B: // array (eight-byte uint64_t for n follow) + { + std::uint64_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_array(detail::conditional_static_cast(len), tag_handler); + } + + case 0x9F: // array (indefinite length) + return get_cbor_array(std::size_t(-1), tag_handler); + + // map (0x00..0x17 pairs of data items follow) + case 0xA0: + case 0xA1: + case 0xA2: + case 0xA3: + case 0xA4: + case 0xA5: + case 0xA6: + case 0xA7: + case 0xA8: + case 0xA9: + case 0xAA: + case 0xAB: + case 0xAC: + case 0xAD: + case 0xAE: + case 0xAF: + case 0xB0: + case 0xB1: + case 0xB2: + case 0xB3: + case 0xB4: + case 0xB5: + case 0xB6: + case 0xB7: + return get_cbor_object(static_cast(static_cast(current) & 0x1Fu), tag_handler); + + case 0xB8: // map (one-byte uint8_t for n follows) + { + std::uint8_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); + } + + case 0xB9: // map (two-byte uint16_t for n follow) + { + std::uint16_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); + } + + case 0xBA: // map (four-byte uint32_t for n follow) + { + std::uint32_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_object(static_cast(len), tag_handler); + } + + case 0xBB: // map (eight-byte uint64_t for n follow) + { + std::uint64_t len{}; + return get_number(input_format_t::cbor, len) && get_cbor_object(detail::conditional_static_cast(len), tag_handler); + } + + case 0xBF: // map (indefinite length) + return get_cbor_object(std::size_t(-1), tag_handler); + + case 0xC6: // tagged item + case 0xC7: + case 0xC8: + case 0xC9: + case 0xCA: + case 0xCB: + case 0xCC: + case 0xCD: + case 0xCE: + case 0xCF: + case 0xD0: + case 0xD1: + case 0xD2: + case 0xD3: + case 0xD4: + case 0xD8: // tagged item (1 bytes follow) + case 0xD9: // tagged item (2 bytes follow) + case 0xDA: // tagged item (4 bytes follow) + case 0xDB: // tagged item (8 bytes follow) + { + switch (tag_handler) + { + case cbor_tag_handler_t::error: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); + } + + case cbor_tag_handler_t::ignore: + { + // ignore binary subtype + switch (current) + { + case 0xD8: + { + std::uint8_t subtype_to_ignore{}; + get_number(input_format_t::cbor, subtype_to_ignore); + break; + } + case 0xD9: + { + std::uint16_t subtype_to_ignore{}; + get_number(input_format_t::cbor, subtype_to_ignore); + break; + } + case 0xDA: + { + std::uint32_t subtype_to_ignore{}; + get_number(input_format_t::cbor, subtype_to_ignore); + break; + } + case 0xDB: + { + std::uint64_t subtype_to_ignore{}; + get_number(input_format_t::cbor, subtype_to_ignore); + break; + } + default: + break; + } + return parse_cbor_internal(true, tag_handler); + } + + case cbor_tag_handler_t::store: + { + binary_t b; + // use binary subtype and store in binary container + switch (current) + { + case 0xD8: + { + std::uint8_t subtype{}; + get_number(input_format_t::cbor, subtype); + b.set_subtype(detail::conditional_static_cast(subtype)); + break; + } + case 0xD9: + { + std::uint16_t subtype{}; + get_number(input_format_t::cbor, subtype); + b.set_subtype(detail::conditional_static_cast(subtype)); + break; + } + case 0xDA: + { + std::uint32_t subtype{}; + get_number(input_format_t::cbor, subtype); + b.set_subtype(detail::conditional_static_cast(subtype)); + break; + } + case 0xDB: + { + std::uint64_t subtype{}; + get_number(input_format_t::cbor, subtype); + b.set_subtype(detail::conditional_static_cast(subtype)); + break; + } + default: + return parse_cbor_internal(true, tag_handler); + } + get(); + return get_cbor_binary(b) && sax->binary(b); + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + return false; // LCOV_EXCL_LINE + } + } + + case 0xF4: // false + return sax->boolean(false); + + case 0xF5: // true + return sax->boolean(true); + + case 0xF6: // null + return sax->null(); + + case 0xF9: // Half-Precision Float (two-byte IEEE 754) + { + const auto byte1_raw = get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number"))) + { + return false; + } + const auto byte2_raw = get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "number"))) + { + return false; + } + + const auto byte1 = static_cast(byte1_raw); + const auto byte2 = static_cast(byte2_raw); + + // code from RFC 7049, Appendix D, Figure 3: + // As half-precision floating-point numbers were only added + // to IEEE 754 in 2008, today's programming platforms often + // still only have limited support for them. It is very + // easy to include at least decoding support for them even + // without such support. An example of a small decoder for + // half-precision floating-point numbers in the C language + // is shown in Fig. 3. + const auto half = static_cast((byte1 << 8u) + byte2); + const double val = [&half] + { + const int exp = (half >> 10u) & 0x1Fu; + const unsigned int mant = half & 0x3FFu; + JSON_ASSERT(0 <= exp&& exp <= 32); + JSON_ASSERT(mant <= 1024); + switch (exp) + { + case 0: + return std::ldexp(mant, -24); + case 31: + return (mant == 0) + ? std::numeric_limits::infinity() + : std::numeric_limits::quiet_NaN(); + default: + return std::ldexp(mant + 1024, exp - 25); + } + }(); + return sax->number_float((half & 0x8000u) != 0 + ? static_cast(-val) + : static_cast(val), ""); + } + + case 0xFA: // Single-Precision Float (four-byte IEEE 754) + { + float number{}; + return get_number(input_format_t::cbor, number) && sax->number_float(static_cast(number), ""); + } + + case 0xFB: // Double-Precision Float (eight-byte IEEE 754) + { + double number{}; + return get_number(input_format_t::cbor, number) && sax->number_float(static_cast(number), ""); + } + + default: // anything else (0xFF is handled inside the other types) + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); + } + } + } + + /*! + @brief reads a CBOR string + + This function first reads starting bytes to determine the expected + string length and then copies this number of bytes into a string. + Additionally, CBOR's strings with indefinite lengths are supported. + + @param[out] result created string + + @return whether string creation completed + */ + bool get_cbor_string(string_t& result) + { + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "string"))) + { + return false; + } + + switch (current) + { + // UTF-8 string (0x00..0x17 bytes follow) + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: + case 0x70: + case 0x71: + case 0x72: + case 0x73: + case 0x74: + case 0x75: + case 0x76: + case 0x77: + { + return get_string(input_format_t::cbor, static_cast(current) & 0x1Fu, result); + } + + case 0x78: // UTF-8 string (one-byte uint8_t for n follows) + { + std::uint8_t len{}; + return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); + } + + case 0x79: // UTF-8 string (two-byte uint16_t for n follow) + { + std::uint16_t len{}; + return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); + } + + case 0x7A: // UTF-8 string (four-byte uint32_t for n follow) + { + std::uint32_t len{}; + return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); + } + + case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow) + { + std::uint64_t len{}; + return get_number(input_format_t::cbor, len) && get_string(input_format_t::cbor, len, result); + } + + case 0x7F: // UTF-8 string (indefinite length) + { + while (get() != 0xFF) + { + string_t chunk; + if (!get_cbor_string(chunk)) + { + return false; + } + result.append(chunk); + } + return true; + } + + default: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x60-0x7B) or indefinite string type (0x7F); last byte: 0x" + last_token, "string"), BasicJsonType())); + } + } + } + + /*! + @brief reads a CBOR byte array + + This function first reads starting bytes to determine the expected + byte array length and then copies this number of bytes into the byte array. + Additionally, CBOR's byte arrays with indefinite lengths are supported. + + @param[out] result created byte array + + @return whether byte array creation completed + */ + bool get_cbor_binary(binary_t& result) + { + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::cbor, "binary"))) + { + return false; + } + + switch (current) + { + // Binary data (0x00..0x17 bytes follow) + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: + case 0x51: + case 0x52: + case 0x53: + case 0x54: + case 0x55: + case 0x56: + case 0x57: + { + return get_binary(input_format_t::cbor, static_cast(current) & 0x1Fu, result); + } + + case 0x58: // Binary data (one-byte uint8_t for n follows) + { + std::uint8_t len{}; + return get_number(input_format_t::cbor, len) && + get_binary(input_format_t::cbor, len, result); + } + + case 0x59: // Binary data (two-byte uint16_t for n follow) + { + std::uint16_t len{}; + return get_number(input_format_t::cbor, len) && + get_binary(input_format_t::cbor, len, result); + } + + case 0x5A: // Binary data (four-byte uint32_t for n follow) + { + std::uint32_t len{}; + return get_number(input_format_t::cbor, len) && + get_binary(input_format_t::cbor, len, result); + } + + case 0x5B: // Binary data (eight-byte uint64_t for n follow) + { + std::uint64_t len{}; + return get_number(input_format_t::cbor, len) && + get_binary(input_format_t::cbor, len, result); + } + + case 0x5F: // Binary data (indefinite length) + { + while (get() != 0xFF) + { + binary_t chunk; + if (!get_cbor_binary(chunk)) + { + return false; + } + result.insert(result.end(), chunk.begin(), chunk.end()); + } + return true; + } + + default: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x40-0x5B) or indefinite binary array type (0x5F); last byte: 0x" + last_token, "binary"), BasicJsonType())); + } + } + } + + /*! + @param[in] len the length of the array or std::size_t(-1) for an + array of indefinite size + @param[in] tag_handler how CBOR tags should be treated + @return whether array creation completed + */ + bool get_cbor_array(const std::size_t len, + const cbor_tag_handler_t tag_handler) + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(len))) + { + return false; + } + + if (len != std::size_t(-1)) + { + for (std::size_t i = 0; i < len; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) + { + return false; + } + } + } + else + { + while (get() != 0xFF) + { + if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(false, tag_handler))) + { + return false; + } + } + } + + return sax->end_array(); + } + + /*! + @param[in] len the length of the object or std::size_t(-1) for an + object of indefinite size + @param[in] tag_handler how CBOR tags should be treated + @return whether object creation completed + */ + bool get_cbor_object(const std::size_t len, + const cbor_tag_handler_t tag_handler) + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(len))) + { + return false; + } + + if (len != 0) + { + string_t key; + if (len != std::size_t(-1)) + { + for (std::size_t i = 0; i < len; ++i) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!get_cbor_string(key) || !sax->key(key))) + { + return false; + } + + if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) + { + return false; + } + key.clear(); + } + } + else + { + while (get() != 0xFF) + { + if (JSON_HEDLEY_UNLIKELY(!get_cbor_string(key) || !sax->key(key))) + { + return false; + } + + if (JSON_HEDLEY_UNLIKELY(!parse_cbor_internal(true, tag_handler))) + { + return false; + } + key.clear(); + } + } + } + + return sax->end_object(); + } + + ///////////// + // MsgPack // + ///////////// + + /*! + @return whether a valid MessagePack value was passed to the SAX parser + */ + bool parse_msgpack_internal() + { + switch (get()) + { + // EOF + case std::char_traits::eof(): + return unexpect_eof(input_format_t::msgpack, "value"); + + // positive fixint + case 0x00: + case 0x01: + case 0x02: + case 0x03: + case 0x04: + case 0x05: + case 0x06: + case 0x07: + case 0x08: + case 0x09: + case 0x0A: + case 0x0B: + case 0x0C: + case 0x0D: + case 0x0E: + case 0x0F: + case 0x10: + case 0x11: + case 0x12: + case 0x13: + case 0x14: + case 0x15: + case 0x16: + case 0x17: + case 0x18: + case 0x19: + case 0x1A: + case 0x1B: + case 0x1C: + case 0x1D: + case 0x1E: + case 0x1F: + case 0x20: + case 0x21: + case 0x22: + case 0x23: + case 0x24: + case 0x25: + case 0x26: + case 0x27: + case 0x28: + case 0x29: + case 0x2A: + case 0x2B: + case 0x2C: + case 0x2D: + case 0x2E: + case 0x2F: + case 0x30: + case 0x31: + case 0x32: + case 0x33: + case 0x34: + case 0x35: + case 0x36: + case 0x37: + case 0x38: + case 0x39: + case 0x3A: + case 0x3B: + case 0x3C: + case 0x3D: + case 0x3E: + case 0x3F: + case 0x40: + case 0x41: + case 0x42: + case 0x43: + case 0x44: + case 0x45: + case 0x46: + case 0x47: + case 0x48: + case 0x49: + case 0x4A: + case 0x4B: + case 0x4C: + case 0x4D: + case 0x4E: + case 0x4F: + case 0x50: + case 0x51: + case 0x52: + case 0x53: + case 0x54: + case 0x55: + case 0x56: + case 0x57: + case 0x58: + case 0x59: + case 0x5A: + case 0x5B: + case 0x5C: + case 0x5D: + case 0x5E: + case 0x5F: + case 0x60: + case 0x61: + case 0x62: + case 0x63: + case 0x64: + case 0x65: + case 0x66: + case 0x67: + case 0x68: + case 0x69: + case 0x6A: + case 0x6B: + case 0x6C: + case 0x6D: + case 0x6E: + case 0x6F: + case 0x70: + case 0x71: + case 0x72: + case 0x73: + case 0x74: + case 0x75: + case 0x76: + case 0x77: + case 0x78: + case 0x79: + case 0x7A: + case 0x7B: + case 0x7C: + case 0x7D: + case 0x7E: + case 0x7F: + return sax->number_unsigned(static_cast(current)); + + // fixmap + case 0x80: + case 0x81: + case 0x82: + case 0x83: + case 0x84: + case 0x85: + case 0x86: + case 0x87: + case 0x88: + case 0x89: + case 0x8A: + case 0x8B: + case 0x8C: + case 0x8D: + case 0x8E: + case 0x8F: + return get_msgpack_object(static_cast(static_cast(current) & 0x0Fu)); + + // fixarray + case 0x90: + case 0x91: + case 0x92: + case 0x93: + case 0x94: + case 0x95: + case 0x96: + case 0x97: + case 0x98: + case 0x99: + case 0x9A: + case 0x9B: + case 0x9C: + case 0x9D: + case 0x9E: + case 0x9F: + return get_msgpack_array(static_cast(static_cast(current) & 0x0Fu)); + + // fixstr + case 0xA0: + case 0xA1: + case 0xA2: + case 0xA3: + case 0xA4: + case 0xA5: + case 0xA6: + case 0xA7: + case 0xA8: + case 0xA9: + case 0xAA: + case 0xAB: + case 0xAC: + case 0xAD: + case 0xAE: + case 0xAF: + case 0xB0: + case 0xB1: + case 0xB2: + case 0xB3: + case 0xB4: + case 0xB5: + case 0xB6: + case 0xB7: + case 0xB8: + case 0xB9: + case 0xBA: + case 0xBB: + case 0xBC: + case 0xBD: + case 0xBE: + case 0xBF: + case 0xD9: // str 8 + case 0xDA: // str 16 + case 0xDB: // str 32 + { + string_t s; + return get_msgpack_string(s) && sax->string(s); + } + + case 0xC0: // nil + return sax->null(); + + case 0xC2: // false + return sax->boolean(false); + + case 0xC3: // true + return sax->boolean(true); + + case 0xC4: // bin 8 + case 0xC5: // bin 16 + case 0xC6: // bin 32 + case 0xC7: // ext 8 + case 0xC8: // ext 16 + case 0xC9: // ext 32 + case 0xD4: // fixext 1 + case 0xD5: // fixext 2 + case 0xD6: // fixext 4 + case 0xD7: // fixext 8 + case 0xD8: // fixext 16 + { + binary_t b; + return get_msgpack_binary(b) && sax->binary(b); + } + + case 0xCA: // float 32 + { + float number{}; + return get_number(input_format_t::msgpack, number) && sax->number_float(static_cast(number), ""); + } + + case 0xCB: // float 64 + { + double number{}; + return get_number(input_format_t::msgpack, number) && sax->number_float(static_cast(number), ""); + } + + case 0xCC: // uint 8 + { + std::uint8_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); + } + + case 0xCD: // uint 16 + { + std::uint16_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); + } + + case 0xCE: // uint 32 + { + std::uint32_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); + } + + case 0xCF: // uint 64 + { + std::uint64_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_unsigned(number); + } + + case 0xD0: // int 8 + { + std::int8_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_integer(number); + } + + case 0xD1: // int 16 + { + std::int16_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_integer(number); + } + + case 0xD2: // int 32 + { + std::int32_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_integer(number); + } + + case 0xD3: // int 64 + { + std::int64_t number{}; + return get_number(input_format_t::msgpack, number) && sax->number_integer(number); + } + + case 0xDC: // array 16 + { + std::uint16_t len{}; + return get_number(input_format_t::msgpack, len) && get_msgpack_array(static_cast(len)); + } + + case 0xDD: // array 32 + { + std::uint32_t len{}; + return get_number(input_format_t::msgpack, len) && get_msgpack_array(static_cast(len)); + } + + case 0xDE: // map 16 + { + std::uint16_t len{}; + return get_number(input_format_t::msgpack, len) && get_msgpack_object(static_cast(len)); + } + + case 0xDF: // map 32 + { + std::uint32_t len{}; + return get_number(input_format_t::msgpack, len) && get_msgpack_object(static_cast(len)); + } + + // negative fixint + case 0xE0: + case 0xE1: + case 0xE2: + case 0xE3: + case 0xE4: + case 0xE5: + case 0xE6: + case 0xE7: + case 0xE8: + case 0xE9: + case 0xEA: + case 0xEB: + case 0xEC: + case 0xED: + case 0xEE: + case 0xEF: + case 0xF0: + case 0xF1: + case 0xF2: + case 0xF3: + case 0xF4: + case 0xF5: + case 0xF6: + case 0xF7: + case 0xF8: + case 0xF9: + case 0xFA: + case 0xFB: + case 0xFC: + case 0xFD: + case 0xFE: + case 0xFF: + return sax->number_integer(static_cast(current)); + + default: // anything else + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::msgpack, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); + } + } + } + + /*! + @brief reads a MessagePack string + + This function first reads starting bytes to determine the expected + string length and then copies this number of bytes into a string. + + @param[out] result created string + + @return whether string creation completed + */ + bool get_msgpack_string(string_t& result) + { + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::msgpack, "string"))) + { + return false; + } + + switch (current) + { + // fixstr + case 0xA0: + case 0xA1: + case 0xA2: + case 0xA3: + case 0xA4: + case 0xA5: + case 0xA6: + case 0xA7: + case 0xA8: + case 0xA9: + case 0xAA: + case 0xAB: + case 0xAC: + case 0xAD: + case 0xAE: + case 0xAF: + case 0xB0: + case 0xB1: + case 0xB2: + case 0xB3: + case 0xB4: + case 0xB5: + case 0xB6: + case 0xB7: + case 0xB8: + case 0xB9: + case 0xBA: + case 0xBB: + case 0xBC: + case 0xBD: + case 0xBE: + case 0xBF: + { + return get_string(input_format_t::msgpack, static_cast(current) & 0x1Fu, result); + } + + case 0xD9: // str 8 + { + std::uint8_t len{}; + return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); + } + + case 0xDA: // str 16 + { + std::uint16_t len{}; + return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); + } + + case 0xDB: // str 32 + { + std::uint32_t len{}; + return get_number(input_format_t::msgpack, len) && get_string(input_format_t::msgpack, len, result); + } + + default: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::msgpack, "expected length specification (0xA0-0xBF, 0xD9-0xDB); last byte: 0x" + last_token, "string"), BasicJsonType())); + } + } + } + + /*! + @brief reads a MessagePack byte array + + This function first reads starting bytes to determine the expected + byte array length and then copies this number of bytes into a byte array. + + @param[out] result created byte array + + @return whether byte array creation completed + */ + bool get_msgpack_binary(binary_t& result) + { + // helper function to set the subtype + auto assign_and_return_true = [&result](std::int8_t subtype) + { + result.set_subtype(static_cast(subtype)); + return true; + }; + + switch (current) + { + case 0xC4: // bin 8 + { + std::uint8_t len{}; + return get_number(input_format_t::msgpack, len) && + get_binary(input_format_t::msgpack, len, result); + } + + case 0xC5: // bin 16 + { + std::uint16_t len{}; + return get_number(input_format_t::msgpack, len) && + get_binary(input_format_t::msgpack, len, result); + } + + case 0xC6: // bin 32 + { + std::uint32_t len{}; + return get_number(input_format_t::msgpack, len) && + get_binary(input_format_t::msgpack, len, result); + } + + case 0xC7: // ext 8 + { + std::uint8_t len{}; + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, len) && + get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, len, result) && + assign_and_return_true(subtype); + } + + case 0xC8: // ext 16 + { + std::uint16_t len{}; + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, len) && + get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, len, result) && + assign_and_return_true(subtype); + } + + case 0xC9: // ext 32 + { + std::uint32_t len{}; + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, len) && + get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, len, result) && + assign_and_return_true(subtype); + } + + case 0xD4: // fixext 1 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 1, result) && + assign_and_return_true(subtype); + } + + case 0xD5: // fixext 2 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 2, result) && + assign_and_return_true(subtype); + } + + case 0xD6: // fixext 4 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 4, result) && + assign_and_return_true(subtype); + } + + case 0xD7: // fixext 8 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 8, result) && + assign_and_return_true(subtype); + } + + case 0xD8: // fixext 16 + { + std::int8_t subtype{}; + return get_number(input_format_t::msgpack, subtype) && + get_binary(input_format_t::msgpack, 16, result) && + assign_and_return_true(subtype); + } + + default: // LCOV_EXCL_LINE + return false; // LCOV_EXCL_LINE + } + } + + /*! + @param[in] len the length of the array + @return whether array creation completed + */ + bool get_msgpack_array(const std::size_t len) + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(len))) + { + return false; + } + + for (std::size_t i = 0; i < len; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!parse_msgpack_internal())) + { + return false; + } + } + + return sax->end_array(); + } + + /*! + @param[in] len the length of the object + @return whether object creation completed + */ + bool get_msgpack_object(const std::size_t len) + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(len))) + { + return false; + } + + string_t key; + for (std::size_t i = 0; i < len; ++i) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!get_msgpack_string(key) || !sax->key(key))) + { + return false; + } + + if (JSON_HEDLEY_UNLIKELY(!parse_msgpack_internal())) + { + return false; + } + key.clear(); + } + + return sax->end_object(); + } + + //////////// + // UBJSON // + //////////// + + /*! + @param[in] get_char whether a new character should be retrieved from the + input (true, default) or whether the last read + character should be considered instead + + @return whether a valid UBJSON value was passed to the SAX parser + */ + bool parse_ubjson_internal(const bool get_char = true) + { + return get_ubjson_value(get_char ? get_ignore_noop() : current); + } + + /*! + @brief reads a UBJSON string + + This function is either called after reading the 'S' byte explicitly + indicating a string, or in case of an object key where the 'S' byte can be + left out. + + @param[out] result created string + @param[in] get_char whether a new character should be retrieved from the + input (true, default) or whether the last read + character should be considered instead + + @return whether string creation completed + */ + bool get_ubjson_string(string_t& result, const bool get_char = true) + { + if (get_char) + { + get(); // TODO(niels): may we ignore N here? + } + + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value"))) + { + return false; + } + + switch (current) + { + case 'U': + { + std::uint8_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } + + case 'i': + { + std::int8_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } + + case 'I': + { + std::int16_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } + + case 'l': + { + std::int32_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } + + case 'L': + { + std::int64_t len{}; + return get_number(input_format_t::ubjson, len) && get_string(input_format_t::ubjson, len, result); + } + + default: + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L); last byte: 0x" + last_token, "string"), BasicJsonType())); + } + } + + /*! + @param[out] result determined size + @return whether size determination completed + */ + bool get_ubjson_size_value(std::size_t& result) + { + switch (get_ignore_noop()) + { + case 'U': + { + std::uint8_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); + return true; + } + + case 'i': + { + std::int8_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); // NOLINT(bugprone-signed-char-misuse,cert-str34-c): number is not a char + return true; + } + + case 'I': + { + std::int16_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); + return true; + } + + case 'l': + { + std::int32_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); + return true; + } + + case 'L': + { + std::int64_t number{}; + if (JSON_HEDLEY_UNLIKELY(!get_number(input_format_t::ubjson, number))) + { + return false; + } + result = static_cast(number); + return true; + } + + default: + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L) after '#'; last byte: 0x" + last_token, "size"), BasicJsonType())); + } + } + } + + /*! + @brief determine the type and size for a container + + In the optimized UBJSON format, a type and a size can be provided to allow + for a more compact representation. + + @param[out] result pair of the size and the type + + @return whether pair creation completed + */ + bool get_ubjson_size_type(std::pair& result) + { + result.first = string_t::npos; // size + result.second = 0; // type + + get_ignore_noop(); + + if (current == '$') + { + result.second = get(); // must not ignore 'N', because 'N' maybe the type + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "type"))) + { + return false; + } + + get_ignore_noop(); + if (JSON_HEDLEY_UNLIKELY(current != '#')) + { + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "value"))) + { + return false; + } + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "expected '#' after type information; last byte: 0x" + last_token, "size"), BasicJsonType())); + } + + return get_ubjson_size_value(result.first); + } + + if (current == '#') + { + return get_ubjson_size_value(result.first); + } + + return true; + } + + /*! + @param prefix the previously read or set type prefix + @return whether value creation completed + */ + bool get_ubjson_value(const char_int_type prefix) + { + switch (prefix) + { + case std::char_traits::eof(): // EOF + return unexpect_eof(input_format_t::ubjson, "value"); + + case 'T': // true + return sax->boolean(true); + case 'F': // false + return sax->boolean(false); + + case 'Z': // null + return sax->null(); + + case 'U': + { + std::uint8_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_unsigned(number); + } + + case 'i': + { + std::int8_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_integer(number); + } + + case 'I': + { + std::int16_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_integer(number); + } + + case 'l': + { + std::int32_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_integer(number); + } + + case 'L': + { + std::int64_t number{}; + return get_number(input_format_t::ubjson, number) && sax->number_integer(number); + } + + case 'd': + { + float number{}; + return get_number(input_format_t::ubjson, number) && sax->number_float(static_cast(number), ""); + } + + case 'D': + { + double number{}; + return get_number(input_format_t::ubjson, number) && sax->number_float(static_cast(number), ""); + } + + case 'H': + { + return get_ubjson_high_precision_number(); + } + + case 'C': // char + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "char"))) + { + return false; + } + if (JSON_HEDLEY_UNLIKELY(current > 127)) + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "byte after 'C' must be in range 0x00..0x7F; last byte: 0x" + last_token, "char"), BasicJsonType())); + } + string_t s(1, static_cast(current)); + return sax->string(s); + } + + case 'S': // string + { + string_t s; + return get_ubjson_string(s) && sax->string(s); + } + + case '[': // array + return get_ubjson_array(); + + case '{': // object + return get_ubjson_object(); + + default: // anything else + { + auto last_token = get_token_string(); + return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "invalid byte: 0x" + last_token, "value"), BasicJsonType())); + } + } + } + + /*! + @return whether array creation completed + */ + bool get_ubjson_array() + { + std::pair size_and_type; + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_size_type(size_and_type))) + { + return false; + } + + if (size_and_type.first != string_t::npos) + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(size_and_type.first))) + { + return false; + } + + if (size_and_type.second != 0) + { + if (size_and_type.second != 'N') + { + for (std::size_t i = 0; i < size_and_type.first; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_value(size_and_type.second))) + { + return false; + } + } + } + } + else + { + for (std::size_t i = 0; i < size_and_type.first; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) + { + return false; + } + } + } + } + else + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1)))) + { + return false; + } + + while (current != ']') + { + if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal(false))) + { + return false; + } + get_ignore_noop(); + } + } + + return sax->end_array(); + } + + /*! + @return whether object creation completed + */ + bool get_ubjson_object() + { + std::pair size_and_type; + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_size_type(size_and_type))) + { + return false; + } + + string_t key; + if (size_and_type.first != string_t::npos) + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(size_and_type.first))) + { + return false; + } + + if (size_and_type.second != 0) + { + for (std::size_t i = 0; i < size_and_type.first; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key) || !sax->key(key))) + { + return false; + } + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_value(size_and_type.second))) + { + return false; + } + key.clear(); + } + } + else + { + for (std::size_t i = 0; i < size_and_type.first; ++i) + { + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key) || !sax->key(key))) + { + return false; + } + if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) + { + return false; + } + key.clear(); + } + } + } + else + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1)))) + { + return false; + } + + while (current != '}') + { + if (JSON_HEDLEY_UNLIKELY(!get_ubjson_string(key, false) || !sax->key(key))) + { + return false; + } + if (JSON_HEDLEY_UNLIKELY(!parse_ubjson_internal())) + { + return false; + } + get_ignore_noop(); + key.clear(); + } + } + + return sax->end_object(); + } + + // Note, no reader for UBJSON binary types is implemented because they do + // not exist + + bool get_ubjson_high_precision_number() + { + // get size of following number string + std::size_t size{}; + auto res = get_ubjson_size_value(size); + if (JSON_HEDLEY_UNLIKELY(!res)) + { + return res; + } + + // get number string + std::vector number_vector; + for (std::size_t i = 0; i < size; ++i) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(input_format_t::ubjson, "number"))) + { + return false; + } + number_vector.push_back(static_cast(current)); + } + + // parse number string + using ia_type = decltype(detail::input_adapter(number_vector)); + auto number_lexer = detail::lexer(detail::input_adapter(number_vector), false); + const auto result_number = number_lexer.scan(); + const auto number_string = number_lexer.get_token_string(); + const auto result_remainder = number_lexer.scan(); + + using token_type = typename detail::lexer_base::token_type; + + if (JSON_HEDLEY_UNLIKELY(result_remainder != token_type::end_of_input)) + { + return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType())); + } + + switch (result_number) + { + case token_type::value_integer: + return sax->number_integer(number_lexer.get_number_integer()); + case token_type::value_unsigned: + return sax->number_unsigned(number_lexer.get_number_unsigned()); + case token_type::value_float: + return sax->number_float(number_lexer.get_number_float(), std::move(number_string)); + case token_type::uninitialized: + case token_type::literal_true: + case token_type::literal_false: + case token_type::literal_null: + case token_type::value_string: + case token_type::begin_array: + case token_type::begin_object: + case token_type::end_array: + case token_type::end_object: + case token_type::name_separator: + case token_type::value_separator: + case token_type::parse_error: + case token_type::end_of_input: + case token_type::literal_or_value: + default: + return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType())); + } + } + + /////////////////////// + // Utility functions // + /////////////////////// + + /*! + @brief get next character from the input + + This function provides the interface to the used input adapter. It does + not throw in case the input reached EOF, but returns a -'ve valued + `std::char_traits::eof()` in that case. + + @return character read from the input + */ + char_int_type get() + { + ++chars_read; + return current = ia.get_character(); + } + + /*! + @return character read from the input after ignoring all 'N' entries + */ + char_int_type get_ignore_noop() + { + do + { + get(); + } + while (current == 'N'); + + return current; + } + + /* + @brief read a number from the input + + @tparam NumberType the type of the number + @param[in] format the current format (for diagnostics) + @param[out] result number of type @a NumberType + + @return whether conversion completed + + @note This function needs to respect the system's endianess, because + bytes in CBOR, MessagePack, and UBJSON are stored in network order + (big endian) and therefore need reordering on little endian systems. + */ + template + bool get_number(const input_format_t format, NumberType& result) + { + // step 1: read input into array with system's byte order + std::array vec{}; + for (std::size_t i = 0; i < sizeof(NumberType); ++i) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "number"))) + { + return false; + } + + // reverse byte order prior to conversion if necessary + if (is_little_endian != InputIsLittleEndian) + { + vec[sizeof(NumberType) - i - 1] = static_cast(current); + } + else + { + vec[i] = static_cast(current); // LCOV_EXCL_LINE + } + } + + // step 2: convert array into number of type T and return + std::memcpy(&result, vec.data(), sizeof(NumberType)); + return true; + } + + /*! + @brief create a string by reading characters from the input + + @tparam NumberType the type of the number + @param[in] format the current format (for diagnostics) + @param[in] len number of characters to read + @param[out] result string created by reading @a len bytes + + @return whether string creation completed + + @note We can not reserve @a len bytes for the result, because @a len + may be too large. Usually, @ref unexpect_eof() detects the end of + the input before we run out of string memory. + */ + template + bool get_string(const input_format_t format, + const NumberType len, + string_t& result) + { + bool success = true; + for (NumberType i = 0; i < len; i++) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "string"))) + { + success = false; + break; + } + result.push_back(static_cast(current)); + } + return success; + } + + /*! + @brief create a byte array by reading bytes from the input + + @tparam NumberType the type of the number + @param[in] format the current format (for diagnostics) + @param[in] len number of bytes to read + @param[out] result byte array created by reading @a len bytes + + @return whether byte array creation completed + + @note We can not reserve @a len bytes for the result, because @a len + may be too large. Usually, @ref unexpect_eof() detects the end of + the input before we run out of memory. + */ + template + bool get_binary(const input_format_t format, + const NumberType len, + binary_t& result) + { + bool success = true; + for (NumberType i = 0; i < len; i++) + { + get(); + if (JSON_HEDLEY_UNLIKELY(!unexpect_eof(format, "binary"))) + { + success = false; + break; + } + result.push_back(static_cast(current)); + } + return success; + } + + /*! + @param[in] format the current format (for diagnostics) + @param[in] context further context information (for diagnostics) + @return whether the last read character is not EOF + */ + JSON_HEDLEY_NON_NULL(3) + bool unexpect_eof(const input_format_t format, const char* context) const + { + if (JSON_HEDLEY_UNLIKELY(current == std::char_traits::eof())) + { + return sax->parse_error(chars_read, "", + parse_error::create(110, chars_read, exception_message(format, "unexpected end of input", context), BasicJsonType())); + } + return true; + } + + /*! + @return a string representation of the last read byte + */ + std::string get_token_string() const + { + std::array cr{{}}; + (std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast(current)); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + return std::string{cr.data()}; + } + + /*! + @param[in] format the current format + @param[in] detail a detailed error message + @param[in] context further context information + @return a message string to use in the parse_error exceptions + */ + std::string exception_message(const input_format_t format, + const std::string& detail, + const std::string& context) const + { + std::string error_msg = "syntax error while parsing "; + + switch (format) + { + case input_format_t::cbor: + error_msg += "CBOR"; + break; + + case input_format_t::msgpack: + error_msg += "MessagePack"; + break; + + case input_format_t::ubjson: + error_msg += "UBJSON"; + break; + + case input_format_t::bson: + error_msg += "BSON"; + break; + + case input_format_t::json: // LCOV_EXCL_LINE + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + + return error_msg + " " + context + ": " + detail; + } + + private: + /// input adapter + InputAdapterType ia; + + /// the current character + char_int_type current = std::char_traits::eof(); + + /// the number of characters read + std::size_t chars_read = 0; + + /// whether we can assume little endianess + const bool is_little_endian = little_endianess(); + + /// the SAX parser + json_sax_t* sax = nullptr; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + +// #include + + +#include // isfinite +#include // uint8_t +#include // function +#include // string +#include // move +#include // vector + +// #include + +// #include + +// #include + +// #include + +// #include + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +//////////// +// parser // +//////////// + +enum class parse_event_t : std::uint8_t +{ + /// the parser read `{` and started to process a JSON object + object_start, + /// the parser read `}` and finished processing a JSON object + object_end, + /// the parser read `[` and started to process a JSON array + array_start, + /// the parser read `]` and finished processing a JSON array + array_end, + /// the parser read a key of a value in an object + key, + /// the parser finished reading a JSON value + value +}; + +template +using parser_callback_t = + std::function; + +/*! +@brief syntax analysis + +This class implements a recursive descent parser. +*/ +template +class parser +{ + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using number_float_t = typename BasicJsonType::number_float_t; + using string_t = typename BasicJsonType::string_t; + using lexer_t = lexer; + using token_type = typename lexer_t::token_type; + + public: + /// a parser reading from an input adapter + explicit parser(InputAdapterType&& adapter, + const parser_callback_t cb = nullptr, + const bool allow_exceptions_ = true, + const bool skip_comments = false) + : callback(cb) + , m_lexer(std::move(adapter), skip_comments) + , allow_exceptions(allow_exceptions_) + { + // read first token + get_token(); + } + + /*! + @brief public parser interface + + @param[in] strict whether to expect the last token to be EOF + @param[in,out] result parsed JSON value + + @throw parse_error.101 in case of an unexpected token + @throw parse_error.102 if to_unicode fails or surrogate error + @throw parse_error.103 if to_unicode fails + */ + void parse(const bool strict, BasicJsonType& result) + { + if (callback) + { + json_sax_dom_callback_parser sdp(result, callback, allow_exceptions); + sax_parse_internal(&sdp); + + // in strict mode, input must be completely read + if (strict && (get_token() != token_type::end_of_input)) + { + sdp.parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), + exception_message(token_type::end_of_input, "value"), BasicJsonType())); + } + + // in case of an error, return discarded value + if (sdp.is_errored()) + { + result = value_t::discarded; + return; + } + + // set top-level value to null if it was discarded by the callback + // function + if (result.is_discarded()) + { + result = nullptr; + } + } + else + { + json_sax_dom_parser sdp(result, allow_exceptions); + sax_parse_internal(&sdp); + + // in strict mode, input must be completely read + if (strict && (get_token() != token_type::end_of_input)) + { + sdp.parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input, "value"), BasicJsonType())); + } + + // in case of an error, return discarded value + if (sdp.is_errored()) + { + result = value_t::discarded; + return; + } + } + + result.assert_invariant(); + } + + /*! + @brief public accept interface + + @param[in] strict whether to expect the last token to be EOF + @return whether the input is a proper JSON text + */ + bool accept(const bool strict = true) + { + json_sax_acceptor sax_acceptor; + return sax_parse(&sax_acceptor, strict); + } + + template + JSON_HEDLEY_NON_NULL(2) + bool sax_parse(SAX* sax, const bool strict = true) + { + (void)detail::is_sax_static_asserts {}; + const bool result = sax_parse_internal(sax); + + // strict mode: next byte must be EOF + if (result && strict && (get_token() != token_type::end_of_input)) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input, "value"), BasicJsonType())); + } + + return result; + } + + private: + template + JSON_HEDLEY_NON_NULL(2) + bool sax_parse_internal(SAX* sax) + { + // stack to remember the hierarchy of structured values we are parsing + // true = array; false = object + std::vector states; + // value to avoid a goto (see comment where set to true) + bool skip_to_state_evaluation = false; + + while (true) + { + if (!skip_to_state_evaluation) + { + // invariant: get_token() was called before each iteration + switch (last_token) + { + case token_type::begin_object: + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_object(std::size_t(-1)))) + { + return false; + } + + // closing } -> we are done + if (get_token() == token_type::end_object) + { + if (JSON_HEDLEY_UNLIKELY(!sax->end_object())) + { + return false; + } + break; + } + + // parse key + if (JSON_HEDLEY_UNLIKELY(last_token != token_type::value_string)) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string, "object key"), BasicJsonType())); + } + if (JSON_HEDLEY_UNLIKELY(!sax->key(m_lexer.get_string()))) + { + return false; + } + + // parse separator (:) + if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator)) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator, "object separator"), BasicJsonType())); + } + + // remember we are now inside an object + states.push_back(false); + + // parse values + get_token(); + continue; + } + + case token_type::begin_array: + { + if (JSON_HEDLEY_UNLIKELY(!sax->start_array(std::size_t(-1)))) + { + return false; + } + + // closing ] -> we are done + if (get_token() == token_type::end_array) + { + if (JSON_HEDLEY_UNLIKELY(!sax->end_array())) + { + return false; + } + break; + } + + // remember we are now inside an array + states.push_back(true); + + // parse values (no need to call get_token) + continue; + } + + case token_type::value_float: + { + const auto res = m_lexer.get_number_float(); + + if (JSON_HEDLEY_UNLIKELY(!std::isfinite(res))) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + out_of_range::create(406, "number overflow parsing '" + m_lexer.get_token_string() + "'", BasicJsonType())); + } + + if (JSON_HEDLEY_UNLIKELY(!sax->number_float(res, m_lexer.get_string()))) + { + return false; + } + + break; + } + + case token_type::literal_false: + { + if (JSON_HEDLEY_UNLIKELY(!sax->boolean(false))) + { + return false; + } + break; + } + + case token_type::literal_null: + { + if (JSON_HEDLEY_UNLIKELY(!sax->null())) + { + return false; + } + break; + } + + case token_type::literal_true: + { + if (JSON_HEDLEY_UNLIKELY(!sax->boolean(true))) + { + return false; + } + break; + } + + case token_type::value_integer: + { + if (JSON_HEDLEY_UNLIKELY(!sax->number_integer(m_lexer.get_number_integer()))) + { + return false; + } + break; + } + + case token_type::value_string: + { + if (JSON_HEDLEY_UNLIKELY(!sax->string(m_lexer.get_string()))) + { + return false; + } + break; + } + + case token_type::value_unsigned: + { + if (JSON_HEDLEY_UNLIKELY(!sax->number_unsigned(m_lexer.get_number_unsigned()))) + { + return false; + } + break; + } + + case token_type::parse_error: + { + // using "uninitialized" to avoid "expected" message + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::uninitialized, "value"), BasicJsonType())); + } + + case token_type::uninitialized: + case token_type::end_array: + case token_type::end_object: + case token_type::name_separator: + case token_type::value_separator: + case token_type::end_of_input: + case token_type::literal_or_value: + default: // the last token was unexpected + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::literal_or_value, "value"), BasicJsonType())); + } + } + } + else + { + skip_to_state_evaluation = false; + } + + // we reached this line after we successfully parsed a value + if (states.empty()) + { + // empty stack: we reached the end of the hierarchy: done + return true; + } + + if (states.back()) // array + { + // comma -> next value + if (get_token() == token_type::value_separator) + { + // parse a new value + get_token(); + continue; + } + + // closing ] + if (JSON_HEDLEY_LIKELY(last_token == token_type::end_array)) + { + if (JSON_HEDLEY_UNLIKELY(!sax->end_array())) + { + return false; + } + + // We are done with this array. Before we can parse a + // new value, we need to evaluate the new state first. + // By setting skip_to_state_evaluation to false, we + // are effectively jumping to the beginning of this if. + JSON_ASSERT(!states.empty()); + states.pop_back(); + skip_to_state_evaluation = true; + continue; + } + + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_array, "array"), BasicJsonType())); + } + + // states.back() is false -> object + + // comma -> next value + if (get_token() == token_type::value_separator) + { + // parse key + if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::value_string)) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string, "object key"), BasicJsonType())); + } + + if (JSON_HEDLEY_UNLIKELY(!sax->key(m_lexer.get_string()))) + { + return false; + } + + // parse separator (:) + if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator)) + { + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator, "object separator"), BasicJsonType())); + } + + // parse values + get_token(); + continue; + } + + // closing } + if (JSON_HEDLEY_LIKELY(last_token == token_type::end_object)) + { + if (JSON_HEDLEY_UNLIKELY(!sax->end_object())) + { + return false; + } + + // We are done with this object. Before we can parse a + // new value, we need to evaluate the new state first. + // By setting skip_to_state_evaluation to false, we + // are effectively jumping to the beginning of this if. + JSON_ASSERT(!states.empty()); + states.pop_back(); + skip_to_state_evaluation = true; + continue; + } + + return sax->parse_error(m_lexer.get_position(), + m_lexer.get_token_string(), + parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_object, "object"), BasicJsonType())); + } + } + + /// get next token from lexer + token_type get_token() + { + return last_token = m_lexer.scan(); + } + + std::string exception_message(const token_type expected, const std::string& context) + { + std::string error_msg = "syntax error "; + + if (!context.empty()) + { + error_msg += "while parsing " + context + " "; + } + + error_msg += "- "; + + if (last_token == token_type::parse_error) + { + error_msg += std::string(m_lexer.get_error_message()) + "; last read: '" + + m_lexer.get_token_string() + "'"; + } + else + { + error_msg += "unexpected " + std::string(lexer_t::token_type_name(last_token)); + } + + if (expected != token_type::uninitialized) + { + error_msg += "; expected " + std::string(lexer_t::token_type_name(expected)); + } + + return error_msg; + } + + private: + /// callback function + const parser_callback_t callback = nullptr; + /// the type of the last read token + token_type last_token = token_type::uninitialized; + /// the lexer + lexer_t m_lexer; + /// whether to throw exceptions in case of errors + const bool allow_exceptions = true; +}; + +} // namespace detail +} // namespace nlohmann + +// #include + + +// #include + + +#include // ptrdiff_t +#include // numeric_limits + +// #include + + +namespace nlohmann +{ +namespace detail +{ +/* +@brief an iterator for primitive JSON types + +This class models an iterator for primitive JSON types (boolean, number, +string). It's only purpose is to allow the iterator/const_iterator classes +to "iterate" over primitive values. Internally, the iterator is modeled by +a `difference_type` variable. Value begin_value (`0`) models the begin, +end_value (`1`) models past the end. +*/ +class primitive_iterator_t +{ + private: + using difference_type = std::ptrdiff_t; + static constexpr difference_type begin_value = 0; + static constexpr difference_type end_value = begin_value + 1; + + JSON_PRIVATE_UNLESS_TESTED: + /// iterator as signed integer type + difference_type m_it = (std::numeric_limits::min)(); + + public: + constexpr difference_type get_value() const noexcept + { + return m_it; + } + + /// set iterator to a defined beginning + void set_begin() noexcept + { + m_it = begin_value; + } + + /// set iterator to a defined past the end + void set_end() noexcept + { + m_it = end_value; + } + + /// return whether the iterator can be dereferenced + constexpr bool is_begin() const noexcept + { + return m_it == begin_value; + } + + /// return whether the iterator is at end + constexpr bool is_end() const noexcept + { + return m_it == end_value; + } + + friend constexpr bool operator==(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept + { + return lhs.m_it == rhs.m_it; + } + + friend constexpr bool operator<(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept + { + return lhs.m_it < rhs.m_it; + } + + primitive_iterator_t operator+(difference_type n) noexcept + { + auto result = *this; + result += n; + return result; + } + + friend constexpr difference_type operator-(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept + { + return lhs.m_it - rhs.m_it; + } + + primitive_iterator_t& operator++() noexcept + { + ++m_it; + return *this; + } + + primitive_iterator_t const operator++(int) noexcept // NOLINT(readability-const-return-type) + { + auto result = *this; + ++m_it; + return result; + } + + primitive_iterator_t& operator--() noexcept + { + --m_it; + return *this; + } + + primitive_iterator_t const operator--(int) noexcept // NOLINT(readability-const-return-type) + { + auto result = *this; + --m_it; + return result; + } + + primitive_iterator_t& operator+=(difference_type n) noexcept + { + m_it += n; + return *this; + } + + primitive_iterator_t& operator-=(difference_type n) noexcept + { + m_it -= n; + return *this; + } +}; +} // namespace detail +} // namespace nlohmann + + +namespace nlohmann +{ +namespace detail +{ +/*! +@brief an iterator value + +@note This structure could easily be a union, but MSVC currently does not allow +unions members with complex constructors, see https://github.com/nlohmann/json/pull/105. +*/ +template struct internal_iterator +{ + /// iterator for JSON objects + typename BasicJsonType::object_t::iterator object_iterator {}; + /// iterator for JSON arrays + typename BasicJsonType::array_t::iterator array_iterator {}; + /// generic iterator for all other types + primitive_iterator_t primitive_iterator {}; +}; +} // namespace detail +} // namespace nlohmann + +// #include + + +#include // iterator, random_access_iterator_tag, bidirectional_iterator_tag, advance, next +#include // conditional, is_const, remove_const + +// #include + +// #include + +// #include + +// #include + +// #include + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +// forward declare, to be able to friend it later on +template class iteration_proxy; +template class iteration_proxy_value; + +/*! +@brief a template for a bidirectional iterator for the @ref basic_json class +This class implements a both iterators (iterator and const_iterator) for the +@ref basic_json class. +@note An iterator is called *initialized* when a pointer to a JSON value has + been set (e.g., by a constructor or a copy assignment). If the iterator is + default-constructed, it is *uninitialized* and most methods are undefined. + **The library uses assertions to detect calls on uninitialized iterators.** +@requirement The class satisfies the following concept requirements: +- +[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator): + The iterator that can be moved can be moved in both directions (i.e. + incremented and decremented). +@since version 1.0.0, simplified in version 2.0.9, change to bidirectional + iterators in version 3.0.0 (see https://github.com/nlohmann/json/issues/593) +*/ +template +class iter_impl +{ + /// the iterator with BasicJsonType of different const-ness + using other_iter_impl = iter_impl::value, typename std::remove_const::type, const BasicJsonType>::type>; + /// allow basic_json to access private members + friend other_iter_impl; + friend BasicJsonType; + friend iteration_proxy; + friend iteration_proxy_value; + + using object_t = typename BasicJsonType::object_t; + using array_t = typename BasicJsonType::array_t; + // make sure BasicJsonType is basic_json or const basic_json + static_assert(is_basic_json::type>::value, + "iter_impl only accepts (const) basic_json"); + + public: + + /// The std::iterator class template (used as a base class to provide typedefs) is deprecated in C++17. + /// The C++ Standard has never required user-defined iterators to derive from std::iterator. + /// A user-defined iterator should provide publicly accessible typedefs named + /// iterator_category, value_type, difference_type, pointer, and reference. + /// Note that value_type is required to be non-const, even for constant iterators. + using iterator_category = std::bidirectional_iterator_tag; + + /// the type of the values when the iterator is dereferenced + using value_type = typename BasicJsonType::value_type; + /// a type to represent differences between iterators + using difference_type = typename BasicJsonType::difference_type; + /// defines a pointer to the type iterated over (value_type) + using pointer = typename std::conditional::value, + typename BasicJsonType::const_pointer, + typename BasicJsonType::pointer>::type; + /// defines a reference to the type iterated over (value_type) + using reference = + typename std::conditional::value, + typename BasicJsonType::const_reference, + typename BasicJsonType::reference>::type; + + iter_impl() = default; + ~iter_impl() = default; + iter_impl(iter_impl&&) noexcept = default; + iter_impl& operator=(iter_impl&&) noexcept = default; + + /*! + @brief constructor for a given JSON instance + @param[in] object pointer to a JSON object for this iterator + @pre object != nullptr + @post The iterator is initialized; i.e. `m_object != nullptr`. + */ + explicit iter_impl(pointer object) noexcept : m_object(object) + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + { + m_it.object_iterator = typename object_t::iterator(); + break; + } + + case value_t::array: + { + m_it.array_iterator = typename array_t::iterator(); + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + m_it.primitive_iterator = primitive_iterator_t(); + break; + } + } + } + + /*! + @note The conventional copy constructor and copy assignment are implicitly + defined. Combined with the following converting constructor and + assignment, they support: (1) copy from iterator to iterator, (2) + copy from const iterator to const iterator, and (3) conversion from + iterator to const iterator. However conversion from const iterator + to iterator is not defined. + */ + + /*! + @brief const copy constructor + @param[in] other const iterator to copy from + @note This copy constructor had to be defined explicitly to circumvent a bug + occurring on msvc v19.0 compiler (VS 2015) debug build. For more + information refer to: https://github.com/nlohmann/json/issues/1608 + */ + iter_impl(const iter_impl& other) noexcept + : m_object(other.m_object), m_it(other.m_it) + {} + + /*! + @brief converting assignment + @param[in] other const iterator to copy from + @return const/non-const iterator + @note It is not checked whether @a other is initialized. + */ + iter_impl& operator=(const iter_impl& other) noexcept + { + if (&other != this) + { + m_object = other.m_object; + m_it = other.m_it; + } + return *this; + } + + /*! + @brief converting constructor + @param[in] other non-const iterator to copy from + @note It is not checked whether @a other is initialized. + */ + iter_impl(const iter_impl::type>& other) noexcept + : m_object(other.m_object), m_it(other.m_it) + {} + + /*! + @brief converting assignment + @param[in] other non-const iterator to copy from + @return const/non-const iterator + @note It is not checked whether @a other is initialized. + */ + iter_impl& operator=(const iter_impl::type>& other) noexcept // NOLINT(cert-oop54-cpp) + { + m_object = other.m_object; + m_it = other.m_it; + return *this; + } + + JSON_PRIVATE_UNLESS_TESTED: + /*! + @brief set the iterator to the first value + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + void set_begin() noexcept + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + { + m_it.object_iterator = m_object->m_value.object->begin(); + break; + } + + case value_t::array: + { + m_it.array_iterator = m_object->m_value.array->begin(); + break; + } + + case value_t::null: + { + // set to end so begin()==end() is true: null is empty + m_it.primitive_iterator.set_end(); + break; + } + + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + m_it.primitive_iterator.set_begin(); + break; + } + } + } + + /*! + @brief set the iterator past the last value + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + void set_end() noexcept + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + { + m_it.object_iterator = m_object->m_value.object->end(); + break; + } + + case value_t::array: + { + m_it.array_iterator = m_object->m_value.array->end(); + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + m_it.primitive_iterator.set_end(); + break; + } + } + } + + public: + /*! + @brief return a reference to the value pointed to by the iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + reference operator*() const + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + { + JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end()); + return m_it.object_iterator->second; + } + + case value_t::array: + { + JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end()); + return *m_it.array_iterator; + } + + case value_t::null: + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); + + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin())) + { + return *m_object; + } + + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); + } + } + } + + /*! + @brief dereference the iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + pointer operator->() const + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + { + JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end()); + return &(m_it.object_iterator->second); + } + + case value_t::array: + { + JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end()); + return &*m_it.array_iterator; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin())) + { + return m_object; + } + + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); + } + } + } + + /*! + @brief post-increment (it++) + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl const operator++(int) // NOLINT(readability-const-return-type) + { + auto result = *this; + ++(*this); + return result; + } + + /*! + @brief pre-increment (++it) + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl& operator++() + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + { + std::advance(m_it.object_iterator, 1); + break; + } + + case value_t::array: + { + std::advance(m_it.array_iterator, 1); + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + ++m_it.primitive_iterator; + break; + } + } + + return *this; + } + + /*! + @brief post-decrement (it--) + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl const operator--(int) // NOLINT(readability-const-return-type) + { + auto result = *this; + --(*this); + return result; + } + + /*! + @brief pre-decrement (--it) + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl& operator--() + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + { + std::advance(m_it.object_iterator, -1); + break; + } + + case value_t::array: + { + std::advance(m_it.array_iterator, -1); + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + --m_it.primitive_iterator; + break; + } + } + + return *this; + } + + /*! + @brief comparison: equal + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + template < typename IterImpl, detail::enable_if_t < (std::is_same::value || std::is_same::value), std::nullptr_t > = nullptr > + bool operator==(const IterImpl& other) const + { + // if objects are not the same, the comparison is undefined + if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object)) + { + JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers", *m_object)); + } + + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + return (m_it.object_iterator == other.m_it.object_iterator); + + case value_t::array: + return (m_it.array_iterator == other.m_it.array_iterator); + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + return (m_it.primitive_iterator == other.m_it.primitive_iterator); + } + } + + /*! + @brief comparison: not equal + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + template < typename IterImpl, detail::enable_if_t < (std::is_same::value || std::is_same::value), std::nullptr_t > = nullptr > + bool operator!=(const IterImpl& other) const + { + return !operator==(other); + } + + /*! + @brief comparison: smaller + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + bool operator<(const iter_impl& other) const + { + // if objects are not the same, the comparison is undefined + if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object)) + { + JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers", *m_object)); + } + + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + JSON_THROW(invalid_iterator::create(213, "cannot compare order of object iterators", *m_object)); + + case value_t::array: + return (m_it.array_iterator < other.m_it.array_iterator); + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + return (m_it.primitive_iterator < other.m_it.primitive_iterator); + } + } + + /*! + @brief comparison: less than or equal + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + bool operator<=(const iter_impl& other) const + { + return !other.operator < (*this); + } + + /*! + @brief comparison: greater than + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + bool operator>(const iter_impl& other) const + { + return !operator<=(other); + } + + /*! + @brief comparison: greater than or equal + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + bool operator>=(const iter_impl& other) const + { + return !operator<(other); + } + + /*! + @brief add to iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl& operator+=(difference_type i) + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators", *m_object)); + + case value_t::array: + { + std::advance(m_it.array_iterator, i); + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + m_it.primitive_iterator += i; + break; + } + } + + return *this; + } + + /*! + @brief subtract from iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl& operator-=(difference_type i) + { + return operator+=(-i); + } + + /*! + @brief add to iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl operator+(difference_type i) const + { + auto result = *this; + result += i; + return result; + } + + /*! + @brief addition of distance and iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + friend iter_impl operator+(difference_type i, const iter_impl& it) + { + auto result = it; + result += i; + return result; + } + + /*! + @brief subtract from iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + iter_impl operator-(difference_type i) const + { + auto result = *this; + result -= i; + return result; + } + + /*! + @brief return difference + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + difference_type operator-(const iter_impl& other) const + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators", *m_object)); + + case value_t::array: + return m_it.array_iterator - other.m_it.array_iterator; + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + return m_it.primitive_iterator - other.m_it.primitive_iterator; + } + } + + /*! + @brief access to successor + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + reference operator[](difference_type n) const + { + JSON_ASSERT(m_object != nullptr); + + switch (m_object->m_type) + { + case value_t::object: + JSON_THROW(invalid_iterator::create(208, "cannot use operator[] for object iterators", *m_object)); + + case value_t::array: + return *std::next(m_it.array_iterator, n); + + case value_t::null: + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); + + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.get_value() == -n)) + { + return *m_object; + } + + JSON_THROW(invalid_iterator::create(214, "cannot get value", *m_object)); + } + } + } + + /*! + @brief return the key of an object iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + const typename object_t::key_type& key() const + { + JSON_ASSERT(m_object != nullptr); + + if (JSON_HEDLEY_LIKELY(m_object->is_object())) + { + return m_it.object_iterator->first; + } + + JSON_THROW(invalid_iterator::create(207, "cannot use key() for non-object iterators", *m_object)); + } + + /*! + @brief return the value of an iterator + @pre The iterator is initialized; i.e. `m_object != nullptr`. + */ + reference value() const + { + return operator*(); + } + + JSON_PRIVATE_UNLESS_TESTED: + /// associated JSON instance + pointer m_object = nullptr; + /// the actual iterator of the associated instance + internal_iterator::type> m_it {}; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + + +#include // ptrdiff_t +#include // reverse_iterator +#include // declval + +namespace nlohmann +{ +namespace detail +{ +////////////////////// +// reverse_iterator // +////////////////////// + +/*! +@brief a template for a reverse iterator class + +@tparam Base the base iterator type to reverse. Valid types are @ref +iterator (to create @ref reverse_iterator) and @ref const_iterator (to +create @ref const_reverse_iterator). + +@requirement The class satisfies the following concept requirements: +- +[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator): + The iterator that can be moved can be moved in both directions (i.e. + incremented and decremented). +- [OutputIterator](https://en.cppreference.com/w/cpp/named_req/OutputIterator): + It is possible to write to the pointed-to element (only if @a Base is + @ref iterator). + +@since version 1.0.0 +*/ +template +class json_reverse_iterator : public std::reverse_iterator +{ + public: + using difference_type = std::ptrdiff_t; + /// shortcut to the reverse iterator adapter + using base_iterator = std::reverse_iterator; + /// the reference type for the pointed-to element + using reference = typename Base::reference; + + /// create reverse iterator from iterator + explicit json_reverse_iterator(const typename base_iterator::iterator_type& it) noexcept + : base_iterator(it) {} + + /// create reverse iterator from base class + explicit json_reverse_iterator(const base_iterator& it) noexcept : base_iterator(it) {} + + /// post-increment (it++) + json_reverse_iterator const operator++(int) // NOLINT(readability-const-return-type) + { + return static_cast(base_iterator::operator++(1)); + } + + /// pre-increment (++it) + json_reverse_iterator& operator++() + { + return static_cast(base_iterator::operator++()); + } + + /// post-decrement (it--) + json_reverse_iterator const operator--(int) // NOLINT(readability-const-return-type) + { + return static_cast(base_iterator::operator--(1)); + } + + /// pre-decrement (--it) + json_reverse_iterator& operator--() + { + return static_cast(base_iterator::operator--()); + } + + /// add to iterator + json_reverse_iterator& operator+=(difference_type i) + { + return static_cast(base_iterator::operator+=(i)); + } + + /// add to iterator + json_reverse_iterator operator+(difference_type i) const + { + return static_cast(base_iterator::operator+(i)); + } + + /// subtract from iterator + json_reverse_iterator operator-(difference_type i) const + { + return static_cast(base_iterator::operator-(i)); + } + + /// return difference + difference_type operator-(const json_reverse_iterator& other) const + { + return base_iterator(*this) - base_iterator(other); + } + + /// access to successor + reference operator[](difference_type n) const + { + return *(this->operator+(n)); + } + + /// return the key of an object iterator + auto key() const -> decltype(std::declval().key()) + { + auto it = --this->base(); + return it.key(); + } + + /// return the value of an iterator + reference value() const + { + auto it = --this->base(); + return it.operator * (); + } +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + + +#include // all_of +#include // isdigit +#include // max +#include // accumulate +#include // string +#include // move +#include // vector + +// #include + +// #include + +// #include + +// #include + + +namespace nlohmann +{ +template +class json_pointer +{ + // allow basic_json to access private members + NLOHMANN_BASIC_JSON_TPL_DECLARATION + friend class basic_json; + + public: + /*! + @brief create JSON pointer + + Create a JSON pointer according to the syntax described in + [Section 3 of RFC6901](https://tools.ietf.org/html/rfc6901#section-3). + + @param[in] s string representing the JSON pointer; if omitted, the empty + string is assumed which references the whole JSON value + + @throw parse_error.107 if the given JSON pointer @a s is nonempty and does + not begin with a slash (`/`); see example below + + @throw parse_error.108 if a tilde (`~`) in the given JSON pointer @a s is + not followed by `0` (representing `~`) or `1` (representing `/`); see + example below + + @liveexample{The example shows the construction several valid JSON pointers + as well as the exceptional behavior.,json_pointer} + + @since version 2.0.0 + */ + explicit json_pointer(const std::string& s = "") + : reference_tokens(split(s)) + {} + + /*! + @brief return a string representation of the JSON pointer + + @invariant For each JSON pointer `ptr`, it holds: + @code {.cpp} + ptr == json_pointer(ptr.to_string()); + @endcode + + @return a string representation of the JSON pointer + + @liveexample{The example shows the result of `to_string`.,json_pointer__to_string} + + @since version 2.0.0 + */ + std::string to_string() const + { + return std::accumulate(reference_tokens.begin(), reference_tokens.end(), + std::string{}, + [](const std::string & a, const std::string & b) + { + return a + "/" + detail::escape(b); + }); + } + + /// @copydoc to_string() + operator std::string() const + { + return to_string(); + } + + /*! + @brief append another JSON pointer at the end of this JSON pointer + + @param[in] ptr JSON pointer to append + @return JSON pointer with @a ptr appended + + @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add} + + @complexity Linear in the length of @a ptr. + + @sa see @ref operator/=(std::string) to append a reference token + @sa see @ref operator/=(std::size_t) to append an array index + @sa see @ref operator/(const json_pointer&, const json_pointer&) for a binary operator + + @since version 3.6.0 + */ + json_pointer& operator/=(const json_pointer& ptr) + { + reference_tokens.insert(reference_tokens.end(), + ptr.reference_tokens.begin(), + ptr.reference_tokens.end()); + return *this; + } + + /*! + @brief append an unescaped reference token at the end of this JSON pointer + + @param[in] token reference token to append + @return JSON pointer with @a token appended without escaping @a token + + @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add} + + @complexity Amortized constant. + + @sa see @ref operator/=(const json_pointer&) to append a JSON pointer + @sa see @ref operator/=(std::size_t) to append an array index + @sa see @ref operator/(const json_pointer&, std::size_t) for a binary operator + + @since version 3.6.0 + */ + json_pointer& operator/=(std::string token) + { + push_back(std::move(token)); + return *this; + } + + /*! + @brief append an array index at the end of this JSON pointer + + @param[in] array_idx array index to append + @return JSON pointer with @a array_idx appended + + @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add} + + @complexity Amortized constant. + + @sa see @ref operator/=(const json_pointer&) to append a JSON pointer + @sa see @ref operator/=(std::string) to append a reference token + @sa see @ref operator/(const json_pointer&, std::string) for a binary operator + + @since version 3.6.0 + */ + json_pointer& operator/=(std::size_t array_idx) + { + return *this /= std::to_string(array_idx); + } + + /*! + @brief create a new JSON pointer by appending the right JSON pointer at the end of the left JSON pointer + + @param[in] lhs JSON pointer + @param[in] rhs JSON pointer + @return a new JSON pointer with @a rhs appended to @a lhs + + @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary} + + @complexity Linear in the length of @a lhs and @a rhs. + + @sa see @ref operator/=(const json_pointer&) to append a JSON pointer + + @since version 3.6.0 + */ + friend json_pointer operator/(const json_pointer& lhs, + const json_pointer& rhs) + { + return json_pointer(lhs) /= rhs; + } + + /*! + @brief create a new JSON pointer by appending the unescaped token at the end of the JSON pointer + + @param[in] ptr JSON pointer + @param[in] token reference token + @return a new JSON pointer with unescaped @a token appended to @a ptr + + @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary} + + @complexity Linear in the length of @a ptr. + + @sa see @ref operator/=(std::string) to append a reference token + + @since version 3.6.0 + */ + friend json_pointer operator/(const json_pointer& ptr, std::string token) // NOLINT(performance-unnecessary-value-param) + { + return json_pointer(ptr) /= std::move(token); + } + + /*! + @brief create a new JSON pointer by appending the array-index-token at the end of the JSON pointer + + @param[in] ptr JSON pointer + @param[in] array_idx array index + @return a new JSON pointer with @a array_idx appended to @a ptr + + @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary} + + @complexity Linear in the length of @a ptr. + + @sa see @ref operator/=(std::size_t) to append an array index + + @since version 3.6.0 + */ + friend json_pointer operator/(const json_pointer& ptr, std::size_t array_idx) + { + return json_pointer(ptr) /= array_idx; + } + + /*! + @brief returns the parent of this JSON pointer + + @return parent of this JSON pointer; in case this JSON pointer is the root, + the root itself is returned + + @complexity Linear in the length of the JSON pointer. + + @liveexample{The example shows the result of `parent_pointer` for different + JSON Pointers.,json_pointer__parent_pointer} + + @since version 3.6.0 + */ + json_pointer parent_pointer() const + { + if (empty()) + { + return *this; + } + + json_pointer res = *this; + res.pop_back(); + return res; + } + + /*! + @brief remove last reference token + + @pre not `empty()` + + @liveexample{The example shows the usage of `pop_back`.,json_pointer__pop_back} + + @complexity Constant. + + @throw out_of_range.405 if JSON pointer has no parent + + @since version 3.6.0 + */ + void pop_back() + { + if (JSON_HEDLEY_UNLIKELY(empty())) + { + JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); + } + + reference_tokens.pop_back(); + } + + /*! + @brief return last reference token + + @pre not `empty()` + @return last reference token + + @liveexample{The example shows the usage of `back`.,json_pointer__back} + + @complexity Constant. + + @throw out_of_range.405 if JSON pointer has no parent + + @since version 3.6.0 + */ + const std::string& back() const + { + if (JSON_HEDLEY_UNLIKELY(empty())) + { + JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); + } + + return reference_tokens.back(); + } + + /*! + @brief append an unescaped token at the end of the reference pointer + + @param[in] token token to add + + @complexity Amortized constant. + + @liveexample{The example shows the result of `push_back` for different + JSON Pointers.,json_pointer__push_back} + + @since version 3.6.0 + */ + void push_back(const std::string& token) + { + reference_tokens.push_back(token); + } + + /// @copydoc push_back(const std::string&) + void push_back(std::string&& token) + { + reference_tokens.push_back(std::move(token)); + } + + /*! + @brief return whether pointer points to the root document + + @return true iff the JSON pointer points to the root document + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @liveexample{The example shows the result of `empty` for different JSON + Pointers.,json_pointer__empty} + + @since version 3.6.0 + */ + bool empty() const noexcept + { + return reference_tokens.empty(); + } + + private: + /*! + @param[in] s reference token to be converted into an array index + + @return integer representation of @a s + + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index begins not with a digit + @throw out_of_range.404 if string @a s could not be converted to an integer + @throw out_of_range.410 if an array index exceeds size_type + */ + static typename BasicJsonType::size_type array_index(const std::string& s) + { + using size_type = typename BasicJsonType::size_type; + + // error condition (cf. RFC 6901, Sect. 4) + if (JSON_HEDLEY_UNLIKELY(s.size() > 1 && s[0] == '0')) + { + JSON_THROW(detail::parse_error::create(106, 0, "array index '" + s + "' must not begin with '0'", BasicJsonType())); + } + + // error condition (cf. RFC 6901, Sect. 4) + if (JSON_HEDLEY_UNLIKELY(s.size() > 1 && !(s[0] >= '1' && s[0] <= '9'))) + { + JSON_THROW(detail::parse_error::create(109, 0, "array index '" + s + "' is not a number", BasicJsonType())); + } + + std::size_t processed_chars = 0; + unsigned long long res = 0; // NOLINT(runtime/int) + JSON_TRY + { + res = std::stoull(s, &processed_chars); + } + JSON_CATCH(std::out_of_range&) + { + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'", BasicJsonType())); + } + + // check if the string was completely read + if (JSON_HEDLEY_UNLIKELY(processed_chars != s.size())) + { + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'", BasicJsonType())); + } + + // only triggered on special platforms (like 32bit), see also + // https://github.com/nlohmann/json/pull/2203 + if (res >= static_cast((std::numeric_limits::max)())) // NOLINT(runtime/int) + { + JSON_THROW(detail::out_of_range::create(410, "array index " + s + " exceeds size_type", BasicJsonType())); // LCOV_EXCL_LINE + } + + return static_cast(res); + } + + JSON_PRIVATE_UNLESS_TESTED: + json_pointer top() const + { + if (JSON_HEDLEY_UNLIKELY(empty())) + { + JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent", BasicJsonType())); + } + + json_pointer result = *this; + result.reference_tokens = {reference_tokens[0]}; + return result; + } + + private: + /*! + @brief create and return a reference to the pointed to value + + @complexity Linear in the number of reference tokens. + + @throw parse_error.109 if array index is not a number + @throw type_error.313 if value cannot be unflattened + */ + BasicJsonType& get_and_create(BasicJsonType& j) const + { + auto* result = &j; + + // in case no reference tokens exist, return a reference to the JSON value + // j which will be overwritten by a primitive value + for (const auto& reference_token : reference_tokens) + { + switch (result->type()) + { + case detail::value_t::null: + { + if (reference_token == "0") + { + // start a new array if reference token is 0 + result = &result->operator[](0); + } + else + { + // start a new object otherwise + result = &result->operator[](reference_token); + } + break; + } + + case detail::value_t::object: + { + // create an entry in the object + result = &result->operator[](reference_token); + break; + } + + case detail::value_t::array: + { + // create an entry in the array + result = &result->operator[](array_index(reference_token)); + break; + } + + /* + The following code is only reached if there exists a reference + token _and_ the current value is primitive. In this case, we have + an error situation, because primitive values may only occur as + single value; that is, with an empty list of reference tokens. + */ + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + JSON_THROW(detail::type_error::create(313, "invalid value to unflatten", j)); + } + } + + return *result; + } + + /*! + @brief return a reference to the pointed to value + + @note This version does not throw if a value is not present, but tries to + create nested values instead. For instance, calling this function + with pointer `"/this/that"` on a null value is equivalent to calling + `operator[]("this").operator[]("that")` on that value, effectively + changing the null value to an object. + + @param[in] ptr a JSON value + + @return reference to the JSON value pointed to by the JSON pointer + + @complexity Linear in the length of the JSON pointer. + + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.404 if the JSON pointer can not be resolved + */ + BasicJsonType& get_unchecked(BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) + { + // convert null values to arrays or objects before continuing + if (ptr->is_null()) + { + // check if reference token is a number + const bool nums = + std::all_of(reference_token.begin(), reference_token.end(), + [](const unsigned char x) + { + return std::isdigit(x); + }); + + // change value to array for numbers or "-" or to object otherwise + *ptr = (nums || reference_token == "-") + ? detail::value_t::array + : detail::value_t::object; + } + + switch (ptr->type()) + { + case detail::value_t::object: + { + // use unchecked object access + ptr = &ptr->operator[](reference_token); + break; + } + + case detail::value_t::array: + { + if (reference_token == "-") + { + // explicitly treat "-" as index beyond the end + ptr = &ptr->operator[](ptr->m_value.array->size()); + } + else + { + // convert array index to number; unchecked access + ptr = &ptr->operator[](array_index(reference_token)); + } + break; + } + + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); + } + } + + return *ptr; + } + + /*! + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.402 if the array index '-' is used + @throw out_of_range.404 if the JSON pointer can not be resolved + */ + BasicJsonType& get_checked(BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) + { + switch (ptr->type()) + { + case detail::value_t::object: + { + // note: at performs range check + ptr = &ptr->at(reference_token); + break; + } + + case detail::value_t::array: + { + if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) + { + // "-" always fails the range check + JSON_THROW(detail::out_of_range::create(402, + "array index '-' (" + std::to_string(ptr->m_value.array->size()) + + ") is out of range", *ptr)); + } + + // note: at performs range check + ptr = &ptr->at(array_index(reference_token)); + break; + } + + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); + } + } + + return *ptr; + } + + /*! + @brief return a const reference to the pointed to value + + @param[in] ptr a JSON value + + @return const reference to the JSON value pointed to by the JSON + pointer + + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.402 if the array index '-' is used + @throw out_of_range.404 if the JSON pointer can not be resolved + */ + const BasicJsonType& get_unchecked(const BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) + { + switch (ptr->type()) + { + case detail::value_t::object: + { + // use unchecked object access + ptr = &ptr->operator[](reference_token); + break; + } + + case detail::value_t::array: + { + if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) + { + // "-" cannot be used for const access + JSON_THROW(detail::out_of_range::create(402, "array index '-' (" + std::to_string(ptr->m_value.array->size()) + ") is out of range", *ptr)); + } + + // use unchecked array access + ptr = &ptr->operator[](array_index(reference_token)); + break; + } + + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); + } + } + + return *ptr; + } + + /*! + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.402 if the array index '-' is used + @throw out_of_range.404 if the JSON pointer can not be resolved + */ + const BasicJsonType& get_checked(const BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) + { + switch (ptr->type()) + { + case detail::value_t::object: + { + // note: at performs range check + ptr = &ptr->at(reference_token); + break; + } + + case detail::value_t::array: + { + if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) + { + // "-" always fails the range check + JSON_THROW(detail::out_of_range::create(402, + "array index '-' (" + std::to_string(ptr->m_value.array->size()) + + ") is out of range", *ptr)); + } + + // note: at performs range check + ptr = &ptr->at(array_index(reference_token)); + break; + } + + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'", *ptr)); + } + } + + return *ptr; + } + + /*! + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + */ + bool contains(const BasicJsonType* ptr) const + { + for (const auto& reference_token : reference_tokens) + { + switch (ptr->type()) + { + case detail::value_t::object: + { + if (!ptr->contains(reference_token)) + { + // we did not find the key in the object + return false; + } + + ptr = &ptr->operator[](reference_token); + break; + } + + case detail::value_t::array: + { + if (JSON_HEDLEY_UNLIKELY(reference_token == "-")) + { + // "-" always fails the range check + return false; + } + if (JSON_HEDLEY_UNLIKELY(reference_token.size() == 1 && !("0" <= reference_token && reference_token <= "9"))) + { + // invalid char + return false; + } + if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1)) + { + if (JSON_HEDLEY_UNLIKELY(!('1' <= reference_token[0] && reference_token[0] <= '9'))) + { + // first char should be between '1' and '9' + return false; + } + for (std::size_t i = 1; i < reference_token.size(); i++) + { + if (JSON_HEDLEY_UNLIKELY(!('0' <= reference_token[i] && reference_token[i] <= '9'))) + { + // other char should be between '0' and '9' + return false; + } + } + } + + const auto idx = array_index(reference_token); + if (idx >= ptr->size()) + { + // index out of range + return false; + } + + ptr = &ptr->operator[](idx); + break; + } + + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + { + // we do not expect primitive values if there is still a + // reference token to process + return false; + } + } + } + + // no reference token left means we found a primitive value + return true; + } + + /*! + @brief split the string input to reference tokens + + @note This function is only called by the json_pointer constructor. + All exceptions below are documented there. + + @throw parse_error.107 if the pointer is not empty or begins with '/' + @throw parse_error.108 if character '~' is not followed by '0' or '1' + */ + static std::vector split(const std::string& reference_string) + { + std::vector result; + + // special case: empty reference string -> no reference tokens + if (reference_string.empty()) + { + return result; + } + + // check if nonempty reference string begins with slash + if (JSON_HEDLEY_UNLIKELY(reference_string[0] != '/')) + { + JSON_THROW(detail::parse_error::create(107, 1, "JSON pointer must be empty or begin with '/' - was: '" + reference_string + "'", BasicJsonType())); + } + + // extract the reference tokens: + // - slash: position of the last read slash (or end of string) + // - start: position after the previous slash + for ( + // search for the first slash after the first character + std::size_t slash = reference_string.find_first_of('/', 1), + // set the beginning of the first reference token + start = 1; + // we can stop if start == 0 (if slash == std::string::npos) + start != 0; + // set the beginning of the next reference token + // (will eventually be 0 if slash == std::string::npos) + start = (slash == std::string::npos) ? 0 : slash + 1, + // find next slash + slash = reference_string.find_first_of('/', start)) + { + // use the text between the beginning of the reference token + // (start) and the last slash (slash). + auto reference_token = reference_string.substr(start, slash - start); + + // check reference tokens are properly escaped + for (std::size_t pos = reference_token.find_first_of('~'); + pos != std::string::npos; + pos = reference_token.find_first_of('~', pos + 1)) + { + JSON_ASSERT(reference_token[pos] == '~'); + + // ~ must be followed by 0 or 1 + if (JSON_HEDLEY_UNLIKELY(pos == reference_token.size() - 1 || + (reference_token[pos + 1] != '0' && + reference_token[pos + 1] != '1'))) + { + JSON_THROW(detail::parse_error::create(108, 0, "escape character '~' must be followed with '0' or '1'", BasicJsonType())); + } + } + + // finally, store the reference token + detail::unescape(reference_token); + result.push_back(reference_token); + } + + return result; + } + + private: + /*! + @param[in] reference_string the reference string to the current value + @param[in] value the value to consider + @param[in,out] result the result object to insert values to + + @note Empty objects or arrays are flattened to `null`. + */ + static void flatten(const std::string& reference_string, + const BasicJsonType& value, + BasicJsonType& result) + { + switch (value.type()) + { + case detail::value_t::array: + { + if (value.m_value.array->empty()) + { + // flatten empty array as null + result[reference_string] = nullptr; + } + else + { + // iterate array and use index as reference string + for (std::size_t i = 0; i < value.m_value.array->size(); ++i) + { + flatten(reference_string + "/" + std::to_string(i), + value.m_value.array->operator[](i), result); + } + } + break; + } + + case detail::value_t::object: + { + if (value.m_value.object->empty()) + { + // flatten empty object as null + result[reference_string] = nullptr; + } + else + { + // iterate object and use keys as reference string + for (const auto& element : *value.m_value.object) + { + flatten(reference_string + "/" + detail::escape(element.first), element.second, result); + } + } + break; + } + + case detail::value_t::null: + case detail::value_t::string: + case detail::value_t::boolean: + case detail::value_t::number_integer: + case detail::value_t::number_unsigned: + case detail::value_t::number_float: + case detail::value_t::binary: + case detail::value_t::discarded: + default: + { + // add primitive value with its reference string + result[reference_string] = value; + break; + } + } + } + + /*! + @param[in] value flattened JSON + + @return unflattened JSON + + @throw parse_error.109 if array index is not a number + @throw type_error.314 if value is not an object + @throw type_error.315 if object values are not primitive + @throw type_error.313 if value cannot be unflattened + */ + static BasicJsonType + unflatten(const BasicJsonType& value) + { + if (JSON_HEDLEY_UNLIKELY(!value.is_object())) + { + JSON_THROW(detail::type_error::create(314, "only objects can be unflattened", value)); + } + + BasicJsonType result; + + // iterate the JSON object values + for (const auto& element : *value.m_value.object) + { + if (JSON_HEDLEY_UNLIKELY(!element.second.is_primitive())) + { + JSON_THROW(detail::type_error::create(315, "values in object must be primitive", element.second)); + } + + // assign value to reference pointed to by JSON pointer; Note that if + // the JSON pointer is "" (i.e., points to the whole value), function + // get_and_create returns a reference to result itself. An assignment + // will then create a primitive value. + json_pointer(element.first).get_and_create(result) = element.second; + } + + return result; + } + + /*! + @brief compares two JSON pointers for equality + + @param[in] lhs JSON pointer to compare + @param[in] rhs JSON pointer to compare + @return whether @a lhs is equal to @a rhs + + @complexity Linear in the length of the JSON pointer + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + */ + friend bool operator==(json_pointer const& lhs, + json_pointer const& rhs) noexcept + { + return lhs.reference_tokens == rhs.reference_tokens; + } + + /*! + @brief compares two JSON pointers for inequality + + @param[in] lhs JSON pointer to compare + @param[in] rhs JSON pointer to compare + @return whether @a lhs is not equal @a rhs + + @complexity Linear in the length of the JSON pointer + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + */ + friend bool operator!=(json_pointer const& lhs, + json_pointer const& rhs) noexcept + { + return !(lhs == rhs); + } + + /// the reference tokens + std::vector reference_tokens; +}; +} // namespace nlohmann + +// #include + + +#include +#include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +template +class json_ref +{ + public: + using value_type = BasicJsonType; + + json_ref(value_type&& value) + : owned_value(std::move(value)) + {} + + json_ref(const value_type& value) + : value_ref(&value) + {} + + json_ref(std::initializer_list init) + : owned_value(init) + {} + + template < + class... Args, + enable_if_t::value, int> = 0 > + json_ref(Args && ... args) + : owned_value(std::forward(args)...) + {} + + // class should be movable only + json_ref(json_ref&&) noexcept = default; + json_ref(const json_ref&) = delete; + json_ref& operator=(const json_ref&) = delete; + json_ref& operator=(json_ref&&) = delete; + ~json_ref() = default; + + value_type moved_or_copied() const + { + if (value_ref == nullptr) + { + return std::move(owned_value); + } + return *value_ref; + } + + value_type const& operator*() const + { + return value_ref ? *value_ref : owned_value; + } + + value_type const* operator->() const + { + return &** this; + } + + private: + mutable value_type owned_value = nullptr; + value_type const* value_ref = nullptr; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + +// #include + +// #include + +// #include + + +#include // reverse +#include // array +#include // isnan, isinf +#include // uint8_t, uint16_t, uint32_t, uint64_t +#include // memcpy +#include // numeric_limits +#include // string +#include // move + +// #include + +// #include + +// #include + + +#include // copy +#include // size_t +#include // back_inserter +#include // shared_ptr, make_shared +#include // basic_string +#include // vector + +#ifndef JSON_NO_IO + #include // streamsize + #include // basic_ostream +#endif // JSON_NO_IO + +// #include + + +namespace nlohmann +{ +namespace detail +{ +/// abstract output adapter interface +template struct output_adapter_protocol +{ + virtual void write_character(CharType c) = 0; + virtual void write_characters(const CharType* s, std::size_t length) = 0; + virtual ~output_adapter_protocol() = default; + + output_adapter_protocol() = default; + output_adapter_protocol(const output_adapter_protocol&) = default; + output_adapter_protocol(output_adapter_protocol&&) noexcept = default; + output_adapter_protocol& operator=(const output_adapter_protocol&) = default; + output_adapter_protocol& operator=(output_adapter_protocol&&) noexcept = default; +}; + +/// a type to simplify interfaces +template +using output_adapter_t = std::shared_ptr>; + +/// output adapter for byte vectors +template +class output_vector_adapter : public output_adapter_protocol +{ + public: + explicit output_vector_adapter(std::vector& vec) noexcept + : v(vec) + {} + + void write_character(CharType c) override + { + v.push_back(c); + } + + JSON_HEDLEY_NON_NULL(2) + void write_characters(const CharType* s, std::size_t length) override + { + std::copy(s, s + length, std::back_inserter(v)); + } + + private: + std::vector& v; +}; + +#ifndef JSON_NO_IO +/// output adapter for output streams +template +class output_stream_adapter : public output_adapter_protocol +{ + public: + explicit output_stream_adapter(std::basic_ostream& s) noexcept + : stream(s) + {} + + void write_character(CharType c) override + { + stream.put(c); + } + + JSON_HEDLEY_NON_NULL(2) + void write_characters(const CharType* s, std::size_t length) override + { + stream.write(s, static_cast(length)); + } + + private: + std::basic_ostream& stream; +}; +#endif // JSON_NO_IO + +/// output adapter for basic_string +template> +class output_string_adapter : public output_adapter_protocol +{ + public: + explicit output_string_adapter(StringType& s) noexcept + : str(s) + {} + + void write_character(CharType c) override + { + str.push_back(c); + } + + JSON_HEDLEY_NON_NULL(2) + void write_characters(const CharType* s, std::size_t length) override + { + str.append(s, length); + } + + private: + StringType& str; +}; + +template> +class output_adapter +{ + public: + output_adapter(std::vector& vec) + : oa(std::make_shared>(vec)) {} + +#ifndef JSON_NO_IO + output_adapter(std::basic_ostream& s) + : oa(std::make_shared>(s)) {} +#endif // JSON_NO_IO + + output_adapter(StringType& s) + : oa(std::make_shared>(s)) {} + + operator output_adapter_t() + { + return oa; + } + + private: + output_adapter_t oa = nullptr; +}; +} // namespace detail +} // namespace nlohmann + + +namespace nlohmann +{ +namespace detail +{ +/////////////////// +// binary writer // +/////////////////// + +/*! +@brief serialization to CBOR and MessagePack values +*/ +template +class binary_writer +{ + using string_t = typename BasicJsonType::string_t; + using binary_t = typename BasicJsonType::binary_t; + using number_float_t = typename BasicJsonType::number_float_t; + + public: + /*! + @brief create a binary writer + + @param[in] adapter output adapter to write to + */ + explicit binary_writer(output_adapter_t adapter) : oa(std::move(adapter)) + { + JSON_ASSERT(oa); + } + + /*! + @param[in] j JSON value to serialize + @pre j.type() == value_t::object + */ + void write_bson(const BasicJsonType& j) + { + switch (j.type()) + { + case value_t::object: + { + write_bson_object(*j.m_value.object); + break; + } + + case value_t::null: + case value_t::array: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + JSON_THROW(type_error::create(317, "to serialize to BSON, top-level type must be object, but is " + std::string(j.type_name()), j)); + } + } + } + + /*! + @param[in] j JSON value to serialize + */ + void write_cbor(const BasicJsonType& j) + { + switch (j.type()) + { + case value_t::null: + { + oa->write_character(to_char_type(0xF6)); + break; + } + + case value_t::boolean: + { + oa->write_character(j.m_value.boolean + ? to_char_type(0xF5) + : to_char_type(0xF4)); + break; + } + + case value_t::number_integer: + { + if (j.m_value.number_integer >= 0) + { + // CBOR does not differentiate between positive signed + // integers and unsigned integers. Therefore, we used the + // code from the value_t::number_unsigned case here. + if (j.m_value.number_integer <= 0x17) + { + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_integer <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x18)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_integer <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x19)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_integer <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x1A)); + write_number(static_cast(j.m_value.number_integer)); + } + else + { + oa->write_character(to_char_type(0x1B)); + write_number(static_cast(j.m_value.number_integer)); + } + } + else + { + // The conversions below encode the sign in the first + // byte, and the value is converted to a positive number. + const auto positive_number = -1 - j.m_value.number_integer; + if (j.m_value.number_integer >= -24) + { + write_number(static_cast(0x20 + positive_number)); + } + else if (positive_number <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x38)); + write_number(static_cast(positive_number)); + } + else if (positive_number <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x39)); + write_number(static_cast(positive_number)); + } + else if (positive_number <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x3A)); + write_number(static_cast(positive_number)); + } + else + { + oa->write_character(to_char_type(0x3B)); + write_number(static_cast(positive_number)); + } + } + break; + } + + case value_t::number_unsigned: + { + if (j.m_value.number_unsigned <= 0x17) + { + write_number(static_cast(j.m_value.number_unsigned)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x18)); + write_number(static_cast(j.m_value.number_unsigned)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x19)); + write_number(static_cast(j.m_value.number_unsigned)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x1A)); + write_number(static_cast(j.m_value.number_unsigned)); + } + else + { + oa->write_character(to_char_type(0x1B)); + write_number(static_cast(j.m_value.number_unsigned)); + } + break; + } + + case value_t::number_float: + { + if (std::isnan(j.m_value.number_float)) + { + // NaN is 0xf97e00 in CBOR + oa->write_character(to_char_type(0xF9)); + oa->write_character(to_char_type(0x7E)); + oa->write_character(to_char_type(0x00)); + } + else if (std::isinf(j.m_value.number_float)) + { + // Infinity is 0xf97c00, -Infinity is 0xf9fc00 + oa->write_character(to_char_type(0xf9)); + oa->write_character(j.m_value.number_float > 0 ? to_char_type(0x7C) : to_char_type(0xFC)); + oa->write_character(to_char_type(0x00)); + } + else + { + write_compact_float(j.m_value.number_float, detail::input_format_t::cbor); + } + break; + } + + case value_t::string: + { + // step 1: write control byte and the string length + const auto N = j.m_value.string->size(); + if (N <= 0x17) + { + write_number(static_cast(0x60 + N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x78)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x79)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x7A)); + write_number(static_cast(N)); + } + // LCOV_EXCL_START + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x7B)); + write_number(static_cast(N)); + } + // LCOV_EXCL_STOP + + // step 2: write the string + oa->write_characters( + reinterpret_cast(j.m_value.string->c_str()), + j.m_value.string->size()); + break; + } + + case value_t::array: + { + // step 1: write control byte and the array size + const auto N = j.m_value.array->size(); + if (N <= 0x17) + { + write_number(static_cast(0x80 + N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x98)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x99)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x9A)); + write_number(static_cast(N)); + } + // LCOV_EXCL_START + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x9B)); + write_number(static_cast(N)); + } + // LCOV_EXCL_STOP + + // step 2: write each element + for (const auto& el : *j.m_value.array) + { + write_cbor(el); + } + break; + } + + case value_t::binary: + { + if (j.m_value.binary->has_subtype()) + { + if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) + { + write_number(static_cast(0xd8)); + write_number(static_cast(j.m_value.binary->subtype())); + } + else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) + { + write_number(static_cast(0xd9)); + write_number(static_cast(j.m_value.binary->subtype())); + } + else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) + { + write_number(static_cast(0xda)); + write_number(static_cast(j.m_value.binary->subtype())); + } + else if (j.m_value.binary->subtype() <= (std::numeric_limits::max)()) + { + write_number(static_cast(0xdb)); + write_number(static_cast(j.m_value.binary->subtype())); + } + } + + // step 1: write control byte and the binary array size + const auto N = j.m_value.binary->size(); + if (N <= 0x17) + { + write_number(static_cast(0x40 + N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x58)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x59)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x5A)); + write_number(static_cast(N)); + } + // LCOV_EXCL_START + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0x5B)); + write_number(static_cast(N)); + } + // LCOV_EXCL_STOP + + // step 2: write each element + oa->write_characters( + reinterpret_cast(j.m_value.binary->data()), + N); + + break; + } + + case value_t::object: + { + // step 1: write control byte and the object size + const auto N = j.m_value.object->size(); + if (N <= 0x17) + { + write_number(static_cast(0xA0 + N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0xB8)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0xB9)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0xBA)); + write_number(static_cast(N)); + } + // LCOV_EXCL_START + else if (N <= (std::numeric_limits::max)()) + { + oa->write_character(to_char_type(0xBB)); + write_number(static_cast(N)); + } + // LCOV_EXCL_STOP + + // step 2: write each element + for (const auto& el : *j.m_value.object) + { + write_cbor(el.first); + write_cbor(el.second); + } + break; + } + + case value_t::discarded: + default: + break; + } + } + + /*! + @param[in] j JSON value to serialize + */ + void write_msgpack(const BasicJsonType& j) + { + switch (j.type()) + { + case value_t::null: // nil + { + oa->write_character(to_char_type(0xC0)); + break; + } + + case value_t::boolean: // true and false + { + oa->write_character(j.m_value.boolean + ? to_char_type(0xC3) + : to_char_type(0xC2)); + break; + } + + case value_t::number_integer: + { + if (j.m_value.number_integer >= 0) + { + // MessagePack does not differentiate between positive + // signed integers and unsigned integers. Therefore, we used + // the code from the value_t::number_unsigned case here. + if (j.m_value.number_unsigned < 128) + { + // positive fixnum + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 8 + oa->write_character(to_char_type(0xCC)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 16 + oa->write_character(to_char_type(0xCD)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 32 + oa->write_character(to_char_type(0xCE)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 64 + oa->write_character(to_char_type(0xCF)); + write_number(static_cast(j.m_value.number_integer)); + } + } + else + { + if (j.m_value.number_integer >= -32) + { + // negative fixnum + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_integer >= (std::numeric_limits::min)() && + j.m_value.number_integer <= (std::numeric_limits::max)()) + { + // int 8 + oa->write_character(to_char_type(0xD0)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_integer >= (std::numeric_limits::min)() && + j.m_value.number_integer <= (std::numeric_limits::max)()) + { + // int 16 + oa->write_character(to_char_type(0xD1)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_integer >= (std::numeric_limits::min)() && + j.m_value.number_integer <= (std::numeric_limits::max)()) + { + // int 32 + oa->write_character(to_char_type(0xD2)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_integer >= (std::numeric_limits::min)() && + j.m_value.number_integer <= (std::numeric_limits::max)()) + { + // int 64 + oa->write_character(to_char_type(0xD3)); + write_number(static_cast(j.m_value.number_integer)); + } + } + break; + } + + case value_t::number_unsigned: + { + if (j.m_value.number_unsigned < 128) + { + // positive fixnum + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 8 + oa->write_character(to_char_type(0xCC)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 16 + oa->write_character(to_char_type(0xCD)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 32 + oa->write_character(to_char_type(0xCE)); + write_number(static_cast(j.m_value.number_integer)); + } + else if (j.m_value.number_unsigned <= (std::numeric_limits::max)()) + { + // uint 64 + oa->write_character(to_char_type(0xCF)); + write_number(static_cast(j.m_value.number_integer)); + } + break; + } + + case value_t::number_float: + { + write_compact_float(j.m_value.number_float, detail::input_format_t::msgpack); + break; + } + + case value_t::string: + { + // step 1: write control byte and the string length + const auto N = j.m_value.string->size(); + if (N <= 31) + { + // fixstr + write_number(static_cast(0xA0 | N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // str 8 + oa->write_character(to_char_type(0xD9)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // str 16 + oa->write_character(to_char_type(0xDA)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // str 32 + oa->write_character(to_char_type(0xDB)); + write_number(static_cast(N)); + } + + // step 2: write the string + oa->write_characters( + reinterpret_cast(j.m_value.string->c_str()), + j.m_value.string->size()); + break; + } + + case value_t::array: + { + // step 1: write control byte and the array size + const auto N = j.m_value.array->size(); + if (N <= 15) + { + // fixarray + write_number(static_cast(0x90 | N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // array 16 + oa->write_character(to_char_type(0xDC)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // array 32 + oa->write_character(to_char_type(0xDD)); + write_number(static_cast(N)); + } + + // step 2: write each element + for (const auto& el : *j.m_value.array) + { + write_msgpack(el); + } + break; + } + + case value_t::binary: + { + // step 0: determine if the binary type has a set subtype to + // determine whether or not to use the ext or fixext types + const bool use_ext = j.m_value.binary->has_subtype(); + + // step 1: write control byte and the byte string length + const auto N = j.m_value.binary->size(); + if (N <= (std::numeric_limits::max)()) + { + std::uint8_t output_type{}; + bool fixed = true; + if (use_ext) + { + switch (N) + { + case 1: + output_type = 0xD4; // fixext 1 + break; + case 2: + output_type = 0xD5; // fixext 2 + break; + case 4: + output_type = 0xD6; // fixext 4 + break; + case 8: + output_type = 0xD7; // fixext 8 + break; + case 16: + output_type = 0xD8; // fixext 16 + break; + default: + output_type = 0xC7; // ext 8 + fixed = false; + break; + } + + } + else + { + output_type = 0xC4; // bin 8 + fixed = false; + } + + oa->write_character(to_char_type(output_type)); + if (!fixed) + { + write_number(static_cast(N)); + } + } + else if (N <= (std::numeric_limits::max)()) + { + std::uint8_t output_type = use_ext + ? 0xC8 // ext 16 + : 0xC5; // bin 16 + + oa->write_character(to_char_type(output_type)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + std::uint8_t output_type = use_ext + ? 0xC9 // ext 32 + : 0xC6; // bin 32 + + oa->write_character(to_char_type(output_type)); + write_number(static_cast(N)); + } + + // step 1.5: if this is an ext type, write the subtype + if (use_ext) + { + write_number(static_cast(j.m_value.binary->subtype())); + } + + // step 2: write the byte string + oa->write_characters( + reinterpret_cast(j.m_value.binary->data()), + N); + + break; + } + + case value_t::object: + { + // step 1: write control byte and the object size + const auto N = j.m_value.object->size(); + if (N <= 15) + { + // fixmap + write_number(static_cast(0x80 | (N & 0xF))); + } + else if (N <= (std::numeric_limits::max)()) + { + // map 16 + oa->write_character(to_char_type(0xDE)); + write_number(static_cast(N)); + } + else if (N <= (std::numeric_limits::max)()) + { + // map 32 + oa->write_character(to_char_type(0xDF)); + write_number(static_cast(N)); + } + + // step 2: write each element + for (const auto& el : *j.m_value.object) + { + write_msgpack(el.first); + write_msgpack(el.second); + } + break; + } + + case value_t::discarded: + default: + break; + } + } + + /*! + @param[in] j JSON value to serialize + @param[in] use_count whether to use '#' prefixes (optimized format) + @param[in] use_type whether to use '$' prefixes (optimized format) + @param[in] add_prefix whether prefixes need to be used for this value + */ + void write_ubjson(const BasicJsonType& j, const bool use_count, + const bool use_type, const bool add_prefix = true) + { + switch (j.type()) + { + case value_t::null: + { + if (add_prefix) + { + oa->write_character(to_char_type('Z')); + } + break; + } + + case value_t::boolean: + { + if (add_prefix) + { + oa->write_character(j.m_value.boolean + ? to_char_type('T') + : to_char_type('F')); + } + break; + } + + case value_t::number_integer: + { + write_number_with_ubjson_prefix(j.m_value.number_integer, add_prefix); + break; + } + + case value_t::number_unsigned: + { + write_number_with_ubjson_prefix(j.m_value.number_unsigned, add_prefix); + break; + } + + case value_t::number_float: + { + write_number_with_ubjson_prefix(j.m_value.number_float, add_prefix); + break; + } + + case value_t::string: + { + if (add_prefix) + { + oa->write_character(to_char_type('S')); + } + write_number_with_ubjson_prefix(j.m_value.string->size(), true); + oa->write_characters( + reinterpret_cast(j.m_value.string->c_str()), + j.m_value.string->size()); + break; + } + + case value_t::array: + { + if (add_prefix) + { + oa->write_character(to_char_type('[')); + } + + bool prefix_required = true; + if (use_type && !j.m_value.array->empty()) + { + JSON_ASSERT(use_count); + const CharType first_prefix = ubjson_prefix(j.front()); + const bool same_prefix = std::all_of(j.begin() + 1, j.end(), + [this, first_prefix](const BasicJsonType & v) + { + return ubjson_prefix(v) == first_prefix; + }); + + if (same_prefix) + { + prefix_required = false; + oa->write_character(to_char_type('$')); + oa->write_character(first_prefix); + } + } + + if (use_count) + { + oa->write_character(to_char_type('#')); + write_number_with_ubjson_prefix(j.m_value.array->size(), true); + } + + for (const auto& el : *j.m_value.array) + { + write_ubjson(el, use_count, use_type, prefix_required); + } + + if (!use_count) + { + oa->write_character(to_char_type(']')); + } + + break; + } + + case value_t::binary: + { + if (add_prefix) + { + oa->write_character(to_char_type('[')); + } + + if (use_type && !j.m_value.binary->empty()) + { + JSON_ASSERT(use_count); + oa->write_character(to_char_type('$')); + oa->write_character('U'); + } + + if (use_count) + { + oa->write_character(to_char_type('#')); + write_number_with_ubjson_prefix(j.m_value.binary->size(), true); + } + + if (use_type) + { + oa->write_characters( + reinterpret_cast(j.m_value.binary->data()), + j.m_value.binary->size()); + } + else + { + for (size_t i = 0; i < j.m_value.binary->size(); ++i) + { + oa->write_character(to_char_type('U')); + oa->write_character(j.m_value.binary->data()[i]); + } + } + + if (!use_count) + { + oa->write_character(to_char_type(']')); + } + + break; + } + + case value_t::object: + { + if (add_prefix) + { + oa->write_character(to_char_type('{')); + } + + bool prefix_required = true; + if (use_type && !j.m_value.object->empty()) + { + JSON_ASSERT(use_count); + const CharType first_prefix = ubjson_prefix(j.front()); + const bool same_prefix = std::all_of(j.begin(), j.end(), + [this, first_prefix](const BasicJsonType & v) + { + return ubjson_prefix(v) == first_prefix; + }); + + if (same_prefix) + { + prefix_required = false; + oa->write_character(to_char_type('$')); + oa->write_character(first_prefix); + } + } + + if (use_count) + { + oa->write_character(to_char_type('#')); + write_number_with_ubjson_prefix(j.m_value.object->size(), true); + } + + for (const auto& el : *j.m_value.object) + { + write_number_with_ubjson_prefix(el.first.size(), true); + oa->write_characters( + reinterpret_cast(el.first.c_str()), + el.first.size()); + write_ubjson(el.second, use_count, use_type, prefix_required); + } + + if (!use_count) + { + oa->write_character(to_char_type('}')); + } + + break; + } + + case value_t::discarded: + default: + break; + } + } + + private: + ////////// + // BSON // + ////////// + + /*! + @return The size of a BSON document entry header, including the id marker + and the entry name size (and its null-terminator). + */ + static std::size_t calc_bson_entry_header_size(const string_t& name, const BasicJsonType& j) + { + const auto it = name.find(static_cast(0)); + if (JSON_HEDLEY_UNLIKELY(it != BasicJsonType::string_t::npos)) + { + JSON_THROW(out_of_range::create(409, "BSON key cannot contain code point U+0000 (at byte " + std::to_string(it) + ")", j)); + static_cast(j); + } + + return /*id*/ 1ul + name.size() + /*zero-terminator*/1u; + } + + /*! + @brief Writes the given @a element_type and @a name to the output adapter + */ + void write_bson_entry_header(const string_t& name, + const std::uint8_t element_type) + { + oa->write_character(to_char_type(element_type)); // boolean + oa->write_characters( + reinterpret_cast(name.c_str()), + name.size() + 1u); + } + + /*! + @brief Writes a BSON element with key @a name and boolean value @a value + */ + void write_bson_boolean(const string_t& name, + const bool value) + { + write_bson_entry_header(name, 0x08); + oa->write_character(value ? to_char_type(0x01) : to_char_type(0x00)); + } + + /*! + @brief Writes a BSON element with key @a name and double value @a value + */ + void write_bson_double(const string_t& name, + const double value) + { + write_bson_entry_header(name, 0x01); + write_number(value); + } + + /*! + @return The size of the BSON-encoded string in @a value + */ + static std::size_t calc_bson_string_size(const string_t& value) + { + return sizeof(std::int32_t) + value.size() + 1ul; + } + + /*! + @brief Writes a BSON element with key @a name and string value @a value + */ + void write_bson_string(const string_t& name, + const string_t& value) + { + write_bson_entry_header(name, 0x02); + + write_number(static_cast(value.size() + 1ul)); + oa->write_characters( + reinterpret_cast(value.c_str()), + value.size() + 1); + } + + /*! + @brief Writes a BSON element with key @a name and null value + */ + void write_bson_null(const string_t& name) + { + write_bson_entry_header(name, 0x0A); + } + + /*! + @return The size of the BSON-encoded integer @a value + */ + static std::size_t calc_bson_integer_size(const std::int64_t value) + { + return (std::numeric_limits::min)() <= value && value <= (std::numeric_limits::max)() + ? sizeof(std::int32_t) + : sizeof(std::int64_t); + } + + /*! + @brief Writes a BSON element with key @a name and integer @a value + */ + void write_bson_integer(const string_t& name, + const std::int64_t value) + { + if ((std::numeric_limits::min)() <= value && value <= (std::numeric_limits::max)()) + { + write_bson_entry_header(name, 0x10); // int32 + write_number(static_cast(value)); + } + else + { + write_bson_entry_header(name, 0x12); // int64 + write_number(static_cast(value)); + } + } + + /*! + @return The size of the BSON-encoded unsigned integer in @a j + */ + static constexpr std::size_t calc_bson_unsigned_size(const std::uint64_t value) noexcept + { + return (value <= static_cast((std::numeric_limits::max)())) + ? sizeof(std::int32_t) + : sizeof(std::int64_t); + } + + /*! + @brief Writes a BSON element with key @a name and unsigned @a value + */ + void write_bson_unsigned(const string_t& name, + const BasicJsonType& j) + { + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + write_bson_entry_header(name, 0x10 /* int32 */); + write_number(static_cast(j.m_value.number_unsigned)); + } + else if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + write_bson_entry_header(name, 0x12 /* int64 */); + write_number(static_cast(j.m_value.number_unsigned)); + } + else + { + JSON_THROW(out_of_range::create(407, "integer number " + std::to_string(j.m_value.number_unsigned) + " cannot be represented by BSON as it does not fit int64", j)); + } + } + + /*! + @brief Writes a BSON element with key @a name and object @a value + */ + void write_bson_object_entry(const string_t& name, + const typename BasicJsonType::object_t& value) + { + write_bson_entry_header(name, 0x03); // object + write_bson_object(value); + } + + /*! + @return The size of the BSON-encoded array @a value + */ + static std::size_t calc_bson_array_size(const typename BasicJsonType::array_t& value) + { + std::size_t array_index = 0ul; + + const std::size_t embedded_document_size = std::accumulate(std::begin(value), std::end(value), std::size_t(0), [&array_index](std::size_t result, const typename BasicJsonType::array_t::value_type & el) + { + return result + calc_bson_element_size(std::to_string(array_index++), el); + }); + + return sizeof(std::int32_t) + embedded_document_size + 1ul; + } + + /*! + @return The size of the BSON-encoded binary array @a value + */ + static std::size_t calc_bson_binary_size(const typename BasicJsonType::binary_t& value) + { + return sizeof(std::int32_t) + value.size() + 1ul; + } + + /*! + @brief Writes a BSON element with key @a name and array @a value + */ + void write_bson_array(const string_t& name, + const typename BasicJsonType::array_t& value) + { + write_bson_entry_header(name, 0x04); // array + write_number(static_cast(calc_bson_array_size(value))); + + std::size_t array_index = 0ul; + + for (const auto& el : value) + { + write_bson_element(std::to_string(array_index++), el); + } + + oa->write_character(to_char_type(0x00)); + } + + /*! + @brief Writes a BSON element with key @a name and binary value @a value + */ + void write_bson_binary(const string_t& name, + const binary_t& value) + { + write_bson_entry_header(name, 0x05); + + write_number(static_cast(value.size())); + write_number(value.has_subtype() ? static_cast(value.subtype()) : std::uint8_t(0x00)); + + oa->write_characters(reinterpret_cast(value.data()), value.size()); + } + + /*! + @brief Calculates the size necessary to serialize the JSON value @a j with its @a name + @return The calculated size for the BSON document entry for @a j with the given @a name. + */ + static std::size_t calc_bson_element_size(const string_t& name, + const BasicJsonType& j) + { + const auto header_size = calc_bson_entry_header_size(name, j); + switch (j.type()) + { + case value_t::object: + return header_size + calc_bson_object_size(*j.m_value.object); + + case value_t::array: + return header_size + calc_bson_array_size(*j.m_value.array); + + case value_t::binary: + return header_size + calc_bson_binary_size(*j.m_value.binary); + + case value_t::boolean: + return header_size + 1ul; + + case value_t::number_float: + return header_size + 8ul; + + case value_t::number_integer: + return header_size + calc_bson_integer_size(j.m_value.number_integer); + + case value_t::number_unsigned: + return header_size + calc_bson_unsigned_size(j.m_value.number_unsigned); + + case value_t::string: + return header_size + calc_bson_string_size(*j.m_value.string); + + case value_t::null: + return header_size + 0ul; + + // LCOV_EXCL_START + case value_t::discarded: + default: + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) + return 0ul; + // LCOV_EXCL_STOP + } + } + + /*! + @brief Serializes the JSON value @a j to BSON and associates it with the + key @a name. + @param name The name to associate with the JSON entity @a j within the + current BSON document + */ + void write_bson_element(const string_t& name, + const BasicJsonType& j) + { + switch (j.type()) + { + case value_t::object: + return write_bson_object_entry(name, *j.m_value.object); + + case value_t::array: + return write_bson_array(name, *j.m_value.array); + + case value_t::binary: + return write_bson_binary(name, *j.m_value.binary); + + case value_t::boolean: + return write_bson_boolean(name, j.m_value.boolean); + + case value_t::number_float: + return write_bson_double(name, j.m_value.number_float); + + case value_t::number_integer: + return write_bson_integer(name, j.m_value.number_integer); + + case value_t::number_unsigned: + return write_bson_unsigned(name, j); + + case value_t::string: + return write_bson_string(name, *j.m_value.string); + + case value_t::null: + return write_bson_null(name); + + // LCOV_EXCL_START + case value_t::discarded: + default: + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) + return; + // LCOV_EXCL_STOP + } + } + + /*! + @brief Calculates the size of the BSON serialization of the given + JSON-object @a j. + @param[in] value JSON value to serialize + @pre value.type() == value_t::object + */ + static std::size_t calc_bson_object_size(const typename BasicJsonType::object_t& value) + { + std::size_t document_size = std::accumulate(value.begin(), value.end(), std::size_t(0), + [](size_t result, const typename BasicJsonType::object_t::value_type & el) + { + return result += calc_bson_element_size(el.first, el.second); + }); + + return sizeof(std::int32_t) + document_size + 1ul; + } + + /*! + @param[in] value JSON value to serialize + @pre value.type() == value_t::object + */ + void write_bson_object(const typename BasicJsonType::object_t& value) + { + write_number(static_cast(calc_bson_object_size(value))); + + for (const auto& el : value) + { + write_bson_element(el.first, el.second); + } + + oa->write_character(to_char_type(0x00)); + } + + ////////// + // CBOR // + ////////// + + static constexpr CharType get_cbor_float_prefix(float /*unused*/) + { + return to_char_type(0xFA); // Single-Precision Float + } + + static constexpr CharType get_cbor_float_prefix(double /*unused*/) + { + return to_char_type(0xFB); // Double-Precision Float + } + + ///////////// + // MsgPack // + ///////////// + + static constexpr CharType get_msgpack_float_prefix(float /*unused*/) + { + return to_char_type(0xCA); // float 32 + } + + static constexpr CharType get_msgpack_float_prefix(double /*unused*/) + { + return to_char_type(0xCB); // float 64 + } + + //////////// + // UBJSON // + //////////// + + // UBJSON: write number (floating point) + template::value, int>::type = 0> + void write_number_with_ubjson_prefix(const NumberType n, + const bool add_prefix) + { + if (add_prefix) + { + oa->write_character(get_ubjson_float_prefix(n)); + } + write_number(n); + } + + // UBJSON: write number (unsigned integer) + template::value, int>::type = 0> + void write_number_with_ubjson_prefix(const NumberType n, + const bool add_prefix) + { + if (n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('i')); // int8 + } + write_number(static_cast(n)); + } + else if (n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('U')); // uint8 + } + write_number(static_cast(n)); + } + else if (n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('I')); // int16 + } + write_number(static_cast(n)); + } + else if (n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('l')); // int32 + } + write_number(static_cast(n)); + } + else if (n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('L')); // int64 + } + write_number(static_cast(n)); + } + else + { + if (add_prefix) + { + oa->write_character(to_char_type('H')); // high-precision number + } + + const auto number = BasicJsonType(n).dump(); + write_number_with_ubjson_prefix(number.size(), true); + for (std::size_t i = 0; i < number.size(); ++i) + { + oa->write_character(to_char_type(static_cast(number[i]))); + } + } + } + + // UBJSON: write number (signed integer) + template < typename NumberType, typename std::enable_if < + std::is_signed::value&& + !std::is_floating_point::value, int >::type = 0 > + void write_number_with_ubjson_prefix(const NumberType n, + const bool add_prefix) + { + if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('i')); // int8 + } + write_number(static_cast(n)); + } + else if (static_cast((std::numeric_limits::min)()) <= n && n <= static_cast((std::numeric_limits::max)())) + { + if (add_prefix) + { + oa->write_character(to_char_type('U')); // uint8 + } + write_number(static_cast(n)); + } + else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('I')); // int16 + } + write_number(static_cast(n)); + } + else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('l')); // int32 + } + write_number(static_cast(n)); + } + else if ((std::numeric_limits::min)() <= n && n <= (std::numeric_limits::max)()) + { + if (add_prefix) + { + oa->write_character(to_char_type('L')); // int64 + } + write_number(static_cast(n)); + } + // LCOV_EXCL_START + else + { + if (add_prefix) + { + oa->write_character(to_char_type('H')); // high-precision number + } + + const auto number = BasicJsonType(n).dump(); + write_number_with_ubjson_prefix(number.size(), true); + for (std::size_t i = 0; i < number.size(); ++i) + { + oa->write_character(to_char_type(static_cast(number[i]))); + } + } + // LCOV_EXCL_STOP + } + + /*! + @brief determine the type prefix of container values + */ + CharType ubjson_prefix(const BasicJsonType& j) const noexcept + { + switch (j.type()) + { + case value_t::null: + return 'Z'; + + case value_t::boolean: + return j.m_value.boolean ? 'T' : 'F'; + + case value_t::number_integer: + { + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'i'; + } + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'U'; + } + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'I'; + } + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'l'; + } + if ((std::numeric_limits::min)() <= j.m_value.number_integer && j.m_value.number_integer <= (std::numeric_limits::max)()) + { + return 'L'; + } + // anything else is treated as high-precision number + return 'H'; // LCOV_EXCL_LINE + } + + case value_t::number_unsigned: + { + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'i'; + } + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'U'; + } + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'I'; + } + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'l'; + } + if (j.m_value.number_unsigned <= static_cast((std::numeric_limits::max)())) + { + return 'L'; + } + // anything else is treated as high-precision number + return 'H'; // LCOV_EXCL_LINE + } + + case value_t::number_float: + return get_ubjson_float_prefix(j.m_value.number_float); + + case value_t::string: + return 'S'; + + case value_t::array: // fallthrough + case value_t::binary: + return '['; + + case value_t::object: + return '{'; + + case value_t::discarded: + default: // discarded values + return 'N'; + } + } + + static constexpr CharType get_ubjson_float_prefix(float /*unused*/) + { + return 'd'; // float 32 + } + + static constexpr CharType get_ubjson_float_prefix(double /*unused*/) + { + return 'D'; // float 64 + } + + /////////////////////// + // Utility functions // + /////////////////////// + + /* + @brief write a number to output input + @param[in] n number of type @a NumberType + @tparam NumberType the type of the number + @tparam OutputIsLittleEndian Set to true if output data is + required to be little endian + + @note This function needs to respect the system's endianess, because bytes + in CBOR, MessagePack, and UBJSON are stored in network order (big + endian) and therefore need reordering on little endian systems. + */ + template + void write_number(const NumberType n) + { + // step 1: write number to array of length NumberType + std::array vec{}; + std::memcpy(vec.data(), &n, sizeof(NumberType)); + + // step 2: write array to output (with possible reordering) + if (is_little_endian != OutputIsLittleEndian) + { + // reverse byte order prior to conversion if necessary + std::reverse(vec.begin(), vec.end()); + } + + oa->write_characters(vec.data(), sizeof(NumberType)); + } + + void write_compact_float(const number_float_t n, detail::input_format_t format) + { +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wfloat-equal" +#endif + if (static_cast(n) >= static_cast(std::numeric_limits::lowest()) && + static_cast(n) <= static_cast((std::numeric_limits::max)()) && + static_cast(static_cast(n)) == static_cast(n)) + { + oa->write_character(format == detail::input_format_t::cbor + ? get_cbor_float_prefix(static_cast(n)) + : get_msgpack_float_prefix(static_cast(n))); + write_number(static_cast(n)); + } + else + { + oa->write_character(format == detail::input_format_t::cbor + ? get_cbor_float_prefix(n) + : get_msgpack_float_prefix(n)); + write_number(n); + } +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + } + + public: + // The following to_char_type functions are implement the conversion + // between uint8_t and CharType. In case CharType is not unsigned, + // such a conversion is required to allow values greater than 128. + // See for a discussion. + template < typename C = CharType, + enable_if_t < std::is_signed::value && std::is_signed::value > * = nullptr > + static constexpr CharType to_char_type(std::uint8_t x) noexcept + { + return *reinterpret_cast(&x); + } + + template < typename C = CharType, + enable_if_t < std::is_signed::value && std::is_unsigned::value > * = nullptr > + static CharType to_char_type(std::uint8_t x) noexcept + { + static_assert(sizeof(std::uint8_t) == sizeof(CharType), "size of CharType must be equal to std::uint8_t"); + static_assert(std::is_trivial::value, "CharType must be trivial"); + CharType result; + std::memcpy(&result, &x, sizeof(x)); + return result; + } + + template::value>* = nullptr> + static constexpr CharType to_char_type(std::uint8_t x) noexcept + { + return x; + } + + template < typename InputCharType, typename C = CharType, + enable_if_t < + std::is_signed::value && + std::is_signed::value && + std::is_same::type>::value + > * = nullptr > + static constexpr CharType to_char_type(InputCharType x) noexcept + { + return x; + } + + private: + /// whether we can assume little endianess + const bool is_little_endian = little_endianess(); + + /// the output + output_adapter_t oa = nullptr; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + + +#include // reverse, remove, fill, find, none_of +#include // array +#include // localeconv, lconv +#include // labs, isfinite, isnan, signbit +#include // size_t, ptrdiff_t +#include // uint8_t +#include // snprintf +#include // numeric_limits +#include // string, char_traits +#include // is_same +#include // move + +// #include + + +#include // array +#include // signbit, isfinite +#include // intN_t, uintN_t +#include // memcpy, memmove +#include // numeric_limits +#include // conditional + +// #include + + +namespace nlohmann +{ +namespace detail +{ + +/*! +@brief implements the Grisu2 algorithm for binary to decimal floating-point +conversion. + +This implementation is a slightly modified version of the reference +implementation which may be obtained from +http://florian.loitsch.com/publications (bench.tar.gz). + +The code is distributed under the MIT license, Copyright (c) 2009 Florian Loitsch. + +For a detailed description of the algorithm see: + +[1] Loitsch, "Printing Floating-Point Numbers Quickly and Accurately with + Integers", Proceedings of the ACM SIGPLAN 2010 Conference on Programming + Language Design and Implementation, PLDI 2010 +[2] Burger, Dybvig, "Printing Floating-Point Numbers Quickly and Accurately", + Proceedings of the ACM SIGPLAN 1996 Conference on Programming Language + Design and Implementation, PLDI 1996 +*/ +namespace dtoa_impl +{ + +template +Target reinterpret_bits(const Source source) +{ + static_assert(sizeof(Target) == sizeof(Source), "size mismatch"); + + Target target; + std::memcpy(&target, &source, sizeof(Source)); + return target; +} + +struct diyfp // f * 2^e +{ + static constexpr int kPrecision = 64; // = q + + std::uint64_t f = 0; + int e = 0; + + constexpr diyfp(std::uint64_t f_, int e_) noexcept : f(f_), e(e_) {} + + /*! + @brief returns x - y + @pre x.e == y.e and x.f >= y.f + */ + static diyfp sub(const diyfp& x, const diyfp& y) noexcept + { + JSON_ASSERT(x.e == y.e); + JSON_ASSERT(x.f >= y.f); + + return {x.f - y.f, x.e}; + } + + /*! + @brief returns x * y + @note The result is rounded. (Only the upper q bits are returned.) + */ + static diyfp mul(const diyfp& x, const diyfp& y) noexcept + { + static_assert(kPrecision == 64, "internal error"); + + // Computes: + // f = round((x.f * y.f) / 2^q) + // e = x.e + y.e + q + + // Emulate the 64-bit * 64-bit multiplication: + // + // p = u * v + // = (u_lo + 2^32 u_hi) (v_lo + 2^32 v_hi) + // = (u_lo v_lo ) + 2^32 ((u_lo v_hi ) + (u_hi v_lo )) + 2^64 (u_hi v_hi ) + // = (p0 ) + 2^32 ((p1 ) + (p2 )) + 2^64 (p3 ) + // = (p0_lo + 2^32 p0_hi) + 2^32 ((p1_lo + 2^32 p1_hi) + (p2_lo + 2^32 p2_hi)) + 2^64 (p3 ) + // = (p0_lo ) + 2^32 (p0_hi + p1_lo + p2_lo ) + 2^64 (p1_hi + p2_hi + p3) + // = (p0_lo ) + 2^32 (Q ) + 2^64 (H ) + // = (p0_lo ) + 2^32 (Q_lo + 2^32 Q_hi ) + 2^64 (H ) + // + // (Since Q might be larger than 2^32 - 1) + // + // = (p0_lo + 2^32 Q_lo) + 2^64 (Q_hi + H) + // + // (Q_hi + H does not overflow a 64-bit int) + // + // = p_lo + 2^64 p_hi + + const std::uint64_t u_lo = x.f & 0xFFFFFFFFu; + const std::uint64_t u_hi = x.f >> 32u; + const std::uint64_t v_lo = y.f & 0xFFFFFFFFu; + const std::uint64_t v_hi = y.f >> 32u; + + const std::uint64_t p0 = u_lo * v_lo; + const std::uint64_t p1 = u_lo * v_hi; + const std::uint64_t p2 = u_hi * v_lo; + const std::uint64_t p3 = u_hi * v_hi; + + const std::uint64_t p0_hi = p0 >> 32u; + const std::uint64_t p1_lo = p1 & 0xFFFFFFFFu; + const std::uint64_t p1_hi = p1 >> 32u; + const std::uint64_t p2_lo = p2 & 0xFFFFFFFFu; + const std::uint64_t p2_hi = p2 >> 32u; + + std::uint64_t Q = p0_hi + p1_lo + p2_lo; + + // The full product might now be computed as + // + // p_hi = p3 + p2_hi + p1_hi + (Q >> 32) + // p_lo = p0_lo + (Q << 32) + // + // But in this particular case here, the full p_lo is not required. + // Effectively we only need to add the highest bit in p_lo to p_hi (and + // Q_hi + 1 does not overflow). + + Q += std::uint64_t{1} << (64u - 32u - 1u); // round, ties up + + const std::uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32u); + + return {h, x.e + y.e + 64}; + } + + /*! + @brief normalize x such that the significand is >= 2^(q-1) + @pre x.f != 0 + */ + static diyfp normalize(diyfp x) noexcept + { + JSON_ASSERT(x.f != 0); + + while ((x.f >> 63u) == 0) + { + x.f <<= 1u; + x.e--; + } + + return x; + } + + /*! + @brief normalize x such that the result has the exponent E + @pre e >= x.e and the upper e - x.e bits of x.f must be zero. + */ + static diyfp normalize_to(const diyfp& x, const int target_exponent) noexcept + { + const int delta = x.e - target_exponent; + + JSON_ASSERT(delta >= 0); + JSON_ASSERT(((x.f << delta) >> delta) == x.f); + + return {x.f << delta, target_exponent}; + } +}; + +struct boundaries +{ + diyfp w; + diyfp minus; + diyfp plus; +}; + +/*! +Compute the (normalized) diyfp representing the input number 'value' and its +boundaries. + +@pre value must be finite and positive +*/ +template +boundaries compute_boundaries(FloatType value) +{ + JSON_ASSERT(std::isfinite(value)); + JSON_ASSERT(value > 0); + + // Convert the IEEE representation into a diyfp. + // + // If v is denormal: + // value = 0.F * 2^(1 - bias) = ( F) * 2^(1 - bias - (p-1)) + // If v is normalized: + // value = 1.F * 2^(E - bias) = (2^(p-1) + F) * 2^(E - bias - (p-1)) + + static_assert(std::numeric_limits::is_iec559, + "internal error: dtoa_short requires an IEEE-754 floating-point implementation"); + + constexpr int kPrecision = std::numeric_limits::digits; // = p (includes the hidden bit) + constexpr int kBias = std::numeric_limits::max_exponent - 1 + (kPrecision - 1); + constexpr int kMinExp = 1 - kBias; + constexpr std::uint64_t kHiddenBit = std::uint64_t{1} << (kPrecision - 1); // = 2^(p-1) + + using bits_type = typename std::conditional::type; + + const auto bits = static_cast(reinterpret_bits(value)); + const std::uint64_t E = bits >> (kPrecision - 1); + const std::uint64_t F = bits & (kHiddenBit - 1); + + const bool is_denormal = E == 0; + const diyfp v = is_denormal + ? diyfp(F, kMinExp) + : diyfp(F + kHiddenBit, static_cast(E) - kBias); + + // Compute the boundaries m- and m+ of the floating-point value + // v = f * 2^e. + // + // Determine v- and v+, the floating-point predecessor and successor if v, + // respectively. + // + // v- = v - 2^e if f != 2^(p-1) or e == e_min (A) + // = v - 2^(e-1) if f == 2^(p-1) and e > e_min (B) + // + // v+ = v + 2^e + // + // Let m- = (v- + v) / 2 and m+ = (v + v+) / 2. All real numbers _strictly_ + // between m- and m+ round to v, regardless of how the input rounding + // algorithm breaks ties. + // + // ---+-------------+-------------+-------------+-------------+--- (A) + // v- m- v m+ v+ + // + // -----------------+------+------+-------------+-------------+--- (B) + // v- m- v m+ v+ + + const bool lower_boundary_is_closer = F == 0 && E > 1; + const diyfp m_plus = diyfp(2 * v.f + 1, v.e - 1); + const diyfp m_minus = lower_boundary_is_closer + ? diyfp(4 * v.f - 1, v.e - 2) // (B) + : diyfp(2 * v.f - 1, v.e - 1); // (A) + + // Determine the normalized w+ = m+. + const diyfp w_plus = diyfp::normalize(m_plus); + + // Determine w- = m- such that e_(w-) = e_(w+). + const diyfp w_minus = diyfp::normalize_to(m_minus, w_plus.e); + + return {diyfp::normalize(v), w_minus, w_plus}; +} + +// Given normalized diyfp w, Grisu needs to find a (normalized) cached +// power-of-ten c, such that the exponent of the product c * w = f * 2^e lies +// within a certain range [alpha, gamma] (Definition 3.2 from [1]) +// +// alpha <= e = e_c + e_w + q <= gamma +// +// or +// +// f_c * f_w * 2^alpha <= f_c 2^(e_c) * f_w 2^(e_w) * 2^q +// <= f_c * f_w * 2^gamma +// +// Since c and w are normalized, i.e. 2^(q-1) <= f < 2^q, this implies +// +// 2^(q-1) * 2^(q-1) * 2^alpha <= c * w * 2^q < 2^q * 2^q * 2^gamma +// +// or +// +// 2^(q - 2 + alpha) <= c * w < 2^(q + gamma) +// +// The choice of (alpha,gamma) determines the size of the table and the form of +// the digit generation procedure. Using (alpha,gamma)=(-60,-32) works out well +// in practice: +// +// The idea is to cut the number c * w = f * 2^e into two parts, which can be +// processed independently: An integral part p1, and a fractional part p2: +// +// f * 2^e = ( (f div 2^-e) * 2^-e + (f mod 2^-e) ) * 2^e +// = (f div 2^-e) + (f mod 2^-e) * 2^e +// = p1 + p2 * 2^e +// +// The conversion of p1 into decimal form requires a series of divisions and +// modulos by (a power of) 10. These operations are faster for 32-bit than for +// 64-bit integers, so p1 should ideally fit into a 32-bit integer. This can be +// achieved by choosing +// +// -e >= 32 or e <= -32 := gamma +// +// In order to convert the fractional part +// +// p2 * 2^e = p2 / 2^-e = d[-1] / 10^1 + d[-2] / 10^2 + ... +// +// into decimal form, the fraction is repeatedly multiplied by 10 and the digits +// d[-i] are extracted in order: +// +// (10 * p2) div 2^-e = d[-1] +// (10 * p2) mod 2^-e = d[-2] / 10^1 + ... +// +// The multiplication by 10 must not overflow. It is sufficient to choose +// +// 10 * p2 < 16 * p2 = 2^4 * p2 <= 2^64. +// +// Since p2 = f mod 2^-e < 2^-e, +// +// -e <= 60 or e >= -60 := alpha + +constexpr int kAlpha = -60; +constexpr int kGamma = -32; + +struct cached_power // c = f * 2^e ~= 10^k +{ + std::uint64_t f; + int e; + int k; +}; + +/*! +For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached +power-of-ten c = f_c * 2^e_c, such that the exponent of the product w * c +satisfies (Definition 3.2 from [1]) + + alpha <= e_c + e + q <= gamma. +*/ +inline cached_power get_cached_power_for_binary_exponent(int e) +{ + // Now + // + // alpha <= e_c + e + q <= gamma (1) + // ==> f_c * 2^alpha <= c * 2^e * 2^q + // + // and since the c's are normalized, 2^(q-1) <= f_c, + // + // ==> 2^(q - 1 + alpha) <= c * 2^(e + q) + // ==> 2^(alpha - e - 1) <= c + // + // If c were an exact power of ten, i.e. c = 10^k, one may determine k as + // + // k = ceil( log_10( 2^(alpha - e - 1) ) ) + // = ceil( (alpha - e - 1) * log_10(2) ) + // + // From the paper: + // "In theory the result of the procedure could be wrong since c is rounded, + // and the computation itself is approximated [...]. In practice, however, + // this simple function is sufficient." + // + // For IEEE double precision floating-point numbers converted into + // normalized diyfp's w = f * 2^e, with q = 64, + // + // e >= -1022 (min IEEE exponent) + // -52 (p - 1) + // -52 (p - 1, possibly normalize denormal IEEE numbers) + // -11 (normalize the diyfp) + // = -1137 + // + // and + // + // e <= +1023 (max IEEE exponent) + // -52 (p - 1) + // -11 (normalize the diyfp) + // = 960 + // + // This binary exponent range [-1137,960] results in a decimal exponent + // range [-307,324]. One does not need to store a cached power for each + // k in this range. For each such k it suffices to find a cached power + // such that the exponent of the product lies in [alpha,gamma]. + // This implies that the difference of the decimal exponents of adjacent + // table entries must be less than or equal to + // + // floor( (gamma - alpha) * log_10(2) ) = 8. + // + // (A smaller distance gamma-alpha would require a larger table.) + + // NB: + // Actually this function returns c, such that -60 <= e_c + e + 64 <= -34. + + constexpr int kCachedPowersMinDecExp = -300; + constexpr int kCachedPowersDecStep = 8; + + static constexpr std::array kCachedPowers = + { + { + { 0xAB70FE17C79AC6CA, -1060, -300 }, + { 0xFF77B1FCBEBCDC4F, -1034, -292 }, + { 0xBE5691EF416BD60C, -1007, -284 }, + { 0x8DD01FAD907FFC3C, -980, -276 }, + { 0xD3515C2831559A83, -954, -268 }, + { 0x9D71AC8FADA6C9B5, -927, -260 }, + { 0xEA9C227723EE8BCB, -901, -252 }, + { 0xAECC49914078536D, -874, -244 }, + { 0x823C12795DB6CE57, -847, -236 }, + { 0xC21094364DFB5637, -821, -228 }, + { 0x9096EA6F3848984F, -794, -220 }, + { 0xD77485CB25823AC7, -768, -212 }, + { 0xA086CFCD97BF97F4, -741, -204 }, + { 0xEF340A98172AACE5, -715, -196 }, + { 0xB23867FB2A35B28E, -688, -188 }, + { 0x84C8D4DFD2C63F3B, -661, -180 }, + { 0xC5DD44271AD3CDBA, -635, -172 }, + { 0x936B9FCEBB25C996, -608, -164 }, + { 0xDBAC6C247D62A584, -582, -156 }, + { 0xA3AB66580D5FDAF6, -555, -148 }, + { 0xF3E2F893DEC3F126, -529, -140 }, + { 0xB5B5ADA8AAFF80B8, -502, -132 }, + { 0x87625F056C7C4A8B, -475, -124 }, + { 0xC9BCFF6034C13053, -449, -116 }, + { 0x964E858C91BA2655, -422, -108 }, + { 0xDFF9772470297EBD, -396, -100 }, + { 0xA6DFBD9FB8E5B88F, -369, -92 }, + { 0xF8A95FCF88747D94, -343, -84 }, + { 0xB94470938FA89BCF, -316, -76 }, + { 0x8A08F0F8BF0F156B, -289, -68 }, + { 0xCDB02555653131B6, -263, -60 }, + { 0x993FE2C6D07B7FAC, -236, -52 }, + { 0xE45C10C42A2B3B06, -210, -44 }, + { 0xAA242499697392D3, -183, -36 }, + { 0xFD87B5F28300CA0E, -157, -28 }, + { 0xBCE5086492111AEB, -130, -20 }, + { 0x8CBCCC096F5088CC, -103, -12 }, + { 0xD1B71758E219652C, -77, -4 }, + { 0x9C40000000000000, -50, 4 }, + { 0xE8D4A51000000000, -24, 12 }, + { 0xAD78EBC5AC620000, 3, 20 }, + { 0x813F3978F8940984, 30, 28 }, + { 0xC097CE7BC90715B3, 56, 36 }, + { 0x8F7E32CE7BEA5C70, 83, 44 }, + { 0xD5D238A4ABE98068, 109, 52 }, + { 0x9F4F2726179A2245, 136, 60 }, + { 0xED63A231D4C4FB27, 162, 68 }, + { 0xB0DE65388CC8ADA8, 189, 76 }, + { 0x83C7088E1AAB65DB, 216, 84 }, + { 0xC45D1DF942711D9A, 242, 92 }, + { 0x924D692CA61BE758, 269, 100 }, + { 0xDA01EE641A708DEA, 295, 108 }, + { 0xA26DA3999AEF774A, 322, 116 }, + { 0xF209787BB47D6B85, 348, 124 }, + { 0xB454E4A179DD1877, 375, 132 }, + { 0x865B86925B9BC5C2, 402, 140 }, + { 0xC83553C5C8965D3D, 428, 148 }, + { 0x952AB45CFA97A0B3, 455, 156 }, + { 0xDE469FBD99A05FE3, 481, 164 }, + { 0xA59BC234DB398C25, 508, 172 }, + { 0xF6C69A72A3989F5C, 534, 180 }, + { 0xB7DCBF5354E9BECE, 561, 188 }, + { 0x88FCF317F22241E2, 588, 196 }, + { 0xCC20CE9BD35C78A5, 614, 204 }, + { 0x98165AF37B2153DF, 641, 212 }, + { 0xE2A0B5DC971F303A, 667, 220 }, + { 0xA8D9D1535CE3B396, 694, 228 }, + { 0xFB9B7CD9A4A7443C, 720, 236 }, + { 0xBB764C4CA7A44410, 747, 244 }, + { 0x8BAB8EEFB6409C1A, 774, 252 }, + { 0xD01FEF10A657842C, 800, 260 }, + { 0x9B10A4E5E9913129, 827, 268 }, + { 0xE7109BFBA19C0C9D, 853, 276 }, + { 0xAC2820D9623BF429, 880, 284 }, + { 0x80444B5E7AA7CF85, 907, 292 }, + { 0xBF21E44003ACDD2D, 933, 300 }, + { 0x8E679C2F5E44FF8F, 960, 308 }, + { 0xD433179D9C8CB841, 986, 316 }, + { 0x9E19DB92B4E31BA9, 1013, 324 }, + } + }; + + // This computation gives exactly the same results for k as + // k = ceil((kAlpha - e - 1) * 0.30102999566398114) + // for |e| <= 1500, but doesn't require floating-point operations. + // NB: log_10(2) ~= 78913 / 2^18 + JSON_ASSERT(e >= -1500); + JSON_ASSERT(e <= 1500); + const int f = kAlpha - e - 1; + const int k = (f * 78913) / (1 << 18) + static_cast(f > 0); + + const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / kCachedPowersDecStep; + JSON_ASSERT(index >= 0); + JSON_ASSERT(static_cast(index) < kCachedPowers.size()); + + const cached_power cached = kCachedPowers[static_cast(index)]; + JSON_ASSERT(kAlpha <= cached.e + e + 64); + JSON_ASSERT(kGamma >= cached.e + e + 64); + + return cached; +} + +/*! +For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k. +For n == 0, returns 1 and sets pow10 := 1. +*/ +inline int find_largest_pow10(const std::uint32_t n, std::uint32_t& pow10) +{ + // LCOV_EXCL_START + if (n >= 1000000000) + { + pow10 = 1000000000; + return 10; + } + // LCOV_EXCL_STOP + if (n >= 100000000) + { + pow10 = 100000000; + return 9; + } + if (n >= 10000000) + { + pow10 = 10000000; + return 8; + } + if (n >= 1000000) + { + pow10 = 1000000; + return 7; + } + if (n >= 100000) + { + pow10 = 100000; + return 6; + } + if (n >= 10000) + { + pow10 = 10000; + return 5; + } + if (n >= 1000) + { + pow10 = 1000; + return 4; + } + if (n >= 100) + { + pow10 = 100; + return 3; + } + if (n >= 10) + { + pow10 = 10; + return 2; + } + + pow10 = 1; + return 1; +} + +inline void grisu2_round(char* buf, int len, std::uint64_t dist, std::uint64_t delta, + std::uint64_t rest, std::uint64_t ten_k) +{ + JSON_ASSERT(len >= 1); + JSON_ASSERT(dist <= delta); + JSON_ASSERT(rest <= delta); + JSON_ASSERT(ten_k > 0); + + // <--------------------------- delta ----> + // <---- dist ---------> + // --------------[------------------+-------------------]-------------- + // M- w M+ + // + // ten_k + // <------> + // <---- rest ----> + // --------------[------------------+----+--------------]-------------- + // w V + // = buf * 10^k + // + // ten_k represents a unit-in-the-last-place in the decimal representation + // stored in buf. + // Decrement buf by ten_k while this takes buf closer to w. + + // The tests are written in this order to avoid overflow in unsigned + // integer arithmetic. + + while (rest < dist + && delta - rest >= ten_k + && (rest + ten_k < dist || dist - rest > rest + ten_k - dist)) + { + JSON_ASSERT(buf[len - 1] != '0'); + buf[len - 1]--; + rest += ten_k; + } +} + +/*! +Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. +M- and M+ must be normalized and share the same exponent -60 <= e <= -32. +*/ +inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent, + diyfp M_minus, diyfp w, diyfp M_plus) +{ + static_assert(kAlpha >= -60, "internal error"); + static_assert(kGamma <= -32, "internal error"); + + // Generates the digits (and the exponent) of a decimal floating-point + // number V = buffer * 10^decimal_exponent in the range [M-, M+]. The diyfp's + // w, M- and M+ share the same exponent e, which satisfies alpha <= e <= gamma. + // + // <--------------------------- delta ----> + // <---- dist ---------> + // --------------[------------------+-------------------]-------------- + // M- w M+ + // + // Grisu2 generates the digits of M+ from left to right and stops as soon as + // V is in [M-,M+]. + + JSON_ASSERT(M_plus.e >= kAlpha); + JSON_ASSERT(M_plus.e <= kGamma); + + std::uint64_t delta = diyfp::sub(M_plus, M_minus).f; // (significand of (M+ - M-), implicit exponent is e) + std::uint64_t dist = diyfp::sub(M_plus, w ).f; // (significand of (M+ - w ), implicit exponent is e) + + // Split M+ = f * 2^e into two parts p1 and p2 (note: e < 0): + // + // M+ = f * 2^e + // = ((f div 2^-e) * 2^-e + (f mod 2^-e)) * 2^e + // = ((p1 ) * 2^-e + (p2 )) * 2^e + // = p1 + p2 * 2^e + + const diyfp one(std::uint64_t{1} << -M_plus.e, M_plus.e); + + auto p1 = static_cast(M_plus.f >> -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.) + std::uint64_t p2 = M_plus.f & (one.f - 1); // p2 = f mod 2^-e + + // 1) + // + // Generate the digits of the integral part p1 = d[n-1]...d[1]d[0] + + JSON_ASSERT(p1 > 0); + + std::uint32_t pow10{}; + const int k = find_largest_pow10(p1, pow10); + + // 10^(k-1) <= p1 < 10^k, pow10 = 10^(k-1) + // + // p1 = (p1 div 10^(k-1)) * 10^(k-1) + (p1 mod 10^(k-1)) + // = (d[k-1] ) * 10^(k-1) + (p1 mod 10^(k-1)) + // + // M+ = p1 + p2 * 2^e + // = d[k-1] * 10^(k-1) + (p1 mod 10^(k-1)) + p2 * 2^e + // = d[k-1] * 10^(k-1) + ((p1 mod 10^(k-1)) * 2^-e + p2) * 2^e + // = d[k-1] * 10^(k-1) + ( rest) * 2^e + // + // Now generate the digits d[n] of p1 from left to right (n = k-1,...,0) + // + // p1 = d[k-1]...d[n] * 10^n + d[n-1]...d[0] + // + // but stop as soon as + // + // rest * 2^e = (d[n-1]...d[0] * 2^-e + p2) * 2^e <= delta * 2^e + + int n = k; + while (n > 0) + { + // Invariants: + // M+ = buffer * 10^n + (p1 + p2 * 2^e) (buffer = 0 for n = k) + // pow10 = 10^(n-1) <= p1 < 10^n + // + const std::uint32_t d = p1 / pow10; // d = p1 div 10^(n-1) + const std::uint32_t r = p1 % pow10; // r = p1 mod 10^(n-1) + // + // M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e + // = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e) + // + JSON_ASSERT(d <= 9); + buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d + // + // M+ = buffer * 10^(n-1) + (r + p2 * 2^e) + // + p1 = r; + n--; + // + // M+ = buffer * 10^n + (p1 + p2 * 2^e) + // pow10 = 10^n + // + + // Now check if enough digits have been generated. + // Compute + // + // p1 + p2 * 2^e = (p1 * 2^-e + p2) * 2^e = rest * 2^e + // + // Note: + // Since rest and delta share the same exponent e, it suffices to + // compare the significands. + const std::uint64_t rest = (std::uint64_t{p1} << -one.e) + p2; + if (rest <= delta) + { + // V = buffer * 10^n, with M- <= V <= M+. + + decimal_exponent += n; + + // We may now just stop. But instead look if the buffer could be + // decremented to bring V closer to w. + // + // pow10 = 10^n is now 1 ulp in the decimal representation V. + // The rounding procedure works with diyfp's with an implicit + // exponent of e. + // + // 10^n = (10^n * 2^-e) * 2^e = ulp * 2^e + // + const std::uint64_t ten_n = std::uint64_t{pow10} << -one.e; + grisu2_round(buffer, length, dist, delta, rest, ten_n); + + return; + } + + pow10 /= 10; + // + // pow10 = 10^(n-1) <= p1 < 10^n + // Invariants restored. + } + + // 2) + // + // The digits of the integral part have been generated: + // + // M+ = d[k-1]...d[1]d[0] + p2 * 2^e + // = buffer + p2 * 2^e + // + // Now generate the digits of the fractional part p2 * 2^e. + // + // Note: + // No decimal point is generated: the exponent is adjusted instead. + // + // p2 actually represents the fraction + // + // p2 * 2^e + // = p2 / 2^-e + // = d[-1] / 10^1 + d[-2] / 10^2 + ... + // + // Now generate the digits d[-m] of p1 from left to right (m = 1,2,...) + // + // p2 * 2^e = d[-1]d[-2]...d[-m] * 10^-m + // + 10^-m * (d[-m-1] / 10^1 + d[-m-2] / 10^2 + ...) + // + // using + // + // 10^m * p2 = ((10^m * p2) div 2^-e) * 2^-e + ((10^m * p2) mod 2^-e) + // = ( d) * 2^-e + ( r) + // + // or + // 10^m * p2 * 2^e = d + r * 2^e + // + // i.e. + // + // M+ = buffer + p2 * 2^e + // = buffer + 10^-m * (d + r * 2^e) + // = (buffer * 10^m + d) * 10^-m + 10^-m * r * 2^e + // + // and stop as soon as 10^-m * r * 2^e <= delta * 2^e + + JSON_ASSERT(p2 > delta); + + int m = 0; + for (;;) + { + // Invariant: + // M+ = buffer * 10^-m + 10^-m * (d[-m-1] / 10 + d[-m-2] / 10^2 + ...) * 2^e + // = buffer * 10^-m + 10^-m * (p2 ) * 2^e + // = buffer * 10^-m + 10^-m * (1/10 * (10 * p2) ) * 2^e + // = buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + (10*p2 mod 2^-e)) * 2^e + // + JSON_ASSERT(p2 <= (std::numeric_limits::max)() / 10); + p2 *= 10; + const std::uint64_t d = p2 >> -one.e; // d = (10 * p2) div 2^-e + const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e + // + // M+ = buffer * 10^-m + 10^-m * (1/10 * (d * 2^-e + r) * 2^e + // = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e)) + // = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e + // + JSON_ASSERT(d <= 9); + buffer[length++] = static_cast('0' + d); // buffer := buffer * 10 + d + // + // M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e + // + p2 = r; + m++; + // + // M+ = buffer * 10^-m + 10^-m * p2 * 2^e + // Invariant restored. + + // Check if enough digits have been generated. + // + // 10^-m * p2 * 2^e <= delta * 2^e + // p2 * 2^e <= 10^m * delta * 2^e + // p2 <= 10^m * delta + delta *= 10; + dist *= 10; + if (p2 <= delta) + { + break; + } + } + + // V = buffer * 10^-m, with M- <= V <= M+. + + decimal_exponent -= m; + + // 1 ulp in the decimal representation is now 10^-m. + // Since delta and dist are now scaled by 10^m, we need to do the + // same with ulp in order to keep the units in sync. + // + // 10^m * 10^-m = 1 = 2^-e * 2^e = ten_m * 2^e + // + const std::uint64_t ten_m = one.f; + grisu2_round(buffer, length, dist, delta, p2, ten_m); + + // By construction this algorithm generates the shortest possible decimal + // number (Loitsch, Theorem 6.2) which rounds back to w. + // For an input number of precision p, at least + // + // N = 1 + ceil(p * log_10(2)) + // + // decimal digits are sufficient to identify all binary floating-point + // numbers (Matula, "In-and-Out conversions"). + // This implies that the algorithm does not produce more than N decimal + // digits. + // + // N = 17 for p = 53 (IEEE double precision) + // N = 9 for p = 24 (IEEE single precision) +} + +/*! +v = buf * 10^decimal_exponent +len is the length of the buffer (number of decimal digits) +The buffer must be large enough, i.e. >= max_digits10. +*/ +JSON_HEDLEY_NON_NULL(1) +inline void grisu2(char* buf, int& len, int& decimal_exponent, + diyfp m_minus, diyfp v, diyfp m_plus) +{ + JSON_ASSERT(m_plus.e == m_minus.e); + JSON_ASSERT(m_plus.e == v.e); + + // --------(-----------------------+-----------------------)-------- (A) + // m- v m+ + // + // --------------------(-----------+-----------------------)-------- (B) + // m- v m+ + // + // First scale v (and m- and m+) such that the exponent is in the range + // [alpha, gamma]. + + const cached_power cached = get_cached_power_for_binary_exponent(m_plus.e); + + const diyfp c_minus_k(cached.f, cached.e); // = c ~= 10^-k + + // The exponent of the products is = v.e + c_minus_k.e + q and is in the range [alpha,gamma] + const diyfp w = diyfp::mul(v, c_minus_k); + const diyfp w_minus = diyfp::mul(m_minus, c_minus_k); + const diyfp w_plus = diyfp::mul(m_plus, c_minus_k); + + // ----(---+---)---------------(---+---)---------------(---+---)---- + // w- w w+ + // = c*m- = c*v = c*m+ + // + // diyfp::mul rounds its result and c_minus_k is approximated too. w, w- and + // w+ are now off by a small amount. + // In fact: + // + // w - v * 10^k < 1 ulp + // + // To account for this inaccuracy, add resp. subtract 1 ulp. + // + // --------+---[---------------(---+---)---------------]---+-------- + // w- M- w M+ w+ + // + // Now any number in [M-, M+] (bounds included) will round to w when input, + // regardless of how the input rounding algorithm breaks ties. + // + // And digit_gen generates the shortest possible such number in [M-, M+]. + // Note that this does not mean that Grisu2 always generates the shortest + // possible number in the interval (m-, m+). + const diyfp M_minus(w_minus.f + 1, w_minus.e); + const diyfp M_plus (w_plus.f - 1, w_plus.e ); + + decimal_exponent = -cached.k; // = -(-k) = k + + grisu2_digit_gen(buf, len, decimal_exponent, M_minus, w, M_plus); +} + +/*! +v = buf * 10^decimal_exponent +len is the length of the buffer (number of decimal digits) +The buffer must be large enough, i.e. >= max_digits10. +*/ +template +JSON_HEDLEY_NON_NULL(1) +void grisu2(char* buf, int& len, int& decimal_exponent, FloatType value) +{ + static_assert(diyfp::kPrecision >= std::numeric_limits::digits + 3, + "internal error: not enough precision"); + + JSON_ASSERT(std::isfinite(value)); + JSON_ASSERT(value > 0); + + // If the neighbors (and boundaries) of 'value' are always computed for double-precision + // numbers, all float's can be recovered using strtod (and strtof). However, the resulting + // decimal representations are not exactly "short". + // + // The documentation for 'std::to_chars' (https://en.cppreference.com/w/cpp/utility/to_chars) + // says "value is converted to a string as if by std::sprintf in the default ("C") locale" + // and since sprintf promotes float's to double's, I think this is exactly what 'std::to_chars' + // does. + // On the other hand, the documentation for 'std::to_chars' requires that "parsing the + // representation using the corresponding std::from_chars function recovers value exactly". That + // indicates that single precision floating-point numbers should be recovered using + // 'std::strtof'. + // + // NB: If the neighbors are computed for single-precision numbers, there is a single float + // (7.0385307e-26f) which can't be recovered using strtod. The resulting double precision + // value is off by 1 ulp. +#if 0 + const boundaries w = compute_boundaries(static_cast(value)); +#else + const boundaries w = compute_boundaries(value); +#endif + + grisu2(buf, len, decimal_exponent, w.minus, w.w, w.plus); +} + +/*! +@brief appends a decimal representation of e to buf +@return a pointer to the element following the exponent. +@pre -1000 < e < 1000 +*/ +JSON_HEDLEY_NON_NULL(1) +JSON_HEDLEY_RETURNS_NON_NULL +inline char* append_exponent(char* buf, int e) +{ + JSON_ASSERT(e > -1000); + JSON_ASSERT(e < 1000); + + if (e < 0) + { + e = -e; + *buf++ = '-'; + } + else + { + *buf++ = '+'; + } + + auto k = static_cast(e); + if (k < 10) + { + // Always print at least two digits in the exponent. + // This is for compatibility with printf("%g"). + *buf++ = '0'; + *buf++ = static_cast('0' + k); + } + else if (k < 100) + { + *buf++ = static_cast('0' + k / 10); + k %= 10; + *buf++ = static_cast('0' + k); + } + else + { + *buf++ = static_cast('0' + k / 100); + k %= 100; + *buf++ = static_cast('0' + k / 10); + k %= 10; + *buf++ = static_cast('0' + k); + } + + return buf; +} + +/*! +@brief prettify v = buf * 10^decimal_exponent + +If v is in the range [10^min_exp, 10^max_exp) it will be printed in fixed-point +notation. Otherwise it will be printed in exponential notation. + +@pre min_exp < 0 +@pre max_exp > 0 +*/ +JSON_HEDLEY_NON_NULL(1) +JSON_HEDLEY_RETURNS_NON_NULL +inline char* format_buffer(char* buf, int len, int decimal_exponent, + int min_exp, int max_exp) +{ + JSON_ASSERT(min_exp < 0); + JSON_ASSERT(max_exp > 0); + + const int k = len; + const int n = len + decimal_exponent; + + // v = buf * 10^(n-k) + // k is the length of the buffer (number of decimal digits) + // n is the position of the decimal point relative to the start of the buffer. + + if (k <= n && n <= max_exp) + { + // digits[000] + // len <= max_exp + 2 + + std::memset(buf + k, '0', static_cast(n) - static_cast(k)); + // Make it look like a floating-point number (#362, #378) + buf[n + 0] = '.'; + buf[n + 1] = '0'; + return buf + (static_cast(n) + 2); + } + + if (0 < n && n <= max_exp) + { + // dig.its + // len <= max_digits10 + 1 + + JSON_ASSERT(k > n); + + std::memmove(buf + (static_cast(n) + 1), buf + n, static_cast(k) - static_cast(n)); + buf[n] = '.'; + return buf + (static_cast(k) + 1U); + } + + if (min_exp < n && n <= 0) + { + // 0.[000]digits + // len <= 2 + (-min_exp - 1) + max_digits10 + + std::memmove(buf + (2 + static_cast(-n)), buf, static_cast(k)); + buf[0] = '0'; + buf[1] = '.'; + std::memset(buf + 2, '0', static_cast(-n)); + return buf + (2U + static_cast(-n) + static_cast(k)); + } + + if (k == 1) + { + // dE+123 + // len <= 1 + 5 + + buf += 1; + } + else + { + // d.igitsE+123 + // len <= max_digits10 + 1 + 5 + + std::memmove(buf + 2, buf + 1, static_cast(k) - 1); + buf[1] = '.'; + buf += 1 + static_cast(k); + } + + *buf++ = 'e'; + return append_exponent(buf, n - 1); +} + +} // namespace dtoa_impl + +/*! +@brief generates a decimal representation of the floating-point number value in [first, last). + +The format of the resulting decimal representation is similar to printf's %g +format. Returns an iterator pointing past-the-end of the decimal representation. + +@note The input number must be finite, i.e. NaN's and Inf's are not supported. +@note The buffer must be large enough. +@note The result is NOT null-terminated. +*/ +template +JSON_HEDLEY_NON_NULL(1, 2) +JSON_HEDLEY_RETURNS_NON_NULL +char* to_chars(char* first, const char* last, FloatType value) +{ + static_cast(last); // maybe unused - fix warning + JSON_ASSERT(std::isfinite(value)); + + // Use signbit(value) instead of (value < 0) since signbit works for -0. + if (std::signbit(value)) + { + value = -value; + *first++ = '-'; + } + +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wfloat-equal" +#endif + if (value == 0) // +-0 + { + *first++ = '0'; + // Make it look like a floating-point number (#362, #378) + *first++ = '.'; + *first++ = '0'; + return first; + } +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + + JSON_ASSERT(last - first >= std::numeric_limits::max_digits10); + + // Compute v = buffer * 10^decimal_exponent. + // The decimal digits are stored in the buffer, which needs to be interpreted + // as an unsigned decimal integer. + // len is the length of the buffer, i.e. the number of decimal digits. + int len = 0; + int decimal_exponent = 0; + dtoa_impl::grisu2(first, len, decimal_exponent, value); + + JSON_ASSERT(len <= std::numeric_limits::max_digits10); + + // Format the buffer like printf("%.*g", prec, value) + constexpr int kMinExp = -4; + // Use digits10 here to increase compatibility with version 2. + constexpr int kMaxExp = std::numeric_limits::digits10; + + JSON_ASSERT(last - first >= kMaxExp + 2); + JSON_ASSERT(last - first >= 2 + (-kMinExp - 1) + std::numeric_limits::max_digits10); + JSON_ASSERT(last - first >= std::numeric_limits::max_digits10 + 6); + + return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, kMaxExp); +} + +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + +// #include + +// #include + +// #include + +// #include + + +namespace nlohmann +{ +namespace detail +{ +/////////////////// +// serialization // +/////////////////// + +/// how to treat decoding errors +enum class error_handler_t +{ + strict, ///< throw a type_error exception in case of invalid UTF-8 + replace, ///< replace invalid UTF-8 sequences with U+FFFD + ignore ///< ignore invalid UTF-8 sequences +}; + +template +class serializer +{ + using string_t = typename BasicJsonType::string_t; + using number_float_t = typename BasicJsonType::number_float_t; + using number_integer_t = typename BasicJsonType::number_integer_t; + using number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using binary_char_t = typename BasicJsonType::binary_t::value_type; + static constexpr std::uint8_t UTF8_ACCEPT = 0; + static constexpr std::uint8_t UTF8_REJECT = 1; + + public: + /*! + @param[in] s output stream to serialize to + @param[in] ichar indentation character to use + @param[in] error_handler_ how to react on decoding errors + */ + serializer(output_adapter_t s, const char ichar, + error_handler_t error_handler_ = error_handler_t::strict) + : o(std::move(s)) + , loc(std::localeconv()) + , thousands_sep(loc->thousands_sep == nullptr ? '\0' : std::char_traits::to_char_type(* (loc->thousands_sep))) + , decimal_point(loc->decimal_point == nullptr ? '\0' : std::char_traits::to_char_type(* (loc->decimal_point))) + , indent_char(ichar) + , indent_string(512, indent_char) + , error_handler(error_handler_) + {} + + // delete because of pointer members + serializer(const serializer&) = delete; + serializer& operator=(const serializer&) = delete; + serializer(serializer&&) = delete; + serializer& operator=(serializer&&) = delete; + ~serializer() = default; + + /*! + @brief internal implementation of the serialization function + + This function is called by the public member function dump and organizes + the serialization internally. The indentation level is propagated as + additional parameter. In case of arrays and objects, the function is + called recursively. + + - strings and object keys are escaped using `escape_string()` + - integer numbers are converted implicitly via `operator<<` + - floating-point numbers are converted to a string using `"%g"` format + - binary values are serialized as objects containing the subtype and the + byte array + + @param[in] val value to serialize + @param[in] pretty_print whether the output shall be pretty-printed + @param[in] ensure_ascii If @a ensure_ascii is true, all non-ASCII characters + in the output are escaped with `\uXXXX` sequences, and the result consists + of ASCII characters only. + @param[in] indent_step the indent level + @param[in] current_indent the current indent level (only used internally) + */ + void dump(const BasicJsonType& val, + const bool pretty_print, + const bool ensure_ascii, + const unsigned int indent_step, + const unsigned int current_indent = 0) + { + switch (val.m_type) + { + case value_t::object: + { + if (val.m_value.object->empty()) + { + o->write_characters("{}", 2); + return; + } + + if (pretty_print) + { + o->write_characters("{\n", 2); + + // variable to hold indentation for recursive calls + const auto new_indent = current_indent + indent_step; + if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) + { + indent_string.resize(indent_string.size() * 2, ' '); + } + + // first n-1 elements + auto i = val.m_value.object->cbegin(); + for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i) + { + o->write_characters(indent_string.c_str(), new_indent); + o->write_character('\"'); + dump_escaped(i->first, ensure_ascii); + o->write_characters("\": ", 3); + dump(i->second, true, ensure_ascii, indent_step, new_indent); + o->write_characters(",\n", 2); + } + + // last element + JSON_ASSERT(i != val.m_value.object->cend()); + JSON_ASSERT(std::next(i) == val.m_value.object->cend()); + o->write_characters(indent_string.c_str(), new_indent); + o->write_character('\"'); + dump_escaped(i->first, ensure_ascii); + o->write_characters("\": ", 3); + dump(i->second, true, ensure_ascii, indent_step, new_indent); + + o->write_character('\n'); + o->write_characters(indent_string.c_str(), current_indent); + o->write_character('}'); + } + else + { + o->write_character('{'); + + // first n-1 elements + auto i = val.m_value.object->cbegin(); + for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i) + { + o->write_character('\"'); + dump_escaped(i->first, ensure_ascii); + o->write_characters("\":", 2); + dump(i->second, false, ensure_ascii, indent_step, current_indent); + o->write_character(','); + } + + // last element + JSON_ASSERT(i != val.m_value.object->cend()); + JSON_ASSERT(std::next(i) == val.m_value.object->cend()); + o->write_character('\"'); + dump_escaped(i->first, ensure_ascii); + o->write_characters("\":", 2); + dump(i->second, false, ensure_ascii, indent_step, current_indent); + + o->write_character('}'); + } + + return; + } + + case value_t::array: + { + if (val.m_value.array->empty()) + { + o->write_characters("[]", 2); + return; + } + + if (pretty_print) + { + o->write_characters("[\n", 2); + + // variable to hold indentation for recursive calls + const auto new_indent = current_indent + indent_step; + if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) + { + indent_string.resize(indent_string.size() * 2, ' '); + } + + // first n-1 elements + for (auto i = val.m_value.array->cbegin(); + i != val.m_value.array->cend() - 1; ++i) + { + o->write_characters(indent_string.c_str(), new_indent); + dump(*i, true, ensure_ascii, indent_step, new_indent); + o->write_characters(",\n", 2); + } + + // last element + JSON_ASSERT(!val.m_value.array->empty()); + o->write_characters(indent_string.c_str(), new_indent); + dump(val.m_value.array->back(), true, ensure_ascii, indent_step, new_indent); + + o->write_character('\n'); + o->write_characters(indent_string.c_str(), current_indent); + o->write_character(']'); + } + else + { + o->write_character('['); + + // first n-1 elements + for (auto i = val.m_value.array->cbegin(); + i != val.m_value.array->cend() - 1; ++i) + { + dump(*i, false, ensure_ascii, indent_step, current_indent); + o->write_character(','); + } + + // last element + JSON_ASSERT(!val.m_value.array->empty()); + dump(val.m_value.array->back(), false, ensure_ascii, indent_step, current_indent); + + o->write_character(']'); + } + + return; + } + + case value_t::string: + { + o->write_character('\"'); + dump_escaped(*val.m_value.string, ensure_ascii); + o->write_character('\"'); + return; + } + + case value_t::binary: + { + if (pretty_print) + { + o->write_characters("{\n", 2); + + // variable to hold indentation for recursive calls + const auto new_indent = current_indent + indent_step; + if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent)) + { + indent_string.resize(indent_string.size() * 2, ' '); + } + + o->write_characters(indent_string.c_str(), new_indent); + + o->write_characters("\"bytes\": [", 10); + + if (!val.m_value.binary->empty()) + { + for (auto i = val.m_value.binary->cbegin(); + i != val.m_value.binary->cend() - 1; ++i) + { + dump_integer(*i); + o->write_characters(", ", 2); + } + dump_integer(val.m_value.binary->back()); + } + + o->write_characters("],\n", 3); + o->write_characters(indent_string.c_str(), new_indent); + + o->write_characters("\"subtype\": ", 11); + if (val.m_value.binary->has_subtype()) + { + dump_integer(val.m_value.binary->subtype()); + } + else + { + o->write_characters("null", 4); + } + o->write_character('\n'); + o->write_characters(indent_string.c_str(), current_indent); + o->write_character('}'); + } + else + { + o->write_characters("{\"bytes\":[", 10); + + if (!val.m_value.binary->empty()) + { + for (auto i = val.m_value.binary->cbegin(); + i != val.m_value.binary->cend() - 1; ++i) + { + dump_integer(*i); + o->write_character(','); + } + dump_integer(val.m_value.binary->back()); + } + + o->write_characters("],\"subtype\":", 12); + if (val.m_value.binary->has_subtype()) + { + dump_integer(val.m_value.binary->subtype()); + o->write_character('}'); + } + else + { + o->write_characters("null}", 5); + } + } + return; + } + + case value_t::boolean: + { + if (val.m_value.boolean) + { + o->write_characters("true", 4); + } + else + { + o->write_characters("false", 5); + } + return; + } + + case value_t::number_integer: + { + dump_integer(val.m_value.number_integer); + return; + } + + case value_t::number_unsigned: + { + dump_integer(val.m_value.number_unsigned); + return; + } + + case value_t::number_float: + { + dump_float(val.m_value.number_float); + return; + } + + case value_t::discarded: + { + o->write_characters("", 11); + return; + } + + case value_t::null: + { + o->write_characters("null", 4); + return; + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + } + + JSON_PRIVATE_UNLESS_TESTED: + /*! + @brief dump escaped string + + Escape a string by replacing certain special characters by a sequence of an + escape character (backslash) and another character and other control + characters by a sequence of "\u" followed by a four-digit hex + representation. The escaped string is written to output stream @a o. + + @param[in] s the string to escape + @param[in] ensure_ascii whether to escape non-ASCII characters with + \uXXXX sequences + + @complexity Linear in the length of string @a s. + */ + void dump_escaped(const string_t& s, const bool ensure_ascii) + { + std::uint32_t codepoint{}; + std::uint8_t state = UTF8_ACCEPT; + std::size_t bytes = 0; // number of bytes written to string_buffer + + // number of bytes written at the point of the last valid byte + std::size_t bytes_after_last_accept = 0; + std::size_t undumped_chars = 0; + + for (std::size_t i = 0; i < s.size(); ++i) + { + const auto byte = static_cast(s[i]); + + switch (decode(state, codepoint, byte)) + { + case UTF8_ACCEPT: // decode found a new code point + { + switch (codepoint) + { + case 0x08: // backspace + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'b'; + break; + } + + case 0x09: // horizontal tab + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 't'; + break; + } + + case 0x0A: // newline + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'n'; + break; + } + + case 0x0C: // formfeed + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'f'; + break; + } + + case 0x0D: // carriage return + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'r'; + break; + } + + case 0x22: // quotation mark + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = '\"'; + break; + } + + case 0x5C: // reverse solidus + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = '\\'; + break; + } + + default: + { + // escape control characters (0x00..0x1F) or, if + // ensure_ascii parameter is used, non-ASCII characters + if ((codepoint <= 0x1F) || (ensure_ascii && (codepoint >= 0x7F))) + { + if (codepoint <= 0xFFFF) + { + // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + (std::snprintf)(string_buffer.data() + bytes, 7, "\\u%04x", + static_cast(codepoint)); + bytes += 6; + } + else + { + // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + (std::snprintf)(string_buffer.data() + bytes, 13, "\\u%04x\\u%04x", + static_cast(0xD7C0u + (codepoint >> 10u)), + static_cast(0xDC00u + (codepoint & 0x3FFu))); + bytes += 12; + } + } + else + { + // copy byte to buffer (all previous bytes + // been copied have in default case above) + string_buffer[bytes++] = s[i]; + } + break; + } + } + + // write buffer and reset index; there must be 13 bytes + // left, as this is the maximal number of bytes to be + // written ("\uxxxx\uxxxx\0") for one code point + if (string_buffer.size() - bytes < 13) + { + o->write_characters(string_buffer.data(), bytes); + bytes = 0; + } + + // remember the byte position of this accept + bytes_after_last_accept = bytes; + undumped_chars = 0; + break; + } + + case UTF8_REJECT: // decode found invalid UTF-8 byte + { + switch (error_handler) + { + case error_handler_t::strict: + { + std::string sn(9, '\0'); + // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + (std::snprintf)(&sn[0], sn.size(), "%.2X", byte); + JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + sn, BasicJsonType())); + } + + case error_handler_t::ignore: + case error_handler_t::replace: + { + // in case we saw this character the first time, we + // would like to read it again, because the byte + // may be OK for itself, but just not OK for the + // previous sequence + if (undumped_chars > 0) + { + --i; + } + + // reset length buffer to the last accepted index; + // thus removing/ignoring the invalid characters + bytes = bytes_after_last_accept; + + if (error_handler == error_handler_t::replace) + { + // add a replacement character + if (ensure_ascii) + { + string_buffer[bytes++] = '\\'; + string_buffer[bytes++] = 'u'; + string_buffer[bytes++] = 'f'; + string_buffer[bytes++] = 'f'; + string_buffer[bytes++] = 'f'; + string_buffer[bytes++] = 'd'; + } + else + { + string_buffer[bytes++] = detail::binary_writer::to_char_type('\xEF'); + string_buffer[bytes++] = detail::binary_writer::to_char_type('\xBF'); + string_buffer[bytes++] = detail::binary_writer::to_char_type('\xBD'); + } + + // write buffer and reset index; there must be 13 bytes + // left, as this is the maximal number of bytes to be + // written ("\uxxxx\uxxxx\0") for one code point + if (string_buffer.size() - bytes < 13) + { + o->write_characters(string_buffer.data(), bytes); + bytes = 0; + } + + bytes_after_last_accept = bytes; + } + + undumped_chars = 0; + + // continue processing the string + state = UTF8_ACCEPT; + break; + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + break; + } + + default: // decode found yet incomplete multi-byte code point + { + if (!ensure_ascii) + { + // code point will not be escaped - copy byte to buffer + string_buffer[bytes++] = s[i]; + } + ++undumped_chars; + break; + } + } + } + + // we finished processing the string + if (JSON_HEDLEY_LIKELY(state == UTF8_ACCEPT)) + { + // write buffer + if (bytes > 0) + { + o->write_characters(string_buffer.data(), bytes); + } + } + else + { + // we finish reading, but do not accept: string was incomplete + switch (error_handler) + { + case error_handler_t::strict: + { + std::string sn(9, '\0'); + // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + (std::snprintf)(&sn[0], sn.size(), "%.2X", static_cast(s.back())); + JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + sn, BasicJsonType())); + } + + case error_handler_t::ignore: + { + // write all accepted bytes + o->write_characters(string_buffer.data(), bytes_after_last_accept); + break; + } + + case error_handler_t::replace: + { + // write all accepted bytes + o->write_characters(string_buffer.data(), bytes_after_last_accept); + // add a replacement character + if (ensure_ascii) + { + o->write_characters("\\ufffd", 6); + } + else + { + o->write_characters("\xEF\xBF\xBD", 3); + } + break; + } + + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + } + } + + private: + /*! + @brief count digits + + Count the number of decimal (base 10) digits for an input unsigned integer. + + @param[in] x unsigned integer number to count its digits + @return number of decimal digits + */ + inline unsigned int count_digits(number_unsigned_t x) noexcept + { + unsigned int n_digits = 1; + for (;;) + { + if (x < 10) + { + return n_digits; + } + if (x < 100) + { + return n_digits + 1; + } + if (x < 1000) + { + return n_digits + 2; + } + if (x < 10000) + { + return n_digits + 3; + } + x = x / 10000u; + n_digits += 4; + } + } + + /*! + @brief dump an integer + + Dump a given integer to output stream @a o. Works internally with + @a number_buffer. + + @param[in] x integer number (signed or unsigned) to dump + @tparam NumberType either @a number_integer_t or @a number_unsigned_t + */ + template < typename NumberType, detail::enable_if_t < + std::is_integral::value || + std::is_same::value || + std::is_same::value || + std::is_same::value, + int > = 0 > + void dump_integer(NumberType x) + { + static constexpr std::array, 100> digits_to_99 + { + { + {{'0', '0'}}, {{'0', '1'}}, {{'0', '2'}}, {{'0', '3'}}, {{'0', '4'}}, {{'0', '5'}}, {{'0', '6'}}, {{'0', '7'}}, {{'0', '8'}}, {{'0', '9'}}, + {{'1', '0'}}, {{'1', '1'}}, {{'1', '2'}}, {{'1', '3'}}, {{'1', '4'}}, {{'1', '5'}}, {{'1', '6'}}, {{'1', '7'}}, {{'1', '8'}}, {{'1', '9'}}, + {{'2', '0'}}, {{'2', '1'}}, {{'2', '2'}}, {{'2', '3'}}, {{'2', '4'}}, {{'2', '5'}}, {{'2', '6'}}, {{'2', '7'}}, {{'2', '8'}}, {{'2', '9'}}, + {{'3', '0'}}, {{'3', '1'}}, {{'3', '2'}}, {{'3', '3'}}, {{'3', '4'}}, {{'3', '5'}}, {{'3', '6'}}, {{'3', '7'}}, {{'3', '8'}}, {{'3', '9'}}, + {{'4', '0'}}, {{'4', '1'}}, {{'4', '2'}}, {{'4', '3'}}, {{'4', '4'}}, {{'4', '5'}}, {{'4', '6'}}, {{'4', '7'}}, {{'4', '8'}}, {{'4', '9'}}, + {{'5', '0'}}, {{'5', '1'}}, {{'5', '2'}}, {{'5', '3'}}, {{'5', '4'}}, {{'5', '5'}}, {{'5', '6'}}, {{'5', '7'}}, {{'5', '8'}}, {{'5', '9'}}, + {{'6', '0'}}, {{'6', '1'}}, {{'6', '2'}}, {{'6', '3'}}, {{'6', '4'}}, {{'6', '5'}}, {{'6', '6'}}, {{'6', '7'}}, {{'6', '8'}}, {{'6', '9'}}, + {{'7', '0'}}, {{'7', '1'}}, {{'7', '2'}}, {{'7', '3'}}, {{'7', '4'}}, {{'7', '5'}}, {{'7', '6'}}, {{'7', '7'}}, {{'7', '8'}}, {{'7', '9'}}, + {{'8', '0'}}, {{'8', '1'}}, {{'8', '2'}}, {{'8', '3'}}, {{'8', '4'}}, {{'8', '5'}}, {{'8', '6'}}, {{'8', '7'}}, {{'8', '8'}}, {{'8', '9'}}, + {{'9', '0'}}, {{'9', '1'}}, {{'9', '2'}}, {{'9', '3'}}, {{'9', '4'}}, {{'9', '5'}}, {{'9', '6'}}, {{'9', '7'}}, {{'9', '8'}}, {{'9', '9'}}, + } + }; + + // special case for "0" + if (x == 0) + { + o->write_character('0'); + return; + } + + // use a pointer to fill the buffer + auto buffer_ptr = number_buffer.begin(); // NOLINT(llvm-qualified-auto,readability-qualified-auto,cppcoreguidelines-pro-type-vararg,hicpp-vararg) + + const bool is_negative = std::is_signed::value && !(x >= 0); // see issue #755 + number_unsigned_t abs_value; + + unsigned int n_chars{}; + + if (is_negative) + { + *buffer_ptr = '-'; + abs_value = remove_sign(static_cast(x)); + + // account one more byte for the minus sign + n_chars = 1 + count_digits(abs_value); + } + else + { + abs_value = static_cast(x); + n_chars = count_digits(abs_value); + } + + // spare 1 byte for '\0' + JSON_ASSERT(n_chars < number_buffer.size() - 1); + + // jump to the end to generate the string from backward + // so we later avoid reversing the result + buffer_ptr += n_chars; + + // Fast int2ascii implementation inspired by "Fastware" talk by Andrei Alexandrescu + // See: https://www.youtube.com/watch?v=o4-CwDo2zpg + while (abs_value >= 100) + { + const auto digits_index = static_cast((abs_value % 100)); + abs_value /= 100; + *(--buffer_ptr) = digits_to_99[digits_index][1]; + *(--buffer_ptr) = digits_to_99[digits_index][0]; + } + + if (abs_value >= 10) + { + const auto digits_index = static_cast(abs_value); + *(--buffer_ptr) = digits_to_99[digits_index][1]; + *(--buffer_ptr) = digits_to_99[digits_index][0]; + } + else + { + *(--buffer_ptr) = static_cast('0' + abs_value); + } + + o->write_characters(number_buffer.data(), n_chars); + } + + /*! + @brief dump a floating-point number + + Dump a given floating-point number to output stream @a o. Works internally + with @a number_buffer. + + @param[in] x floating-point number to dump + */ + void dump_float(number_float_t x) + { + // NaN / inf + if (!std::isfinite(x)) + { + o->write_characters("null", 4); + return; + } + + // If number_float_t is an IEEE-754 single or double precision number, + // use the Grisu2 algorithm to produce short numbers which are + // guaranteed to round-trip, using strtof and strtod, resp. + // + // NB: The test below works if == . + static constexpr bool is_ieee_single_or_double + = (std::numeric_limits::is_iec559 && std::numeric_limits::digits == 24 && std::numeric_limits::max_exponent == 128) || + (std::numeric_limits::is_iec559 && std::numeric_limits::digits == 53 && std::numeric_limits::max_exponent == 1024); + + dump_float(x, std::integral_constant()); + } + + void dump_float(number_float_t x, std::true_type /*is_ieee_single_or_double*/) + { + auto* begin = number_buffer.data(); + auto* end = ::nlohmann::detail::to_chars(begin, begin + number_buffer.size(), x); + + o->write_characters(begin, static_cast(end - begin)); + } + + void dump_float(number_float_t x, std::false_type /*is_ieee_single_or_double*/) + { + // get number of digits for a float -> text -> float round-trip + static constexpr auto d = std::numeric_limits::max_digits10; + + // the actual conversion + // NOLINTNEXTLINE(cppcoreguidelines-pro-type-vararg,hicpp-vararg) + std::ptrdiff_t len = (std::snprintf)(number_buffer.data(), number_buffer.size(), "%.*g", d, x); + + // negative value indicates an error + JSON_ASSERT(len > 0); + // check if buffer was large enough + JSON_ASSERT(static_cast(len) < number_buffer.size()); + + // erase thousands separator + if (thousands_sep != '\0') + { + auto* const end = std::remove(number_buffer.begin(), + number_buffer.begin() + len, thousands_sep); + std::fill(end, number_buffer.end(), '\0'); + JSON_ASSERT((end - number_buffer.begin()) <= len); + len = (end - number_buffer.begin()); + } + + // convert decimal point to '.' + if (decimal_point != '\0' && decimal_point != '.') + { + auto* const dec_pos = std::find(number_buffer.begin(), number_buffer.end(), decimal_point); + if (dec_pos != number_buffer.end()) + { + *dec_pos = '.'; + } + } + + o->write_characters(number_buffer.data(), static_cast(len)); + + // determine if need to append ".0" + const bool value_is_int_like = + std::none_of(number_buffer.begin(), number_buffer.begin() + len + 1, + [](char c) + { + return c == '.' || c == 'e'; + }); + + if (value_is_int_like) + { + o->write_characters(".0", 2); + } + } + + /*! + @brief check whether a string is UTF-8 encoded + + The function checks each byte of a string whether it is UTF-8 encoded. The + result of the check is stored in the @a state parameter. The function must + be called initially with state 0 (accept). State 1 means the string must + be rejected, because the current byte is not allowed. If the string is + completely processed, but the state is non-zero, the string ended + prematurely; that is, the last byte indicated more bytes should have + followed. + + @param[in,out] state the state of the decoding + @param[in,out] codep codepoint (valid only if resulting state is UTF8_ACCEPT) + @param[in] byte next byte to decode + @return new state + + @note The function has been edited: a std::array is used. + + @copyright Copyright (c) 2008-2009 Bjoern Hoehrmann + @sa http://bjoern.hoehrmann.de/utf-8/decoder/dfa/ + */ + static std::uint8_t decode(std::uint8_t& state, std::uint32_t& codep, const std::uint8_t byte) noexcept + { + static const std::array utf8d = + { + { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 00..1F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20..3F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40..5F + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60..7F + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, // 80..9F + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, // A0..BF + 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // C0..DF + 0xA, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x4, 0x3, 0x3, // E0..EF + 0xB, 0x6, 0x6, 0x6, 0x5, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, // F0..FF + 0x0, 0x1, 0x2, 0x3, 0x5, 0x8, 0x7, 0x1, 0x1, 0x1, 0x4, 0x6, 0x1, 0x1, 0x1, 0x1, // s0..s0 + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, // s1..s2 + 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, // s3..s4 + 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, // s5..s6 + 1, 3, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 // s7..s8 + } + }; + + JSON_ASSERT(byte < utf8d.size()); + const std::uint8_t type = utf8d[byte]; + + codep = (state != UTF8_ACCEPT) + ? (byte & 0x3fu) | (codep << 6u) + : (0xFFu >> type) & (byte); + + std::size_t index = 256u + static_cast(state) * 16u + static_cast(type); + JSON_ASSERT(index < 400); + state = utf8d[index]; + return state; + } + + /* + * Overload to make the compiler happy while it is instantiating + * dump_integer for number_unsigned_t. + * Must never be called. + */ + number_unsigned_t remove_sign(number_unsigned_t x) + { + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + return x; // LCOV_EXCL_LINE + } + + /* + * Helper function for dump_integer + * + * This function takes a negative signed integer and returns its absolute + * value as unsigned integer. The plus/minus shuffling is necessary as we can + * not directly remove the sign of an arbitrary signed integer as the + * absolute values of INT_MIN and INT_MAX are usually not the same. See + * #1708 for details. + */ + inline number_unsigned_t remove_sign(number_integer_t x) noexcept + { + JSON_ASSERT(x < 0 && x < (std::numeric_limits::max)()); // NOLINT(misc-redundant-expression) + return static_cast(-(x + 1)) + 1; + } + + private: + /// the output of the serializer + output_adapter_t o = nullptr; + + /// a (hopefully) large enough character buffer + std::array number_buffer{{}}; + + /// the locale + const std::lconv* loc = nullptr; + /// the locale's thousand separator character + const char thousands_sep = '\0'; + /// the locale's decimal point character + const char decimal_point = '\0'; + + /// string buffer + std::array string_buffer{{}}; + + /// the indentation character + const char indent_char; + /// the indentation string + string_t indent_string; + + /// error_handler how to react on decoding errors + const error_handler_t error_handler; +}; +} // namespace detail +} // namespace nlohmann + +// #include + +// #include + +// #include + + +#include // less +#include // initializer_list +#include // input_iterator_tag, iterator_traits +#include // allocator +#include // for out_of_range +#include // enable_if, is_convertible +#include // pair +#include // vector + +// #include + + +namespace nlohmann +{ + +/// ordered_map: a minimal map-like container that preserves insertion order +/// for use within nlohmann::basic_json +template , + class Allocator = std::allocator>> + struct ordered_map : std::vector, Allocator> +{ + using key_type = Key; + using mapped_type = T; + using Container = std::vector, Allocator>; + using typename Container::iterator; + using typename Container::const_iterator; + using typename Container::size_type; + using typename Container::value_type; + + // Explicit constructors instead of `using Container::Container` + // otherwise older compilers choke on it (GCC <= 5.5, xcode <= 9.4) + ordered_map(const Allocator& alloc = Allocator()) : Container{alloc} {} + template + ordered_map(It first, It last, const Allocator& alloc = Allocator()) + : Container{first, last, alloc} {} + ordered_map(std::initializer_list init, const Allocator& alloc = Allocator() ) + : Container{init, alloc} {} + + std::pair emplace(const key_type& key, T&& t) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return {it, false}; + } + } + Container::emplace_back(key, t); + return {--this->end(), true}; + } + + T& operator[](const Key& key) + { + return emplace(key, T{}).first->second; + } + + const T& operator[](const Key& key) const + { + return at(key); + } + + T& at(const Key& key) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return it->second; + } + } + + JSON_THROW(std::out_of_range("key not found")); + } + + const T& at(const Key& key) const + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return it->second; + } + } + + JSON_THROW(std::out_of_range("key not found")); + } + + size_type erase(const Key& key) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + // Since we cannot move const Keys, re-construct them in place + for (auto next = it; ++next != this->end(); ++it) + { + it->~value_type(); // Destroy but keep allocation + new (&*it) value_type{std::move(*next)}; + } + Container::pop_back(); + return 1; + } + } + return 0; + } + + iterator erase(iterator pos) + { + auto it = pos; + + // Since we cannot move const Keys, re-construct them in place + for (auto next = it; ++next != this->end(); ++it) + { + it->~value_type(); // Destroy but keep allocation + new (&*it) value_type{std::move(*next)}; + } + Container::pop_back(); + return pos; + } + + size_type count(const Key& key) const + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return 1; + } + } + return 0; + } + + iterator find(const Key& key) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return it; + } + } + return Container::end(); + } + + const_iterator find(const Key& key) const + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == key) + { + return it; + } + } + return Container::end(); + } + + std::pair insert( value_type&& value ) + { + return emplace(value.first, std::move(value.second)); + } + + std::pair insert( const value_type& value ) + { + for (auto it = this->begin(); it != this->end(); ++it) + { + if (it->first == value.first) + { + return {it, false}; + } + } + Container::push_back(value); + return {--this->end(), true}; + } + + template + using require_input_iter = typename std::enable_if::iterator_category, + std::input_iterator_tag>::value>::type; + + template> + void insert(InputIt first, InputIt last) + { + for (auto it = first; it != last; ++it) + { + insert(*it); + } + } +}; + +} // namespace nlohmann + + +#if defined(JSON_HAS_CPP_17) + #include +#endif + +/*! +@brief namespace for Niels Lohmann +@see https://github.com/nlohmann +@since version 1.0.0 +*/ +namespace nlohmann +{ + +/*! +@brief a class to store JSON values + +@tparam ObjectType type for JSON objects (`std::map` by default; will be used +in @ref object_t) +@tparam ArrayType type for JSON arrays (`std::vector` by default; will be used +in @ref array_t) +@tparam StringType type for JSON strings and object keys (`std::string` by +default; will be used in @ref string_t) +@tparam BooleanType type for JSON booleans (`bool` by default; will be used +in @ref boolean_t) +@tparam NumberIntegerType type for JSON integer numbers (`int64_t` by +default; will be used in @ref number_integer_t) +@tparam NumberUnsignedType type for JSON unsigned integer numbers (@c +`uint64_t` by default; will be used in @ref number_unsigned_t) +@tparam NumberFloatType type for JSON floating-point numbers (`double` by +default; will be used in @ref number_float_t) +@tparam BinaryType type for packed binary data for compatibility with binary +serialization formats (`std::vector` by default; will be used in +@ref binary_t) +@tparam AllocatorType type of the allocator to use (`std::allocator` by +default) +@tparam JSONSerializer the serializer to resolve internal calls to `to_json()` +and `from_json()` (@ref adl_serializer by default) + +@requirement The class satisfies the following concept requirements: +- Basic + - [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible): + JSON values can be default constructed. The result will be a JSON null + value. + - [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible): + A JSON value can be constructed from an rvalue argument. + - [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible): + A JSON value can be copy-constructed from an lvalue expression. + - [MoveAssignable](https://en.cppreference.com/w/cpp/named_req/MoveAssignable): + A JSON value van be assigned from an rvalue argument. + - [CopyAssignable](https://en.cppreference.com/w/cpp/named_req/CopyAssignable): + A JSON value can be copy-assigned from an lvalue expression. + - [Destructible](https://en.cppreference.com/w/cpp/named_req/Destructible): + JSON values can be destructed. +- Layout + - [StandardLayoutType](https://en.cppreference.com/w/cpp/named_req/StandardLayoutType): + JSON values have + [standard layout](https://en.cppreference.com/w/cpp/language/data_members#Standard_layout): + All non-static data members are private and standard layout types, the + class has no virtual functions or (virtual) base classes. +- Library-wide + - [EqualityComparable](https://en.cppreference.com/w/cpp/named_req/EqualityComparable): + JSON values can be compared with `==`, see @ref + operator==(const_reference,const_reference). + - [LessThanComparable](https://en.cppreference.com/w/cpp/named_req/LessThanComparable): + JSON values can be compared with `<`, see @ref + operator<(const_reference,const_reference). + - [Swappable](https://en.cppreference.com/w/cpp/named_req/Swappable): + Any JSON lvalue or rvalue of can be swapped with any lvalue or rvalue of + other compatible types, using unqualified function call @ref swap(). + - [NullablePointer](https://en.cppreference.com/w/cpp/named_req/NullablePointer): + JSON values can be compared against `std::nullptr_t` objects which are used + to model the `null` value. +- Container + - [Container](https://en.cppreference.com/w/cpp/named_req/Container): + JSON values can be used like STL containers and provide iterator access. + - [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer); + JSON values can be used like STL containers and provide reverse iterator + access. + +@invariant The member variables @a m_value and @a m_type have the following +relationship: +- If `m_type == value_t::object`, then `m_value.object != nullptr`. +- If `m_type == value_t::array`, then `m_value.array != nullptr`. +- If `m_type == value_t::string`, then `m_value.string != nullptr`. +The invariants are checked by member function assert_invariant(). + +@internal +@note ObjectType trick from https://stackoverflow.com/a/9860911 +@endinternal + +@see [RFC 8259: The JavaScript Object Notation (JSON) Data Interchange +Format](https://tools.ietf.org/html/rfc8259) + +@since version 1.0.0 + +@nosubgrouping +*/ +NLOHMANN_BASIC_JSON_TPL_DECLARATION +class basic_json // NOLINT(cppcoreguidelines-special-member-functions,hicpp-special-member-functions) +{ + private: + template friend struct detail::external_constructor; + friend ::nlohmann::json_pointer; + + template + friend class ::nlohmann::detail::parser; + friend ::nlohmann::detail::serializer; + template + friend class ::nlohmann::detail::iter_impl; + template + friend class ::nlohmann::detail::binary_writer; + template + friend class ::nlohmann::detail::binary_reader; + template + friend class ::nlohmann::detail::json_sax_dom_parser; + template + friend class ::nlohmann::detail::json_sax_dom_callback_parser; + friend class ::nlohmann::detail::exception; + + /// workaround type for MSVC + using basic_json_t = NLOHMANN_BASIC_JSON_TPL; + + JSON_PRIVATE_UNLESS_TESTED: + // convenience aliases for types residing in namespace detail; + using lexer = ::nlohmann::detail::lexer_base; + + template + static ::nlohmann::detail::parser parser( + InputAdapterType adapter, + detail::parser_callback_tcb = nullptr, + const bool allow_exceptions = true, + const bool ignore_comments = false + ) + { + return ::nlohmann::detail::parser(std::move(adapter), + std::move(cb), allow_exceptions, ignore_comments); + } + + private: + using primitive_iterator_t = ::nlohmann::detail::primitive_iterator_t; + template + using internal_iterator = ::nlohmann::detail::internal_iterator; + template + using iter_impl = ::nlohmann::detail::iter_impl; + template + using iteration_proxy = ::nlohmann::detail::iteration_proxy; + template using json_reverse_iterator = ::nlohmann::detail::json_reverse_iterator; + + template + using output_adapter_t = ::nlohmann::detail::output_adapter_t; + + template + using binary_reader = ::nlohmann::detail::binary_reader; + template using binary_writer = ::nlohmann::detail::binary_writer; + + JSON_PRIVATE_UNLESS_TESTED: + using serializer = ::nlohmann::detail::serializer; + + public: + using value_t = detail::value_t; + /// JSON Pointer, see @ref nlohmann::json_pointer + using json_pointer = ::nlohmann::json_pointer; + template + using json_serializer = JSONSerializer; + /// how to treat decoding errors + using error_handler_t = detail::error_handler_t; + /// how to treat CBOR tags + using cbor_tag_handler_t = detail::cbor_tag_handler_t; + /// helper type for initializer lists of basic_json values + using initializer_list_t = std::initializer_list>; + + using input_format_t = detail::input_format_t; + /// SAX interface type, see @ref nlohmann::json_sax + using json_sax_t = json_sax; + + //////////////// + // exceptions // + //////////////// + + /// @name exceptions + /// Classes to implement user-defined exceptions. + /// @{ + + /// @copydoc detail::exception + using exception = detail::exception; + /// @copydoc detail::parse_error + using parse_error = detail::parse_error; + /// @copydoc detail::invalid_iterator + using invalid_iterator = detail::invalid_iterator; + /// @copydoc detail::type_error + using type_error = detail::type_error; + /// @copydoc detail::out_of_range + using out_of_range = detail::out_of_range; + /// @copydoc detail::other_error + using other_error = detail::other_error; + + /// @} + + + ///////////////////// + // container types // + ///////////////////// + + /// @name container types + /// The canonic container types to use @ref basic_json like any other STL + /// container. + /// @{ + + /// the type of elements in a basic_json container + using value_type = basic_json; + + /// the type of an element reference + using reference = value_type&; + /// the type of an element const reference + using const_reference = const value_type&; + + /// a type to represent differences between iterators + using difference_type = std::ptrdiff_t; + /// a type to represent container sizes + using size_type = std::size_t; + + /// the allocator type + using allocator_type = AllocatorType; + + /// the type of an element pointer + using pointer = typename std::allocator_traits::pointer; + /// the type of an element const pointer + using const_pointer = typename std::allocator_traits::const_pointer; + + /// an iterator for a basic_json container + using iterator = iter_impl; + /// a const iterator for a basic_json container + using const_iterator = iter_impl; + /// a reverse iterator for a basic_json container + using reverse_iterator = json_reverse_iterator; + /// a const reverse iterator for a basic_json container + using const_reverse_iterator = json_reverse_iterator; + + /// @} + + + /*! + @brief returns the allocator associated with the container + */ + static allocator_type get_allocator() + { + return allocator_type(); + } + + /*! + @brief returns version information on the library + + This function returns a JSON object with information about the library, + including the version number and information on the platform and compiler. + + @return JSON object holding version information + key | description + ----------- | --------------- + `compiler` | Information on the used compiler. It is an object with the following keys: `c++` (the used C++ standard), `family` (the compiler family; possible values are `clang`, `icc`, `gcc`, `ilecpp`, `msvc`, `pgcpp`, `sunpro`, and `unknown`), and `version` (the compiler version). + `copyright` | The copyright line for the library as string. + `name` | The name of the library as string. + `platform` | The used platform as string. Possible values are `win32`, `linux`, `apple`, `unix`, and `unknown`. + `url` | The URL of the project as string. + `version` | The version of the library. It is an object with the following keys: `major`, `minor`, and `patch` as defined by [Semantic Versioning](http://semver.org), and `string` (the version string). + + @liveexample{The following code shows an example output of the `meta()` + function.,meta} + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @complexity Constant. + + @since 2.1.0 + */ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json meta() + { + basic_json result; + + result["copyright"] = "(C) 2013-2021 Niels Lohmann"; + result["name"] = "JSON for Modern C++"; + result["url"] = "https://github.com/nlohmann/json"; + result["version"]["string"] = + std::to_string(NLOHMANN_JSON_VERSION_MAJOR) + "." + + std::to_string(NLOHMANN_JSON_VERSION_MINOR) + "." + + std::to_string(NLOHMANN_JSON_VERSION_PATCH); + result["version"]["major"] = NLOHMANN_JSON_VERSION_MAJOR; + result["version"]["minor"] = NLOHMANN_JSON_VERSION_MINOR; + result["version"]["patch"] = NLOHMANN_JSON_VERSION_PATCH; + +#ifdef _WIN32 + result["platform"] = "win32"; +#elif defined __linux__ + result["platform"] = "linux"; +#elif defined __APPLE__ + result["platform"] = "apple"; +#elif defined __unix__ + result["platform"] = "unix"; +#else + result["platform"] = "unknown"; +#endif + +#if defined(__ICC) || defined(__INTEL_COMPILER) + result["compiler"] = {{"family", "icc"}, {"version", __INTEL_COMPILER}}; +#elif defined(__clang__) + result["compiler"] = {{"family", "clang"}, {"version", __clang_version__}}; +#elif defined(__GNUC__) || defined(__GNUG__) + result["compiler"] = {{"family", "gcc"}, {"version", std::to_string(__GNUC__) + "." + std::to_string(__GNUC_MINOR__) + "." + std::to_string(__GNUC_PATCHLEVEL__)}}; +#elif defined(__HP_cc) || defined(__HP_aCC) + result["compiler"] = "hp" +#elif defined(__IBMCPP__) + result["compiler"] = {{"family", "ilecpp"}, {"version", __IBMCPP__}}; +#elif defined(_MSC_VER) + result["compiler"] = {{"family", "msvc"}, {"version", _MSC_VER}}; +#elif defined(__PGI) + result["compiler"] = {{"family", "pgcpp"}, {"version", __PGI}}; +#elif defined(__SUNPRO_CC) + result["compiler"] = {{"family", "sunpro"}, {"version", __SUNPRO_CC}}; +#else + result["compiler"] = {{"family", "unknown"}, {"version", "unknown"}}; +#endif + +#ifdef __cplusplus + result["compiler"]["c++"] = std::to_string(__cplusplus); +#else + result["compiler"]["c++"] = "unknown"; +#endif + return result; + } + + + /////////////////////////// + // JSON value data types // + /////////////////////////// + + /// @name JSON value data types + /// The data types to store a JSON value. These types are derived from + /// the template arguments passed to class @ref basic_json. + /// @{ + +#if defined(JSON_HAS_CPP_14) + // Use transparent comparator if possible, combined with perfect forwarding + // on find() and count() calls prevents unnecessary string construction. + using object_comparator_t = std::less<>; +#else + using object_comparator_t = std::less; +#endif + + /*! + @brief a type for an object + + [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON objects as follows: + > An object is an unordered collection of zero or more name/value pairs, + > where a name is a string and a value is a string, number, boolean, null, + > object, or array. + + To store objects in C++, a type is defined by the template parameters + described below. + + @tparam ObjectType the container to store objects (e.g., `std::map` or + `std::unordered_map`) + @tparam StringType the type of the keys or names (e.g., `std::string`). + The comparison function `std::less` is used to order elements + inside the container. + @tparam AllocatorType the allocator to use for objects (e.g., + `std::allocator`) + + #### Default type + + With the default values for @a ObjectType (`std::map`), @a StringType + (`std::string`), and @a AllocatorType (`std::allocator`), the default + value for @a object_t is: + + @code {.cpp} + std::map< + std::string, // key_type + basic_json, // value_type + std::less, // key_compare + std::allocator> // allocator_type + > + @endcode + + #### Behavior + + The choice of @a object_t influences the behavior of the JSON class. With + the default type, objects have the following behavior: + + - When all names are unique, objects will be interoperable in the sense + that all software implementations receiving that object will agree on + the name-value mappings. + - When the names within an object are not unique, it is unspecified which + one of the values for a given key will be chosen. For instance, + `{"key": 2, "key": 1}` could be equal to either `{"key": 1}` or + `{"key": 2}`. + - Internally, name/value pairs are stored in lexicographical order of the + names. Objects will also be serialized (see @ref dump) in this order. + For instance, `{"b": 1, "a": 2}` and `{"a": 2, "b": 1}` will be stored + and serialized as `{"a": 2, "b": 1}`. + - When comparing objects, the order of the name/value pairs is irrelevant. + This makes objects interoperable in the sense that they will not be + affected by these differences. For instance, `{"b": 1, "a": 2}` and + `{"a": 2, "b": 1}` will be treated as equal. + + #### Limits + + [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies: + > An implementation may set limits on the maximum depth of nesting. + + In this class, the object's limit of nesting is not explicitly constrained. + However, a maximum depth of nesting may be introduced by the compiler or + runtime environment. A theoretical limit can be queried by calling the + @ref max_size function of a JSON object. + + #### Storage + + Objects are stored as pointers in a @ref basic_json type. That is, for any + access to object values, a pointer of type `object_t*` must be + dereferenced. + + @sa see @ref array_t -- type for an array value + + @since version 1.0.0 + + @note The order name/value pairs are added to the object is *not* + preserved by the library. Therefore, iterating an object may return + name/value pairs in a different order than they were originally stored. In + fact, keys will be traversed in alphabetical order as `std::map` with + `std::less` is used by default. Please note this behavior conforms to [RFC + 8259](https://tools.ietf.org/html/rfc8259), because any order implements the + specified "unordered" nature of JSON objects. + */ + using object_t = ObjectType>>; + + /*! + @brief a type for an array + + [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON arrays as follows: + > An array is an ordered sequence of zero or more values. + + To store objects in C++, a type is defined by the template parameters + explained below. + + @tparam ArrayType container type to store arrays (e.g., `std::vector` or + `std::list`) + @tparam AllocatorType allocator to use for arrays (e.g., `std::allocator`) + + #### Default type + + With the default values for @a ArrayType (`std::vector`) and @a + AllocatorType (`std::allocator`), the default value for @a array_t is: + + @code {.cpp} + std::vector< + basic_json, // value_type + std::allocator // allocator_type + > + @endcode + + #### Limits + + [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies: + > An implementation may set limits on the maximum depth of nesting. + + In this class, the array's limit of nesting is not explicitly constrained. + However, a maximum depth of nesting may be introduced by the compiler or + runtime environment. A theoretical limit can be queried by calling the + @ref max_size function of a JSON array. + + #### Storage + + Arrays are stored as pointers in a @ref basic_json type. That is, for any + access to array values, a pointer of type `array_t*` must be dereferenced. + + @sa see @ref object_t -- type for an object value + + @since version 1.0.0 + */ + using array_t = ArrayType>; + + /*! + @brief a type for a string + + [RFC 8259](https://tools.ietf.org/html/rfc8259) describes JSON strings as follows: + > A string is a sequence of zero or more Unicode characters. + + To store objects in C++, a type is defined by the template parameter + described below. Unicode values are split by the JSON class into + byte-sized characters during deserialization. + + @tparam StringType the container to store strings (e.g., `std::string`). + Note this container is used for keys/names in objects, see @ref object_t. + + #### Default type + + With the default values for @a StringType (`std::string`), the default + value for @a string_t is: + + @code {.cpp} + std::string + @endcode + + #### Encoding + + Strings are stored in UTF-8 encoding. Therefore, functions like + `std::string::size()` or `std::string::length()` return the number of + bytes in the string rather than the number of characters or glyphs. + + #### String comparison + + [RFC 8259](https://tools.ietf.org/html/rfc8259) states: + > Software implementations are typically required to test names of object + > members for equality. Implementations that transform the textual + > representation into sequences of Unicode code units and then perform the + > comparison numerically, code unit by code unit, are interoperable in the + > sense that implementations will agree in all cases on equality or + > inequality of two strings. For example, implementations that compare + > strings with escaped characters unconverted may incorrectly find that + > `"a\\b"` and `"a\u005Cb"` are not equal. + + This implementation is interoperable as it does compare strings code unit + by code unit. + + #### Storage + + String values are stored as pointers in a @ref basic_json type. That is, + for any access to string values, a pointer of type `string_t*` must be + dereferenced. + + @since version 1.0.0 + */ + using string_t = StringType; + + /*! + @brief a type for a boolean + + [RFC 8259](https://tools.ietf.org/html/rfc8259) implicitly describes a boolean as a + type which differentiates the two literals `true` and `false`. + + To store objects in C++, a type is defined by the template parameter @a + BooleanType which chooses the type to use. + + #### Default type + + With the default values for @a BooleanType (`bool`), the default value for + @a boolean_t is: + + @code {.cpp} + bool + @endcode + + #### Storage + + Boolean values are stored directly inside a @ref basic_json type. + + @since version 1.0.0 + */ + using boolean_t = BooleanType; + + /*! + @brief a type for a number (integer) + + [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows: + > The representation of numbers is similar to that used in most + > programming languages. A number is represented in base 10 using decimal + > digits. It contains an integer component that may be prefixed with an + > optional minus sign, which may be followed by a fraction part and/or an + > exponent part. Leading zeros are not allowed. (...) Numeric values that + > cannot be represented in the grammar below (such as Infinity and NaN) + > are not permitted. + + This description includes both integer and floating-point numbers. + However, C++ allows more precise storage if it is known whether the number + is a signed integer, an unsigned integer or a floating-point number. + Therefore, three different types, @ref number_integer_t, @ref + number_unsigned_t and @ref number_float_t are used. + + To store integer numbers in C++, a type is defined by the template + parameter @a NumberIntegerType which chooses the type to use. + + #### Default type + + With the default values for @a NumberIntegerType (`int64_t`), the default + value for @a number_integer_t is: + + @code {.cpp} + int64_t + @endcode + + #### Default behavior + + - The restrictions about leading zeros is not enforced in C++. Instead, + leading zeros in integer literals lead to an interpretation as octal + number. Internally, the value will be stored as decimal number. For + instance, the C++ integer literal `010` will be serialized to `8`. + During deserialization, leading zeros yield an error. + - Not-a-number (NaN) values will be serialized to `null`. + + #### Limits + + [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies: + > An implementation may set limits on the range and precision of numbers. + + When the default type is used, the maximal integer number that can be + stored is `9223372036854775807` (INT64_MAX) and the minimal integer number + that can be stored is `-9223372036854775808` (INT64_MIN). Integer numbers + that are out of range will yield over/underflow when used in a + constructor. During deserialization, too large or small integer numbers + will be automatically be stored as @ref number_unsigned_t or @ref + number_float_t. + + [RFC 8259](https://tools.ietf.org/html/rfc8259) further states: + > Note that when such software is used, numbers that are integers and are + > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense + > that implementations will agree exactly on their numeric values. + + As this range is a subrange of the exactly supported range [INT64_MIN, + INT64_MAX], this class's integer type is interoperable. + + #### Storage + + Integer number values are stored directly inside a @ref basic_json type. + + @sa see @ref number_float_t -- type for number values (floating-point) + + @sa see @ref number_unsigned_t -- type for number values (unsigned integer) + + @since version 1.0.0 + */ + using number_integer_t = NumberIntegerType; + + /*! + @brief a type for a number (unsigned) + + [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows: + > The representation of numbers is similar to that used in most + > programming languages. A number is represented in base 10 using decimal + > digits. It contains an integer component that may be prefixed with an + > optional minus sign, which may be followed by a fraction part and/or an + > exponent part. Leading zeros are not allowed. (...) Numeric values that + > cannot be represented in the grammar below (such as Infinity and NaN) + > are not permitted. + + This description includes both integer and floating-point numbers. + However, C++ allows more precise storage if it is known whether the number + is a signed integer, an unsigned integer or a floating-point number. + Therefore, three different types, @ref number_integer_t, @ref + number_unsigned_t and @ref number_float_t are used. + + To store unsigned integer numbers in C++, a type is defined by the + template parameter @a NumberUnsignedType which chooses the type to use. + + #### Default type + + With the default values for @a NumberUnsignedType (`uint64_t`), the + default value for @a number_unsigned_t is: + + @code {.cpp} + uint64_t + @endcode + + #### Default behavior + + - The restrictions about leading zeros is not enforced in C++. Instead, + leading zeros in integer literals lead to an interpretation as octal + number. Internally, the value will be stored as decimal number. For + instance, the C++ integer literal `010` will be serialized to `8`. + During deserialization, leading zeros yield an error. + - Not-a-number (NaN) values will be serialized to `null`. + + #### Limits + + [RFC 8259](https://tools.ietf.org/html/rfc8259) specifies: + > An implementation may set limits on the range and precision of numbers. + + When the default type is used, the maximal integer number that can be + stored is `18446744073709551615` (UINT64_MAX) and the minimal integer + number that can be stored is `0`. Integer numbers that are out of range + will yield over/underflow when used in a constructor. During + deserialization, too large or small integer numbers will be automatically + be stored as @ref number_integer_t or @ref number_float_t. + + [RFC 8259](https://tools.ietf.org/html/rfc8259) further states: + > Note that when such software is used, numbers that are integers and are + > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense + > that implementations will agree exactly on their numeric values. + + As this range is a subrange (when considered in conjunction with the + number_integer_t type) of the exactly supported range [0, UINT64_MAX], + this class's integer type is interoperable. + + #### Storage + + Integer number values are stored directly inside a @ref basic_json type. + + @sa see @ref number_float_t -- type for number values (floating-point) + @sa see @ref number_integer_t -- type for number values (integer) + + @since version 2.0.0 + */ + using number_unsigned_t = NumberUnsignedType; + + /*! + @brief a type for a number (floating-point) + + [RFC 8259](https://tools.ietf.org/html/rfc8259) describes numbers as follows: + > The representation of numbers is similar to that used in most + > programming languages. A number is represented in base 10 using decimal + > digits. It contains an integer component that may be prefixed with an + > optional minus sign, which may be followed by a fraction part and/or an + > exponent part. Leading zeros are not allowed. (...) Numeric values that + > cannot be represented in the grammar below (such as Infinity and NaN) + > are not permitted. + + This description includes both integer and floating-point numbers. + However, C++ allows more precise storage if it is known whether the number + is a signed integer, an unsigned integer or a floating-point number. + Therefore, three different types, @ref number_integer_t, @ref + number_unsigned_t and @ref number_float_t are used. + + To store floating-point numbers in C++, a type is defined by the template + parameter @a NumberFloatType which chooses the type to use. + + #### Default type + + With the default values for @a NumberFloatType (`double`), the default + value for @a number_float_t is: + + @code {.cpp} + double + @endcode + + #### Default behavior + + - The restrictions about leading zeros is not enforced in C++. Instead, + leading zeros in floating-point literals will be ignored. Internally, + the value will be stored as decimal number. For instance, the C++ + floating-point literal `01.2` will be serialized to `1.2`. During + deserialization, leading zeros yield an error. + - Not-a-number (NaN) values will be serialized to `null`. + + #### Limits + + [RFC 8259](https://tools.ietf.org/html/rfc8259) states: + > This specification allows implementations to set limits on the range and + > precision of numbers accepted. Since software that implements IEEE + > 754-2008 binary64 (double precision) numbers is generally available and + > widely used, good interoperability can be achieved by implementations + > that expect no more precision or range than these provide, in the sense + > that implementations will approximate JSON numbers within the expected + > precision. + + This implementation does exactly follow this approach, as it uses double + precision floating-point numbers. Note values smaller than + `-1.79769313486232e+308` and values greater than `1.79769313486232e+308` + will be stored as NaN internally and be serialized to `null`. + + #### Storage + + Floating-point number values are stored directly inside a @ref basic_json + type. + + @sa see @ref number_integer_t -- type for number values (integer) + + @sa see @ref number_unsigned_t -- type for number values (unsigned integer) + + @since version 1.0.0 + */ + using number_float_t = NumberFloatType; + + /*! + @brief a type for a packed binary type + + This type is a type designed to carry binary data that appears in various + serialized formats, such as CBOR's Major Type 2, MessagePack's bin, and + BSON's generic binary subtype. This type is NOT a part of standard JSON and + exists solely for compatibility with these binary types. As such, it is + simply defined as an ordered sequence of zero or more byte values. + + Additionally, as an implementation detail, the subtype of the binary data is + carried around as a `std::uint8_t`, which is compatible with both of the + binary data formats that use binary subtyping, (though the specific + numbering is incompatible with each other, and it is up to the user to + translate between them). + + [CBOR's RFC 7049](https://tools.ietf.org/html/rfc7049) describes this type + as: + > Major type 2: a byte string. The string's length in bytes is represented + > following the rules for positive integers (major type 0). + + [MessagePack's documentation on the bin type + family](https://github.com/msgpack/msgpack/blob/master/spec.md#bin-format-family) + describes this type as: + > Bin format family stores an byte array in 2, 3, or 5 bytes of extra bytes + > in addition to the size of the byte array. + + [BSON's specifications](http://bsonspec.org/spec.html) describe several + binary types; however, this type is intended to represent the generic binary + type which has the description: + > Generic binary subtype - This is the most commonly used binary subtype and + > should be the 'default' for drivers and tools. + + None of these impose any limitations on the internal representation other + than the basic unit of storage be some type of array whose parts are + decomposable into bytes. + + The default representation of this binary format is a + `std::vector`, which is a very common way to represent a byte + array in modern C++. + + #### Default type + + The default values for @a BinaryType is `std::vector` + + #### Storage + + Binary Arrays are stored as pointers in a @ref basic_json type. That is, + for any access to array values, a pointer of the type `binary_t*` must be + dereferenced. + + #### Notes on subtypes + + - CBOR + - Binary values are represented as byte strings. Subtypes are serialized + as tagged values. + - MessagePack + - If a subtype is given and the binary array contains exactly 1, 2, 4, 8, + or 16 elements, the fixext family (fixext1, fixext2, fixext4, fixext8) + is used. For other sizes, the ext family (ext8, ext16, ext32) is used. + The subtype is then added as singed 8-bit integer. + - If no subtype is given, the bin family (bin8, bin16, bin32) is used. + - BSON + - If a subtype is given, it is used and added as unsigned 8-bit integer. + - If no subtype is given, the generic binary subtype 0x00 is used. + + @sa see @ref binary -- create a binary array + + @since version 3.8.0 + */ + using binary_t = nlohmann::byte_container_with_subtype; + /// @} + + private: + + /// helper for exception-safe object creation + template + JSON_HEDLEY_RETURNS_NON_NULL + static T* create(Args&& ... args) + { + AllocatorType alloc; + using AllocatorTraits = std::allocator_traits>; + + auto deleter = [&](T * obj) + { + AllocatorTraits::deallocate(alloc, obj, 1); + }; + std::unique_ptr obj(AllocatorTraits::allocate(alloc, 1), deleter); + AllocatorTraits::construct(alloc, obj.get(), std::forward(args)...); + JSON_ASSERT(obj != nullptr); + return obj.release(); + } + + //////////////////////// + // JSON value storage // + //////////////////////// + + JSON_PRIVATE_UNLESS_TESTED: + /*! + @brief a JSON value + + The actual storage for a JSON value of the @ref basic_json class. This + union combines the different storage types for the JSON value types + defined in @ref value_t. + + JSON type | value_t type | used type + --------- | --------------- | ------------------------ + object | object | pointer to @ref object_t + array | array | pointer to @ref array_t + string | string | pointer to @ref string_t + boolean | boolean | @ref boolean_t + number | number_integer | @ref number_integer_t + number | number_unsigned | @ref number_unsigned_t + number | number_float | @ref number_float_t + binary | binary | pointer to @ref binary_t + null | null | *no value is stored* + + @note Variable-length types (objects, arrays, and strings) are stored as + pointers. The size of the union should not exceed 64 bits if the default + value types are used. + + @since version 1.0.0 + */ + union json_value + { + /// object (stored with pointer to save storage) + object_t* object; + /// array (stored with pointer to save storage) + array_t* array; + /// string (stored with pointer to save storage) + string_t* string; + /// binary (stored with pointer to save storage) + binary_t* binary; + /// boolean + boolean_t boolean; + /// number (integer) + number_integer_t number_integer; + /// number (unsigned integer) + number_unsigned_t number_unsigned; + /// number (floating-point) + number_float_t number_float; + + /// default constructor (for null values) + json_value() = default; + /// constructor for booleans + json_value(boolean_t v) noexcept : boolean(v) {} + /// constructor for numbers (integer) + json_value(number_integer_t v) noexcept : number_integer(v) {} + /// constructor for numbers (unsigned) + json_value(number_unsigned_t v) noexcept : number_unsigned(v) {} + /// constructor for numbers (floating-point) + json_value(number_float_t v) noexcept : number_float(v) {} + /// constructor for empty values of a given type + json_value(value_t t) + { + switch (t) + { + case value_t::object: + { + object = create(); + break; + } + + case value_t::array: + { + array = create(); + break; + } + + case value_t::string: + { + string = create(""); + break; + } + + case value_t::binary: + { + binary = create(); + break; + } + + case value_t::boolean: + { + boolean = boolean_t(false); + break; + } + + case value_t::number_integer: + { + number_integer = number_integer_t(0); + break; + } + + case value_t::number_unsigned: + { + number_unsigned = number_unsigned_t(0); + break; + } + + case value_t::number_float: + { + number_float = number_float_t(0.0); + break; + } + + case value_t::null: + { + object = nullptr; // silence warning, see #821 + break; + } + + case value_t::discarded: + default: + { + object = nullptr; // silence warning, see #821 + if (JSON_HEDLEY_UNLIKELY(t == value_t::null)) + { + JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 3.10.2", basic_json())); // LCOV_EXCL_LINE + } + break; + } + } + } + + /// constructor for strings + json_value(const string_t& value) + { + string = create(value); + } + + /// constructor for rvalue strings + json_value(string_t&& value) + { + string = create(std::move(value)); + } + + /// constructor for objects + json_value(const object_t& value) + { + object = create(value); + } + + /// constructor for rvalue objects + json_value(object_t&& value) + { + object = create(std::move(value)); + } + + /// constructor for arrays + json_value(const array_t& value) + { + array = create(value); + } + + /// constructor for rvalue arrays + json_value(array_t&& value) + { + array = create(std::move(value)); + } + + /// constructor for binary arrays + json_value(const typename binary_t::container_type& value) + { + binary = create(value); + } + + /// constructor for rvalue binary arrays + json_value(typename binary_t::container_type&& value) + { + binary = create(std::move(value)); + } + + /// constructor for binary arrays (internal type) + json_value(const binary_t& value) + { + binary = create(value); + } + + /// constructor for rvalue binary arrays (internal type) + json_value(binary_t&& value) + { + binary = create(std::move(value)); + } + + void destroy(value_t t) + { + if (t == value_t::array || t == value_t::object) + { + // flatten the current json_value to a heap-allocated stack + std::vector stack; + + // move the top-level items to stack + if (t == value_t::array) + { + stack.reserve(array->size()); + std::move(array->begin(), array->end(), std::back_inserter(stack)); + } + else + { + stack.reserve(object->size()); + for (auto&& it : *object) + { + stack.push_back(std::move(it.second)); + } + } + + while (!stack.empty()) + { + // move the last item to local variable to be processed + basic_json current_item(std::move(stack.back())); + stack.pop_back(); + + // if current_item is array/object, move + // its children to the stack to be processed later + if (current_item.is_array()) + { + std::move(current_item.m_value.array->begin(), current_item.m_value.array->end(), std::back_inserter(stack)); + + current_item.m_value.array->clear(); + } + else if (current_item.is_object()) + { + for (auto&& it : *current_item.m_value.object) + { + stack.push_back(std::move(it.second)); + } + + current_item.m_value.object->clear(); + } + + // it's now safe that current_item get destructed + // since it doesn't have any children + } + } + + switch (t) + { + case value_t::object: + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, object); + std::allocator_traits::deallocate(alloc, object, 1); + break; + } + + case value_t::array: + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, array); + std::allocator_traits::deallocate(alloc, array, 1); + break; + } + + case value_t::string: + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, string); + std::allocator_traits::deallocate(alloc, string, 1); + break; + } + + case value_t::binary: + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, binary); + std::allocator_traits::deallocate(alloc, binary, 1); + break; + } + + case value_t::null: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::discarded: + default: + { + break; + } + } + } + }; + + private: + /*! + @brief checks the class invariants + + This function asserts the class invariants. It needs to be called at the + end of every constructor to make sure that created objects respect the + invariant. Furthermore, it has to be called each time the type of a JSON + value is changed, because the invariant expresses a relationship between + @a m_type and @a m_value. + + Furthermore, the parent relation is checked for arrays and objects: If + @a check_parents true and the value is an array or object, then the + container's elements must have the current value as parent. + + @param[in] check_parents whether the parent relation should be checked. + The value is true by default and should only be set to false + during destruction of objects when the invariant does not + need to hold. + */ + void assert_invariant(bool check_parents = true) const noexcept + { + JSON_ASSERT(m_type != value_t::object || m_value.object != nullptr); + JSON_ASSERT(m_type != value_t::array || m_value.array != nullptr); + JSON_ASSERT(m_type != value_t::string || m_value.string != nullptr); + JSON_ASSERT(m_type != value_t::binary || m_value.binary != nullptr); + +#if JSON_DIAGNOSTICS + JSON_TRY + { + // cppcheck-suppress assertWithSideEffect + JSON_ASSERT(!check_parents || !is_structured() || std::all_of(begin(), end(), [this](const basic_json & j) + { + return j.m_parent == this; + })); + } + JSON_CATCH(...) {} // LCOV_EXCL_LINE +#endif + static_cast(check_parents); + } + + void set_parents() + { +#if JSON_DIAGNOSTICS + switch (m_type) + { + case value_t::array: + { + for (auto& element : *m_value.array) + { + element.m_parent = this; + } + break; + } + + case value_t::object: + { + for (auto& element : *m_value.object) + { + element.second.m_parent = this; + } + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + break; + } +#endif + } + + iterator set_parents(iterator it, typename iterator::difference_type count) + { +#if JSON_DIAGNOSTICS + for (typename iterator::difference_type i = 0; i < count; ++i) + { + (it + i)->m_parent = this; + } +#else + static_cast(count); +#endif + return it; + } + + reference set_parent(reference j, std::size_t old_capacity = std::size_t(-1)) + { +#if JSON_DIAGNOSTICS + if (old_capacity != std::size_t(-1)) + { + // see https://github.com/nlohmann/json/issues/2838 + JSON_ASSERT(type() == value_t::array); + if (JSON_HEDLEY_UNLIKELY(m_value.array->capacity() != old_capacity)) + { + // capacity has changed: update all parents + set_parents(); + return j; + } + } + + // ordered_json uses a vector internally, so pointers could have + // been invalidated; see https://github.com/nlohmann/json/issues/2962 +#ifdef JSON_HEDLEY_MSVC_VERSION +#pragma warning(push ) +#pragma warning(disable : 4127) // ignore warning to replace if with if constexpr +#endif + if (detail::is_ordered_map::value) + { + set_parents(); + return j; + } +#ifdef JSON_HEDLEY_MSVC_VERSION +#pragma warning( pop ) +#endif + + j.m_parent = this; +#else + static_cast(j); + static_cast(old_capacity); +#endif + return j; + } + + public: + ////////////////////////// + // JSON parser callback // + ////////////////////////// + + /*! + @brief parser event types + + The parser callback distinguishes the following events: + - `object_start`: the parser read `{` and started to process a JSON object + - `key`: the parser read a key of a value in an object + - `object_end`: the parser read `}` and finished processing a JSON object + - `array_start`: the parser read `[` and started to process a JSON array + - `array_end`: the parser read `]` and finished processing a JSON array + - `value`: the parser finished reading a JSON value + + @image html callback_events.png "Example when certain parse events are triggered" + + @sa see @ref parser_callback_t for more information and examples + */ + using parse_event_t = detail::parse_event_t; + + /*! + @brief per-element parser callback type + + With a parser callback function, the result of parsing a JSON text can be + influenced. When passed to @ref parse, it is called on certain events + (passed as @ref parse_event_t via parameter @a event) with a set recursion + depth @a depth and context JSON value @a parsed. The return value of the + callback function is a boolean indicating whether the element that emitted + the callback shall be kept or not. + + We distinguish six scenarios (determined by the event type) in which the + callback function can be called. The following table describes the values + of the parameters @a depth, @a event, and @a parsed. + + parameter @a event | description | parameter @a depth | parameter @a parsed + ------------------ | ----------- | ------------------ | ------------------- + parse_event_t::object_start | the parser read `{` and started to process a JSON object | depth of the parent of the JSON object | a JSON value with type discarded + parse_event_t::key | the parser read a key of a value in an object | depth of the currently parsed JSON object | a JSON string containing the key + parse_event_t::object_end | the parser read `}` and finished processing a JSON object | depth of the parent of the JSON object | the parsed JSON object + parse_event_t::array_start | the parser read `[` and started to process a JSON array | depth of the parent of the JSON array | a JSON value with type discarded + parse_event_t::array_end | the parser read `]` and finished processing a JSON array | depth of the parent of the JSON array | the parsed JSON array + parse_event_t::value | the parser finished reading a JSON value | depth of the value | the parsed JSON value + + @image html callback_events.png "Example when certain parse events are triggered" + + Discarding a value (i.e., returning `false`) has different effects + depending on the context in which function was called: + + - Discarded values in structured types are skipped. That is, the parser + will behave as if the discarded value was never read. + - In case a value outside a structured type is skipped, it is replaced + with `null`. This case happens if the top-level element is skipped. + + @param[in] depth the depth of the recursion during parsing + + @param[in] event an event of type parse_event_t indicating the context in + the callback function has been called + + @param[in,out] parsed the current intermediate parse result; note that + writing to this value has no effect for parse_event_t::key events + + @return Whether the JSON value which called the function during parsing + should be kept (`true`) or not (`false`). In the latter case, it is either + skipped completely or replaced by an empty discarded object. + + @sa see @ref parse for examples + + @since version 1.0.0 + */ + using parser_callback_t = detail::parser_callback_t; + + ////////////////// + // constructors // + ////////////////// + + /// @name constructors and destructors + /// Constructors of class @ref basic_json, copy/move constructor, copy + /// assignment, static functions creating objects, and the destructor. + /// @{ + + /*! + @brief create an empty value with a given type + + Create an empty JSON value with a given type. The value will be default + initialized with an empty value which depends on the type: + + Value type | initial value + ----------- | ------------- + null | `null` + boolean | `false` + string | `""` + number | `0` + object | `{}` + array | `[]` + binary | empty array + + @param[in] v the type of the value to create + + @complexity Constant. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @liveexample{The following code shows the constructor for different @ref + value_t values,basic_json__value_t} + + @sa see @ref clear() -- restores the postcondition of this constructor + + @since version 1.0.0 + */ + basic_json(const value_t v) + : m_type(v), m_value(v) + { + assert_invariant(); + } + + /*! + @brief create a null object + + Create a `null` JSON value. It either takes a null pointer as parameter + (explicitly creating `null`) or no parameter (implicitly creating `null`). + The passed null pointer itself is not read -- it is only used to choose + the right constructor. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this constructor never throws + exceptions. + + @liveexample{The following code shows the constructor with and without a + null pointer parameter.,basic_json__nullptr_t} + + @since version 1.0.0 + */ + basic_json(std::nullptr_t = nullptr) noexcept + : basic_json(value_t::null) + { + assert_invariant(); + } + + /*! + @brief create a JSON value + + This is a "catch all" constructor for all compatible JSON types; that is, + types for which a `to_json()` method exists. The constructor forwards the + parameter @a val to that method (to `json_serializer::to_json` method + with `U = uncvref_t`, to be exact). + + Template type @a CompatibleType includes, but is not limited to, the + following types: + - **arrays**: @ref array_t and all kinds of compatible containers such as + `std::vector`, `std::deque`, `std::list`, `std::forward_list`, + `std::array`, `std::valarray`, `std::set`, `std::unordered_set`, + `std::multiset`, and `std::unordered_multiset` with a `value_type` from + which a @ref basic_json value can be constructed. + - **objects**: @ref object_t and all kinds of compatible associative + containers such as `std::map`, `std::unordered_map`, `std::multimap`, + and `std::unordered_multimap` with a `key_type` compatible to + @ref string_t and a `value_type` from which a @ref basic_json value can + be constructed. + - **strings**: @ref string_t, string literals, and all compatible string + containers can be used. + - **numbers**: @ref number_integer_t, @ref number_unsigned_t, + @ref number_float_t, and all convertible number types such as `int`, + `size_t`, `int64_t`, `float` or `double` can be used. + - **boolean**: @ref boolean_t / `bool` can be used. + - **binary**: @ref binary_t / `std::vector` may be used, + unfortunately because string literals cannot be distinguished from binary + character arrays by the C++ type system, all types compatible with `const + char*` will be directed to the string constructor instead. This is both + for backwards compatibility, and due to the fact that a binary type is not + a standard JSON type. + + See the examples below. + + @tparam CompatibleType a type such that: + - @a CompatibleType is not derived from `std::istream`, + - @a CompatibleType is not @ref basic_json (to avoid hijacking copy/move + constructors), + - @a CompatibleType is not a different @ref basic_json type (i.e. with different template arguments) + - @a CompatibleType is not a @ref basic_json nested type (e.g., + @ref json_pointer, @ref iterator, etc ...) + - `json_serializer` has a `to_json(basic_json_t&, CompatibleType&&)` method + + @tparam U = `uncvref_t` + + @param[in] val the value to be forwarded to the respective constructor + + @complexity Usually linear in the size of the passed @a val, also + depending on the implementation of the called `to_json()` + method. + + @exceptionsafety Depends on the called constructor. For types directly + supported by the library (i.e., all types for which no `to_json()` function + was provided), strong guarantee holds: if an exception is thrown, there are + no changes to any JSON value. + + @liveexample{The following code shows the constructor with several + compatible types.,basic_json__CompatibleType} + + @since version 2.1.0 + */ + template < typename CompatibleType, + typename U = detail::uncvref_t, + detail::enable_if_t < + !detail::is_basic_json::value && detail::is_compatible_type::value, int > = 0 > + basic_json(CompatibleType && val) noexcept(noexcept( // NOLINT(bugprone-forwarding-reference-overload,bugprone-exception-escape) + JSONSerializer::to_json(std::declval(), + std::forward(val)))) + { + JSONSerializer::to_json(*this, std::forward(val)); + set_parents(); + assert_invariant(); + } + + /*! + @brief create a JSON value from an existing one + + This is a constructor for existing @ref basic_json types. + It does not hijack copy/move constructors, since the parameter has different + template arguments than the current ones. + + The constructor tries to convert the internal @ref m_value of the parameter. + + @tparam BasicJsonType a type such that: + - @a BasicJsonType is a @ref basic_json type. + - @a BasicJsonType has different template arguments than @ref basic_json_t. + + @param[in] val the @ref basic_json value to be converted. + + @complexity Usually linear in the size of the passed @a val, also + depending on the implementation of the called `to_json()` + method. + + @exceptionsafety Depends on the called constructor. For types directly + supported by the library (i.e., all types for which no `to_json()` function + was provided), strong guarantee holds: if an exception is thrown, there are + no changes to any JSON value. + + @since version 3.2.0 + */ + template < typename BasicJsonType, + detail::enable_if_t < + detail::is_basic_json::value&& !std::is_same::value, int > = 0 > + basic_json(const BasicJsonType& val) + { + using other_boolean_t = typename BasicJsonType::boolean_t; + using other_number_float_t = typename BasicJsonType::number_float_t; + using other_number_integer_t = typename BasicJsonType::number_integer_t; + using other_number_unsigned_t = typename BasicJsonType::number_unsigned_t; + using other_string_t = typename BasicJsonType::string_t; + using other_object_t = typename BasicJsonType::object_t; + using other_array_t = typename BasicJsonType::array_t; + using other_binary_t = typename BasicJsonType::binary_t; + + switch (val.type()) + { + case value_t::boolean: + JSONSerializer::to_json(*this, val.template get()); + break; + case value_t::number_float: + JSONSerializer::to_json(*this, val.template get()); + break; + case value_t::number_integer: + JSONSerializer::to_json(*this, val.template get()); + break; + case value_t::number_unsigned: + JSONSerializer::to_json(*this, val.template get()); + break; + case value_t::string: + JSONSerializer::to_json(*this, val.template get_ref()); + break; + case value_t::object: + JSONSerializer::to_json(*this, val.template get_ref()); + break; + case value_t::array: + JSONSerializer::to_json(*this, val.template get_ref()); + break; + case value_t::binary: + JSONSerializer::to_json(*this, val.template get_ref()); + break; + case value_t::null: + *this = nullptr; + break; + case value_t::discarded: + m_type = value_t::discarded; + break; + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + set_parents(); + assert_invariant(); + } + + /*! + @brief create a container (array or object) from an initializer list + + Creates a JSON value of type array or object from the passed initializer + list @a init. In case @a type_deduction is `true` (default), the type of + the JSON value to be created is deducted from the initializer list @a init + according to the following rules: + + 1. If the list is empty, an empty JSON object value `{}` is created. + 2. If the list consists of pairs whose first element is a string, a JSON + object value is created where the first elements of the pairs are + treated as keys and the second elements are as values. + 3. In all other cases, an array is created. + + The rules aim to create the best fit between a C++ initializer list and + JSON values. The rationale is as follows: + + 1. The empty initializer list is written as `{}` which is exactly an empty + JSON object. + 2. C++ has no way of describing mapped types other than to list a list of + pairs. As JSON requires that keys must be of type string, rule 2 is the + weakest constraint one can pose on initializer lists to interpret them + as an object. + 3. In all other cases, the initializer list could not be interpreted as + JSON object type, so interpreting it as JSON array type is safe. + + With the rules described above, the following JSON values cannot be + expressed by an initializer list: + + - the empty array (`[]`): use @ref array(initializer_list_t) + with an empty initializer list in this case + - arrays whose elements satisfy rule 2: use @ref + array(initializer_list_t) with the same initializer list + in this case + + @note When used without parentheses around an empty initializer list, @ref + basic_json() is called instead of this function, yielding the JSON null + value. + + @param[in] init initializer list with JSON values + + @param[in] type_deduction internal parameter; when set to `true`, the type + of the JSON value is deducted from the initializer list @a init; when set + to `false`, the type provided via @a manual_type is forced. This mode is + used by the functions @ref array(initializer_list_t) and + @ref object(initializer_list_t). + + @param[in] manual_type internal parameter; when @a type_deduction is set + to `false`, the created JSON value will use the provided type (only @ref + value_t::array and @ref value_t::object are valid); when @a type_deduction + is set to `true`, this parameter has no effect + + @throw type_error.301 if @a type_deduction is `false`, @a manual_type is + `value_t::object`, but @a init contains an element which is not a pair + whose first element is a string. In this case, the constructor could not + create an object. If @a type_deduction would have be `true`, an array + would have been created. See @ref object(initializer_list_t) + for an example. + + @complexity Linear in the size of the initializer list @a init. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @liveexample{The example below shows how JSON values are created from + initializer lists.,basic_json__list_init_t} + + @sa see @ref array(initializer_list_t) -- create a JSON array + value from an initializer list + @sa see @ref object(initializer_list_t) -- create a JSON object + value from an initializer list + + @since version 1.0.0 + */ + basic_json(initializer_list_t init, + bool type_deduction = true, + value_t manual_type = value_t::array) + { + // check if each element is an array with two elements whose first + // element is a string + bool is_an_object = std::all_of(init.begin(), init.end(), + [](const detail::json_ref& element_ref) + { + return element_ref->is_array() && element_ref->size() == 2 && (*element_ref)[0].is_string(); + }); + + // adjust type if type deduction is not wanted + if (!type_deduction) + { + // if array is wanted, do not create an object though possible + if (manual_type == value_t::array) + { + is_an_object = false; + } + + // if object is wanted but impossible, throw an exception + if (JSON_HEDLEY_UNLIKELY(manual_type == value_t::object && !is_an_object)) + { + JSON_THROW(type_error::create(301, "cannot create object from initializer list", basic_json())); + } + } + + if (is_an_object) + { + // the initializer list is a list of pairs -> create object + m_type = value_t::object; + m_value = value_t::object; + + for (auto& element_ref : init) + { + auto element = element_ref.moved_or_copied(); + m_value.object->emplace( + std::move(*((*element.m_value.array)[0].m_value.string)), + std::move((*element.m_value.array)[1])); + } + } + else + { + // the initializer list describes an array -> create array + m_type = value_t::array; + m_value.array = create(init.begin(), init.end()); + } + + set_parents(); + assert_invariant(); + } + + /*! + @brief explicitly create a binary array (without subtype) + + Creates a JSON binary array value from a given binary container. Binary + values are part of various binary formats, such as CBOR, MessagePack, and + BSON. This constructor is used to create a value for serialization to those + formats. + + @note Note, this function exists because of the difficulty in correctly + specifying the correct template overload in the standard value ctor, as both + JSON arrays and JSON binary arrays are backed with some form of a + `std::vector`. Because JSON binary arrays are a non-standard extension it + was decided that it would be best to prevent automatic initialization of a + binary array type, for backwards compatibility and so it does not happen on + accident. + + @param[in] init container containing bytes to use as binary type + + @return JSON binary array value + + @complexity Linear in the size of @a init. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @since version 3.8.0 + */ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json binary(const typename binary_t::container_type& init) + { + auto res = basic_json(); + res.m_type = value_t::binary; + res.m_value = init; + return res; + } + + /*! + @brief explicitly create a binary array (with subtype) + + Creates a JSON binary array value from a given binary container. Binary + values are part of various binary formats, such as CBOR, MessagePack, and + BSON. This constructor is used to create a value for serialization to those + formats. + + @note Note, this function exists because of the difficulty in correctly + specifying the correct template overload in the standard value ctor, as both + JSON arrays and JSON binary arrays are backed with some form of a + `std::vector`. Because JSON binary arrays are a non-standard extension it + was decided that it would be best to prevent automatic initialization of a + binary array type, for backwards compatibility and so it does not happen on + accident. + + @param[in] init container containing bytes to use as binary type + @param[in] subtype subtype to use in MessagePack and BSON + + @return JSON binary array value + + @complexity Linear in the size of @a init. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @since version 3.8.0 + */ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json binary(const typename binary_t::container_type& init, typename binary_t::subtype_type subtype) + { + auto res = basic_json(); + res.m_type = value_t::binary; + res.m_value = binary_t(init, subtype); + return res; + } + + /// @copydoc binary(const typename binary_t::container_type&) + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json binary(typename binary_t::container_type&& init) + { + auto res = basic_json(); + res.m_type = value_t::binary; + res.m_value = std::move(init); + return res; + } + + /// @copydoc binary(const typename binary_t::container_type&, typename binary_t::subtype_type) + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json binary(typename binary_t::container_type&& init, typename binary_t::subtype_type subtype) + { + auto res = basic_json(); + res.m_type = value_t::binary; + res.m_value = binary_t(std::move(init), subtype); + return res; + } + + /*! + @brief explicitly create an array from an initializer list + + Creates a JSON array value from a given initializer list. That is, given a + list of values `a, b, c`, creates the JSON value `[a, b, c]`. If the + initializer list is empty, the empty array `[]` is created. + + @note This function is only needed to express two edge cases that cannot + be realized with the initializer list constructor (@ref + basic_json(initializer_list_t, bool, value_t)). These cases + are: + 1. creating an array whose elements are all pairs whose first element is a + string -- in this case, the initializer list constructor would create an + object, taking the first elements as keys + 2. creating an empty array -- passing the empty initializer list to the + initializer list constructor yields an empty object + + @param[in] init initializer list with JSON values to create an array from + (optional) + + @return JSON array value + + @complexity Linear in the size of @a init. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @liveexample{The following code shows an example for the `array` + function.,array} + + @sa see @ref basic_json(initializer_list_t, bool, value_t) -- + create a JSON value from an initializer list + @sa see @ref object(initializer_list_t) -- create a JSON object + value from an initializer list + + @since version 1.0.0 + */ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json array(initializer_list_t init = {}) + { + return basic_json(init, false, value_t::array); + } + + /*! + @brief explicitly create an object from an initializer list + + Creates a JSON object value from a given initializer list. The initializer + lists elements must be pairs, and their first elements must be strings. If + the initializer list is empty, the empty object `{}` is created. + + @note This function is only added for symmetry reasons. In contrast to the + related function @ref array(initializer_list_t), there are + no cases which can only be expressed by this function. That is, any + initializer list @a init can also be passed to the initializer list + constructor @ref basic_json(initializer_list_t, bool, value_t). + + @param[in] init initializer list to create an object from (optional) + + @return JSON object value + + @throw type_error.301 if @a init is not a list of pairs whose first + elements are strings. In this case, no object can be created. When such a + value is passed to @ref basic_json(initializer_list_t, bool, value_t), + an array would have been created from the passed initializer list @a init. + See example below. + + @complexity Linear in the size of @a init. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @liveexample{The following code shows an example for the `object` + function.,object} + + @sa see @ref basic_json(initializer_list_t, bool, value_t) -- + create a JSON value from an initializer list + @sa see @ref array(initializer_list_t) -- create a JSON array + value from an initializer list + + @since version 1.0.0 + */ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json object(initializer_list_t init = {}) + { + return basic_json(init, false, value_t::object); + } + + /*! + @brief construct an array with count copies of given value + + Constructs a JSON array value by creating @a cnt copies of a passed value. + In case @a cnt is `0`, an empty array is created. + + @param[in] cnt the number of JSON copies of @a val to create + @param[in] val the JSON value to copy + + @post `std::distance(begin(),end()) == cnt` holds. + + @complexity Linear in @a cnt. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @liveexample{The following code shows examples for the @ref + basic_json(size_type\, const basic_json&) + constructor.,basic_json__size_type_basic_json} + + @since version 1.0.0 + */ + basic_json(size_type cnt, const basic_json& val) + : m_type(value_t::array) + { + m_value.array = create(cnt, val); + set_parents(); + assert_invariant(); + } + + /*! + @brief construct a JSON container given an iterator range + + Constructs the JSON value with the contents of the range `[first, last)`. + The semantics depends on the different types a JSON value can have: + - In case of a null type, invalid_iterator.206 is thrown. + - In case of other primitive types (number, boolean, or string), @a first + must be `begin()` and @a last must be `end()`. In this case, the value is + copied. Otherwise, invalid_iterator.204 is thrown. + - In case of structured types (array, object), the constructor behaves as + similar versions for `std::vector` or `std::map`; that is, a JSON array + or object is constructed from the values in the range. + + @tparam InputIT an input iterator type (@ref iterator or @ref + const_iterator) + + @param[in] first begin of the range to copy from (included) + @param[in] last end of the range to copy from (excluded) + + @pre Iterators @a first and @a last must be initialized. **This + precondition is enforced with an assertion (see warning).** If + assertions are switched off, a violation of this precondition yields + undefined behavior. + + @pre Range `[first, last)` is valid. Usually, this precondition cannot be + checked efficiently. Only certain edge cases are detected; see the + description of the exceptions below. A violation of this precondition + yields undefined behavior. + + @warning A precondition is enforced with a runtime assertion that will + result in calling `std::abort` if this precondition is not met. + Assertions can be disabled by defining `NDEBUG` at compile time. + See https://en.cppreference.com/w/cpp/error/assert for more + information. + + @throw invalid_iterator.201 if iterators @a first and @a last are not + compatible (i.e., do not belong to the same JSON value). In this case, + the range `[first, last)` is undefined. + @throw invalid_iterator.204 if iterators @a first and @a last belong to a + primitive type (number, boolean, or string), but @a first does not point + to the first element any more. In this case, the range `[first, last)` is + undefined. See example code below. + @throw invalid_iterator.206 if iterators @a first and @a last belong to a + null value. In this case, the range `[first, last)` is undefined. + + @complexity Linear in distance between @a first and @a last. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @liveexample{The example below shows several ways to create JSON values by + specifying a subrange with iterators.,basic_json__InputIt_InputIt} + + @since version 1.0.0 + */ + template < class InputIT, typename std::enable_if < + std::is_same::value || + std::is_same::value, int >::type = 0 > + basic_json(InputIT first, InputIT last) + { + JSON_ASSERT(first.m_object != nullptr); + JSON_ASSERT(last.m_object != nullptr); + + // make sure iterator fits the current value + if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) + { + JSON_THROW(invalid_iterator::create(201, "iterators are not compatible", basic_json())); + } + + // copy type from first iterator + m_type = first.m_object->m_type; + + // check if iterator range is complete for primitive values + switch (m_type) + { + case value_t::boolean: + case value_t::number_float: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::string: + { + if (JSON_HEDLEY_UNLIKELY(!first.m_it.primitive_iterator.is_begin() + || !last.m_it.primitive_iterator.is_end())) + { + JSON_THROW(invalid_iterator::create(204, "iterators out of range", *first.m_object)); + } + break; + } + + case value_t::null: + case value_t::object: + case value_t::array: + case value_t::binary: + case value_t::discarded: + default: + break; + } + + switch (m_type) + { + case value_t::number_integer: + { + m_value.number_integer = first.m_object->m_value.number_integer; + break; + } + + case value_t::number_unsigned: + { + m_value.number_unsigned = first.m_object->m_value.number_unsigned; + break; + } + + case value_t::number_float: + { + m_value.number_float = first.m_object->m_value.number_float; + break; + } + + case value_t::boolean: + { + m_value.boolean = first.m_object->m_value.boolean; + break; + } + + case value_t::string: + { + m_value = *first.m_object->m_value.string; + break; + } + + case value_t::object: + { + m_value.object = create(first.m_it.object_iterator, + last.m_it.object_iterator); + break; + } + + case value_t::array: + { + m_value.array = create(first.m_it.array_iterator, + last.m_it.array_iterator); + break; + } + + case value_t::binary: + { + m_value = *first.m_object->m_value.binary; + break; + } + + case value_t::null: + case value_t::discarded: + default: + JSON_THROW(invalid_iterator::create(206, "cannot construct with iterators from " + std::string(first.m_object->type_name()), *first.m_object)); + } + + set_parents(); + assert_invariant(); + } + + + /////////////////////////////////////// + // other constructors and destructor // + /////////////////////////////////////// + + template, + std::is_same>::value, int> = 0 > + basic_json(const JsonRef& ref) : basic_json(ref.moved_or_copied()) {} + + /*! + @brief copy constructor + + Creates a copy of a given JSON value. + + @param[in] other the JSON value to copy + + @post `*this == other` + + @complexity Linear in the size of @a other. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes to any JSON value. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is linear. + - As postcondition, it holds: `other == basic_json(other)`. + + @liveexample{The following code shows an example for the copy + constructor.,basic_json__basic_json} + + @since version 1.0.0 + */ + basic_json(const basic_json& other) + : m_type(other.m_type) + { + // check of passed value is valid + other.assert_invariant(); + + switch (m_type) + { + case value_t::object: + { + m_value = *other.m_value.object; + break; + } + + case value_t::array: + { + m_value = *other.m_value.array; + break; + } + + case value_t::string: + { + m_value = *other.m_value.string; + break; + } + + case value_t::boolean: + { + m_value = other.m_value.boolean; + break; + } + + case value_t::number_integer: + { + m_value = other.m_value.number_integer; + break; + } + + case value_t::number_unsigned: + { + m_value = other.m_value.number_unsigned; + break; + } + + case value_t::number_float: + { + m_value = other.m_value.number_float; + break; + } + + case value_t::binary: + { + m_value = *other.m_value.binary; + break; + } + + case value_t::null: + case value_t::discarded: + default: + break; + } + + set_parents(); + assert_invariant(); + } + + /*! + @brief move constructor + + Move constructor. Constructs a JSON value with the contents of the given + value @a other using move semantics. It "steals" the resources from @a + other and leaves it as JSON null value. + + @param[in,out] other value to move to this object + + @post `*this` has the same value as @a other before the call. + @post @a other is a JSON null value. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this constructor never throws + exceptions. + + @requirement This function helps `basic_json` satisfying the + [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible) + requirements. + + @liveexample{The code below shows the move constructor explicitly called + via std::move.,basic_json__moveconstructor} + + @since version 1.0.0 + */ + basic_json(basic_json&& other) noexcept + : m_type(std::move(other.m_type)), + m_value(std::move(other.m_value)) + { + // check that passed value is valid + other.assert_invariant(false); + + // invalidate payload + other.m_type = value_t::null; + other.m_value = {}; + + set_parents(); + assert_invariant(); + } + + /*! + @brief copy assignment + + Copy assignment operator. Copies a JSON value via the "copy and swap" + strategy: It is expressed in terms of the copy constructor, destructor, + and the `swap()` member function. + + @param[in] other value to copy from + + @complexity Linear. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is linear. + + @liveexample{The code below shows and example for the copy assignment. It + creates a copy of value `a` which is then swapped with `b`. Finally\, the + copy of `a` (which is the null value after the swap) is + destroyed.,basic_json__copyassignment} + + @since version 1.0.0 + */ + basic_json& operator=(basic_json other) noexcept ( + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value&& + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value + ) + { + // check that passed value is valid + other.assert_invariant(); + + using std::swap; + swap(m_type, other.m_type); + swap(m_value, other.m_value); + + set_parents(); + assert_invariant(); + return *this; + } + + /*! + @brief destructor + + Destroys the JSON value and frees all allocated memory. + + @complexity Linear. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is linear. + - All stored elements are destroyed and all memory is freed. + + @since version 1.0.0 + */ + ~basic_json() noexcept + { + assert_invariant(false); + m_value.destroy(m_type); + } + + /// @} + + public: + /////////////////////// + // object inspection // + /////////////////////// + + /// @name object inspection + /// Functions to inspect the type of a JSON value. + /// @{ + + /*! + @brief serialization + + Serialization function for JSON values. The function tries to mimic + Python's `json.dumps()` function, and currently supports its @a indent + and @a ensure_ascii parameters. + + @param[in] indent If indent is nonnegative, then array elements and object + members will be pretty-printed with that indent level. An indent level of + `0` will only insert newlines. `-1` (the default) selects the most compact + representation. + @param[in] indent_char The character to use for indentation if @a indent is + greater than `0`. The default is ` ` (space). + @param[in] ensure_ascii If @a ensure_ascii is true, all non-ASCII characters + in the output are escaped with `\uXXXX` sequences, and the result consists + of ASCII characters only. + @param[in] error_handler how to react on decoding errors; there are three + possible values: `strict` (throws and exception in case a decoding error + occurs; default), `replace` (replace invalid UTF-8 sequences with U+FFFD), + and `ignore` (ignore invalid UTF-8 sequences during serialization; all + bytes are copied to the output unchanged). + + @return string containing the serialization of the JSON value + + @throw type_error.316 if a string stored inside the JSON value is not + UTF-8 encoded and @a error_handler is set to strict + + @note Binary values are serialized as object containing two keys: + - "bytes": an array of bytes as integers + - "subtype": the subtype as integer or "null" if the binary has no subtype + + @complexity Linear. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @liveexample{The following example shows the effect of different @a indent\, + @a indent_char\, and @a ensure_ascii parameters to the result of the + serialization.,dump} + + @see https://docs.python.org/2/library/json.html#json.dump + + @since version 1.0.0; indentation character @a indent_char, option + @a ensure_ascii and exceptions added in version 3.0.0; error + handlers added in version 3.4.0; serialization of binary values added + in version 3.8.0. + */ + string_t dump(const int indent = -1, + const char indent_char = ' ', + const bool ensure_ascii = false, + const error_handler_t error_handler = error_handler_t::strict) const + { + string_t result; + serializer s(detail::output_adapter(result), indent_char, error_handler); + + if (indent >= 0) + { + s.dump(*this, true, ensure_ascii, static_cast(indent)); + } + else + { + s.dump(*this, false, ensure_ascii, 0); + } + + return result; + } + + /*! + @brief return the type of the JSON value (explicit) + + Return the type of the JSON value as a value from the @ref value_t + enumeration. + + @return the type of the JSON value + Value type | return value + ------------------------- | ------------------------- + null | value_t::null + boolean | value_t::boolean + string | value_t::string + number (integer) | value_t::number_integer + number (unsigned integer) | value_t::number_unsigned + number (floating-point) | value_t::number_float + object | value_t::object + array | value_t::array + binary | value_t::binary + discarded | value_t::discarded + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `type()` for all JSON + types.,type} + + @sa see @ref operator value_t() -- return the type of the JSON value (implicit) + @sa see @ref type_name() -- return the type as string + + @since version 1.0.0 + */ + constexpr value_t type() const noexcept + { + return m_type; + } + + /*! + @brief return whether type is primitive + + This function returns true if and only if the JSON type is primitive + (string, number, boolean, or null). + + @return `true` if type is primitive (string, number, boolean, or null), + `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_primitive()` for all JSON + types.,is_primitive} + + @sa see @ref is_structured() -- returns whether JSON value is structured + @sa see @ref is_null() -- returns whether JSON value is `null` + @sa see @ref is_string() -- returns whether JSON value is a string + @sa see @ref is_boolean() -- returns whether JSON value is a boolean + @sa see @ref is_number() -- returns whether JSON value is a number + @sa see @ref is_binary() -- returns whether JSON value is a binary array + + @since version 1.0.0 + */ + constexpr bool is_primitive() const noexcept + { + return is_null() || is_string() || is_boolean() || is_number() || is_binary(); + } + + /*! + @brief return whether type is structured + + This function returns true if and only if the JSON type is structured + (array or object). + + @return `true` if type is structured (array or object), `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_structured()` for all JSON + types.,is_structured} + + @sa see @ref is_primitive() -- returns whether value is primitive + @sa see @ref is_array() -- returns whether value is an array + @sa see @ref is_object() -- returns whether value is an object + + @since version 1.0.0 + */ + constexpr bool is_structured() const noexcept + { + return is_array() || is_object(); + } + + /*! + @brief return whether value is null + + This function returns true if and only if the JSON value is null. + + @return `true` if type is null, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_null()` for all JSON + types.,is_null} + + @since version 1.0.0 + */ + constexpr bool is_null() const noexcept + { + return m_type == value_t::null; + } + + /*! + @brief return whether value is a boolean + + This function returns true if and only if the JSON value is a boolean. + + @return `true` if type is boolean, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_boolean()` for all JSON + types.,is_boolean} + + @since version 1.0.0 + */ + constexpr bool is_boolean() const noexcept + { + return m_type == value_t::boolean; + } + + /*! + @brief return whether value is a number + + This function returns true if and only if the JSON value is a number. This + includes both integer (signed and unsigned) and floating-point values. + + @return `true` if type is number (regardless whether integer, unsigned + integer or floating-type), `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_number()` for all JSON + types.,is_number} + + @sa see @ref is_number_integer() -- check if value is an integer or unsigned + integer number + @sa see @ref is_number_unsigned() -- check if value is an unsigned integer + number + @sa see @ref is_number_float() -- check if value is a floating-point number + + @since version 1.0.0 + */ + constexpr bool is_number() const noexcept + { + return is_number_integer() || is_number_float(); + } + + /*! + @brief return whether value is an integer number + + This function returns true if and only if the JSON value is a signed or + unsigned integer number. This excludes floating-point values. + + @return `true` if type is an integer or unsigned integer number, `false` + otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_number_integer()` for all + JSON types.,is_number_integer} + + @sa see @ref is_number() -- check if value is a number + @sa see @ref is_number_unsigned() -- check if value is an unsigned integer + number + @sa see @ref is_number_float() -- check if value is a floating-point number + + @since version 1.0.0 + */ + constexpr bool is_number_integer() const noexcept + { + return m_type == value_t::number_integer || m_type == value_t::number_unsigned; + } + + /*! + @brief return whether value is an unsigned integer number + + This function returns true if and only if the JSON value is an unsigned + integer number. This excludes floating-point and signed integer values. + + @return `true` if type is an unsigned integer number, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_number_unsigned()` for all + JSON types.,is_number_unsigned} + + @sa see @ref is_number() -- check if value is a number + @sa see @ref is_number_integer() -- check if value is an integer or unsigned + integer number + @sa see @ref is_number_float() -- check if value is a floating-point number + + @since version 2.0.0 + */ + constexpr bool is_number_unsigned() const noexcept + { + return m_type == value_t::number_unsigned; + } + + /*! + @brief return whether value is a floating-point number + + This function returns true if and only if the JSON value is a + floating-point number. This excludes signed and unsigned integer values. + + @return `true` if type is a floating-point number, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_number_float()` for all + JSON types.,is_number_float} + + @sa see @ref is_number() -- check if value is number + @sa see @ref is_number_integer() -- check if value is an integer number + @sa see @ref is_number_unsigned() -- check if value is an unsigned integer + number + + @since version 1.0.0 + */ + constexpr bool is_number_float() const noexcept + { + return m_type == value_t::number_float; + } + + /*! + @brief return whether value is an object + + This function returns true if and only if the JSON value is an object. + + @return `true` if type is object, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_object()` for all JSON + types.,is_object} + + @since version 1.0.0 + */ + constexpr bool is_object() const noexcept + { + return m_type == value_t::object; + } + + /*! + @brief return whether value is an array + + This function returns true if and only if the JSON value is an array. + + @return `true` if type is array, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_array()` for all JSON + types.,is_array} + + @since version 1.0.0 + */ + constexpr bool is_array() const noexcept + { + return m_type == value_t::array; + } + + /*! + @brief return whether value is a string + + This function returns true if and only if the JSON value is a string. + + @return `true` if type is string, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_string()` for all JSON + types.,is_string} + + @since version 1.0.0 + */ + constexpr bool is_string() const noexcept + { + return m_type == value_t::string; + } + + /*! + @brief return whether value is a binary array + + This function returns true if and only if the JSON value is a binary array. + + @return `true` if type is binary array, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_binary()` for all JSON + types.,is_binary} + + @since version 3.8.0 + */ + constexpr bool is_binary() const noexcept + { + return m_type == value_t::binary; + } + + /*! + @brief return whether value is discarded + + This function returns true if and only if the JSON value was discarded + during parsing with a callback function (see @ref parser_callback_t). + + @note This function will always be `false` for JSON values after parsing. + That is, discarded values can only occur during parsing, but will be + removed when inside a structured value or replaced by null in other cases. + + @return `true` if type is discarded, `false` otherwise. + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies `is_discarded()` for all JSON + types.,is_discarded} + + @since version 1.0.0 + */ + constexpr bool is_discarded() const noexcept + { + return m_type == value_t::discarded; + } + + /*! + @brief return the type of the JSON value (implicit) + + Implicitly return the type of the JSON value as a value from the @ref + value_t enumeration. + + @return the type of the JSON value + + @complexity Constant. + + @exceptionsafety No-throw guarantee: this member function never throws + exceptions. + + @liveexample{The following code exemplifies the @ref value_t operator for + all JSON types.,operator__value_t} + + @sa see @ref type() -- return the type of the JSON value (explicit) + @sa see @ref type_name() -- return the type as string + + @since version 1.0.0 + */ + constexpr operator value_t() const noexcept + { + return m_type; + } + + /// @} + + private: + ////////////////// + // value access // + ////////////////// + + /// get a boolean (explicit) + boolean_t get_impl(boolean_t* /*unused*/) const + { + if (JSON_HEDLEY_LIKELY(is_boolean())) + { + return m_value.boolean; + } + + JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(type_name()), *this)); + } + + /// get a pointer to the value (object) + object_t* get_impl_ptr(object_t* /*unused*/) noexcept + { + return is_object() ? m_value.object : nullptr; + } + + /// get a pointer to the value (object) + constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept + { + return is_object() ? m_value.object : nullptr; + } + + /// get a pointer to the value (array) + array_t* get_impl_ptr(array_t* /*unused*/) noexcept + { + return is_array() ? m_value.array : nullptr; + } + + /// get a pointer to the value (array) + constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept + { + return is_array() ? m_value.array : nullptr; + } + + /// get a pointer to the value (string) + string_t* get_impl_ptr(string_t* /*unused*/) noexcept + { + return is_string() ? m_value.string : nullptr; + } + + /// get a pointer to the value (string) + constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept + { + return is_string() ? m_value.string : nullptr; + } + + /// get a pointer to the value (boolean) + boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept + { + return is_boolean() ? &m_value.boolean : nullptr; + } + + /// get a pointer to the value (boolean) + constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept + { + return is_boolean() ? &m_value.boolean : nullptr; + } + + /// get a pointer to the value (integer number) + number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept + { + return is_number_integer() ? &m_value.number_integer : nullptr; + } + + /// get a pointer to the value (integer number) + constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept + { + return is_number_integer() ? &m_value.number_integer : nullptr; + } + + /// get a pointer to the value (unsigned number) + number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept + { + return is_number_unsigned() ? &m_value.number_unsigned : nullptr; + } + + /// get a pointer to the value (unsigned number) + constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept + { + return is_number_unsigned() ? &m_value.number_unsigned : nullptr; + } + + /// get a pointer to the value (floating-point number) + number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept + { + return is_number_float() ? &m_value.number_float : nullptr; + } + + /// get a pointer to the value (floating-point number) + constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept + { + return is_number_float() ? &m_value.number_float : nullptr; + } + + /// get a pointer to the value (binary) + binary_t* get_impl_ptr(binary_t* /*unused*/) noexcept + { + return is_binary() ? m_value.binary : nullptr; + } + + /// get a pointer to the value (binary) + constexpr const binary_t* get_impl_ptr(const binary_t* /*unused*/) const noexcept + { + return is_binary() ? m_value.binary : nullptr; + } + + /*! + @brief helper function to implement get_ref() + + This function helps to implement get_ref() without code duplication for + const and non-const overloads + + @tparam ThisType will be deduced as `basic_json` or `const basic_json` + + @throw type_error.303 if ReferenceType does not match underlying value + type of the current JSON + */ + template + static ReferenceType get_ref_impl(ThisType& obj) + { + // delegate the call to get_ptr<>() + auto* ptr = obj.template get_ptr::type>(); + + if (JSON_HEDLEY_LIKELY(ptr != nullptr)) + { + return *ptr; + } + + JSON_THROW(type_error::create(303, "incompatible ReferenceType for get_ref, actual type is " + std::string(obj.type_name()), obj)); + } + + public: + /// @name value access + /// Direct access to the stored value of a JSON value. + /// @{ + + /*! + @brief get a pointer value (implicit) + + Implicit pointer access to the internally stored JSON value. No copies are + made. + + @warning Writing data to the pointee of the result yields an undefined + state. + + @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref + object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, + @ref number_unsigned_t, or @ref number_float_t. Enforced by a static + assertion. + + @return pointer to the internally stored JSON value if the requested + pointer type @a PointerType fits to the JSON value; `nullptr` otherwise + + @complexity Constant. + + @liveexample{The example below shows how pointers to internal values of a + JSON value can be requested. Note that no type conversions are made and a + `nullptr` is returned if the value and the requested pointer type does not + match.,get_ptr} + + @since version 1.0.0 + */ + template::value, int>::type = 0> + auto get_ptr() noexcept -> decltype(std::declval().get_impl_ptr(std::declval())) + { + // delegate the call to get_impl_ptr<>() + return get_impl_ptr(static_cast(nullptr)); + } + + /*! + @brief get a pointer value (implicit) + @copydoc get_ptr() + */ + template < typename PointerType, typename std::enable_if < + std::is_pointer::value&& + std::is_const::type>::value, int >::type = 0 > + constexpr auto get_ptr() const noexcept -> decltype(std::declval().get_impl_ptr(std::declval())) + { + // delegate the call to get_impl_ptr<>() const + return get_impl_ptr(static_cast(nullptr)); + } + + private: + /*! + @brief get a value (explicit) + + Explicit type conversion between the JSON value and a compatible value + which is [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible) + and [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). + The value is converted by calling the @ref json_serializer + `from_json()` method. + + The function is equivalent to executing + @code {.cpp} + ValueType ret; + JSONSerializer::from_json(*this, ret); + return ret; + @endcode + + This overloads is chosen if: + - @a ValueType is not @ref basic_json, + - @ref json_serializer has a `from_json()` method of the form + `void from_json(const basic_json&, ValueType&)`, and + - @ref json_serializer does not have a `from_json()` method of + the form `ValueType from_json(const basic_json&)` + + @tparam ValueType the returned value type + + @return copy of the JSON value, converted to @a ValueType + + @throw what @ref json_serializer `from_json()` method throws + + @liveexample{The example below shows several conversions from JSON values + to other types. There a few things to note: (1) Floating-point numbers can + be converted to integers\, (2) A JSON array can be converted to a standard + `std::vector`\, (3) A JSON object can be converted to C++ + associative containers such as `std::unordered_map`.,get__ValueType_const} + + @since version 2.1.0 + */ + template < typename ValueType, + detail::enable_if_t < + detail::is_default_constructible::value&& + detail::has_from_json::value, + int > = 0 > + ValueType get_impl(detail::priority_tag<0> /*unused*/) const noexcept(noexcept( + JSONSerializer::from_json(std::declval(), std::declval()))) + { + ValueType ret{}; + JSONSerializer::from_json(*this, ret); + return ret; + } + + /*! + @brief get a value (explicit); special case + + Explicit type conversion between the JSON value and a compatible value + which is **not** [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible) + and **not** [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible). + The value is converted by calling the @ref json_serializer + `from_json()` method. + + The function is equivalent to executing + @code {.cpp} + return JSONSerializer::from_json(*this); + @endcode + + This overloads is chosen if: + - @a ValueType is not @ref basic_json and + - @ref json_serializer has a `from_json()` method of the form + `ValueType from_json(const basic_json&)` + + @note If @ref json_serializer has both overloads of + `from_json()`, this one is chosen. + + @tparam ValueType the returned value type + + @return copy of the JSON value, converted to @a ValueType + + @throw what @ref json_serializer `from_json()` method throws + + @since version 2.1.0 + */ + template < typename ValueType, + detail::enable_if_t < + detail::has_non_default_from_json::value, + int > = 0 > + ValueType get_impl(detail::priority_tag<1> /*unused*/) const noexcept(noexcept( + JSONSerializer::from_json(std::declval()))) + { + return JSONSerializer::from_json(*this); + } + + /*! + @brief get special-case overload + + This overloads converts the current @ref basic_json in a different + @ref basic_json type + + @tparam BasicJsonType == @ref basic_json + + @return a copy of *this, converted into @a BasicJsonType + + @complexity Depending on the implementation of the called `from_json()` + method. + + @since version 3.2.0 + */ + template < typename BasicJsonType, + detail::enable_if_t < + detail::is_basic_json::value, + int > = 0 > + BasicJsonType get_impl(detail::priority_tag<2> /*unused*/) const + { + return *this; + } + + /*! + @brief get special-case overload + + This overloads avoids a lot of template boilerplate, it can be seen as the + identity method + + @tparam BasicJsonType == @ref basic_json + + @return a copy of *this + + @complexity Constant. + + @since version 2.1.0 + */ + template::value, + int> = 0> + basic_json get_impl(detail::priority_tag<3> /*unused*/) const + { + return *this; + } + + /*! + @brief get a pointer value (explicit) + @copydoc get() + */ + template::value, + int> = 0> + constexpr auto get_impl(detail::priority_tag<4> /*unused*/) const noexcept + -> decltype(std::declval().template get_ptr()) + { + // delegate the call to get_ptr + return get_ptr(); + } + + public: + /*! + @brief get a (pointer) value (explicit) + + Performs explicit type conversion between the JSON value and a compatible value if required. + + - If the requested type is a pointer to the internally stored JSON value that pointer is returned. + No copies are made. + + - If the requested type is the current @ref basic_json, or a different @ref basic_json convertible + from the current @ref basic_json. + + - Otherwise the value is converted by calling the @ref json_serializer `from_json()` + method. + + @tparam ValueTypeCV the provided value type + @tparam ValueType the returned value type + + @return copy of the JSON value, converted to @tparam ValueType if necessary + + @throw what @ref json_serializer `from_json()` method throws if conversion is required + + @since version 2.1.0 + */ + template < typename ValueTypeCV, typename ValueType = detail::uncvref_t> +#if defined(JSON_HAS_CPP_14) + constexpr +#endif + auto get() const noexcept( + noexcept(std::declval().template get_impl(detail::priority_tag<4> {}))) + -> decltype(std::declval().template get_impl(detail::priority_tag<4> {})) + { + // we cannot static_assert on ValueTypeCV being non-const, because + // there is support for get(), which is why we + // still need the uncvref + static_assert(!std::is_reference::value, + "get() cannot be used with reference types, you might want to use get_ref()"); + return get_impl(detail::priority_tag<4> {}); + } + + /*! + @brief get a pointer value (explicit) + + Explicit pointer access to the internally stored JSON value. No copies are + made. + + @warning The pointer becomes invalid if the underlying JSON object + changes. + + @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref + object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, + @ref number_unsigned_t, or @ref number_float_t. + + @return pointer to the internally stored JSON value if the requested + pointer type @a PointerType fits to the JSON value; `nullptr` otherwise + + @complexity Constant. + + @liveexample{The example below shows how pointers to internal values of a + JSON value can be requested. Note that no type conversions are made and a + `nullptr` is returned if the value and the requested pointer type does not + match.,get__PointerType} + + @sa see @ref get_ptr() for explicit pointer-member access + + @since version 1.0.0 + */ + template::value, int>::type = 0> + auto get() noexcept -> decltype(std::declval().template get_ptr()) + { + // delegate the call to get_ptr + return get_ptr(); + } + + /*! + @brief get a value (explicit) + + Explicit type conversion between the JSON value and a compatible value. + The value is filled into the input parameter by calling the @ref json_serializer + `from_json()` method. + + The function is equivalent to executing + @code {.cpp} + ValueType v; + JSONSerializer::from_json(*this, v); + @endcode + + This overloads is chosen if: + - @a ValueType is not @ref basic_json, + - @ref json_serializer has a `from_json()` method of the form + `void from_json(const basic_json&, ValueType&)`, and + + @tparam ValueType the input parameter type. + + @return the input parameter, allowing chaining calls. + + @throw what @ref json_serializer `from_json()` method throws + + @liveexample{The example below shows several conversions from JSON values + to other types. There a few things to note: (1) Floating-point numbers can + be converted to integers\, (2) A JSON array can be converted to a standard + `std::vector`\, (3) A JSON object can be converted to C++ + associative containers such as `std::unordered_map`.,get_to} + + @since version 3.3.0 + */ + template < typename ValueType, + detail::enable_if_t < + !detail::is_basic_json::value&& + detail::has_from_json::value, + int > = 0 > + ValueType & get_to(ValueType& v) const noexcept(noexcept( + JSONSerializer::from_json(std::declval(), v))) + { + JSONSerializer::from_json(*this, v); + return v; + } + + // specialization to allow to call get_to with a basic_json value + // see https://github.com/nlohmann/json/issues/2175 + template::value, + int> = 0> + ValueType & get_to(ValueType& v) const + { + v = *this; + return v; + } + + template < + typename T, std::size_t N, + typename Array = T (&)[N], // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) + detail::enable_if_t < + detail::has_from_json::value, int > = 0 > + Array get_to(T (&v)[N]) const // NOLINT(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays) + noexcept(noexcept(JSONSerializer::from_json( + std::declval(), v))) + { + JSONSerializer::from_json(*this, v); + return v; + } + + /*! + @brief get a reference value (implicit) + + Implicit reference access to the internally stored JSON value. No copies + are made. + + @warning Writing data to the referee of the result yields an undefined + state. + + @tparam ReferenceType reference type; must be a reference to @ref array_t, + @ref object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, or + @ref number_float_t. Enforced by static assertion. + + @return reference to the internally stored JSON value if the requested + reference type @a ReferenceType fits to the JSON value; throws + type_error.303 otherwise + + @throw type_error.303 in case passed type @a ReferenceType is incompatible + with the stored JSON value; see example below + + @complexity Constant. + + @liveexample{The example shows several calls to `get_ref()`.,get_ref} + + @since version 1.1.0 + */ + template::value, int>::type = 0> + ReferenceType get_ref() + { + // delegate call to get_ref_impl + return get_ref_impl(*this); + } + + /*! + @brief get a reference value (implicit) + @copydoc get_ref() + */ + template < typename ReferenceType, typename std::enable_if < + std::is_reference::value&& + std::is_const::type>::value, int >::type = 0 > + ReferenceType get_ref() const + { + // delegate call to get_ref_impl + return get_ref_impl(*this); + } + + /*! + @brief get a value (implicit) + + Implicit type conversion between the JSON value and a compatible value. + The call is realized by calling @ref get() const. + + @tparam ValueType non-pointer type compatible to the JSON value, for + instance `int` for JSON integer numbers, `bool` for JSON booleans, or + `std::vector` types for JSON arrays. The character type of @ref string_t + as well as an initializer list of this type is excluded to avoid + ambiguities as these types implicitly convert to `std::string`. + + @return copy of the JSON value, converted to type @a ValueType + + @throw type_error.302 in case passed type @a ValueType is incompatible + to the JSON value type (e.g., the JSON value is of type boolean, but a + string is requested); see example below + + @complexity Linear in the size of the JSON value. + + @liveexample{The example below shows several conversions from JSON values + to other types. There a few things to note: (1) Floating-point numbers can + be converted to integers\, (2) A JSON array can be converted to a standard + `std::vector`\, (3) A JSON object can be converted to C++ + associative containers such as `std::unordered_map`.,operator__ValueType} + + @since version 1.0.0 + */ + template < typename ValueType, typename std::enable_if < + detail::conjunction < + detail::negation>, + detail::negation>>, + detail::negation>, + detail::negation>, + detail::negation>>, + +#if defined(JSON_HAS_CPP_17) && (defined(__GNUC__) || (defined(_MSC_VER) && _MSC_VER >= 1910 && _MSC_VER <= 1914)) + detail::negation>, +#endif + detail::is_detected_lazy + >::value, int >::type = 0 > + JSON_EXPLICIT operator ValueType() const + { + // delegate the call to get<>() const + return get(); + } + + /*! + @return reference to the binary value + + @throw type_error.302 if the value is not binary + + @sa see @ref is_binary() to check if the value is binary + + @since version 3.8.0 + */ + binary_t& get_binary() + { + if (!is_binary()) + { + JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(type_name()), *this)); + } + + return *get_ptr(); + } + + /// @copydoc get_binary() + const binary_t& get_binary() const + { + if (!is_binary()) + { + JSON_THROW(type_error::create(302, "type must be binary, but is " + std::string(type_name()), *this)); + } + + return *get_ptr(); + } + + /// @} + + + //////////////////// + // element access // + //////////////////// + + /// @name element access + /// Access to the JSON value. + /// @{ + + /*! + @brief access specified array element with bounds checking + + Returns a reference to the element at specified location @a idx, with + bounds checking. + + @param[in] idx index of the element to access + + @return reference to the element at index @a idx + + @throw type_error.304 if the JSON value is not an array; in this case, + calling `at` with an index makes no sense. See example below. + @throw out_of_range.401 if the index @a idx is out of range of the array; + that is, `idx >= size()`. See example below. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Constant. + + @since version 1.0.0 + + @liveexample{The example below shows how array elements can be read and + written using `at()`. It also demonstrates the different exceptions that + can be thrown.,at__size_type} + */ + reference at(size_type idx) + { + // at only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + JSON_TRY + { + return set_parent(m_value.array->at(idx)); + } + JSON_CATCH (std::out_of_range&) + { + // create better exception explanation + JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); + } + } + else + { + JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); + } + } + + /*! + @brief access specified array element with bounds checking + + Returns a const reference to the element at specified location @a idx, + with bounds checking. + + @param[in] idx index of the element to access + + @return const reference to the element at index @a idx + + @throw type_error.304 if the JSON value is not an array; in this case, + calling `at` with an index makes no sense. See example below. + @throw out_of_range.401 if the index @a idx is out of range of the array; + that is, `idx >= size()`. See example below. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Constant. + + @since version 1.0.0 + + @liveexample{The example below shows how array elements can be read using + `at()`. It also demonstrates the different exceptions that can be thrown., + at__size_type_const} + */ + const_reference at(size_type idx) const + { + // at only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + JSON_TRY + { + return m_value.array->at(idx); + } + JSON_CATCH (std::out_of_range&) + { + // create better exception explanation + JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); + } + } + else + { + JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); + } + } + + /*! + @brief access specified object element with bounds checking + + Returns a reference to the element at with specified key @a key, with + bounds checking. + + @param[in] key key of the element to access + + @return reference to the element at key @a key + + @throw type_error.304 if the JSON value is not an object; in this case, + calling `at` with a key makes no sense. See example below. + @throw out_of_range.403 if the key @a key is is not stored in the object; + that is, `find(key) == end()`. See example below. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Logarithmic in the size of the container. + + @sa see @ref operator[](const typename object_t::key_type&) for unchecked + access by reference + @sa see @ref value() for access by value with a default value + + @since version 1.0.0 + + @liveexample{The example below shows how object elements can be read and + written using `at()`. It also demonstrates the different exceptions that + can be thrown.,at__object_t_key_type} + */ + reference at(const typename object_t::key_type& key) + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + JSON_TRY + { + return set_parent(m_value.object->at(key)); + } + JSON_CATCH (std::out_of_range&) + { + // create better exception explanation + JSON_THROW(out_of_range::create(403, "key '" + key + "' not found", *this)); + } + } + else + { + JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); + } + } + + /*! + @brief access specified object element with bounds checking + + Returns a const reference to the element at with specified key @a key, + with bounds checking. + + @param[in] key key of the element to access + + @return const reference to the element at key @a key + + @throw type_error.304 if the JSON value is not an object; in this case, + calling `at` with a key makes no sense. See example below. + @throw out_of_range.403 if the key @a key is is not stored in the object; + that is, `find(key) == end()`. See example below. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Logarithmic in the size of the container. + + @sa see @ref operator[](const typename object_t::key_type&) for unchecked + access by reference + @sa see @ref value() for access by value with a default value + + @since version 1.0.0 + + @liveexample{The example below shows how object elements can be read using + `at()`. It also demonstrates the different exceptions that can be thrown., + at__object_t_key_type_const} + */ + const_reference at(const typename object_t::key_type& key) const + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + JSON_TRY + { + return m_value.object->at(key); + } + JSON_CATCH (std::out_of_range&) + { + // create better exception explanation + JSON_THROW(out_of_range::create(403, "key '" + key + "' not found", *this)); + } + } + else + { + JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name()), *this)); + } + } + + /*! + @brief access specified array element + + Returns a reference to the element at specified location @a idx. + + @note If @a idx is beyond the range of the array (i.e., `idx >= size()`), + then the array is silently filled up with `null` values to make `idx` a + valid reference to the last stored element. + + @param[in] idx index of the element to access + + @return reference to the element at index @a idx + + @throw type_error.305 if the JSON value is not an array or null; in that + cases, using the [] operator with an index makes no sense. + + @complexity Constant if @a idx is in the range of the array. Otherwise + linear in `idx - size()`. + + @liveexample{The example below shows how array elements can be read and + written using `[]` operator. Note the addition of `null` + values.,operatorarray__size_type} + + @since version 1.0.0 + */ + reference operator[](size_type idx) + { + // implicitly convert null value to an empty array + if (is_null()) + { + m_type = value_t::array; + m_value.array = create(); + assert_invariant(); + } + + // operator[] only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + // fill up array with null values if given idx is outside range + if (idx >= m_value.array->size()) + { +#if JSON_DIAGNOSTICS + // remember array size before resizing + const auto previous_size = m_value.array->size(); +#endif + m_value.array->resize(idx + 1); + +#if JSON_DIAGNOSTICS + // set parent for values added above + set_parents(begin() + static_cast(previous_size), static_cast(idx + 1 - previous_size)); +#endif + } + + return m_value.array->operator[](idx); + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name()), *this)); + } + + /*! + @brief access specified array element + + Returns a const reference to the element at specified location @a idx. + + @param[in] idx index of the element to access + + @return const reference to the element at index @a idx + + @throw type_error.305 if the JSON value is not an array; in that case, + using the [] operator with an index makes no sense. + + @complexity Constant. + + @liveexample{The example below shows how array elements can be read using + the `[]` operator.,operatorarray__size_type_const} + + @since version 1.0.0 + */ + const_reference operator[](size_type idx) const + { + // const operator[] only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + return m_value.array->operator[](idx); + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name()), *this)); + } + + /*! + @brief access specified object element + + Returns a reference to the element at with specified key @a key. + + @note If @a key is not found in the object, then it is silently added to + the object and filled with a `null` value to make `key` a valid reference. + In case the value was `null` before, it is converted to an object. + + @param[in] key key of the element to access + + @return reference to the element at key @a key + + @throw type_error.305 if the JSON value is not an object or null; in that + cases, using the [] operator with a key makes no sense. + + @complexity Logarithmic in the size of the container. + + @liveexample{The example below shows how object elements can be read and + written using the `[]` operator.,operatorarray__key_type} + + @sa see @ref at(const typename object_t::key_type&) for access by reference + with range checking + @sa see @ref value() for access by value with a default value + + @since version 1.0.0 + */ + reference operator[](const typename object_t::key_type& key) + { + // implicitly convert null value to an empty object + if (is_null()) + { + m_type = value_t::object; + m_value.object = create(); + assert_invariant(); + } + + // operator[] only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + return set_parent(m_value.object->operator[](key)); + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); + } + + /*! + @brief read-only access specified object element + + Returns a const reference to the element at with specified key @a key. No + bounds checking is performed. + + @warning If the element with key @a key does not exist, the behavior is + undefined. + + @param[in] key key of the element to access + + @return const reference to the element at key @a key + + @pre The element with key @a key must exist. **This precondition is + enforced with an assertion.** + + @throw type_error.305 if the JSON value is not an object; in that case, + using the [] operator with a key makes no sense. + + @complexity Logarithmic in the size of the container. + + @liveexample{The example below shows how object elements can be read using + the `[]` operator.,operatorarray__key_type_const} + + @sa see @ref at(const typename object_t::key_type&) for access by reference + with range checking + @sa see @ref value() for access by value with a default value + + @since version 1.0.0 + */ + const_reference operator[](const typename object_t::key_type& key) const + { + // const operator[] only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + JSON_ASSERT(m_value.object->find(key) != m_value.object->end()); + return m_value.object->find(key)->second; + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); + } + + /*! + @brief access specified object element + + Returns a reference to the element at with specified key @a key. + + @note If @a key is not found in the object, then it is silently added to + the object and filled with a `null` value to make `key` a valid reference. + In case the value was `null` before, it is converted to an object. + + @param[in] key key of the element to access + + @return reference to the element at key @a key + + @throw type_error.305 if the JSON value is not an object or null; in that + cases, using the [] operator with a key makes no sense. + + @complexity Logarithmic in the size of the container. + + @liveexample{The example below shows how object elements can be read and + written using the `[]` operator.,operatorarray__key_type} + + @sa see @ref at(const typename object_t::key_type&) for access by reference + with range checking + @sa see @ref value() for access by value with a default value + + @since version 1.1.0 + */ + template + JSON_HEDLEY_NON_NULL(2) + reference operator[](T* key) + { + // implicitly convert null to object + if (is_null()) + { + m_type = value_t::object; + m_value = value_t::object; + assert_invariant(); + } + + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + return set_parent(m_value.object->operator[](key)); + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); + } + + /*! + @brief read-only access specified object element + + Returns a const reference to the element at with specified key @a key. No + bounds checking is performed. + + @warning If the element with key @a key does not exist, the behavior is + undefined. + + @param[in] key key of the element to access + + @return const reference to the element at key @a key + + @pre The element with key @a key must exist. **This precondition is + enforced with an assertion.** + + @throw type_error.305 if the JSON value is not an object; in that case, + using the [] operator with a key makes no sense. + + @complexity Logarithmic in the size of the container. + + @liveexample{The example below shows how object elements can be read using + the `[]` operator.,operatorarray__key_type_const} + + @sa see @ref at(const typename object_t::key_type&) for access by reference + with range checking + @sa see @ref value() for access by value with a default value + + @since version 1.1.0 + */ + template + JSON_HEDLEY_NON_NULL(2) + const_reference operator[](T* key) const + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + JSON_ASSERT(m_value.object->find(key) != m_value.object->end()); + return m_value.object->find(key)->second; + } + + JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name()), *this)); + } + + /*! + @brief access specified object element with default value + + Returns either a copy of an object's element at the specified key @a key + or a given default value if no element with key @a key exists. + + The function is basically equivalent to executing + @code {.cpp} + try { + return at(key); + } catch(out_of_range) { + return default_value; + } + @endcode + + @note Unlike @ref at(const typename object_t::key_type&), this function + does not throw if the given key @a key was not found. + + @note Unlike @ref operator[](const typename object_t::key_type& key), this + function does not implicitly add an element to the position defined by @a + key. This function is furthermore also applicable to const objects. + + @param[in] key key of the element to access + @param[in] default_value the value to return if @a key is not found + + @tparam ValueType type compatible to JSON values, for instance `int` for + JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for + JSON arrays. Note the type of the expected value at @a key and the default + value @a default_value must be compatible. + + @return copy of the element at key @a key or @a default_value if @a key + is not found + + @throw type_error.302 if @a default_value does not match the type of the + value at @a key + @throw type_error.306 if the JSON value is not an object; in that case, + using `value()` with a key makes no sense. + + @complexity Logarithmic in the size of the container. + + @liveexample{The example below shows how object elements can be queried + with a default value.,basic_json__value} + + @sa see @ref at(const typename object_t::key_type&) for access by reference + with range checking + @sa see @ref operator[](const typename object_t::key_type&) for unchecked + access by reference + + @since version 1.0.0 + */ + // using std::is_convertible in a std::enable_if will fail when using explicit conversions + template < class ValueType, typename std::enable_if < + detail::is_getable::value + && !std::is_same::value, int >::type = 0 > + ValueType value(const typename object_t::key_type& key, const ValueType& default_value) const + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + // if key is found, return value and given default value otherwise + const auto it = find(key); + if (it != end()) + { + return it->template get(); + } + + return default_value; + } + + JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name()), *this)); + } + + /*! + @brief overload for a default value of type const char* + @copydoc basic_json::value(const typename object_t::key_type&, const ValueType&) const + */ + string_t value(const typename object_t::key_type& key, const char* default_value) const + { + return value(key, string_t(default_value)); + } + + /*! + @brief access specified object element via JSON Pointer with default value + + Returns either a copy of an object's element at the specified key @a key + or a given default value if no element with key @a key exists. + + The function is basically equivalent to executing + @code {.cpp} + try { + return at(ptr); + } catch(out_of_range) { + return default_value; + } + @endcode + + @note Unlike @ref at(const json_pointer&), this function does not throw + if the given key @a key was not found. + + @param[in] ptr a JSON pointer to the element to access + @param[in] default_value the value to return if @a ptr found no value + + @tparam ValueType type compatible to JSON values, for instance `int` for + JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for + JSON arrays. Note the type of the expected value at @a key and the default + value @a default_value must be compatible. + + @return copy of the element at key @a key or @a default_value if @a key + is not found + + @throw type_error.302 if @a default_value does not match the type of the + value at @a ptr + @throw type_error.306 if the JSON value is not an object; in that case, + using `value()` with a key makes no sense. + + @complexity Logarithmic in the size of the container. + + @liveexample{The example below shows how object elements can be queried + with a default value.,basic_json__value_ptr} + + @sa see @ref operator[](const json_pointer&) for unchecked access by reference + + @since version 2.0.2 + */ + template::value, int>::type = 0> + ValueType value(const json_pointer& ptr, const ValueType& default_value) const + { + // at only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + // if pointer resolves a value, return it or use default value + JSON_TRY + { + return ptr.get_checked(this).template get(); + } + JSON_INTERNAL_CATCH (out_of_range&) + { + return default_value; + } + } + + JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name()), *this)); + } + + /*! + @brief overload for a default value of type const char* + @copydoc basic_json::value(const json_pointer&, ValueType) const + */ + JSON_HEDLEY_NON_NULL(3) + string_t value(const json_pointer& ptr, const char* default_value) const + { + return value(ptr, string_t(default_value)); + } + + /*! + @brief access the first element + + Returns a reference to the first element in the container. For a JSON + container `c`, the expression `c.front()` is equivalent to `*c.begin()`. + + @return In case of a structured type (array or object), a reference to the + first element is returned. In case of number, string, boolean, or binary + values, a reference to the value is returned. + + @complexity Constant. + + @pre The JSON value must not be `null` (would throw `std::out_of_range`) + or an empty array or object (undefined behavior, **guarded by + assertions**). + @post The JSON value remains unchanged. + + @throw invalid_iterator.214 when called on `null` value + + @liveexample{The following code shows an example for `front()`.,front} + + @sa see @ref back() -- access the last element + + @since version 1.0.0 + */ + reference front() + { + return *begin(); + } + + /*! + @copydoc basic_json::front() + */ + const_reference front() const + { + return *cbegin(); + } + + /*! + @brief access the last element + + Returns a reference to the last element in the container. For a JSON + container `c`, the expression `c.back()` is equivalent to + @code {.cpp} + auto tmp = c.end(); + --tmp; + return *tmp; + @endcode + + @return In case of a structured type (array or object), a reference to the + last element is returned. In case of number, string, boolean, or binary + values, a reference to the value is returned. + + @complexity Constant. + + @pre The JSON value must not be `null` (would throw `std::out_of_range`) + or an empty array or object (undefined behavior, **guarded by + assertions**). + @post The JSON value remains unchanged. + + @throw invalid_iterator.214 when called on a `null` value. See example + below. + + @liveexample{The following code shows an example for `back()`.,back} + + @sa see @ref front() -- access the first element + + @since version 1.0.0 + */ + reference back() + { + auto tmp = end(); + --tmp; + return *tmp; + } + + /*! + @copydoc basic_json::back() + */ + const_reference back() const + { + auto tmp = cend(); + --tmp; + return *tmp; + } + + /*! + @brief remove element given an iterator + + Removes the element specified by iterator @a pos. The iterator @a pos must + be valid and dereferenceable. Thus the `end()` iterator (which is valid, + but is not dereferenceable) cannot be used as a value for @a pos. + + If called on a primitive type other than `null`, the resulting JSON value + will be `null`. + + @param[in] pos iterator to the element to remove + @return Iterator following the last removed element. If the iterator @a + pos refers to the last element, the `end()` iterator is returned. + + @tparam IteratorType an @ref iterator or @ref const_iterator + + @post Invalidates iterators and references at or after the point of the + erase, including the `end()` iterator. + + @throw type_error.307 if called on a `null` value; example: `"cannot use + erase() with null"` + @throw invalid_iterator.202 if called on an iterator which does not belong + to the current JSON value; example: `"iterator does not fit current + value"` + @throw invalid_iterator.205 if called on a primitive type with invalid + iterator (i.e., any iterator which is not `begin()`); example: `"iterator + out of range"` + + @complexity The complexity depends on the type: + - objects: amortized constant + - arrays: linear in distance between @a pos and the end of the container + - strings and binary: linear in the length of the member + - other types: constant + + @liveexample{The example shows the result of `erase()` for different JSON + types.,erase__IteratorType} + + @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in + the given range + @sa see @ref erase(const typename object_t::key_type&) -- removes the element + from an object at the given key + @sa see @ref erase(const size_type) -- removes the element from an array at + the given index + + @since version 1.0.0 + */ + template < class IteratorType, typename std::enable_if < + std::is_same::value || + std::is_same::value, int >::type + = 0 > + IteratorType erase(IteratorType pos) + { + // make sure iterator fits the current value + if (JSON_HEDLEY_UNLIKELY(this != pos.m_object)) + { + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); + } + + IteratorType result = end(); + + switch (m_type) + { + case value_t::boolean: + case value_t::number_float: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::string: + case value_t::binary: + { + if (JSON_HEDLEY_UNLIKELY(!pos.m_it.primitive_iterator.is_begin())) + { + JSON_THROW(invalid_iterator::create(205, "iterator out of range", *this)); + } + + if (is_string()) + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, m_value.string); + std::allocator_traits::deallocate(alloc, m_value.string, 1); + m_value.string = nullptr; + } + else if (is_binary()) + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, m_value.binary); + std::allocator_traits::deallocate(alloc, m_value.binary, 1); + m_value.binary = nullptr; + } + + m_type = value_t::null; + assert_invariant(); + break; + } + + case value_t::object: + { + result.m_it.object_iterator = m_value.object->erase(pos.m_it.object_iterator); + break; + } + + case value_t::array: + { + result.m_it.array_iterator = m_value.array->erase(pos.m_it.array_iterator); + break; + } + + case value_t::null: + case value_t::discarded: + default: + JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); + } + + return result; + } + + /*! + @brief remove elements given an iterator range + + Removes the element specified by the range `[first; last)`. The iterator + @a first does not need to be dereferenceable if `first == last`: erasing + an empty range is a no-op. + + If called on a primitive type other than `null`, the resulting JSON value + will be `null`. + + @param[in] first iterator to the beginning of the range to remove + @param[in] last iterator past the end of the range to remove + @return Iterator following the last removed element. If the iterator @a + second refers to the last element, the `end()` iterator is returned. + + @tparam IteratorType an @ref iterator or @ref const_iterator + + @post Invalidates iterators and references at or after the point of the + erase, including the `end()` iterator. + + @throw type_error.307 if called on a `null` value; example: `"cannot use + erase() with null"` + @throw invalid_iterator.203 if called on iterators which does not belong + to the current JSON value; example: `"iterators do not fit current value"` + @throw invalid_iterator.204 if called on a primitive type with invalid + iterators (i.e., if `first != begin()` and `last != end()`); example: + `"iterators out of range"` + + @complexity The complexity depends on the type: + - objects: `log(size()) + std::distance(first, last)` + - arrays: linear in the distance between @a first and @a last, plus linear + in the distance between @a last and end of the container + - strings and binary: linear in the length of the member + - other types: constant + + @liveexample{The example shows the result of `erase()` for different JSON + types.,erase__IteratorType_IteratorType} + + @sa see @ref erase(IteratorType) -- removes the element at a given position + @sa see @ref erase(const typename object_t::key_type&) -- removes the element + from an object at the given key + @sa see @ref erase(const size_type) -- removes the element from an array at + the given index + + @since version 1.0.0 + */ + template < class IteratorType, typename std::enable_if < + std::is_same::value || + std::is_same::value, int >::type + = 0 > + IteratorType erase(IteratorType first, IteratorType last) + { + // make sure iterator fits the current value + if (JSON_HEDLEY_UNLIKELY(this != first.m_object || this != last.m_object)) + { + JSON_THROW(invalid_iterator::create(203, "iterators do not fit current value", *this)); + } + + IteratorType result = end(); + + switch (m_type) + { + case value_t::boolean: + case value_t::number_float: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::string: + case value_t::binary: + { + if (JSON_HEDLEY_LIKELY(!first.m_it.primitive_iterator.is_begin() + || !last.m_it.primitive_iterator.is_end())) + { + JSON_THROW(invalid_iterator::create(204, "iterators out of range", *this)); + } + + if (is_string()) + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, m_value.string); + std::allocator_traits::deallocate(alloc, m_value.string, 1); + m_value.string = nullptr; + } + else if (is_binary()) + { + AllocatorType alloc; + std::allocator_traits::destroy(alloc, m_value.binary); + std::allocator_traits::deallocate(alloc, m_value.binary, 1); + m_value.binary = nullptr; + } + + m_type = value_t::null; + assert_invariant(); + break; + } + + case value_t::object: + { + result.m_it.object_iterator = m_value.object->erase(first.m_it.object_iterator, + last.m_it.object_iterator); + break; + } + + case value_t::array: + { + result.m_it.array_iterator = m_value.array->erase(first.m_it.array_iterator, + last.m_it.array_iterator); + break; + } + + case value_t::null: + case value_t::discarded: + default: + JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); + } + + return result; + } + + /*! + @brief remove element from a JSON object given a key + + Removes elements from a JSON object with the key value @a key. + + @param[in] key value of the elements to remove + + @return Number of elements removed. If @a ObjectType is the default + `std::map` type, the return value will always be `0` (@a key was not + found) or `1` (@a key was found). + + @post References and iterators to the erased elements are invalidated. + Other references and iterators are not affected. + + @throw type_error.307 when called on a type other than JSON object; + example: `"cannot use erase() with null"` + + @complexity `log(size()) + count(key)` + + @liveexample{The example shows the effect of `erase()`.,erase__key_type} + + @sa see @ref erase(IteratorType) -- removes the element at a given position + @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in + the given range + @sa see @ref erase(const size_type) -- removes the element from an array at + the given index + + @since version 1.0.0 + */ + size_type erase(const typename object_t::key_type& key) + { + // this erase only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + return m_value.object->erase(key); + } + + JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); + } + + /*! + @brief remove element from a JSON array given an index + + Removes element from a JSON array at the index @a idx. + + @param[in] idx index of the element to remove + + @throw type_error.307 when called on a type other than JSON object; + example: `"cannot use erase() with null"` + @throw out_of_range.401 when `idx >= size()`; example: `"array index 17 + is out of range"` + + @complexity Linear in distance between @a idx and the end of the container. + + @liveexample{The example shows the effect of `erase()`.,erase__size_type} + + @sa see @ref erase(IteratorType) -- removes the element at a given position + @sa see @ref erase(IteratorType, IteratorType) -- removes the elements in + the given range + @sa see @ref erase(const typename object_t::key_type&) -- removes the element + from an object at the given key + + @since version 1.0.0 + */ + void erase(const size_type idx) + { + // this erase only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + if (JSON_HEDLEY_UNLIKELY(idx >= size())) + { + JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", *this)); + } + + m_value.array->erase(m_value.array->begin() + static_cast(idx)); + } + else + { + JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name()), *this)); + } + } + + /// @} + + + //////////// + // lookup // + //////////// + + /// @name lookup + /// @{ + + /*! + @brief find an element in a JSON object + + Finds an element in a JSON object with key equivalent to @a key. If the + element is not found or the JSON value is not an object, end() is + returned. + + @note This method always returns @ref end() when executed on a JSON type + that is not an object. + + @param[in] key key value of the element to search for. + + @return Iterator to an element with key equivalent to @a key. If no such + element is found or the JSON value is not an object, past-the-end (see + @ref end()) iterator is returned. + + @complexity Logarithmic in the size of the JSON object. + + @liveexample{The example shows how `find()` is used.,find__key_type} + + @sa see @ref contains(KeyT&&) const -- checks whether a key exists + + @since version 1.0.0 + */ + template + iterator find(KeyT&& key) + { + auto result = end(); + + if (is_object()) + { + result.m_it.object_iterator = m_value.object->find(std::forward(key)); + } + + return result; + } + + /*! + @brief find an element in a JSON object + @copydoc find(KeyT&&) + */ + template + const_iterator find(KeyT&& key) const + { + auto result = cend(); + + if (is_object()) + { + result.m_it.object_iterator = m_value.object->find(std::forward(key)); + } + + return result; + } + + /*! + @brief returns the number of occurrences of a key in a JSON object + + Returns the number of elements with key @a key. If ObjectType is the + default `std::map` type, the return value will always be `0` (@a key was + not found) or `1` (@a key was found). + + @note This method always returns `0` when executed on a JSON type that is + not an object. + + @param[in] key key value of the element to count + + @return Number of elements with key @a key. If the JSON value is not an + object, the return value will be `0`. + + @complexity Logarithmic in the size of the JSON object. + + @liveexample{The example shows how `count()` is used.,count} + + @since version 1.0.0 + */ + template + size_type count(KeyT&& key) const + { + // return 0 for all nonobject types + return is_object() ? m_value.object->count(std::forward(key)) : 0; + } + + /*! + @brief check the existence of an element in a JSON object + + Check whether an element exists in a JSON object with key equivalent to + @a key. If the element is not found or the JSON value is not an object, + false is returned. + + @note This method always returns false when executed on a JSON type + that is not an object. + + @param[in] key key value to check its existence. + + @return true if an element with specified @a key exists. If no such + element with such key is found or the JSON value is not an object, + false is returned. + + @complexity Logarithmic in the size of the JSON object. + + @liveexample{The following code shows an example for `contains()`.,contains} + + @sa see @ref find(KeyT&&) -- returns an iterator to an object element + @sa see @ref contains(const json_pointer&) const -- checks the existence for a JSON pointer + + @since version 3.6.0 + */ + template < typename KeyT, typename std::enable_if < + !std::is_same::type, json_pointer>::value, int >::type = 0 > + bool contains(KeyT && key) const + { + return is_object() && m_value.object->find(std::forward(key)) != m_value.object->end(); + } + + /*! + @brief check the existence of an element in a JSON object given a JSON pointer + + Check whether the given JSON pointer @a ptr can be resolved in the current + JSON value. + + @note This method can be executed on any JSON value type. + + @param[in] ptr JSON pointer to check its existence. + + @return true if the JSON pointer can be resolved to a stored value, false + otherwise. + + @post If `j.contains(ptr)` returns true, it is safe to call `j[ptr]`. + + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + + @complexity Logarithmic in the size of the JSON object. + + @liveexample{The following code shows an example for `contains()`.,contains_json_pointer} + + @sa see @ref contains(KeyT &&) const -- checks the existence of a key + + @since version 3.7.0 + */ + bool contains(const json_pointer& ptr) const + { + return ptr.contains(this); + } + + /// @} + + + /////////////// + // iterators // + /////////////// + + /// @name iterators + /// @{ + + /*! + @brief returns an iterator to the first element + + Returns an iterator to the first element. + + @image html range-begin-end.svg "Illustration from cppreference.com" + + @return iterator to the first element + + @complexity Constant. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is constant. + + @liveexample{The following code shows an example for `begin()`.,begin} + + @sa see @ref cbegin() -- returns a const iterator to the beginning + @sa see @ref end() -- returns an iterator to the end + @sa see @ref cend() -- returns a const iterator to the end + + @since version 1.0.0 + */ + iterator begin() noexcept + { + iterator result(this); + result.set_begin(); + return result; + } + + /*! + @copydoc basic_json::cbegin() + */ + const_iterator begin() const noexcept + { + return cbegin(); + } + + /*! + @brief returns a const iterator to the first element + + Returns a const iterator to the first element. + + @image html range-begin-end.svg "Illustration from cppreference.com" + + @return const iterator to the first element + + @complexity Constant. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is constant. + - Has the semantics of `const_cast(*this).begin()`. + + @liveexample{The following code shows an example for `cbegin()`.,cbegin} + + @sa see @ref begin() -- returns an iterator to the beginning + @sa see @ref end() -- returns an iterator to the end + @sa see @ref cend() -- returns a const iterator to the end + + @since version 1.0.0 + */ + const_iterator cbegin() const noexcept + { + const_iterator result(this); + result.set_begin(); + return result; + } + + /*! + @brief returns an iterator to one past the last element + + Returns an iterator to one past the last element. + + @image html range-begin-end.svg "Illustration from cppreference.com" + + @return iterator one past the last element + + @complexity Constant. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is constant. + + @liveexample{The following code shows an example for `end()`.,end} + + @sa see @ref cend() -- returns a const iterator to the end + @sa see @ref begin() -- returns an iterator to the beginning + @sa see @ref cbegin() -- returns a const iterator to the beginning + + @since version 1.0.0 + */ + iterator end() noexcept + { + iterator result(this); + result.set_end(); + return result; + } + + /*! + @copydoc basic_json::cend() + */ + const_iterator end() const noexcept + { + return cend(); + } + + /*! + @brief returns a const iterator to one past the last element + + Returns a const iterator to one past the last element. + + @image html range-begin-end.svg "Illustration from cppreference.com" + + @return const iterator one past the last element + + @complexity Constant. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is constant. + - Has the semantics of `const_cast(*this).end()`. + + @liveexample{The following code shows an example for `cend()`.,cend} + + @sa see @ref end() -- returns an iterator to the end + @sa see @ref begin() -- returns an iterator to the beginning + @sa see @ref cbegin() -- returns a const iterator to the beginning + + @since version 1.0.0 + */ + const_iterator cend() const noexcept + { + const_iterator result(this); + result.set_end(); + return result; + } + + /*! + @brief returns an iterator to the reverse-beginning + + Returns an iterator to the reverse-beginning; that is, the last element. + + @image html range-rbegin-rend.svg "Illustration from cppreference.com" + + @complexity Constant. + + @requirement This function helps `basic_json` satisfying the + [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) + requirements: + - The complexity is constant. + - Has the semantics of `reverse_iterator(end())`. + + @liveexample{The following code shows an example for `rbegin()`.,rbegin} + + @sa see @ref crbegin() -- returns a const reverse iterator to the beginning + @sa see @ref rend() -- returns a reverse iterator to the end + @sa see @ref crend() -- returns a const reverse iterator to the end + + @since version 1.0.0 + */ + reverse_iterator rbegin() noexcept + { + return reverse_iterator(end()); + } + + /*! + @copydoc basic_json::crbegin() + */ + const_reverse_iterator rbegin() const noexcept + { + return crbegin(); + } + + /*! + @brief returns an iterator to the reverse-end + + Returns an iterator to the reverse-end; that is, one before the first + element. + + @image html range-rbegin-rend.svg "Illustration from cppreference.com" + + @complexity Constant. + + @requirement This function helps `basic_json` satisfying the + [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) + requirements: + - The complexity is constant. + - Has the semantics of `reverse_iterator(begin())`. + + @liveexample{The following code shows an example for `rend()`.,rend} + + @sa see @ref crend() -- returns a const reverse iterator to the end + @sa see @ref rbegin() -- returns a reverse iterator to the beginning + @sa see @ref crbegin() -- returns a const reverse iterator to the beginning + + @since version 1.0.0 + */ + reverse_iterator rend() noexcept + { + return reverse_iterator(begin()); + } + + /*! + @copydoc basic_json::crend() + */ + const_reverse_iterator rend() const noexcept + { + return crend(); + } + + /*! + @brief returns a const reverse iterator to the last element + + Returns a const iterator to the reverse-beginning; that is, the last + element. + + @image html range-rbegin-rend.svg "Illustration from cppreference.com" + + @complexity Constant. + + @requirement This function helps `basic_json` satisfying the + [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) + requirements: + - The complexity is constant. + - Has the semantics of `const_cast(*this).rbegin()`. + + @liveexample{The following code shows an example for `crbegin()`.,crbegin} + + @sa see @ref rbegin() -- returns a reverse iterator to the beginning + @sa see @ref rend() -- returns a reverse iterator to the end + @sa see @ref crend() -- returns a const reverse iterator to the end + + @since version 1.0.0 + */ + const_reverse_iterator crbegin() const noexcept + { + return const_reverse_iterator(cend()); + } + + /*! + @brief returns a const reverse iterator to one before the first + + Returns a const reverse iterator to the reverse-end; that is, one before + the first element. + + @image html range-rbegin-rend.svg "Illustration from cppreference.com" + + @complexity Constant. + + @requirement This function helps `basic_json` satisfying the + [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer) + requirements: + - The complexity is constant. + - Has the semantics of `const_cast(*this).rend()`. + + @liveexample{The following code shows an example for `crend()`.,crend} + + @sa see @ref rend() -- returns a reverse iterator to the end + @sa see @ref rbegin() -- returns a reverse iterator to the beginning + @sa see @ref crbegin() -- returns a const reverse iterator to the beginning + + @since version 1.0.0 + */ + const_reverse_iterator crend() const noexcept + { + return const_reverse_iterator(cbegin()); + } + + public: + /*! + @brief wrapper to access iterator member functions in range-based for + + This function allows to access @ref iterator::key() and @ref + iterator::value() during range-based for loops. In these loops, a + reference to the JSON values is returned, so there is no access to the + underlying iterator. + + For loop without iterator_wrapper: + + @code{cpp} + for (auto it = j_object.begin(); it != j_object.end(); ++it) + { + std::cout << "key: " << it.key() << ", value:" << it.value() << '\n'; + } + @endcode + + Range-based for loop without iterator proxy: + + @code{cpp} + for (auto it : j_object) + { + // "it" is of type json::reference and has no key() member + std::cout << "value: " << it << '\n'; + } + @endcode + + Range-based for loop with iterator proxy: + + @code{cpp} + for (auto it : json::iterator_wrapper(j_object)) + { + std::cout << "key: " << it.key() << ", value:" << it.value() << '\n'; + } + @endcode + + @note When iterating over an array, `key()` will return the index of the + element as string (see example). + + @param[in] ref reference to a JSON value + @return iteration proxy object wrapping @a ref with an interface to use in + range-based for loops + + @liveexample{The following code shows how the wrapper is used,iterator_wrapper} + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Constant. + + @note The name of this function is not yet final and may change in the + future. + + @deprecated This stream operator is deprecated and will be removed in + future 4.0.0 of the library. Please use @ref items() instead; + that is, replace `json::iterator_wrapper(j)` with `j.items()`. + */ + JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items()) + static iteration_proxy iterator_wrapper(reference ref) noexcept + { + return ref.items(); + } + + /*! + @copydoc iterator_wrapper(reference) + */ + JSON_HEDLEY_DEPRECATED_FOR(3.1.0, items()) + static iteration_proxy iterator_wrapper(const_reference ref) noexcept + { + return ref.items(); + } + + /*! + @brief helper to access iterator member functions in range-based for + + This function allows to access @ref iterator::key() and @ref + iterator::value() during range-based for loops. In these loops, a + reference to the JSON values is returned, so there is no access to the + underlying iterator. + + For loop without `items()` function: + + @code{cpp} + for (auto it = j_object.begin(); it != j_object.end(); ++it) + { + std::cout << "key: " << it.key() << ", value:" << it.value() << '\n'; + } + @endcode + + Range-based for loop without `items()` function: + + @code{cpp} + for (auto it : j_object) + { + // "it" is of type json::reference and has no key() member + std::cout << "value: " << it << '\n'; + } + @endcode + + Range-based for loop with `items()` function: + + @code{cpp} + for (auto& el : j_object.items()) + { + std::cout << "key: " << el.key() << ", value:" << el.value() << '\n'; + } + @endcode + + The `items()` function also allows to use + [structured bindings](https://en.cppreference.com/w/cpp/language/structured_binding) + (C++17): + + @code{cpp} + for (auto& [key, val] : j_object.items()) + { + std::cout << "key: " << key << ", value:" << val << '\n'; + } + @endcode + + @note When iterating over an array, `key()` will return the index of the + element as string (see example). For primitive types (e.g., numbers), + `key()` returns an empty string. + + @warning Using `items()` on temporary objects is dangerous. Make sure the + object's lifetime exeeds the iteration. See + for more + information. + + @return iteration proxy object wrapping @a ref with an interface to use in + range-based for loops + + @liveexample{The following code shows how the function is used.,items} + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Constant. + + @since version 3.1.0, structured bindings support since 3.5.0. + */ + iteration_proxy items() noexcept + { + return iteration_proxy(*this); + } + + /*! + @copydoc items() + */ + iteration_proxy items() const noexcept + { + return iteration_proxy(*this); + } + + /// @} + + + ////////////// + // capacity // + ////////////// + + /// @name capacity + /// @{ + + /*! + @brief checks whether the container is empty. + + Checks if a JSON value has no elements (i.e. whether its @ref size is `0`). + + @return The return value depends on the different types and is + defined as follows: + Value type | return value + ----------- | ------------- + null | `true` + boolean | `false` + string | `false` + number | `false` + binary | `false` + object | result of function `object_t::empty()` + array | result of function `array_t::empty()` + + @liveexample{The following code uses `empty()` to check if a JSON + object contains any elements.,empty} + + @complexity Constant, as long as @ref array_t and @ref object_t satisfy + the Container concept; that is, their `empty()` functions have constant + complexity. + + @iterators No changes. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @note This function does not return whether a string stored as JSON value + is empty - it returns whether the JSON container itself is empty which is + false in the case of a string. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is constant. + - Has the semantics of `begin() == end()`. + + @sa see @ref size() -- returns the number of elements + + @since version 1.0.0 + */ + bool empty() const noexcept + { + switch (m_type) + { + case value_t::null: + { + // null values are empty + return true; + } + + case value_t::array: + { + // delegate call to array_t::empty() + return m_value.array->empty(); + } + + case value_t::object: + { + // delegate call to object_t::empty() + return m_value.object->empty(); + } + + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + // all other types are nonempty + return false; + } + } + } + + /*! + @brief returns the number of elements + + Returns the number of elements in a JSON value. + + @return The return value depends on the different types and is + defined as follows: + Value type | return value + ----------- | ------------- + null | `0` + boolean | `1` + string | `1` + number | `1` + binary | `1` + object | result of function object_t::size() + array | result of function array_t::size() + + @liveexample{The following code calls `size()` on the different value + types.,size} + + @complexity Constant, as long as @ref array_t and @ref object_t satisfy + the Container concept; that is, their size() functions have constant + complexity. + + @iterators No changes. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @note This function does not return the length of a string stored as JSON + value - it returns the number of elements in the JSON value which is 1 in + the case of a string. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is constant. + - Has the semantics of `std::distance(begin(), end())`. + + @sa see @ref empty() -- checks whether the container is empty + @sa see @ref max_size() -- returns the maximal number of elements + + @since version 1.0.0 + */ + size_type size() const noexcept + { + switch (m_type) + { + case value_t::null: + { + // null values are empty + return 0; + } + + case value_t::array: + { + // delegate call to array_t::size() + return m_value.array->size(); + } + + case value_t::object: + { + // delegate call to object_t::size() + return m_value.object->size(); + } + + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + // all other types have size 1 + return 1; + } + } + } + + /*! + @brief returns the maximum possible number of elements + + Returns the maximum number of elements a JSON value is able to hold due to + system or library implementation limitations, i.e. `std::distance(begin(), + end())` for the JSON value. + + @return The return value depends on the different types and is + defined as follows: + Value type | return value + ----------- | ------------- + null | `0` (same as `size()`) + boolean | `1` (same as `size()`) + string | `1` (same as `size()`) + number | `1` (same as `size()`) + binary | `1` (same as `size()`) + object | result of function `object_t::max_size()` + array | result of function `array_t::max_size()` + + @liveexample{The following code calls `max_size()` on the different value + types. Note the output is implementation specific.,max_size} + + @complexity Constant, as long as @ref array_t and @ref object_t satisfy + the Container concept; that is, their `max_size()` functions have constant + complexity. + + @iterators No changes. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @requirement This function helps `basic_json` satisfying the + [Container](https://en.cppreference.com/w/cpp/named_req/Container) + requirements: + - The complexity is constant. + - Has the semantics of returning `b.size()` where `b` is the largest + possible JSON value. + + @sa see @ref size() -- returns the number of elements + + @since version 1.0.0 + */ + size_type max_size() const noexcept + { + switch (m_type) + { + case value_t::array: + { + // delegate call to array_t::max_size() + return m_value.array->max_size(); + } + + case value_t::object: + { + // delegate call to object_t::max_size() + return m_value.object->max_size(); + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + // all other types have max_size() == size() + return size(); + } + } + } + + /// @} + + + /////////////// + // modifiers // + /////////////// + + /// @name modifiers + /// @{ + + /*! + @brief clears the contents + + Clears the content of a JSON value and resets it to the default value as + if @ref basic_json(value_t) would have been called with the current value + type from @ref type(): + + Value type | initial value + ----------- | ------------- + null | `null` + boolean | `false` + string | `""` + number | `0` + binary | An empty byte vector + object | `{}` + array | `[]` + + @post Has the same effect as calling + @code {.cpp} + *this = basic_json(type()); + @endcode + + @liveexample{The example below shows the effect of `clear()` to different + JSON types.,clear} + + @complexity Linear in the size of the JSON value. + + @iterators All iterators, pointers and references related to this container + are invalidated. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @sa see @ref basic_json(value_t) -- constructor that creates an object with the + same value than calling `clear()` + + @since version 1.0.0 + */ + void clear() noexcept + { + switch (m_type) + { + case value_t::number_integer: + { + m_value.number_integer = 0; + break; + } + + case value_t::number_unsigned: + { + m_value.number_unsigned = 0; + break; + } + + case value_t::number_float: + { + m_value.number_float = 0.0; + break; + } + + case value_t::boolean: + { + m_value.boolean = false; + break; + } + + case value_t::string: + { + m_value.string->clear(); + break; + } + + case value_t::binary: + { + m_value.binary->clear(); + break; + } + + case value_t::array: + { + m_value.array->clear(); + break; + } + + case value_t::object: + { + m_value.object->clear(); + break; + } + + case value_t::null: + case value_t::discarded: + default: + break; + } + } + + /*! + @brief add an object to an array + + Appends the given element @a val to the end of the JSON value. If the + function is called on a JSON null value, an empty array is created before + appending @a val. + + @param[in] val the value to add to the JSON array + + @throw type_error.308 when called on a type other than JSON array or + null; example: `"cannot use push_back() with number"` + + @complexity Amortized constant. + + @liveexample{The example shows how `push_back()` and `+=` can be used to + add elements to a JSON array. Note how the `null` value was silently + converted to a JSON array.,push_back} + + @since version 1.0.0 + */ + void push_back(basic_json&& val) + { + // push_back only works for null objects or arrays + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) + { + JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); + } + + // transform null object into an array + if (is_null()) + { + m_type = value_t::array; + m_value = value_t::array; + assert_invariant(); + } + + // add element to array (move semantics) + const auto old_capacity = m_value.array->capacity(); + m_value.array->push_back(std::move(val)); + set_parent(m_value.array->back(), old_capacity); + // if val is moved from, basic_json move constructor marks it null so we do not call the destructor + } + + /*! + @brief add an object to an array + @copydoc push_back(basic_json&&) + */ + reference operator+=(basic_json&& val) + { + push_back(std::move(val)); + return *this; + } + + /*! + @brief add an object to an array + @copydoc push_back(basic_json&&) + */ + void push_back(const basic_json& val) + { + // push_back only works for null objects or arrays + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) + { + JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); + } + + // transform null object into an array + if (is_null()) + { + m_type = value_t::array; + m_value = value_t::array; + assert_invariant(); + } + + // add element to array + const auto old_capacity = m_value.array->capacity(); + m_value.array->push_back(val); + set_parent(m_value.array->back(), old_capacity); + } + + /*! + @brief add an object to an array + @copydoc push_back(basic_json&&) + */ + reference operator+=(const basic_json& val) + { + push_back(val); + return *this; + } + + /*! + @brief add an object to an object + + Inserts the given element @a val to the JSON object. If the function is + called on a JSON null value, an empty object is created before inserting + @a val. + + @param[in] val the value to add to the JSON object + + @throw type_error.308 when called on a type other than JSON object or + null; example: `"cannot use push_back() with number"` + + @complexity Logarithmic in the size of the container, O(log(`size()`)). + + @liveexample{The example shows how `push_back()` and `+=` can be used to + add elements to a JSON object. Note how the `null` value was silently + converted to a JSON object.,push_back__object_t__value} + + @since version 1.0.0 + */ + void push_back(const typename object_t::value_type& val) + { + // push_back only works for null objects or objects + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_object()))) + { + JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name()), *this)); + } + + // transform null object into an object + if (is_null()) + { + m_type = value_t::object; + m_value = value_t::object; + assert_invariant(); + } + + // add element to object + auto res = m_value.object->insert(val); + set_parent(res.first->second); + } + + /*! + @brief add an object to an object + @copydoc push_back(const typename object_t::value_type&) + */ + reference operator+=(const typename object_t::value_type& val) + { + push_back(val); + return *this; + } + + /*! + @brief add an object to an object + + This function allows to use `push_back` with an initializer list. In case + + 1. the current value is an object, + 2. the initializer list @a init contains only two elements, and + 3. the first element of @a init is a string, + + @a init is converted into an object element and added using + @ref push_back(const typename object_t::value_type&). Otherwise, @a init + is converted to a JSON value and added using @ref push_back(basic_json&&). + + @param[in] init an initializer list + + @complexity Linear in the size of the initializer list @a init. + + @note This function is required to resolve an ambiguous overload error, + because pairs like `{"key", "value"}` can be both interpreted as + `object_t::value_type` or `std::initializer_list`, see + https://github.com/nlohmann/json/issues/235 for more information. + + @liveexample{The example shows how initializer lists are treated as + objects when possible.,push_back__initializer_list} + */ + void push_back(initializer_list_t init) + { + if (is_object() && init.size() == 2 && (*init.begin())->is_string()) + { + basic_json&& key = init.begin()->moved_or_copied(); + push_back(typename object_t::value_type( + std::move(key.get_ref()), (init.begin() + 1)->moved_or_copied())); + } + else + { + push_back(basic_json(init)); + } + } + + /*! + @brief add an object to an object + @copydoc push_back(initializer_list_t) + */ + reference operator+=(initializer_list_t init) + { + push_back(init); + return *this; + } + + /*! + @brief add an object to an array + + Creates a JSON value from the passed parameters @a args to the end of the + JSON value. If the function is called on a JSON null value, an empty array + is created before appending the value created from @a args. + + @param[in] args arguments to forward to a constructor of @ref basic_json + @tparam Args compatible types to create a @ref basic_json object + + @return reference to the inserted element + + @throw type_error.311 when called on a type other than JSON array or + null; example: `"cannot use emplace_back() with number"` + + @complexity Amortized constant. + + @liveexample{The example shows how `push_back()` can be used to add + elements to a JSON array. Note how the `null` value was silently converted + to a JSON array.,emplace_back} + + @since version 2.0.8, returns reference since 3.7.0 + */ + template + reference emplace_back(Args&& ... args) + { + // emplace_back only works for null objects or arrays + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_array()))) + { + JSON_THROW(type_error::create(311, "cannot use emplace_back() with " + std::string(type_name()), *this)); + } + + // transform null object into an array + if (is_null()) + { + m_type = value_t::array; + m_value = value_t::array; + assert_invariant(); + } + + // add element to array (perfect forwarding) + const auto old_capacity = m_value.array->capacity(); + m_value.array->emplace_back(std::forward(args)...); + return set_parent(m_value.array->back(), old_capacity); + } + + /*! + @brief add an object to an object if key does not exist + + Inserts a new element into a JSON object constructed in-place with the + given @a args if there is no element with the key in the container. If the + function is called on a JSON null value, an empty object is created before + appending the value created from @a args. + + @param[in] args arguments to forward to a constructor of @ref basic_json + @tparam Args compatible types to create a @ref basic_json object + + @return a pair consisting of an iterator to the inserted element, or the + already-existing element if no insertion happened, and a bool + denoting whether the insertion took place. + + @throw type_error.311 when called on a type other than JSON object or + null; example: `"cannot use emplace() with number"` + + @complexity Logarithmic in the size of the container, O(log(`size()`)). + + @liveexample{The example shows how `emplace()` can be used to add elements + to a JSON object. Note how the `null` value was silently converted to a + JSON object. Further note how no value is added if there was already one + value stored with the same key.,emplace} + + @since version 2.0.8 + */ + template + std::pair emplace(Args&& ... args) + { + // emplace only works for null objects or arrays + if (JSON_HEDLEY_UNLIKELY(!(is_null() || is_object()))) + { + JSON_THROW(type_error::create(311, "cannot use emplace() with " + std::string(type_name()), *this)); + } + + // transform null object into an object + if (is_null()) + { + m_type = value_t::object; + m_value = value_t::object; + assert_invariant(); + } + + // add element to array (perfect forwarding) + auto res = m_value.object->emplace(std::forward(args)...); + set_parent(res.first->second); + + // create result iterator and set iterator to the result of emplace + auto it = begin(); + it.m_it.object_iterator = res.first; + + // return pair of iterator and boolean + return {it, res.second}; + } + + /// Helper for insertion of an iterator + /// @note: This uses std::distance to support GCC 4.8, + /// see https://github.com/nlohmann/json/pull/1257 + template + iterator insert_iterator(const_iterator pos, Args&& ... args) + { + iterator result(this); + JSON_ASSERT(m_value.array != nullptr); + + auto insert_pos = std::distance(m_value.array->begin(), pos.m_it.array_iterator); + m_value.array->insert(pos.m_it.array_iterator, std::forward(args)...); + result.m_it.array_iterator = m_value.array->begin() + insert_pos; + + // This could have been written as: + // result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val); + // but the return value of insert is missing in GCC 4.8, so it is written this way instead. + + set_parents(); + return result; + } + + /*! + @brief inserts element + + Inserts element @a val before iterator @a pos. + + @param[in] pos iterator before which the content will be inserted; may be + the end() iterator + @param[in] val element to insert + @return iterator pointing to the inserted @a val. + + @throw type_error.309 if called on JSON values other than arrays; + example: `"cannot use insert() with string"` + @throw invalid_iterator.202 if @a pos is not an iterator of *this; + example: `"iterator does not fit current value"` + + @complexity Constant plus linear in the distance between @a pos and end of + the container. + + @liveexample{The example shows how `insert()` is used.,insert} + + @since version 1.0.0 + */ + iterator insert(const_iterator pos, const basic_json& val) + { + // insert only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + // check if iterator pos fits to this JSON value + if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) + { + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); + } + + // insert to array and return iterator + return insert_iterator(pos, val); + } + + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } + + /*! + @brief inserts element + @copydoc insert(const_iterator, const basic_json&) + */ + iterator insert(const_iterator pos, basic_json&& val) + { + return insert(pos, val); + } + + /*! + @brief inserts elements + + Inserts @a cnt copies of @a val before iterator @a pos. + + @param[in] pos iterator before which the content will be inserted; may be + the end() iterator + @param[in] cnt number of copies of @a val to insert + @param[in] val element to insert + @return iterator pointing to the first element inserted, or @a pos if + `cnt==0` + + @throw type_error.309 if called on JSON values other than arrays; example: + `"cannot use insert() with string"` + @throw invalid_iterator.202 if @a pos is not an iterator of *this; + example: `"iterator does not fit current value"` + + @complexity Linear in @a cnt plus linear in the distance between @a pos + and end of the container. + + @liveexample{The example shows how `insert()` is used.,insert__count} + + @since version 1.0.0 + */ + iterator insert(const_iterator pos, size_type cnt, const basic_json& val) + { + // insert only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + // check if iterator pos fits to this JSON value + if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) + { + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); + } + + // insert to array and return iterator + return insert_iterator(pos, cnt, val); + } + + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } + + /*! + @brief inserts elements + + Inserts elements from range `[first, last)` before iterator @a pos. + + @param[in] pos iterator before which the content will be inserted; may be + the end() iterator + @param[in] first begin of the range of elements to insert + @param[in] last end of the range of elements to insert + + @throw type_error.309 if called on JSON values other than arrays; example: + `"cannot use insert() with string"` + @throw invalid_iterator.202 if @a pos is not an iterator of *this; + example: `"iterator does not fit current value"` + @throw invalid_iterator.210 if @a first and @a last do not belong to the + same JSON value; example: `"iterators do not fit"` + @throw invalid_iterator.211 if @a first or @a last are iterators into + container for which insert is called; example: `"passed iterators may not + belong to container"` + + @return iterator pointing to the first element inserted, or @a pos if + `first==last` + + @complexity Linear in `std::distance(first, last)` plus linear in the + distance between @a pos and end of the container. + + @liveexample{The example shows how `insert()` is used.,insert__range} + + @since version 1.0.0 + */ + iterator insert(const_iterator pos, const_iterator first, const_iterator last) + { + // insert only works for arrays + if (JSON_HEDLEY_UNLIKELY(!is_array())) + { + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } + + // check if iterator pos fits to this JSON value + if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) + { + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); + } + + // check if range iterators belong to the same JSON object + if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) + { + JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); + } + + if (JSON_HEDLEY_UNLIKELY(first.m_object == this)) + { + JSON_THROW(invalid_iterator::create(211, "passed iterators may not belong to container", *this)); + } + + // insert to array and return iterator + return insert_iterator(pos, first.m_it.array_iterator, last.m_it.array_iterator); + } + + /*! + @brief inserts elements + + Inserts elements from initializer list @a ilist before iterator @a pos. + + @param[in] pos iterator before which the content will be inserted; may be + the end() iterator + @param[in] ilist initializer list to insert the values from + + @throw type_error.309 if called on JSON values other than arrays; example: + `"cannot use insert() with string"` + @throw invalid_iterator.202 if @a pos is not an iterator of *this; + example: `"iterator does not fit current value"` + + @return iterator pointing to the first element inserted, or @a pos if + `ilist` is empty + + @complexity Linear in `ilist.size()` plus linear in the distance between + @a pos and end of the container. + + @liveexample{The example shows how `insert()` is used.,insert__ilist} + + @since version 1.0.0 + */ + iterator insert(const_iterator pos, initializer_list_t ilist) + { + // insert only works for arrays + if (JSON_HEDLEY_UNLIKELY(!is_array())) + { + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } + + // check if iterator pos fits to this JSON value + if (JSON_HEDLEY_UNLIKELY(pos.m_object != this)) + { + JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value", *this)); + } + + // insert to array and return iterator + return insert_iterator(pos, ilist.begin(), ilist.end()); + } + + /*! + @brief inserts elements + + Inserts elements from range `[first, last)`. + + @param[in] first begin of the range of elements to insert + @param[in] last end of the range of elements to insert + + @throw type_error.309 if called on JSON values other than objects; example: + `"cannot use insert() with string"` + @throw invalid_iterator.202 if iterator @a first or @a last does does not + point to an object; example: `"iterators first and last must point to + objects"` + @throw invalid_iterator.210 if @a first and @a last do not belong to the + same JSON value; example: `"iterators do not fit"` + + @complexity Logarithmic: `O(N*log(size() + N))`, where `N` is the number + of elements to insert. + + @liveexample{The example shows how `insert()` is used.,insert__range_object} + + @since version 3.0.0 + */ + void insert(const_iterator first, const_iterator last) + { + // insert only works for objects + if (JSON_HEDLEY_UNLIKELY(!is_object())) + { + JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name()), *this)); + } + + // check if range iterators belong to the same JSON object + if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) + { + JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); + } + + // passed iterators must belong to objects + if (JSON_HEDLEY_UNLIKELY(!first.m_object->is_object())) + { + JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects", *this)); + } + + m_value.object->insert(first.m_it.object_iterator, last.m_it.object_iterator); + } + + /*! + @brief updates a JSON object from another object, overwriting existing keys + + Inserts all values from JSON object @a j and overwrites existing keys. + + @param[in] j JSON object to read values from + + @throw type_error.312 if called on JSON values other than objects; example: + `"cannot use update() with string"` + + @complexity O(N*log(size() + N)), where N is the number of elements to + insert. + + @liveexample{The example shows how `update()` is used.,update} + + @sa https://docs.python.org/3.6/library/stdtypes.html#dict.update + + @since version 3.0.0 + */ + void update(const_reference j) + { + // implicitly convert null value to an empty object + if (is_null()) + { + m_type = value_t::object; + m_value.object = create(); + assert_invariant(); + } + + if (JSON_HEDLEY_UNLIKELY(!is_object())) + { + JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name()), *this)); + } + if (JSON_HEDLEY_UNLIKELY(!j.is_object())) + { + JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(j.type_name()), *this)); + } + + for (auto it = j.cbegin(); it != j.cend(); ++it) + { + m_value.object->operator[](it.key()) = it.value(); + } + } + + /*! + @brief updates a JSON object from another object, overwriting existing keys + + Inserts all values from from range `[first, last)` and overwrites existing + keys. + + @param[in] first begin of the range of elements to insert + @param[in] last end of the range of elements to insert + + @throw type_error.312 if called on JSON values other than objects; example: + `"cannot use update() with string"` + @throw invalid_iterator.202 if iterator @a first or @a last does does not + point to an object; example: `"iterators first and last must point to + objects"` + @throw invalid_iterator.210 if @a first and @a last do not belong to the + same JSON value; example: `"iterators do not fit"` + + @complexity O(N*log(size() + N)), where N is the number of elements to + insert. + + @liveexample{The example shows how `update()` is used__range.,update} + + @sa https://docs.python.org/3.6/library/stdtypes.html#dict.update + + @since version 3.0.0 + */ + void update(const_iterator first, const_iterator last) + { + // implicitly convert null value to an empty object + if (is_null()) + { + m_type = value_t::object; + m_value.object = create(); + assert_invariant(); + } + + if (JSON_HEDLEY_UNLIKELY(!is_object())) + { + JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name()), *this)); + } + + // check if range iterators belong to the same JSON object + if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object)) + { + JSON_THROW(invalid_iterator::create(210, "iterators do not fit", *this)); + } + + // passed iterators must belong to objects + if (JSON_HEDLEY_UNLIKELY(!first.m_object->is_object() + || !last.m_object->is_object())) + { + JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects", *this)); + } + + for (auto it = first; it != last; ++it) + { + m_value.object->operator[](it.key()) = it.value(); + } + } + + /*! + @brief exchanges the values + + Exchanges the contents of the JSON value with those of @a other. Does not + invoke any move, copy, or swap operations on individual elements. All + iterators and references remain valid. The past-the-end iterator is + invalidated. + + @param[in,out] other JSON value to exchange the contents with + + @complexity Constant. + + @liveexample{The example below shows how JSON values can be swapped with + `swap()`.,swap__reference} + + @since version 1.0.0 + */ + void swap(reference other) noexcept ( + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value&& + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value + ) + { + std::swap(m_type, other.m_type); + std::swap(m_value, other.m_value); + + set_parents(); + other.set_parents(); + assert_invariant(); + } + + /*! + @brief exchanges the values + + Exchanges the contents of the JSON value from @a left with those of @a right. Does not + invoke any move, copy, or swap operations on individual elements. All + iterators and references remain valid. The past-the-end iterator is + invalidated. implemented as a friend function callable via ADL. + + @param[in,out] left JSON value to exchange the contents with + @param[in,out] right JSON value to exchange the contents with + + @complexity Constant. + + @liveexample{The example below shows how JSON values can be swapped with + `swap()`.,swap__reference} + + @since version 1.0.0 + */ + friend void swap(reference left, reference right) noexcept ( + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value&& + std::is_nothrow_move_constructible::value&& + std::is_nothrow_move_assignable::value + ) + { + left.swap(right); + } + + /*! + @brief exchanges the values + + Exchanges the contents of a JSON array with those of @a other. Does not + invoke any move, copy, or swap operations on individual elements. All + iterators and references remain valid. The past-the-end iterator is + invalidated. + + @param[in,out] other array to exchange the contents with + + @throw type_error.310 when JSON value is not an array; example: `"cannot + use swap() with string"` + + @complexity Constant. + + @liveexample{The example below shows how arrays can be swapped with + `swap()`.,swap__array_t} + + @since version 1.0.0 + */ + void swap(array_t& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for arrays + if (JSON_HEDLEY_LIKELY(is_array())) + { + std::swap(*(m_value.array), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } + + /*! + @brief exchanges the values + + Exchanges the contents of a JSON object with those of @a other. Does not + invoke any move, copy, or swap operations on individual elements. All + iterators and references remain valid. The past-the-end iterator is + invalidated. + + @param[in,out] other object to exchange the contents with + + @throw type_error.310 when JSON value is not an object; example: + `"cannot use swap() with string"` + + @complexity Constant. + + @liveexample{The example below shows how objects can be swapped with + `swap()`.,swap__object_t} + + @since version 1.0.0 + */ + void swap(object_t& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for objects + if (JSON_HEDLEY_LIKELY(is_object())) + { + std::swap(*(m_value.object), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } + + /*! + @brief exchanges the values + + Exchanges the contents of a JSON string with those of @a other. Does not + invoke any move, copy, or swap operations on individual elements. All + iterators and references remain valid. The past-the-end iterator is + invalidated. + + @param[in,out] other string to exchange the contents with + + @throw type_error.310 when JSON value is not a string; example: `"cannot + use swap() with boolean"` + + @complexity Constant. + + @liveexample{The example below shows how strings can be swapped with + `swap()`.,swap__string_t} + + @since version 1.0.0 + */ + void swap(string_t& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for strings + if (JSON_HEDLEY_LIKELY(is_string())) + { + std::swap(*(m_value.string), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } + + /*! + @brief exchanges the values + + Exchanges the contents of a JSON string with those of @a other. Does not + invoke any move, copy, or swap operations on individual elements. All + iterators and references remain valid. The past-the-end iterator is + invalidated. + + @param[in,out] other binary to exchange the contents with + + @throw type_error.310 when JSON value is not a string; example: `"cannot + use swap() with boolean"` + + @complexity Constant. + + @liveexample{The example below shows how strings can be swapped with + `swap()`.,swap__binary_t} + + @since version 3.8.0 + */ + void swap(binary_t& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for strings + if (JSON_HEDLEY_LIKELY(is_binary())) + { + std::swap(*(m_value.binary), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } + + /// @copydoc swap(binary_t&) + void swap(typename binary_t::container_type& other) // NOLINT(bugprone-exception-escape) + { + // swap only works for strings + if (JSON_HEDLEY_LIKELY(is_binary())) + { + std::swap(*(m_value.binary), other); + } + else + { + JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name()), *this)); + } + } + + /// @} + + public: + ////////////////////////////////////////// + // lexicographical comparison operators // + ////////////////////////////////////////// + + /// @name lexicographical comparison operators + /// @{ + + /*! + @brief comparison: equal + + Compares two JSON values for equality according to the following rules: + - Two JSON values are equal if (1) they are from the same type and (2) + their stored values are the same according to their respective + `operator==`. + - Integer and floating-point numbers are automatically converted before + comparison. Note that two NaN values are always treated as unequal. + - Two JSON null values are equal. + + @note Floating-point inside JSON values numbers are compared with + `json::number_float_t::operator==` which is `double::operator==` by + default. To compare floating-point while respecting an epsilon, an alternative + [comparison function](https://github.com/mariokonrad/marnav/blob/master/include/marnav/math/floatingpoint.hpp#L34-#L39) + could be used, for instance + @code {.cpp} + template::value, T>::type> + inline bool is_same(T a, T b, T epsilon = std::numeric_limits::epsilon()) noexcept + { + return std::abs(a - b) <= epsilon; + } + @endcode + Or you can self-defined operator equal function like this: + @code {.cpp} + bool my_equal(const_reference lhs, const_reference rhs) { + const auto lhs_type lhs.type(); + const auto rhs_type rhs.type(); + if (lhs_type == rhs_type) { + switch(lhs_type) + // self_defined case + case value_t::number_float: + return std::abs(lhs - rhs) <= std::numeric_limits::epsilon(); + // other cases remain the same with the original + ... + } + ... + } + @endcode + + @note NaN values never compare equal to themselves or to other NaN values. + + @param[in] lhs first JSON value to consider + @param[in] rhs second JSON value to consider + @return whether the values @a lhs and @a rhs are equal + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @complexity Linear. + + @liveexample{The example demonstrates comparing several JSON + types.,operator__equal} + + @since version 1.0.0 + */ + friend bool operator==(const_reference lhs, const_reference rhs) noexcept + { +#ifdef __GNUC__ +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wfloat-equal" +#endif + const auto lhs_type = lhs.type(); + const auto rhs_type = rhs.type(); + + if (lhs_type == rhs_type) + { + switch (lhs_type) + { + case value_t::array: + return *lhs.m_value.array == *rhs.m_value.array; + + case value_t::object: + return *lhs.m_value.object == *rhs.m_value.object; + + case value_t::null: + return true; + + case value_t::string: + return *lhs.m_value.string == *rhs.m_value.string; + + case value_t::boolean: + return lhs.m_value.boolean == rhs.m_value.boolean; + + case value_t::number_integer: + return lhs.m_value.number_integer == rhs.m_value.number_integer; + + case value_t::number_unsigned: + return lhs.m_value.number_unsigned == rhs.m_value.number_unsigned; + + case value_t::number_float: + return lhs.m_value.number_float == rhs.m_value.number_float; + + case value_t::binary: + return *lhs.m_value.binary == *rhs.m_value.binary; + + case value_t::discarded: + default: + return false; + } + } + else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_float) + { + return static_cast(lhs.m_value.number_integer) == rhs.m_value.number_float; + } + else if (lhs_type == value_t::number_float && rhs_type == value_t::number_integer) + { + return lhs.m_value.number_float == static_cast(rhs.m_value.number_integer); + } + else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_float) + { + return static_cast(lhs.m_value.number_unsigned) == rhs.m_value.number_float; + } + else if (lhs_type == value_t::number_float && rhs_type == value_t::number_unsigned) + { + return lhs.m_value.number_float == static_cast(rhs.m_value.number_unsigned); + } + else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_integer) + { + return static_cast(lhs.m_value.number_unsigned) == rhs.m_value.number_integer; + } + else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_unsigned) + { + return lhs.m_value.number_integer == static_cast(rhs.m_value.number_unsigned); + } + + return false; +#ifdef __GNUC__ +#pragma GCC diagnostic pop +#endif + } + + /*! + @brief comparison: equal + @copydoc operator==(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator==(const_reference lhs, ScalarType rhs) noexcept + { + return lhs == basic_json(rhs); + } + + /*! + @brief comparison: equal + @copydoc operator==(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator==(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) == rhs; + } + + /*! + @brief comparison: not equal + + Compares two JSON values for inequality by calculating `not (lhs == rhs)`. + + @param[in] lhs first JSON value to consider + @param[in] rhs second JSON value to consider + @return whether the values @a lhs and @a rhs are not equal + + @complexity Linear. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @liveexample{The example demonstrates comparing several JSON + types.,operator__notequal} + + @since version 1.0.0 + */ + friend bool operator!=(const_reference lhs, const_reference rhs) noexcept + { + return !(lhs == rhs); + } + + /*! + @brief comparison: not equal + @copydoc operator!=(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator!=(const_reference lhs, ScalarType rhs) noexcept + { + return lhs != basic_json(rhs); + } + + /*! + @brief comparison: not equal + @copydoc operator!=(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator!=(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) != rhs; + } + + /*! + @brief comparison: less than + + Compares whether one JSON value @a lhs is less than another JSON value @a + rhs according to the following rules: + - If @a lhs and @a rhs have the same type, the values are compared using + the default `<` operator. + - Integer and floating-point numbers are automatically converted before + comparison + - In case @a lhs and @a rhs have different types, the values are ignored + and the order of the types is considered, see + @ref operator<(const value_t, const value_t). + + @param[in] lhs first JSON value to consider + @param[in] rhs second JSON value to consider + @return whether @a lhs is less than @a rhs + + @complexity Linear. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @liveexample{The example demonstrates comparing several JSON + types.,operator__less} + + @since version 1.0.0 + */ + friend bool operator<(const_reference lhs, const_reference rhs) noexcept + { + const auto lhs_type = lhs.type(); + const auto rhs_type = rhs.type(); + + if (lhs_type == rhs_type) + { + switch (lhs_type) + { + case value_t::array: + // note parentheses are necessary, see + // https://github.com/nlohmann/json/issues/1530 + return (*lhs.m_value.array) < (*rhs.m_value.array); + + case value_t::object: + return (*lhs.m_value.object) < (*rhs.m_value.object); + + case value_t::null: + return false; + + case value_t::string: + return (*lhs.m_value.string) < (*rhs.m_value.string); + + case value_t::boolean: + return (lhs.m_value.boolean) < (rhs.m_value.boolean); + + case value_t::number_integer: + return (lhs.m_value.number_integer) < (rhs.m_value.number_integer); + + case value_t::number_unsigned: + return (lhs.m_value.number_unsigned) < (rhs.m_value.number_unsigned); + + case value_t::number_float: + return (lhs.m_value.number_float) < (rhs.m_value.number_float); + + case value_t::binary: + return (*lhs.m_value.binary) < (*rhs.m_value.binary); + + case value_t::discarded: + default: + return false; + } + } + else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_float) + { + return static_cast(lhs.m_value.number_integer) < rhs.m_value.number_float; + } + else if (lhs_type == value_t::number_float && rhs_type == value_t::number_integer) + { + return lhs.m_value.number_float < static_cast(rhs.m_value.number_integer); + } + else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_float) + { + return static_cast(lhs.m_value.number_unsigned) < rhs.m_value.number_float; + } + else if (lhs_type == value_t::number_float && rhs_type == value_t::number_unsigned) + { + return lhs.m_value.number_float < static_cast(rhs.m_value.number_unsigned); + } + else if (lhs_type == value_t::number_integer && rhs_type == value_t::number_unsigned) + { + return lhs.m_value.number_integer < static_cast(rhs.m_value.number_unsigned); + } + else if (lhs_type == value_t::number_unsigned && rhs_type == value_t::number_integer) + { + return static_cast(lhs.m_value.number_unsigned) < rhs.m_value.number_integer; + } + + // We only reach this line if we cannot compare values. In that case, + // we compare types. Note we have to call the operator explicitly, + // because MSVC has problems otherwise. + return operator<(lhs_type, rhs_type); + } + + /*! + @brief comparison: less than + @copydoc operator<(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator<(const_reference lhs, ScalarType rhs) noexcept + { + return lhs < basic_json(rhs); + } + + /*! + @brief comparison: less than + @copydoc operator<(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator<(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) < rhs; + } + + /*! + @brief comparison: less than or equal + + Compares whether one JSON value @a lhs is less than or equal to another + JSON value by calculating `not (rhs < lhs)`. + + @param[in] lhs first JSON value to consider + @param[in] rhs second JSON value to consider + @return whether @a lhs is less than or equal to @a rhs + + @complexity Linear. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @liveexample{The example demonstrates comparing several JSON + types.,operator__greater} + + @since version 1.0.0 + */ + friend bool operator<=(const_reference lhs, const_reference rhs) noexcept + { + return !(rhs < lhs); + } + + /*! + @brief comparison: less than or equal + @copydoc operator<=(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator<=(const_reference lhs, ScalarType rhs) noexcept + { + return lhs <= basic_json(rhs); + } + + /*! + @brief comparison: less than or equal + @copydoc operator<=(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator<=(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) <= rhs; + } + + /*! + @brief comparison: greater than + + Compares whether one JSON value @a lhs is greater than another + JSON value by calculating `not (lhs <= rhs)`. + + @param[in] lhs first JSON value to consider + @param[in] rhs second JSON value to consider + @return whether @a lhs is greater than to @a rhs + + @complexity Linear. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @liveexample{The example demonstrates comparing several JSON + types.,operator__lessequal} + + @since version 1.0.0 + */ + friend bool operator>(const_reference lhs, const_reference rhs) noexcept + { + return !(lhs <= rhs); + } + + /*! + @brief comparison: greater than + @copydoc operator>(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator>(const_reference lhs, ScalarType rhs) noexcept + { + return lhs > basic_json(rhs); + } + + /*! + @brief comparison: greater than + @copydoc operator>(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator>(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) > rhs; + } + + /*! + @brief comparison: greater than or equal + + Compares whether one JSON value @a lhs is greater than or equal to another + JSON value by calculating `not (lhs < rhs)`. + + @param[in] lhs first JSON value to consider + @param[in] rhs second JSON value to consider + @return whether @a lhs is greater than or equal to @a rhs + + @complexity Linear. + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @liveexample{The example demonstrates comparing several JSON + types.,operator__greaterequal} + + @since version 1.0.0 + */ + friend bool operator>=(const_reference lhs, const_reference rhs) noexcept + { + return !(lhs < rhs); + } + + /*! + @brief comparison: greater than or equal + @copydoc operator>=(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator>=(const_reference lhs, ScalarType rhs) noexcept + { + return lhs >= basic_json(rhs); + } + + /*! + @brief comparison: greater than or equal + @copydoc operator>=(const_reference, const_reference) + */ + template::value, int>::type = 0> + friend bool operator>=(ScalarType lhs, const_reference rhs) noexcept + { + return basic_json(lhs) >= rhs; + } + + /// @} + + /////////////////// + // serialization // + /////////////////// + + /// @name serialization + /// @{ +#ifndef JSON_NO_IO + /*! + @brief serialize to stream + + Serialize the given JSON value @a j to the output stream @a o. The JSON + value will be serialized using the @ref dump member function. + + - The indentation of the output can be controlled with the member variable + `width` of the output stream @a o. For instance, using the manipulator + `std::setw(4)` on @a o sets the indentation level to `4` and the + serialization result is the same as calling `dump(4)`. + + - The indentation character can be controlled with the member variable + `fill` of the output stream @a o. For instance, the manipulator + `std::setfill('\\t')` sets indentation to use a tab character rather than + the default space character. + + @param[in,out] o stream to serialize to + @param[in] j JSON value to serialize + + @return the stream @a o + + @throw type_error.316 if a string stored inside the JSON value is not + UTF-8 encoded + + @complexity Linear. + + @liveexample{The example below shows the serialization with different + parameters to `width` to adjust the indentation level.,operator_serialize} + + @since version 1.0.0; indentation character added in version 3.0.0 + */ + friend std::ostream& operator<<(std::ostream& o, const basic_json& j) + { + // read width member and use it as indentation parameter if nonzero + const bool pretty_print = o.width() > 0; + const auto indentation = pretty_print ? o.width() : 0; + + // reset width to 0 for subsequent calls to this stream + o.width(0); + + // do the actual serialization + serializer s(detail::output_adapter(o), o.fill()); + s.dump(j, pretty_print, false, static_cast(indentation)); + return o; + } + + /*! + @brief serialize to stream + @deprecated This stream operator is deprecated and will be removed in + future 4.0.0 of the library. Please use + @ref operator<<(std::ostream&, const basic_json&) + instead; that is, replace calls like `j >> o;` with `o << j;`. + @since version 1.0.0; deprecated since version 3.0.0 + */ + JSON_HEDLEY_DEPRECATED_FOR(3.0.0, operator<<(std::ostream&, const basic_json&)) + friend std::ostream& operator>>(const basic_json& j, std::ostream& o) + { + return o << j; + } +#endif // JSON_NO_IO + /// @} + + + ///////////////////// + // deserialization // + ///////////////////// + + /// @name deserialization + /// @{ + + /*! + @brief deserialize from a compatible input + + @tparam InputType A compatible input, for instance + - an std::istream object + - a FILE pointer + - a C-style array of characters + - a pointer to a null-terminated string of single byte characters + - an object obj for which begin(obj) and end(obj) produces a valid pair of + iterators. + + @param[in] i input to read from + @param[in] cb a parser callback function of type @ref parser_callback_t + which is used to control the deserialization by filtering unwanted values + (optional) + @param[in] allow_exceptions whether to throw exceptions in case of a + parse error (optional, true by default) + @param[in] ignore_comments whether comments should be ignored and treated + like whitespace (true) or yield a parse error (true); (optional, false by + default) + + @return deserialized JSON value; in case of a parse error and + @a allow_exceptions set to `false`, the return value will be + value_t::discarded. + + @throw parse_error.101 if a parse error occurs; example: `""unexpected end + of input; expected string literal""` + @throw parse_error.102 if to_unicode fails or surrogate error + @throw parse_error.103 if to_unicode fails + + @complexity Linear in the length of the input. The parser is a predictive + LL(1) parser. The complexity can be higher if the parser callback function + @a cb or reading from the input @a i has a super-linear complexity. + + @note A UTF-8 byte order mark is silently ignored. + + @liveexample{The example below demonstrates the `parse()` function reading + from an array.,parse__array__parser_callback_t} + + @liveexample{The example below demonstrates the `parse()` function with + and without callback function.,parse__string__parser_callback_t} + + @liveexample{The example below demonstrates the `parse()` function with + and without callback function.,parse__istream__parser_callback_t} + + @liveexample{The example below demonstrates the `parse()` function reading + from a contiguous container.,parse__contiguouscontainer__parser_callback_t} + + @since version 2.0.3 (contiguous containers); version 3.9.0 allowed to + ignore comments. + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json parse(InputType&& i, + const parser_callback_t cb = nullptr, + const bool allow_exceptions = true, + const bool ignore_comments = false) + { + basic_json result; + parser(detail::input_adapter(std::forward(i)), cb, allow_exceptions, ignore_comments).parse(true, result); + return result; + } + + /*! + @brief deserialize from a pair of character iterators + + The value_type of the iterator must be a integral type with size of 1, 2 or + 4 bytes, which will be interpreted respectively as UTF-8, UTF-16 and UTF-32. + + @param[in] first iterator to start of character range + @param[in] last iterator to end of character range + @param[in] cb a parser callback function of type @ref parser_callback_t + which is used to control the deserialization by filtering unwanted values + (optional) + @param[in] allow_exceptions whether to throw exceptions in case of a + parse error (optional, true by default) + @param[in] ignore_comments whether comments should be ignored and treated + like whitespace (true) or yield a parse error (true); (optional, false by + default) + + @return deserialized JSON value; in case of a parse error and + @a allow_exceptions set to `false`, the return value will be + value_t::discarded. + + @throw parse_error.101 if a parse error occurs; example: `""unexpected end + of input; expected string literal""` + @throw parse_error.102 if to_unicode fails or surrogate error + @throw parse_error.103 if to_unicode fails + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json parse(IteratorType first, + IteratorType last, + const parser_callback_t cb = nullptr, + const bool allow_exceptions = true, + const bool ignore_comments = false) + { + basic_json result; + parser(detail::input_adapter(std::move(first), std::move(last)), cb, allow_exceptions, ignore_comments).parse(true, result); + return result; + } + + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, parse(ptr, ptr + len)) + static basic_json parse(detail::span_input_adapter&& i, + const parser_callback_t cb = nullptr, + const bool allow_exceptions = true, + const bool ignore_comments = false) + { + basic_json result; + parser(i.get(), cb, allow_exceptions, ignore_comments).parse(true, result); + return result; + } + + /*! + @brief check if the input is valid JSON + + Unlike the @ref parse(InputType&&, const parser_callback_t,const bool) + function, this function neither throws an exception in case of invalid JSON + input (i.e., a parse error) nor creates diagnostic information. + + @tparam InputType A compatible input, for instance + - an std::istream object + - a FILE pointer + - a C-style array of characters + - a pointer to a null-terminated string of single byte characters + - an object obj for which begin(obj) and end(obj) produces a valid pair of + iterators. + + @param[in] i input to read from + @param[in] ignore_comments whether comments should be ignored and treated + like whitespace (true) or yield a parse error (true); (optional, false by + default) + + @return Whether the input read from @a i is valid JSON. + + @complexity Linear in the length of the input. The parser is a predictive + LL(1) parser. + + @note A UTF-8 byte order mark is silently ignored. + + @liveexample{The example below demonstrates the `accept()` function reading + from a string.,accept__string} + */ + template + static bool accept(InputType&& i, + const bool ignore_comments = false) + { + return parser(detail::input_adapter(std::forward(i)), nullptr, false, ignore_comments).accept(true); + } + + template + static bool accept(IteratorType first, IteratorType last, + const bool ignore_comments = false) + { + return parser(detail::input_adapter(std::move(first), std::move(last)), nullptr, false, ignore_comments).accept(true); + } + + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, accept(ptr, ptr + len)) + static bool accept(detail::span_input_adapter&& i, + const bool ignore_comments = false) + { + return parser(i.get(), nullptr, false, ignore_comments).accept(true); + } + + /*! + @brief generate SAX events + + The SAX event lister must follow the interface of @ref json_sax. + + This function reads from a compatible input. Examples are: + - an std::istream object + - a FILE pointer + - a C-style array of characters + - a pointer to a null-terminated string of single byte characters + - an object obj for which begin(obj) and end(obj) produces a valid pair of + iterators. + + @param[in] i input to read from + @param[in,out] sax SAX event listener + @param[in] format the format to parse (JSON, CBOR, MessagePack, or UBJSON) + @param[in] strict whether the input has to be consumed completely + @param[in] ignore_comments whether comments should be ignored and treated + like whitespace (true) or yield a parse error (true); (optional, false by + default); only applies to the JSON file format. + + @return return value of the last processed SAX event + + @throw parse_error.101 if a parse error occurs; example: `""unexpected end + of input; expected string literal""` + @throw parse_error.102 if to_unicode fails or surrogate error + @throw parse_error.103 if to_unicode fails + + @complexity Linear in the length of the input. The parser is a predictive + LL(1) parser. The complexity can be higher if the SAX consumer @a sax has + a super-linear complexity. + + @note A UTF-8 byte order mark is silently ignored. + + @liveexample{The example below demonstrates the `sax_parse()` function + reading from string and processing the events with a user-defined SAX + event consumer.,sax_parse} + + @since version 3.2.0 + */ + template + JSON_HEDLEY_NON_NULL(2) + static bool sax_parse(InputType&& i, SAX* sax, + input_format_t format = input_format_t::json, + const bool strict = true, + const bool ignore_comments = false) + { + auto ia = detail::input_adapter(std::forward(i)); + return format == input_format_t::json + ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) + : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); + } + + template + JSON_HEDLEY_NON_NULL(3) + static bool sax_parse(IteratorType first, IteratorType last, SAX* sax, + input_format_t format = input_format_t::json, + const bool strict = true, + const bool ignore_comments = false) + { + auto ia = detail::input_adapter(std::move(first), std::move(last)); + return format == input_format_t::json + ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) + : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); + } + + template + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, sax_parse(ptr, ptr + len, ...)) + JSON_HEDLEY_NON_NULL(2) + static bool sax_parse(detail::span_input_adapter&& i, SAX* sax, + input_format_t format = input_format_t::json, + const bool strict = true, + const bool ignore_comments = false) + { + auto ia = i.get(); + return format == input_format_t::json + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + ? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict) + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + : detail::binary_reader(std::move(ia)).sax_parse(format, sax, strict); + } +#ifndef JSON_NO_IO + /*! + @brief deserialize from stream + @deprecated This stream operator is deprecated and will be removed in + version 4.0.0 of the library. Please use + @ref operator>>(std::istream&, basic_json&) + instead; that is, replace calls like `j << i;` with `i >> j;`. + @since version 1.0.0; deprecated since version 3.0.0 + */ + JSON_HEDLEY_DEPRECATED_FOR(3.0.0, operator>>(std::istream&, basic_json&)) + friend std::istream& operator<<(basic_json& j, std::istream& i) + { + return operator>>(i, j); + } + + /*! + @brief deserialize from stream + + Deserializes an input stream to a JSON value. + + @param[in,out] i input stream to read a serialized JSON value from + @param[in,out] j JSON value to write the deserialized input to + + @throw parse_error.101 in case of an unexpected token + @throw parse_error.102 if to_unicode fails or surrogate error + @throw parse_error.103 if to_unicode fails + + @complexity Linear in the length of the input. The parser is a predictive + LL(1) parser. + + @note A UTF-8 byte order mark is silently ignored. + + @liveexample{The example below shows how a JSON value is constructed by + reading a serialization from a stream.,operator_deserialize} + + @sa parse(std::istream&, const parser_callback_t) for a variant with a + parser callback function to filter values while parsing + + @since version 1.0.0 + */ + friend std::istream& operator>>(std::istream& i, basic_json& j) + { + parser(detail::input_adapter(i)).parse(false, j); + return i; + } +#endif // JSON_NO_IO + /// @} + + /////////////////////////// + // convenience functions // + /////////////////////////// + + /*! + @brief return the type as string + + Returns the type name as string to be used in error messages - usually to + indicate that a function was called on a wrong JSON type. + + @return a string representation of a the @a m_type member: + Value type | return value + ----------- | ------------- + null | `"null"` + boolean | `"boolean"` + string | `"string"` + number | `"number"` (for all number types) + object | `"object"` + array | `"array"` + binary | `"binary"` + discarded | `"discarded"` + + @exceptionsafety No-throw guarantee: this function never throws exceptions. + + @complexity Constant. + + @liveexample{The following code exemplifies `type_name()` for all JSON + types.,type_name} + + @sa see @ref type() -- return the type of the JSON value + @sa see @ref operator value_t() -- return the type of the JSON value (implicit) + + @since version 1.0.0, public since 2.1.0, `const char*` and `noexcept` + since 3.0.0 + */ + JSON_HEDLEY_RETURNS_NON_NULL + const char* type_name() const noexcept + { + { + switch (m_type) + { + case value_t::null: + return "null"; + case value_t::object: + return "object"; + case value_t::array: + return "array"; + case value_t::string: + return "string"; + case value_t::boolean: + return "boolean"; + case value_t::binary: + return "binary"; + case value_t::discarded: + return "discarded"; + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + default: + return "number"; + } + } + } + + + JSON_PRIVATE_UNLESS_TESTED: + ////////////////////// + // member variables // + ////////////////////// + + /// the type of the current element + value_t m_type = value_t::null; + + /// the value of the current element + json_value m_value = {}; + +#if JSON_DIAGNOSTICS + /// a pointer to a parent value (for debugging purposes) + basic_json* m_parent = nullptr; +#endif + + ////////////////////////////////////////// + // binary serialization/deserialization // + ////////////////////////////////////////// + + /// @name binary serialization/deserialization support + /// @{ + + public: + /*! + @brief create a CBOR serialization of a given JSON value + + Serializes a given JSON value @a j to a byte vector using the CBOR (Concise + Binary Object Representation) serialization format. CBOR is a binary + serialization format which aims to be more compact than JSON itself, yet + more efficient to parse. + + The library uses the following mapping from JSON values types to + CBOR types according to the CBOR specification (RFC 7049): + + JSON value type | value/range | CBOR type | first byte + --------------- | ------------------------------------------ | ---------------------------------- | --------------- + null | `null` | Null | 0xF6 + boolean | `true` | True | 0xF5 + boolean | `false` | False | 0xF4 + number_integer | -9223372036854775808..-2147483649 | Negative integer (8 bytes follow) | 0x3B + number_integer | -2147483648..-32769 | Negative integer (4 bytes follow) | 0x3A + number_integer | -32768..-129 | Negative integer (2 bytes follow) | 0x39 + number_integer | -128..-25 | Negative integer (1 byte follow) | 0x38 + number_integer | -24..-1 | Negative integer | 0x20..0x37 + number_integer | 0..23 | Integer | 0x00..0x17 + number_integer | 24..255 | Unsigned integer (1 byte follow) | 0x18 + number_integer | 256..65535 | Unsigned integer (2 bytes follow) | 0x19 + number_integer | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A + number_integer | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B + number_unsigned | 0..23 | Integer | 0x00..0x17 + number_unsigned | 24..255 | Unsigned integer (1 byte follow) | 0x18 + number_unsigned | 256..65535 | Unsigned integer (2 bytes follow) | 0x19 + number_unsigned | 65536..4294967295 | Unsigned integer (4 bytes follow) | 0x1A + number_unsigned | 4294967296..18446744073709551615 | Unsigned integer (8 bytes follow) | 0x1B + number_float | *any value representable by a float* | Single-Precision Float | 0xFA + number_float | *any value NOT representable by a float* | Double-Precision Float | 0xFB + string | *length*: 0..23 | UTF-8 string | 0x60..0x77 + string | *length*: 23..255 | UTF-8 string (1 byte follow) | 0x78 + string | *length*: 256..65535 | UTF-8 string (2 bytes follow) | 0x79 + string | *length*: 65536..4294967295 | UTF-8 string (4 bytes follow) | 0x7A + string | *length*: 4294967296..18446744073709551615 | UTF-8 string (8 bytes follow) | 0x7B + array | *size*: 0..23 | array | 0x80..0x97 + array | *size*: 23..255 | array (1 byte follow) | 0x98 + array | *size*: 256..65535 | array (2 bytes follow) | 0x99 + array | *size*: 65536..4294967295 | array (4 bytes follow) | 0x9A + array | *size*: 4294967296..18446744073709551615 | array (8 bytes follow) | 0x9B + object | *size*: 0..23 | map | 0xA0..0xB7 + object | *size*: 23..255 | map (1 byte follow) | 0xB8 + object | *size*: 256..65535 | map (2 bytes follow) | 0xB9 + object | *size*: 65536..4294967295 | map (4 bytes follow) | 0xBA + object | *size*: 4294967296..18446744073709551615 | map (8 bytes follow) | 0xBB + binary | *size*: 0..23 | byte string | 0x40..0x57 + binary | *size*: 23..255 | byte string (1 byte follow) | 0x58 + binary | *size*: 256..65535 | byte string (2 bytes follow) | 0x59 + binary | *size*: 65536..4294967295 | byte string (4 bytes follow) | 0x5A + binary | *size*: 4294967296..18446744073709551615 | byte string (8 bytes follow) | 0x5B + + Binary values with subtype are mapped to tagged values (0xD8..0xDB) + depending on the subtype, followed by a byte string, see "binary" cells + in the table above. + + @note The mapping is **complete** in the sense that any JSON value type + can be converted to a CBOR value. + + @note If NaN or Infinity are stored inside a JSON number, they are + serialized properly. This behavior differs from the @ref dump() + function which serializes NaN or Infinity to `null`. + + @note The following CBOR types are not used in the conversion: + - UTF-8 strings terminated by "break" (0x7F) + - arrays terminated by "break" (0x9F) + - maps terminated by "break" (0xBF) + - byte strings terminated by "break" (0x5F) + - date/time (0xC0..0xC1) + - bignum (0xC2..0xC3) + - decimal fraction (0xC4) + - bigfloat (0xC5) + - expected conversions (0xD5..0xD7) + - simple values (0xE0..0xF3, 0xF8) + - undefined (0xF7) + - half-precision floats (0xF9) + - break (0xFF) + + @param[in] j JSON value to serialize + @return CBOR serialization as byte vector + + @complexity Linear in the size of the JSON value @a j. + + @liveexample{The example shows the serialization of a JSON value to a byte + vector in CBOR format.,to_cbor} + + @sa http://cbor.io + @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the + analogous deserialization + @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format + @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the + related UBJSON format + + @since version 2.0.9; compact representation of floating-point numbers + since version 3.8.0 + */ + static std::vector to_cbor(const basic_json& j) + { + std::vector result; + to_cbor(j, result); + return result; + } + + static void to_cbor(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_cbor(j); + } + + static void to_cbor(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_cbor(j); + } + + /*! + @brief create a MessagePack serialization of a given JSON value + + Serializes a given JSON value @a j to a byte vector using the MessagePack + serialization format. MessagePack is a binary serialization format which + aims to be more compact than JSON itself, yet more efficient to parse. + + The library uses the following mapping from JSON values types to + MessagePack types according to the MessagePack specification: + + JSON value type | value/range | MessagePack type | first byte + --------------- | --------------------------------- | ---------------- | ---------- + null | `null` | nil | 0xC0 + boolean | `true` | true | 0xC3 + boolean | `false` | false | 0xC2 + number_integer | -9223372036854775808..-2147483649 | int64 | 0xD3 + number_integer | -2147483648..-32769 | int32 | 0xD2 + number_integer | -32768..-129 | int16 | 0xD1 + number_integer | -128..-33 | int8 | 0xD0 + number_integer | -32..-1 | negative fixint | 0xE0..0xFF + number_integer | 0..127 | positive fixint | 0x00..0x7F + number_integer | 128..255 | uint 8 | 0xCC + number_integer | 256..65535 | uint 16 | 0xCD + number_integer | 65536..4294967295 | uint 32 | 0xCE + number_integer | 4294967296..18446744073709551615 | uint 64 | 0xCF + number_unsigned | 0..127 | positive fixint | 0x00..0x7F + number_unsigned | 128..255 | uint 8 | 0xCC + number_unsigned | 256..65535 | uint 16 | 0xCD + number_unsigned | 65536..4294967295 | uint 32 | 0xCE + number_unsigned | 4294967296..18446744073709551615 | uint 64 | 0xCF + number_float | *any value representable by a float* | float 32 | 0xCA + number_float | *any value NOT representable by a float* | float 64 | 0xCB + string | *length*: 0..31 | fixstr | 0xA0..0xBF + string | *length*: 32..255 | str 8 | 0xD9 + string | *length*: 256..65535 | str 16 | 0xDA + string | *length*: 65536..4294967295 | str 32 | 0xDB + array | *size*: 0..15 | fixarray | 0x90..0x9F + array | *size*: 16..65535 | array 16 | 0xDC + array | *size*: 65536..4294967295 | array 32 | 0xDD + object | *size*: 0..15 | fix map | 0x80..0x8F + object | *size*: 16..65535 | map 16 | 0xDE + object | *size*: 65536..4294967295 | map 32 | 0xDF + binary | *size*: 0..255 | bin 8 | 0xC4 + binary | *size*: 256..65535 | bin 16 | 0xC5 + binary | *size*: 65536..4294967295 | bin 32 | 0xC6 + + @note The mapping is **complete** in the sense that any JSON value type + can be converted to a MessagePack value. + + @note The following values can **not** be converted to a MessagePack value: + - strings with more than 4294967295 bytes + - byte strings with more than 4294967295 bytes + - arrays with more than 4294967295 elements + - objects with more than 4294967295 elements + + @note Any MessagePack output created @ref to_msgpack can be successfully + parsed by @ref from_msgpack. + + @note If NaN or Infinity are stored inside a JSON number, they are + serialized properly. This behavior differs from the @ref dump() + function which serializes NaN or Infinity to `null`. + + @param[in] j JSON value to serialize + @return MessagePack serialization as byte vector + + @complexity Linear in the size of the JSON value @a j. + + @liveexample{The example shows the serialization of a JSON value to a byte + vector in MessagePack format.,to_msgpack} + + @sa http://msgpack.org + @sa see @ref from_msgpack for the analogous deserialization + @sa see @ref to_cbor(const basic_json& for the related CBOR format + @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the + related UBJSON format + + @since version 2.0.9 + */ + static std::vector to_msgpack(const basic_json& j) + { + std::vector result; + to_msgpack(j, result); + return result; + } + + static void to_msgpack(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_msgpack(j); + } + + static void to_msgpack(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_msgpack(j); + } + + /*! + @brief create a UBJSON serialization of a given JSON value + + Serializes a given JSON value @a j to a byte vector using the UBJSON + (Universal Binary JSON) serialization format. UBJSON aims to be more compact + than JSON itself, yet more efficient to parse. + + The library uses the following mapping from JSON values types to + UBJSON types according to the UBJSON specification: + + JSON value type | value/range | UBJSON type | marker + --------------- | --------------------------------- | ----------- | ------ + null | `null` | null | `Z` + boolean | `true` | true | `T` + boolean | `false` | false | `F` + number_integer | -9223372036854775808..-2147483649 | int64 | `L` + number_integer | -2147483648..-32769 | int32 | `l` + number_integer | -32768..-129 | int16 | `I` + number_integer | -128..127 | int8 | `i` + number_integer | 128..255 | uint8 | `U` + number_integer | 256..32767 | int16 | `I` + number_integer | 32768..2147483647 | int32 | `l` + number_integer | 2147483648..9223372036854775807 | int64 | `L` + number_unsigned | 0..127 | int8 | `i` + number_unsigned | 128..255 | uint8 | `U` + number_unsigned | 256..32767 | int16 | `I` + number_unsigned | 32768..2147483647 | int32 | `l` + number_unsigned | 2147483648..9223372036854775807 | int64 | `L` + number_unsigned | 2147483649..18446744073709551615 | high-precision | `H` + number_float | *any value* | float64 | `D` + string | *with shortest length indicator* | string | `S` + array | *see notes on optimized format* | array | `[` + object | *see notes on optimized format* | map | `{` + + @note The mapping is **complete** in the sense that any JSON value type + can be converted to a UBJSON value. + + @note The following values can **not** be converted to a UBJSON value: + - strings with more than 9223372036854775807 bytes (theoretical) + + @note The following markers are not used in the conversion: + - `Z`: no-op values are not created. + - `C`: single-byte strings are serialized with `S` markers. + + @note Any UBJSON output created @ref to_ubjson can be successfully parsed + by @ref from_ubjson. + + @note If NaN or Infinity are stored inside a JSON number, they are + serialized properly. This behavior differs from the @ref dump() + function which serializes NaN or Infinity to `null`. + + @note The optimized formats for containers are supported: Parameter + @a use_size adds size information to the beginning of a container and + removes the closing marker. Parameter @a use_type further checks + whether all elements of a container have the same type and adds the + type marker to the beginning of the container. The @a use_type + parameter must only be used together with @a use_size = true. Note + that @a use_size = true alone may result in larger representations - + the benefit of this parameter is that the receiving side is + immediately informed on the number of elements of the container. + + @note If the JSON data contains the binary type, the value stored is a list + of integers, as suggested by the UBJSON documentation. In particular, + this means that serialization and the deserialization of a JSON + containing binary values into UBJSON and back will result in a + different JSON object. + + @param[in] j JSON value to serialize + @param[in] use_size whether to add size annotations to container types + @param[in] use_type whether to add type annotations to container types + (must be combined with @a use_size = true) + @return UBJSON serialization as byte vector + + @complexity Linear in the size of the JSON value @a j. + + @liveexample{The example shows the serialization of a JSON value to a byte + vector in UBJSON format.,to_ubjson} + + @sa http://ubjson.org + @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the + analogous deserialization + @sa see @ref to_cbor(const basic_json& for the related CBOR format + @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format + + @since version 3.1.0 + */ + static std::vector to_ubjson(const basic_json& j, + const bool use_size = false, + const bool use_type = false) + { + std::vector result; + to_ubjson(j, result, use_size, use_type); + return result; + } + + static void to_ubjson(const basic_json& j, detail::output_adapter o, + const bool use_size = false, const bool use_type = false) + { + binary_writer(o).write_ubjson(j, use_size, use_type); + } + + static void to_ubjson(const basic_json& j, detail::output_adapter o, + const bool use_size = false, const bool use_type = false) + { + binary_writer(o).write_ubjson(j, use_size, use_type); + } + + + /*! + @brief Serializes the given JSON object `j` to BSON and returns a vector + containing the corresponding BSON-representation. + + BSON (Binary JSON) is a binary format in which zero or more ordered key/value pairs are + stored as a single entity (a so-called document). + + The library uses the following mapping from JSON values types to BSON types: + + JSON value type | value/range | BSON type | marker + --------------- | --------------------------------- | ----------- | ------ + null | `null` | null | 0x0A + boolean | `true`, `false` | boolean | 0x08 + number_integer | -9223372036854775808..-2147483649 | int64 | 0x12 + number_integer | -2147483648..2147483647 | int32 | 0x10 + number_integer | 2147483648..9223372036854775807 | int64 | 0x12 + number_unsigned | 0..2147483647 | int32 | 0x10 + number_unsigned | 2147483648..9223372036854775807 | int64 | 0x12 + number_unsigned | 9223372036854775808..18446744073709551615| -- | -- + number_float | *any value* | double | 0x01 + string | *any value* | string | 0x02 + array | *any value* | document | 0x04 + object | *any value* | document | 0x03 + binary | *any value* | binary | 0x05 + + @warning The mapping is **incomplete**, since only JSON-objects (and things + contained therein) can be serialized to BSON. + Also, integers larger than 9223372036854775807 cannot be serialized to BSON, + and the keys may not contain U+0000, since they are serialized a + zero-terminated c-strings. + + @throw out_of_range.407 if `j.is_number_unsigned() && j.get() > 9223372036854775807` + @throw out_of_range.409 if a key in `j` contains a NULL (U+0000) + @throw type_error.317 if `!j.is_object()` + + @pre The input `j` is required to be an object: `j.is_object() == true`. + + @note Any BSON output created via @ref to_bson can be successfully parsed + by @ref from_bson. + + @param[in] j JSON value to serialize + @return BSON serialization as byte vector + + @complexity Linear in the size of the JSON value @a j. + + @liveexample{The example shows the serialization of a JSON value to a byte + vector in BSON format.,to_bson} + + @sa http://bsonspec.org/spec.html + @sa see @ref from_bson(detail::input_adapter&&, const bool strict) for the + analogous deserialization + @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the + related UBJSON format + @sa see @ref to_cbor(const basic_json&) for the related CBOR format + @sa see @ref to_msgpack(const basic_json&) for the related MessagePack format + */ + static std::vector to_bson(const basic_json& j) + { + std::vector result; + to_bson(j, result); + return result; + } + + /*! + @brief Serializes the given JSON object `j` to BSON and forwards the + corresponding BSON-representation to the given output_adapter `o`. + @param j The JSON object to convert to BSON. + @param o The output adapter that receives the binary BSON representation. + @pre The input `j` shall be an object: `j.is_object() == true` + @sa see @ref to_bson(const basic_json&) + */ + static void to_bson(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_bson(j); + } + + /*! + @copydoc to_bson(const basic_json&, detail::output_adapter) + */ + static void to_bson(const basic_json& j, detail::output_adapter o) + { + binary_writer(o).write_bson(j); + } + + + /*! + @brief create a JSON value from an input in CBOR format + + Deserializes a given input @a i to a JSON value using the CBOR (Concise + Binary Object Representation) serialization format. + + The library maps CBOR types to JSON value types as follows: + + CBOR type | JSON value type | first byte + ---------------------- | --------------- | ---------- + Integer | number_unsigned | 0x00..0x17 + Unsigned integer | number_unsigned | 0x18 + Unsigned integer | number_unsigned | 0x19 + Unsigned integer | number_unsigned | 0x1A + Unsigned integer | number_unsigned | 0x1B + Negative integer | number_integer | 0x20..0x37 + Negative integer | number_integer | 0x38 + Negative integer | number_integer | 0x39 + Negative integer | number_integer | 0x3A + Negative integer | number_integer | 0x3B + Byte string | binary | 0x40..0x57 + Byte string | binary | 0x58 + Byte string | binary | 0x59 + Byte string | binary | 0x5A + Byte string | binary | 0x5B + UTF-8 string | string | 0x60..0x77 + UTF-8 string | string | 0x78 + UTF-8 string | string | 0x79 + UTF-8 string | string | 0x7A + UTF-8 string | string | 0x7B + UTF-8 string | string | 0x7F + array | array | 0x80..0x97 + array | array | 0x98 + array | array | 0x99 + array | array | 0x9A + array | array | 0x9B + array | array | 0x9F + map | object | 0xA0..0xB7 + map | object | 0xB8 + map | object | 0xB9 + map | object | 0xBA + map | object | 0xBB + map | object | 0xBF + False | `false` | 0xF4 + True | `true` | 0xF5 + Null | `null` | 0xF6 + Half-Precision Float | number_float | 0xF9 + Single-Precision Float | number_float | 0xFA + Double-Precision Float | number_float | 0xFB + + @warning The mapping is **incomplete** in the sense that not all CBOR + types can be converted to a JSON value. The following CBOR types + are not supported and will yield parse errors (parse_error.112): + - date/time (0xC0..0xC1) + - bignum (0xC2..0xC3) + - decimal fraction (0xC4) + - bigfloat (0xC5) + - expected conversions (0xD5..0xD7) + - simple values (0xE0..0xF3, 0xF8) + - undefined (0xF7) + + @warning CBOR allows map keys of any type, whereas JSON only allows + strings as keys in object values. Therefore, CBOR maps with keys + other than UTF-8 strings are rejected (parse_error.113). + + @note Any CBOR output created @ref to_cbor can be successfully parsed by + @ref from_cbor. + + @param[in] i an input in CBOR format convertible to an input adapter + @param[in] strict whether to expect the input to be consumed until EOF + (true by default) + @param[in] allow_exceptions whether to throw exceptions in case of a + parse error (optional, true by default) + @param[in] tag_handler how to treat CBOR tags (optional, error by default) + + @return deserialized JSON value; in case of a parse error and + @a allow_exceptions set to `false`, the return value will be + value_t::discarded. + + @throw parse_error.110 if the given input ends prematurely or the end of + file was not reached when @a strict was set to true + @throw parse_error.112 if unsupported features from CBOR were + used in the given input @a v or if the input is not valid CBOR + @throw parse_error.113 if a string was expected as map key, but not found + + @complexity Linear in the size of the input @a i. + + @liveexample{The example shows the deserialization of a byte vector in CBOR + format to a JSON value.,from_cbor} + + @sa http://cbor.io + @sa see @ref to_cbor(const basic_json&) for the analogous serialization + @sa see @ref from_msgpack(InputType&&, const bool, const bool) for the + related MessagePack format + @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the + related UBJSON format + + @since version 2.0.9; parameter @a start_index since 2.1.1; changed to + consume input adapters, removed start_index parameter, and added + @a strict parameter since 3.0.0; added @a allow_exceptions parameter + since 3.2.0; added @a tag_handler parameter since 3.9.0. + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_cbor(InputType&& i, + const bool strict = true, + const bool allow_exceptions = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::forward(i)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); + return res ? result : basic_json(value_t::discarded); + } + + /*! + @copydoc from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_cbor(IteratorType first, IteratorType last, + const bool strict = true, + const bool allow_exceptions = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::move(first), std::move(last)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); + return res ? result : basic_json(value_t::discarded); + } + + template + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_cbor(ptr, ptr + len)) + static basic_json from_cbor(const T* ptr, std::size_t len, + const bool strict = true, + const bool allow_exceptions = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + return from_cbor(ptr, ptr + len, strict, allow_exceptions, tag_handler); + } + + + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_cbor(ptr, ptr + len)) + static basic_json from_cbor(detail::span_input_adapter&& i, + const bool strict = true, + const bool allow_exceptions = true, + const cbor_tag_handler_t tag_handler = cbor_tag_handler_t::error) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = i.get(); + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::cbor, &sdp, strict, tag_handler); + return res ? result : basic_json(value_t::discarded); + } + + /*! + @brief create a JSON value from an input in MessagePack format + + Deserializes a given input @a i to a JSON value using the MessagePack + serialization format. + + The library maps MessagePack types to JSON value types as follows: + + MessagePack type | JSON value type | first byte + ---------------- | --------------- | ---------- + positive fixint | number_unsigned | 0x00..0x7F + fixmap | object | 0x80..0x8F + fixarray | array | 0x90..0x9F + fixstr | string | 0xA0..0xBF + nil | `null` | 0xC0 + false | `false` | 0xC2 + true | `true` | 0xC3 + float 32 | number_float | 0xCA + float 64 | number_float | 0xCB + uint 8 | number_unsigned | 0xCC + uint 16 | number_unsigned | 0xCD + uint 32 | number_unsigned | 0xCE + uint 64 | number_unsigned | 0xCF + int 8 | number_integer | 0xD0 + int 16 | number_integer | 0xD1 + int 32 | number_integer | 0xD2 + int 64 | number_integer | 0xD3 + str 8 | string | 0xD9 + str 16 | string | 0xDA + str 32 | string | 0xDB + array 16 | array | 0xDC + array 32 | array | 0xDD + map 16 | object | 0xDE + map 32 | object | 0xDF + bin 8 | binary | 0xC4 + bin 16 | binary | 0xC5 + bin 32 | binary | 0xC6 + ext 8 | binary | 0xC7 + ext 16 | binary | 0xC8 + ext 32 | binary | 0xC9 + fixext 1 | binary | 0xD4 + fixext 2 | binary | 0xD5 + fixext 4 | binary | 0xD6 + fixext 8 | binary | 0xD7 + fixext 16 | binary | 0xD8 + negative fixint | number_integer | 0xE0-0xFF + + @note Any MessagePack output created @ref to_msgpack can be successfully + parsed by @ref from_msgpack. + + @param[in] i an input in MessagePack format convertible to an input + adapter + @param[in] strict whether to expect the input to be consumed until EOF + (true by default) + @param[in] allow_exceptions whether to throw exceptions in case of a + parse error (optional, true by default) + + @return deserialized JSON value; in case of a parse error and + @a allow_exceptions set to `false`, the return value will be + value_t::discarded. + + @throw parse_error.110 if the given input ends prematurely or the end of + file was not reached when @a strict was set to true + @throw parse_error.112 if unsupported features from MessagePack were + used in the given input @a i or if the input is not valid MessagePack + @throw parse_error.113 if a string was expected as map key, but not found + + @complexity Linear in the size of the input @a i. + + @liveexample{The example shows the deserialization of a byte vector in + MessagePack format to a JSON value.,from_msgpack} + + @sa http://msgpack.org + @sa see @ref to_msgpack(const basic_json&) for the analogous serialization + @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the + related CBOR format + @sa see @ref from_ubjson(InputType&&, const bool, const bool) for + the related UBJSON format + @sa see @ref from_bson(InputType&&, const bool, const bool) for + the related BSON format + + @since version 2.0.9; parameter @a start_index since 2.1.1; changed to + consume input adapters, removed start_index parameter, and added + @a strict parameter since 3.0.0; added @a allow_exceptions parameter + since 3.2.0 + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_msgpack(InputType&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::forward(i)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + /*! + @copydoc from_msgpack(InputType&&, const bool, const bool) + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_msgpack(IteratorType first, IteratorType last, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::move(first), std::move(last)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + + template + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len)) + static basic_json from_msgpack(const T* ptr, std::size_t len, + const bool strict = true, + const bool allow_exceptions = true) + { + return from_msgpack(ptr, ptr + len, strict, allow_exceptions); + } + + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_msgpack(ptr, ptr + len)) + static basic_json from_msgpack(detail::span_input_adapter&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = i.get(); + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::msgpack, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + + /*! + @brief create a JSON value from an input in UBJSON format + + Deserializes a given input @a i to a JSON value using the UBJSON (Universal + Binary JSON) serialization format. + + The library maps UBJSON types to JSON value types as follows: + + UBJSON type | JSON value type | marker + ----------- | --------------------------------------- | ------ + no-op | *no value, next value is read* | `N` + null | `null` | `Z` + false | `false` | `F` + true | `true` | `T` + float32 | number_float | `d` + float64 | number_float | `D` + uint8 | number_unsigned | `U` + int8 | number_integer | `i` + int16 | number_integer | `I` + int32 | number_integer | `l` + int64 | number_integer | `L` + high-precision number | number_integer, number_unsigned, or number_float - depends on number string | 'H' + string | string | `S` + char | string | `C` + array | array (optimized values are supported) | `[` + object | object (optimized values are supported) | `{` + + @note The mapping is **complete** in the sense that any UBJSON value can + be converted to a JSON value. + + @param[in] i an input in UBJSON format convertible to an input adapter + @param[in] strict whether to expect the input to be consumed until EOF + (true by default) + @param[in] allow_exceptions whether to throw exceptions in case of a + parse error (optional, true by default) + + @return deserialized JSON value; in case of a parse error and + @a allow_exceptions set to `false`, the return value will be + value_t::discarded. + + @throw parse_error.110 if the given input ends prematurely or the end of + file was not reached when @a strict was set to true + @throw parse_error.112 if a parse error occurs + @throw parse_error.113 if a string could not be parsed successfully + + @complexity Linear in the size of the input @a i. + + @liveexample{The example shows the deserialization of a byte vector in + UBJSON format to a JSON value.,from_ubjson} + + @sa http://ubjson.org + @sa see @ref to_ubjson(const basic_json&, const bool, const bool) for the + analogous serialization + @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the + related CBOR format + @sa see @ref from_msgpack(InputType&&, const bool, const bool) for + the related MessagePack format + @sa see @ref from_bson(InputType&&, const bool, const bool) for + the related BSON format + + @since version 3.1.0; added @a allow_exceptions parameter since 3.2.0 + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_ubjson(InputType&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::forward(i)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + /*! + @copydoc from_ubjson(InputType&&, const bool, const bool) + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_ubjson(IteratorType first, IteratorType last, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::move(first), std::move(last)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + template + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_ubjson(ptr, ptr + len)) + static basic_json from_ubjson(const T* ptr, std::size_t len, + const bool strict = true, + const bool allow_exceptions = true) + { + return from_ubjson(ptr, ptr + len, strict, allow_exceptions); + } + + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_ubjson(ptr, ptr + len)) + static basic_json from_ubjson(detail::span_input_adapter&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = i.get(); + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::ubjson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + + /*! + @brief Create a JSON value from an input in BSON format + + Deserializes a given input @a i to a JSON value using the BSON (Binary JSON) + serialization format. + + The library maps BSON record types to JSON value types as follows: + + BSON type | BSON marker byte | JSON value type + --------------- | ---------------- | --------------------------- + double | 0x01 | number_float + string | 0x02 | string + document | 0x03 | object + array | 0x04 | array + binary | 0x05 | binary + undefined | 0x06 | still unsupported + ObjectId | 0x07 | still unsupported + boolean | 0x08 | boolean + UTC Date-Time | 0x09 | still unsupported + null | 0x0A | null + Regular Expr. | 0x0B | still unsupported + DB Pointer | 0x0C | still unsupported + JavaScript Code | 0x0D | still unsupported + Symbol | 0x0E | still unsupported + JavaScript Code | 0x0F | still unsupported + int32 | 0x10 | number_integer + Timestamp | 0x11 | still unsupported + 128-bit decimal float | 0x13 | still unsupported + Max Key | 0x7F | still unsupported + Min Key | 0xFF | still unsupported + + @warning The mapping is **incomplete**. The unsupported mappings + are indicated in the table above. + + @param[in] i an input in BSON format convertible to an input adapter + @param[in] strict whether to expect the input to be consumed until EOF + (true by default) + @param[in] allow_exceptions whether to throw exceptions in case of a + parse error (optional, true by default) + + @return deserialized JSON value; in case of a parse error and + @a allow_exceptions set to `false`, the return value will be + value_t::discarded. + + @throw parse_error.114 if an unsupported BSON record type is encountered + + @complexity Linear in the size of the input @a i. + + @liveexample{The example shows the deserialization of a byte vector in + BSON format to a JSON value.,from_bson} + + @sa http://bsonspec.org/spec.html + @sa see @ref to_bson(const basic_json&) for the analogous serialization + @sa see @ref from_cbor(InputType&&, const bool, const bool, const cbor_tag_handler_t) for the + related CBOR format + @sa see @ref from_msgpack(InputType&&, const bool, const bool) for + the related MessagePack format + @sa see @ref from_ubjson(InputType&&, const bool, const bool) for the + related UBJSON format + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_bson(InputType&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::forward(i)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + /*! + @copydoc from_bson(InputType&&, const bool, const bool) + */ + template + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json from_bson(IteratorType first, IteratorType last, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = detail::input_adapter(std::move(first), std::move(last)); + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + + template + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_bson(ptr, ptr + len)) + static basic_json from_bson(const T* ptr, std::size_t len, + const bool strict = true, + const bool allow_exceptions = true) + { + return from_bson(ptr, ptr + len, strict, allow_exceptions); + } + + JSON_HEDLEY_WARN_UNUSED_RESULT + JSON_HEDLEY_DEPRECATED_FOR(3.8.0, from_bson(ptr, ptr + len)) + static basic_json from_bson(detail::span_input_adapter&& i, + const bool strict = true, + const bool allow_exceptions = true) + { + basic_json result; + detail::json_sax_dom_parser sdp(result, allow_exceptions); + auto ia = i.get(); + // NOLINTNEXTLINE(hicpp-move-const-arg,performance-move-const-arg) + const bool res = binary_reader(std::move(ia)).sax_parse(input_format_t::bson, &sdp, strict); + return res ? result : basic_json(value_t::discarded); + } + /// @} + + ////////////////////////// + // JSON Pointer support // + ////////////////////////// + + /// @name JSON Pointer functions + /// @{ + + /*! + @brief access specified element via JSON Pointer + + Uses a JSON pointer to retrieve a reference to the respective JSON value. + No bound checking is performed. Similar to @ref operator[](const typename + object_t::key_type&), `null` values are created in arrays and objects if + necessary. + + In particular: + - If the JSON pointer points to an object key that does not exist, it + is created an filled with a `null` value before a reference to it + is returned. + - If the JSON pointer points to an array index that does not exist, it + is created an filled with a `null` value before a reference to it + is returned. All indices between the current maximum and the given + index are also filled with `null`. + - The special value `-` is treated as a synonym for the index past the + end. + + @param[in] ptr a JSON pointer + + @return reference to the element pointed to by @a ptr + + @complexity Constant. + + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.404 if the JSON pointer can not be resolved + + @liveexample{The behavior is shown in the example.,operatorjson_pointer} + + @since version 2.0.0 + */ + reference operator[](const json_pointer& ptr) + { + return ptr.get_unchecked(this); + } + + /*! + @brief access specified element via JSON Pointer + + Uses a JSON pointer to retrieve a reference to the respective JSON value. + No bound checking is performed. The function does not change the JSON + value; no `null` values are created. In particular, the special value + `-` yields an exception. + + @param[in] ptr JSON pointer to the desired element + + @return const reference to the element pointed to by @a ptr + + @complexity Constant. + + @throw parse_error.106 if an array index begins with '0' + @throw parse_error.109 if an array index was not a number + @throw out_of_range.402 if the array index '-' is used + @throw out_of_range.404 if the JSON pointer can not be resolved + + @liveexample{The behavior is shown in the example.,operatorjson_pointer_const} + + @since version 2.0.0 + */ + const_reference operator[](const json_pointer& ptr) const + { + return ptr.get_unchecked(this); + } + + /*! + @brief access specified element via JSON Pointer + + Returns a reference to the element at with specified JSON pointer @a ptr, + with bounds checking. + + @param[in] ptr JSON pointer to the desired element + + @return reference to the element pointed to by @a ptr + + @throw parse_error.106 if an array index in the passed JSON pointer @a ptr + begins with '0'. See example below. + + @throw parse_error.109 if an array index in the passed JSON pointer @a ptr + is not a number. See example below. + + @throw out_of_range.401 if an array index in the passed JSON pointer @a ptr + is out of range. See example below. + + @throw out_of_range.402 if the array index '-' is used in the passed JSON + pointer @a ptr. As `at` provides checked access (and no elements are + implicitly inserted), the index '-' is always invalid. See example below. + + @throw out_of_range.403 if the JSON pointer describes a key of an object + which cannot be found. See example below. + + @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved. + See example below. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Constant. + + @since version 2.0.0 + + @liveexample{The behavior is shown in the example.,at_json_pointer} + */ + reference at(const json_pointer& ptr) + { + return ptr.get_checked(this); + } + + /*! + @brief access specified element via JSON Pointer + + Returns a const reference to the element at with specified JSON pointer @a + ptr, with bounds checking. + + @param[in] ptr JSON pointer to the desired element + + @return reference to the element pointed to by @a ptr + + @throw parse_error.106 if an array index in the passed JSON pointer @a ptr + begins with '0'. See example below. + + @throw parse_error.109 if an array index in the passed JSON pointer @a ptr + is not a number. See example below. + + @throw out_of_range.401 if an array index in the passed JSON pointer @a ptr + is out of range. See example below. + + @throw out_of_range.402 if the array index '-' is used in the passed JSON + pointer @a ptr. As `at` provides checked access (and no elements are + implicitly inserted), the index '-' is always invalid. See example below. + + @throw out_of_range.403 if the JSON pointer describes a key of an object + which cannot be found. See example below. + + @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved. + See example below. + + @exceptionsafety Strong guarantee: if an exception is thrown, there are no + changes in the JSON value. + + @complexity Constant. + + @since version 2.0.0 + + @liveexample{The behavior is shown in the example.,at_json_pointer_const} + */ + const_reference at(const json_pointer& ptr) const + { + return ptr.get_checked(this); + } + + /*! + @brief return flattened JSON value + + The function creates a JSON object whose keys are JSON pointers (see [RFC + 6901](https://tools.ietf.org/html/rfc6901)) and whose values are all + primitive. The original JSON value can be restored using the @ref + unflatten() function. + + @return an object that maps JSON pointers to primitive values + + @note Empty objects and arrays are flattened to `null` and will not be + reconstructed correctly by the @ref unflatten() function. + + @complexity Linear in the size the JSON value. + + @liveexample{The following code shows how a JSON object is flattened to an + object whose keys consist of JSON pointers.,flatten} + + @sa see @ref unflatten() for the reverse function + + @since version 2.0.0 + */ + basic_json flatten() const + { + basic_json result(value_t::object); + json_pointer::flatten("", *this, result); + return result; + } + + /*! + @brief unflatten a previously flattened JSON value + + The function restores the arbitrary nesting of a JSON value that has been + flattened before using the @ref flatten() function. The JSON value must + meet certain constraints: + 1. The value must be an object. + 2. The keys must be JSON pointers (see + [RFC 6901](https://tools.ietf.org/html/rfc6901)) + 3. The mapped values must be primitive JSON types. + + @return the original JSON from a flattened version + + @note Empty objects and arrays are flattened by @ref flatten() to `null` + values and can not unflattened to their original type. Apart from + this example, for a JSON value `j`, the following is always true: + `j == j.flatten().unflatten()`. + + @complexity Linear in the size the JSON value. + + @throw type_error.314 if value is not an object + @throw type_error.315 if object values are not primitive + + @liveexample{The following code shows how a flattened JSON object is + unflattened into the original nested JSON object.,unflatten} + + @sa see @ref flatten() for the reverse function + + @since version 2.0.0 + */ + basic_json unflatten() const + { + return json_pointer::unflatten(*this); + } + + /// @} + + ////////////////////////// + // JSON Patch functions // + ////////////////////////// + + /// @name JSON Patch functions + /// @{ + + /*! + @brief applies a JSON patch + + [JSON Patch](http://jsonpatch.com) defines a JSON document structure for + expressing a sequence of operations to apply to a JSON) document. With + this function, a JSON Patch is applied to the current JSON value by + executing all operations from the patch. + + @param[in] json_patch JSON patch document + @return patched document + + @note The application of a patch is atomic: Either all operations succeed + and the patched document is returned or an exception is thrown. In + any case, the original value is not changed: the patch is applied + to a copy of the value. + + @throw parse_error.104 if the JSON patch does not consist of an array of + objects + + @throw parse_error.105 if the JSON patch is malformed (e.g., mandatory + attributes are missing); example: `"operation add must have member path"` + + @throw out_of_range.401 if an array index is out of range. + + @throw out_of_range.403 if a JSON pointer inside the patch could not be + resolved successfully in the current JSON value; example: `"key baz not + found"` + + @throw out_of_range.405 if JSON pointer has no parent ("add", "remove", + "move") + + @throw other_error.501 if "test" operation was unsuccessful + + @complexity Linear in the size of the JSON value and the length of the + JSON patch. As usually only a fraction of the JSON value is affected by + the patch, the complexity can usually be neglected. + + @liveexample{The following code shows how a JSON patch is applied to a + value.,patch} + + @sa see @ref diff -- create a JSON patch by comparing two JSON values + + @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902) + @sa [RFC 6901 (JSON Pointer)](https://tools.ietf.org/html/rfc6901) + + @since version 2.0.0 + */ + basic_json patch(const basic_json& json_patch) const + { + // make a working copy to apply the patch to + basic_json result = *this; + + // the valid JSON Patch operations + enum class patch_operations {add, remove, replace, move, copy, test, invalid}; + + const auto get_op = [](const std::string & op) + { + if (op == "add") + { + return patch_operations::add; + } + if (op == "remove") + { + return patch_operations::remove; + } + if (op == "replace") + { + return patch_operations::replace; + } + if (op == "move") + { + return patch_operations::move; + } + if (op == "copy") + { + return patch_operations::copy; + } + if (op == "test") + { + return patch_operations::test; + } + + return patch_operations::invalid; + }; + + // wrapper for "add" operation; add value at ptr + const auto operation_add = [&result](json_pointer & ptr, basic_json val) + { + // adding to the root of the target document means replacing it + if (ptr.empty()) + { + result = val; + return; + } + + // make sure the top element of the pointer exists + json_pointer top_pointer = ptr.top(); + if (top_pointer != ptr) + { + result.at(top_pointer); + } + + // get reference to parent of JSON pointer ptr + const auto last_path = ptr.back(); + ptr.pop_back(); + basic_json& parent = result[ptr]; + + switch (parent.m_type) + { + case value_t::null: + case value_t::object: + { + // use operator[] to add value + parent[last_path] = val; + break; + } + + case value_t::array: + { + if (last_path == "-") + { + // special case: append to back + parent.push_back(val); + } + else + { + const auto idx = json_pointer::array_index(last_path); + if (JSON_HEDLEY_UNLIKELY(idx > parent.size())) + { + // avoid undefined behavior + JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range", parent)); + } + + // default case: insert add offset + parent.insert(parent.begin() + static_cast(idx), val); + } + break; + } + + // if there exists a parent it cannot be primitive + case value_t::string: // LCOV_EXCL_LINE + case value_t::boolean: // LCOV_EXCL_LINE + case value_t::number_integer: // LCOV_EXCL_LINE + case value_t::number_unsigned: // LCOV_EXCL_LINE + case value_t::number_float: // LCOV_EXCL_LINE + case value_t::binary: // LCOV_EXCL_LINE + case value_t::discarded: // LCOV_EXCL_LINE + default: // LCOV_EXCL_LINE + JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE + } + }; + + // wrapper for "remove" operation; remove value at ptr + const auto operation_remove = [this, &result](json_pointer & ptr) + { + // get reference to parent of JSON pointer ptr + const auto last_path = ptr.back(); + ptr.pop_back(); + basic_json& parent = result.at(ptr); + + // remove child + if (parent.is_object()) + { + // perform range check + auto it = parent.find(last_path); + if (JSON_HEDLEY_LIKELY(it != parent.end())) + { + parent.erase(it); + } + else + { + JSON_THROW(out_of_range::create(403, "key '" + last_path + "' not found", *this)); + } + } + else if (parent.is_array()) + { + // note erase performs range check + parent.erase(json_pointer::array_index(last_path)); + } + }; + + // type check: top level value must be an array + if (JSON_HEDLEY_UNLIKELY(!json_patch.is_array())) + { + JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects", json_patch)); + } + + // iterate and apply the operations + for (const auto& val : json_patch) + { + // wrapper to get a value for an operation + const auto get_value = [&val](const std::string & op, + const std::string & member, + bool string_type) -> basic_json & + { + // find value + auto it = val.m_value.object->find(member); + + // context-sensitive error message + const auto error_msg = (op == "op") ? "operation" : "operation '" + op + "'"; + + // check if desired value is present + if (JSON_HEDLEY_UNLIKELY(it == val.m_value.object->end())) + { + // NOLINTNEXTLINE(performance-inefficient-string-concatenation) + JSON_THROW(parse_error::create(105, 0, error_msg + " must have member '" + member + "'", val)); + } + + // check if result is of type string + if (JSON_HEDLEY_UNLIKELY(string_type && !it->second.is_string())) + { + // NOLINTNEXTLINE(performance-inefficient-string-concatenation) + JSON_THROW(parse_error::create(105, 0, error_msg + " must have string member '" + member + "'", val)); + } + + // no error: return value + return it->second; + }; + + // type check: every element of the array must be an object + if (JSON_HEDLEY_UNLIKELY(!val.is_object())) + { + JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects", val)); + } + + // collect mandatory members + const auto op = get_value("op", "op", true).template get(); + const auto path = get_value(op, "path", true).template get(); + json_pointer ptr(path); + + switch (get_op(op)) + { + case patch_operations::add: + { + operation_add(ptr, get_value("add", "value", false)); + break; + } + + case patch_operations::remove: + { + operation_remove(ptr); + break; + } + + case patch_operations::replace: + { + // the "path" location must exist - use at() + result.at(ptr) = get_value("replace", "value", false); + break; + } + + case patch_operations::move: + { + const auto from_path = get_value("move", "from", true).template get(); + json_pointer from_ptr(from_path); + + // the "from" location must exist - use at() + basic_json v = result.at(from_ptr); + + // The move operation is functionally identical to a + // "remove" operation on the "from" location, followed + // immediately by an "add" operation at the target + // location with the value that was just removed. + operation_remove(from_ptr); + operation_add(ptr, v); + break; + } + + case patch_operations::copy: + { + const auto from_path = get_value("copy", "from", true).template get(); + const json_pointer from_ptr(from_path); + + // the "from" location must exist - use at() + basic_json v = result.at(from_ptr); + + // The copy is functionally identical to an "add" + // operation at the target location using the value + // specified in the "from" member. + operation_add(ptr, v); + break; + } + + case patch_operations::test: + { + bool success = false; + JSON_TRY + { + // check if "value" matches the one at "path" + // the "path" location must exist - use at() + success = (result.at(ptr) == get_value("test", "value", false)); + } + JSON_INTERNAL_CATCH (out_of_range&) + { + // ignore out of range errors: success remains false + } + + // throw an exception if test fails + if (JSON_HEDLEY_UNLIKELY(!success)) + { + JSON_THROW(other_error::create(501, "unsuccessful: " + val.dump(), val)); + } + + break; + } + + case patch_operations::invalid: + default: + { + // op must be "add", "remove", "replace", "move", "copy", or + // "test" + JSON_THROW(parse_error::create(105, 0, "operation value '" + op + "' is invalid", val)); + } + } + } + + return result; + } + + /*! + @brief creates a diff as a JSON patch + + Creates a [JSON Patch](http://jsonpatch.com) so that value @a source can + be changed into the value @a target by calling @ref patch function. + + @invariant For two JSON values @a source and @a target, the following code + yields always `true`: + @code {.cpp} + source.patch(diff(source, target)) == target; + @endcode + + @note Currently, only `remove`, `add`, and `replace` operations are + generated. + + @param[in] source JSON value to compare from + @param[in] target JSON value to compare against + @param[in] path helper value to create JSON pointers + + @return a JSON patch to convert the @a source to @a target + + @complexity Linear in the lengths of @a source and @a target. + + @liveexample{The following code shows how a JSON patch is created as a + diff for two JSON values.,diff} + + @sa see @ref patch -- apply a JSON patch + @sa see @ref merge_patch -- apply a JSON Merge Patch + + @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902) + + @since version 2.0.0 + */ + JSON_HEDLEY_WARN_UNUSED_RESULT + static basic_json diff(const basic_json& source, const basic_json& target, + const std::string& path = "") + { + // the patch + basic_json result(value_t::array); + + // if the values are the same, return empty patch + if (source == target) + { + return result; + } + + if (source.type() != target.type()) + { + // different types: replace value + result.push_back( + { + {"op", "replace"}, {"path", path}, {"value", target} + }); + return result; + } + + switch (source.type()) + { + case value_t::array: + { + // first pass: traverse common elements + std::size_t i = 0; + while (i < source.size() && i < target.size()) + { + // recursive call to compare array values at index i + auto temp_diff = diff(source[i], target[i], path + "/" + std::to_string(i)); + result.insert(result.end(), temp_diff.begin(), temp_diff.end()); + ++i; + } + + // i now reached the end of at least one array + // in a second pass, traverse the remaining elements + + // remove my remaining elements + const auto end_index = static_cast(result.size()); + while (i < source.size()) + { + // add operations in reverse order to avoid invalid + // indices + result.insert(result.begin() + end_index, object( + { + {"op", "remove"}, + {"path", path + "/" + std::to_string(i)} + })); + ++i; + } + + // add other remaining elements + while (i < target.size()) + { + result.push_back( + { + {"op", "add"}, + {"path", path + "/-"}, + {"value", target[i]} + }); + ++i; + } + + break; + } + + case value_t::object: + { + // first pass: traverse this object's elements + for (auto it = source.cbegin(); it != source.cend(); ++it) + { + // escape the key name to be used in a JSON patch + const auto path_key = path + "/" + detail::escape(it.key()); + + if (target.find(it.key()) != target.end()) + { + // recursive call to compare object values at key it + auto temp_diff = diff(it.value(), target[it.key()], path_key); + result.insert(result.end(), temp_diff.begin(), temp_diff.end()); + } + else + { + // found a key that is not in o -> remove it + result.push_back(object( + { + {"op", "remove"}, {"path", path_key} + })); + } + } + + // second pass: traverse other object's elements + for (auto it = target.cbegin(); it != target.cend(); ++it) + { + if (source.find(it.key()) == source.end()) + { + // found a key that is not in this -> add it + const auto path_key = path + "/" + detail::escape(it.key()); + result.push_back( + { + {"op", "add"}, {"path", path_key}, + {"value", it.value()} + }); + } + } + + break; + } + + case value_t::null: + case value_t::string: + case value_t::boolean: + case value_t::number_integer: + case value_t::number_unsigned: + case value_t::number_float: + case value_t::binary: + case value_t::discarded: + default: + { + // both primitive type: replace value + result.push_back( + { + {"op", "replace"}, {"path", path}, {"value", target} + }); + break; + } + } + + return result; + } + + /// @} + + //////////////////////////////// + // JSON Merge Patch functions // + //////////////////////////////// + + /// @name JSON Merge Patch functions + /// @{ + + /*! + @brief applies a JSON Merge Patch + + The merge patch format is primarily intended for use with the HTTP PATCH + method as a means of describing a set of modifications to a target + resource's content. This function applies a merge patch to the current + JSON value. + + The function implements the following algorithm from Section 2 of + [RFC 7396 (JSON Merge Patch)](https://tools.ietf.org/html/rfc7396): + + ``` + define MergePatch(Target, Patch): + if Patch is an Object: + if Target is not an Object: + Target = {} // Ignore the contents and set it to an empty Object + for each Name/Value pair in Patch: + if Value is null: + if Name exists in Target: + remove the Name/Value pair from Target + else: + Target[Name] = MergePatch(Target[Name], Value) + return Target + else: + return Patch + ``` + + Thereby, `Target` is the current object; that is, the patch is applied to + the current value. + + @param[in] apply_patch the patch to apply + + @complexity Linear in the lengths of @a patch. + + @liveexample{The following code shows how a JSON Merge Patch is applied to + a JSON document.,merge_patch} + + @sa see @ref patch -- apply a JSON patch + @sa [RFC 7396 (JSON Merge Patch)](https://tools.ietf.org/html/rfc7396) + + @since version 3.0.0 + */ + void merge_patch(const basic_json& apply_patch) + { + if (apply_patch.is_object()) + { + if (!is_object()) + { + *this = object(); + } + for (auto it = apply_patch.begin(); it != apply_patch.end(); ++it) + { + if (it.value().is_null()) + { + erase(it.key()); + } + else + { + operator[](it.key()).merge_patch(it.value()); + } + } + } + else + { + *this = apply_patch; + } + } + + /// @} +}; + +/*! +@brief user-defined to_string function for JSON values + +This function implements a user-defined to_string for JSON objects. + +@param[in] j a JSON object +@return a std::string object +*/ + +NLOHMANN_BASIC_JSON_TPL_DECLARATION +std::string to_string(const NLOHMANN_BASIC_JSON_TPL& j) +{ + return j.dump(); +} +} // namespace nlohmann + +/////////////////////// +// nonmember support // +/////////////////////// + +// specialization of std::swap, and std::hash +namespace std +{ + +/// hash value for JSON objects +template<> +struct hash +{ + /*! + @brief return a hash value for a JSON object + + @since version 1.0.0 + */ + std::size_t operator()(const nlohmann::json& j) const + { + return nlohmann::detail::hash(j); + } +}; + +/// specialization for std::less +/// @note: do not remove the space after '<', +/// see https://github.com/nlohmann/json/pull/679 +template<> +struct less<::nlohmann::detail::value_t> +{ + /*! + @brief compare two value_t enum values + @since version 3.0.0 + */ + bool operator()(nlohmann::detail::value_t lhs, + nlohmann::detail::value_t rhs) const noexcept + { + return nlohmann::detail::operator<(lhs, rhs); + } +}; + +// C++20 prohibit function specialization in the std namespace. +#ifndef JSON_HAS_CPP_20 + +/*! +@brief exchanges the values of two JSON objects + +@since version 1.0.0 +*/ +template<> +inline void swap(nlohmann::json& j1, nlohmann::json& j2) noexcept( // NOLINT(readability-inconsistent-declaration-parameter-name) + is_nothrow_move_constructible::value&& // NOLINT(misc-redundant-expression) + is_nothrow_move_assignable::value + ) +{ + j1.swap(j2); +} + +#endif + +} // namespace std + +/*! +@brief user-defined string literal for JSON values + +This operator implements a user-defined string literal for JSON objects. It +can be used by adding `"_json"` to a string literal and returns a JSON object +if no parse error occurred. + +@param[in] s a string representation of a JSON object +@param[in] n the length of string @a s +@return a JSON object + +@since version 1.0.0 +*/ +JSON_HEDLEY_NON_NULL(1) +inline nlohmann::json operator "" _json(const char* s, std::size_t n) +{ + return nlohmann::json::parse(s, s + n); +} + +/*! +@brief user-defined string literal for JSON pointer + +This operator implements a user-defined string literal for JSON Pointers. It +can be used by adding `"_json_pointer"` to a string literal and returns a JSON pointer +object if no parse error occurred. + +@param[in] s a string representation of a JSON Pointer +@param[in] n the length of string @a s +@return a JSON pointer object + +@since version 2.0.0 +*/ +JSON_HEDLEY_NON_NULL(1) +inline nlohmann::json::json_pointer operator "" _json_pointer(const char* s, std::size_t n) +{ + return nlohmann::json::json_pointer(std::string(s, n)); +} + +// #include + + +// restore clang diagnostic settings +#if defined(__clang__) + #pragma clang diagnostic pop +#endif + +// clean up +#undef JSON_ASSERT +#undef JSON_INTERNAL_CATCH +#undef JSON_CATCH +#undef JSON_THROW +#undef JSON_TRY +#undef JSON_PRIVATE_UNLESS_TESTED +#undef JSON_HAS_CPP_11 +#undef JSON_HAS_CPP_14 +#undef JSON_HAS_CPP_17 +#undef JSON_HAS_CPP_20 +#undef NLOHMANN_BASIC_JSON_TPL_DECLARATION +#undef NLOHMANN_BASIC_JSON_TPL +#undef JSON_EXPLICIT + +// #include + + +#undef JSON_HEDLEY_ALWAYS_INLINE +#undef JSON_HEDLEY_ARM_VERSION +#undef JSON_HEDLEY_ARM_VERSION_CHECK +#undef JSON_HEDLEY_ARRAY_PARAM +#undef JSON_HEDLEY_ASSUME +#undef JSON_HEDLEY_BEGIN_C_DECLS +#undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_BUILTIN +#undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_CLANG_HAS_EXTENSION +#undef JSON_HEDLEY_CLANG_HAS_FEATURE +#undef JSON_HEDLEY_CLANG_HAS_WARNING +#undef JSON_HEDLEY_COMPCERT_VERSION +#undef JSON_HEDLEY_COMPCERT_VERSION_CHECK +#undef JSON_HEDLEY_CONCAT +#undef JSON_HEDLEY_CONCAT3 +#undef JSON_HEDLEY_CONCAT3_EX +#undef JSON_HEDLEY_CONCAT_EX +#undef JSON_HEDLEY_CONST +#undef JSON_HEDLEY_CONSTEXPR +#undef JSON_HEDLEY_CONST_CAST +#undef JSON_HEDLEY_CPP_CAST +#undef JSON_HEDLEY_CRAY_VERSION +#undef JSON_HEDLEY_CRAY_VERSION_CHECK +#undef JSON_HEDLEY_C_DECL +#undef JSON_HEDLEY_DEPRECATED +#undef JSON_HEDLEY_DEPRECATED_FOR +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CPP98_COMPAT_WRAP_ +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_CPP_ATTRIBUTES +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS +#undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNUSED_FUNCTION +#undef JSON_HEDLEY_DIAGNOSTIC_POP +#undef JSON_HEDLEY_DIAGNOSTIC_PUSH +#undef JSON_HEDLEY_DMC_VERSION +#undef JSON_HEDLEY_DMC_VERSION_CHECK +#undef JSON_HEDLEY_EMPTY_BASES +#undef JSON_HEDLEY_EMSCRIPTEN_VERSION +#undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK +#undef JSON_HEDLEY_END_C_DECLS +#undef JSON_HEDLEY_FLAGS +#undef JSON_HEDLEY_FLAGS_CAST +#undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_BUILTIN +#undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_GCC_HAS_EXTENSION +#undef JSON_HEDLEY_GCC_HAS_FEATURE +#undef JSON_HEDLEY_GCC_HAS_WARNING +#undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK +#undef JSON_HEDLEY_GCC_VERSION +#undef JSON_HEDLEY_GCC_VERSION_CHECK +#undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_BUILTIN +#undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_GNUC_HAS_EXTENSION +#undef JSON_HEDLEY_GNUC_HAS_FEATURE +#undef JSON_HEDLEY_GNUC_HAS_WARNING +#undef JSON_HEDLEY_GNUC_VERSION +#undef JSON_HEDLEY_GNUC_VERSION_CHECK +#undef JSON_HEDLEY_HAS_ATTRIBUTE +#undef JSON_HEDLEY_HAS_BUILTIN +#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE +#undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE_NS +#undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE +#undef JSON_HEDLEY_HAS_EXTENSION +#undef JSON_HEDLEY_HAS_FEATURE +#undef JSON_HEDLEY_HAS_WARNING +#undef JSON_HEDLEY_IAR_VERSION +#undef JSON_HEDLEY_IAR_VERSION_CHECK +#undef JSON_HEDLEY_IBM_VERSION +#undef JSON_HEDLEY_IBM_VERSION_CHECK +#undef JSON_HEDLEY_IMPORT +#undef JSON_HEDLEY_INLINE +#undef JSON_HEDLEY_INTEL_CL_VERSION +#undef JSON_HEDLEY_INTEL_CL_VERSION_CHECK +#undef JSON_HEDLEY_INTEL_VERSION +#undef JSON_HEDLEY_INTEL_VERSION_CHECK +#undef JSON_HEDLEY_IS_CONSTANT +#undef JSON_HEDLEY_IS_CONSTEXPR_ +#undef JSON_HEDLEY_LIKELY +#undef JSON_HEDLEY_MALLOC +#undef JSON_HEDLEY_MCST_LCC_VERSION +#undef JSON_HEDLEY_MCST_LCC_VERSION_CHECK +#undef JSON_HEDLEY_MESSAGE +#undef JSON_HEDLEY_MSVC_VERSION +#undef JSON_HEDLEY_MSVC_VERSION_CHECK +#undef JSON_HEDLEY_NEVER_INLINE +#undef JSON_HEDLEY_NON_NULL +#undef JSON_HEDLEY_NO_ESCAPE +#undef JSON_HEDLEY_NO_RETURN +#undef JSON_HEDLEY_NO_THROW +#undef JSON_HEDLEY_NULL +#undef JSON_HEDLEY_PELLES_VERSION +#undef JSON_HEDLEY_PELLES_VERSION_CHECK +#undef JSON_HEDLEY_PGI_VERSION +#undef JSON_HEDLEY_PGI_VERSION_CHECK +#undef JSON_HEDLEY_PREDICT +#undef JSON_HEDLEY_PRINTF_FORMAT +#undef JSON_HEDLEY_PRIVATE +#undef JSON_HEDLEY_PUBLIC +#undef JSON_HEDLEY_PURE +#undef JSON_HEDLEY_REINTERPRET_CAST +#undef JSON_HEDLEY_REQUIRE +#undef JSON_HEDLEY_REQUIRE_CONSTEXPR +#undef JSON_HEDLEY_REQUIRE_MSG +#undef JSON_HEDLEY_RESTRICT +#undef JSON_HEDLEY_RETURNS_NON_NULL +#undef JSON_HEDLEY_SENTINEL +#undef JSON_HEDLEY_STATIC_ASSERT +#undef JSON_HEDLEY_STATIC_CAST +#undef JSON_HEDLEY_STRINGIFY +#undef JSON_HEDLEY_STRINGIFY_EX +#undef JSON_HEDLEY_SUNPRO_VERSION +#undef JSON_HEDLEY_SUNPRO_VERSION_CHECK +#undef JSON_HEDLEY_TINYC_VERSION +#undef JSON_HEDLEY_TINYC_VERSION_CHECK +#undef JSON_HEDLEY_TI_ARMCL_VERSION +#undef JSON_HEDLEY_TI_ARMCL_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL2000_VERSION +#undef JSON_HEDLEY_TI_CL2000_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL430_VERSION +#undef JSON_HEDLEY_TI_CL430_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL6X_VERSION +#undef JSON_HEDLEY_TI_CL6X_VERSION_CHECK +#undef JSON_HEDLEY_TI_CL7X_VERSION +#undef JSON_HEDLEY_TI_CL7X_VERSION_CHECK +#undef JSON_HEDLEY_TI_CLPRU_VERSION +#undef JSON_HEDLEY_TI_CLPRU_VERSION_CHECK +#undef JSON_HEDLEY_TI_VERSION +#undef JSON_HEDLEY_TI_VERSION_CHECK +#undef JSON_HEDLEY_UNAVAILABLE +#undef JSON_HEDLEY_UNLIKELY +#undef JSON_HEDLEY_UNPREDICTABLE +#undef JSON_HEDLEY_UNREACHABLE +#undef JSON_HEDLEY_UNREACHABLE_RETURN +#undef JSON_HEDLEY_VERSION +#undef JSON_HEDLEY_VERSION_DECODE_MAJOR +#undef JSON_HEDLEY_VERSION_DECODE_MINOR +#undef JSON_HEDLEY_VERSION_DECODE_REVISION +#undef JSON_HEDLEY_VERSION_ENCODE +#undef JSON_HEDLEY_WARNING +#undef JSON_HEDLEY_WARN_UNUSED_RESULT +#undef JSON_HEDLEY_WARN_UNUSED_RESULT_MSG +#undef JSON_HEDLEY_FALL_THROUGH + + + +#endif // INCLUDE_NLOHMANN_JSON_HPP_ From 845f62e95a4f11af70188773dee1cc1d2f5d1f2a Mon Sep 17 00:00:00 2001 From: Adam Wieckowski Date: Wed, 13 Oct 2021 16:33:11 +0200 Subject: [PATCH 2/2] removed obsolete ubuntu-16.04 build --- .github/workflows/Build.yml | 1 - 1 file changed, 1 deletion(-) diff --git a/.github/workflows/Build.yml b/.github/workflows/Build.yml index aa4f4e288..47aa93d68 100644 --- a/.github/workflows/Build.yml +++ b/.github/workflows/Build.yml @@ -13,7 +13,6 @@ jobs: strategy: matrix: include: - - os: ubuntu-16.04 - os: ubuntu-18.04 - os: ubuntu-20.04 - os: macos-10.15