refactored refl-cpp and (de-)serialiser to be an optional dependency

* fixed some implicit conversion warnings
* suppressed clang and gcc warnings for external dependencies

N.B. GR4 uses now it's own mini reflection library and yaml-(de-)serialiser -> perhaps this could be eventually upstreamed as well.

Signed-off-by: Ralph J. Steinhagen <r.steinhagen@gsi.de>

bench/bm_pmt_dict_pack_unpack.cpp

@@ -2,10 +2,24 @@
 #include <iostream>
 #include <string>
 
+#if defined(__clang__) || defined(__GNUC__)
+#pragma GCC diagnostic push // ignore warning of external libraries that from this lib-context we do not have any control over
+#pragma GCC diagnostic ignored "-Wall"
+#pragma GCC diagnostic ignored "-Wold-style-cast"
+#pragma GCC diagnostic ignored "-Wimplicit-int-float-conversion"
+#ifndef __clang__ // only for GCC, not Clang
+#pragma GCC diagnostic ignored "-Wuseless-cast"
+#endif
+#endif
+
 #include "CLI/App.hpp"
 #include "CLI/Config.hpp"
 #include "CLI/Formatter.hpp"
 
+#if defined(__clang__) || defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
+
 #include <pmtv/pmt.hpp>
 #include <pmtv/format.hpp>
 
@@ -74,7 +88,7 @@ int main(int argc, char* argv[])
         auto valid = run_test(samples, items);
 
         auto t2 = std::chrono::steady_clock::now();
-        auto time = 1e-9 * static_cast<long double>(std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count());
+        auto time = static_cast<long double>(1e-9) * static_cast<long double>(std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count());
 
         std::cout << "[PROFILE_TIME]" << time << "[PROFILE_TIME]" << std::endl;
         std::cout << "[PROFILE_VALID]" << valid << "[PROFILE_VALID]" << std::endl;

bench/bm_pmt_dict_ref.cpp

@@ -2,10 +2,24 @@
 #include <iostream>
 #include <string>
 
+#if defined(__clang__) || defined(__GNUC__)
+#pragma GCC diagnostic push // ignore warning of external libraries that from this lib-context we do not have any control over
+#pragma GCC diagnostic ignored "-Wall"
+#pragma GCC diagnostic ignored "-Wold-style-cast"
+#pragma GCC diagnostic ignored "-Wimplicit-int-float-conversion"
+#ifndef __clang__ // only for GCC, not Clang
+#pragma GCC diagnostic ignored "-Wuseless-cast"
+#endif
+#endif
+
 #include "CLI/App.hpp"
 #include "CLI/Config.hpp"
 #include "CLI/Formatter.hpp"
 
+#if defined(__clang__) || defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
+
 #include <pmtv/pmt.hpp>
 #include <pmtv/format.hpp>
 
@@ -66,7 +80,7 @@ int main(int argc, char* argv[])
         auto valid = run_test(samples, d, index);
 
         auto t2 = std::chrono::steady_clock::now();
-        auto time = 1e-9 * static_cast<long double>(std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count());
+        auto time = static_cast<long double>(1e-9) * static_cast<long double>(std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count());
 
         std::cout << "[PROFILE_TIME]" << time << "[PROFILE_TIME]" << std::endl;
         std::cout << "[PROFILE_VALID]" << valid << "[PROFILE_VALID]" << std::endl;

bench/bm_pmt_serialize_uvec.cpp

@@ -1,11 +1,26 @@
 #include <chrono>
 #include <iostream>
 
+#if defined(__clang__) || defined(__GNUC__)
+#pragma GCC diagnostic push // ignore warning of external libraries that from this lib-context we do not have any control over
+#pragma GCC diagnostic ignored "-Wall"
+#pragma GCC diagnostic ignored "-Wold-style-cast"
+#pragma GCC diagnostic ignored "-Wimplicit-int-float-conversion"
+#ifndef __clang__ // only for GCC, not Clang
+#pragma GCC diagnostic ignored "-Wuseless-cast"
+#endif
+#endif
+
 #include "CLI/App.hpp"
 #include "CLI/Config.hpp"
 #include "CLI/Formatter.hpp"
 
+#if defined(__clang__) || defined(__GNUC__)
+#pragma GCC diagnostic pop
+#endif
+
 #include <pmtv/pmt.hpp>
+#include <pmtv/serialiser.hpp>
 
 using namespace pmtv;
 
@@ -49,7 +64,7 @@ int main(int argc, char* argv[])
         auto valid = run_test(samples, data);
 
         auto t2 = std::chrono::steady_clock::now();
-        auto time = 1e-9 * static_cast<long double>(std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count());
+        auto time = static_cast<long double>(1e-9) * static_cast<long double>(std::chrono::duration_cast<std::chrono::nanoseconds>(t2 - t1).count());
 
         std::cout << "[PROFILE_TIME]" << time << "[PROFILE_TIME]" << std::endl;
         std::cout << "[PROFILE_VALID]" << valid << "[PROFILE_VALID]" << std::endl;

include/pmtv/meson.build

@@ -3,6 +3,7 @@ files = [
     'pmt.hpp',
     'rva_variant.hpp',
     'type_helpers.hpp',
+    'serialiser.hpp',
     'version.hpp'
 ]