ByteRanger

This smart object after create converts data from bytes to variables checked by template deductions and fill it with proper destination size of variable.

Written by Piotr K. (dajmosster@gmail.com)

piotrq.eu

Required C++ version: 17

GCC version: gcc (GCC) 10.3.1 20210422

Compiled and tested on: Linux Fedora 32

Example program

 std::vector<uint8_t> bytesVector = {
                                    255, // will be save in uint8_t var_one_byte
                                    255, 255, // will be save in uint16_t var_two_bytes
                                    0, 0, 0, 1, // will be save in uint32_t var_four_bytes 
                                    255, 255, 255, 255 // will be save in uint32_t var_four_bytes2
                                    };

uint8_t var_one_byte = 0;
uint16_t var_two_bytes = 0;
uint32_t var_four_bytes = 0;
uint32_t var_four_bytes2 = 0;

ByteRanger converted_data{bytesVector, var_one_byte, var_two_bytes, var_four_bytes, var_four_bytes2};

std::cout << "\n";
std::cout << "Bytes data:\n";
for (const auto& byte : bytesVector) {
    std::cout << static_cast<int>(byte) << ", ";
}
std::cout << "\n\n";
std::cout << "Args incjeted:" << converted_data.getArgsCount() << " | "
          << "Bytes given: " << converted_data.getBytesCount() << "\n";
std::cout << "\n";
std::cout << "Types deducted, variables rearanged and interpreted as: \n";
std::cout << "uint8_t " << static_cast<int>(var_one_byte) << "\n"
          << "uint16_t " << var_two_bytes << "\n"
          << "uint32_t " << var_four_bytes << "\n"
          << "uint32_t " << var_four_bytes2 << 
          std::endl;

auto [new_var, new_var2, new_var3, new_var4] = converted_data.getConstReferences();
std::cout << static_cast<int>(new_var) << new_var2 << new_var3 << new_var4 << "\n";

std::cout << "\n";

Example output

Bytes data:
255, 255, 255, 0, 0, 0, 1, 255, 255, 255, 255, 

Args incjeted:4 | Bytes given: 11

Types deducted, variables rearanged and interpreted as: 
uint8_t 255
uint16_t 65535
uint32_t 1
uint32_t 4294967295

How to build test file with examples

mkdir build
cd build
cmake ..
make -j4