Universe's fastest integer to ASCII conversion. C++11 is supported.

i2a.h - programming interface, header file for c version
i2a.c - source file for the c version
i2a.hpp - C++ version header file

Out-of-source build with CMake is recommended.

mkdir build
cd build
cmake ..
cd ..
cmake --build ./build --config Release
./test

• If the inline C++ version is required, the performance will be improved by about 100%
• The header file is separated from the source file, without too much inlining, preventing slow compilation
• test

• See C++ version for detailshttps://github.com/asciphx/Nod/blob/main/fc/include/hpp/i2a.hpp

Prediction, comprehensive performance comparison with SSE is roughly as follows