Work In Progress.
Code for working with arbitrary precision numbers. CMake project includes the tests executable, bigmath static library and two benchmarks (one contains x86-64 hand-written assembly routines, another uses compiler builtins).
Benchmarks require Google Benchmark library installed.
cmake -DCMAKE_BUILD_TYPE=Release -B build .
cd build && make
./tests # run tests
./benchmark_asm_x86_64 # run x86-64 version (google benchmark)
./benchmark_builtin_int128 # run builtin version (google benchmark)