ankerl::nanobench ankerl::nanobench is a platform independent microbenchmarking library for C++11/14/17/20. #define ANKERL_NANOBENCH_IMPLEMENT #include int main() { double d = 1.0; ankerl::nanobench::Bench().run("some double ops", [&] { d += 1.0 / d; if (d > 5.0)