This is a single header file C++ library that provides IEEE 754 floating point types. Example usage:

#include <iostream>
#include "ieee754_types.hpp"

int main() {
  IEEE_754::_2008::Binary<32> x = 1.0;
  IEEE_754::_2008::Binary<64> y = 2.0;

  std::cout << x + y << std::endl;

  // Compile time error if the requested type doesn't exist in the system.
  // IEEE_754::_2008::Binary<16> z;
}

The type provided by this library IEEE_754_2008_Binary<n> is guaranteed to be IEEE 754 floating point, and it won't compile if the requested type is not available in the system.

For more details, please refer to this blog article IEEE 754 Floating Point Type in C++ .