Fixed-size floating point types

Question

In the stdint.h (C99), boost/cstdint.hpp, and cstdint (C++0x) headers there is, among others, the type int32_t.

Are there similar fixed-size floating point types? Something like float32_t?

Answer 1

IEEE 754-compliant fixed-precision floating point numbers were introduced in C++23.

Here's how to instantiate a 64-bit float:

#include <stdfloat>
int main()
{
    std::float64_t f = 0.1f64;
}

The implementation proposal can be found here