Float-point code is from compiler_builtins = "0.1.87" and the code has been rewrite so that make it work in a constant context.
If there is any inconsistent behavior, please open an issues.
features:
* no_std
* const_trait_impl
* const_mut_refs
work in stable:
const fn const_f32_add(a: f32, b: f32) -> f32 {
SoftF32(a).add(SoftF32(b)).to_f32()
}
with const_trait_impl usage:
const fn const_f32_add(a: f32, b: f32) -> f32 {
(SoftF32(a) + SoftF32(b)).to_f32()
}
with const_mut_refs usage:
const fn const_f32_add(a: f32, b: f32) -> f32 {
let mut x = SoftF32(a);
x += SoftF32(b);
x.to_f32()
}