alt Hacker News> gcc, however, always defines FLT_ROUNDS to 1
Well, considering that gcc doesn't support the FENV_ACCESS pragma, and as such all fesetround calls are always UB, it is valid for it to act as if the rounding mode never changes from the default :)
> gcc, however, always defines FLT_ROUNDS to 1
Well, considering that gcc doesn't support the FENV_ACCESS pragma, and as such all fesetround calls are always UB, it is valid for it to act as if the rounding mode never changes from the default :)
Well, it is not ok to not support FENV_ACCESS though.