On Thu, 7 Nov 2013, Uros Bizjak wrote:
> Please note that following code form fenv.c won't generate overflow
> exception on x87:
>
> if (excepts & FP_EX_OVERFLOW)
> {
> volatile float max = __FLT_MAX__;
> r = max * max;
> }r being volatile is intended to ensure that the result does get stored back to memory, and so in particular that a result computed with excess precision gets converted back to float and the exception is raised. -- Joseph S. Myers jos...@codesourcery.com
