Re: [PATCH 4/5] msvcr120: Don't set errno in expm1.

[Piotr Caban]

On 07/18/17 06:33, Alex Henrie wrote:
> @@ -2421,7 +2421,6 @@ double CDECL MSVCR120_expm1(double x)
>   #else
>       double ret = exp(x) - 1;
>   #endif
> - if (!isfinite(ret)) *MSVCRT__errno() = MSVCRT_ERANGE;
>  return ret;
> }

The function behaves differently depending on the reason of overflow. It 
doesn't set ERANGE errno if x == INFINITY (as your tests show). But it 
does set it when e.g. x == 10e100.

Thanks,
Piotr