Re: msvcrt: fix _copysign(1., -0.) error

[Zheng Chen]

Hi Piotr,

Thank you very much for pointing out the problems.

And about

float CDECL MSVCRT__copysignf( float num, float sign )
> > {
> > - /* FIXME: Behaviour for Nan/Inf? */
> > - if (sign < 0.0)
> > -
> >    return num < 0.0 ? num : -num;
> > - return num < 0.0 ? -num : num;
> > - /* FIXME: Behaviour for signbit(NAN) is different in Linux and
> > -
> > *        Windows, where Windows gives a zero for -NAN
> > -
> > */
> > - if (signbit(sign))
> > -
> >    return signbit(num) ? num : -num;
> > - return signbit(num) ? -num : num;
>
> It doesn't make sense to add this comment and remove it in next patch. I
> would also prefer if signbit fallback implementation is changed in this
> patch.

I removed the comments now because I thought this is already fixed... I've
combined the changes and sent two patches.

Thanks again :)

Regards,
Zheng