NaN fixes in pow, powf, modf, modff

[Corinna Vinschen]

On Mar 25 17:18, Keith Packard via Newlib wrote:
> The first patch makes modf set *iptr to qnan when provided an snan
> parameter, which wasn't happening on ARM softfp because GCC elided the
> * 1.0 operation.
> 
> The second patch cleans up modf/modff by not re-converting the float
> to bits before extracting the sign bit.
> 
> The third patch makes pow return qnan instead of 1.0 when the
> parameter is snan.
> 
> These functions now match glibc for all of my tests, which were
> derived from the IEEE requirements.
> 

Pushed.


Thanks,
Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
Red Hat
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