Re: [PATCH 02/15] msvcr120: Implement more C99 math functions.

[Alexandre Julliard]

Martin Storsjo <martin(a)martin.st> writes:
> Implement the *rint, trunc, *round, log2, exp2 and cbrt
> function families.
>
> These are directly passed on to the corresponding host
> libc functions.

You can't do that, there's no guarantee that the host has these
functions.

-- 
Alexandre Julliard
julliard(a)winehq.org

[PATCH 02/15] msvcr120: Implement more C99 math functions.

[Martin Storsjö]

On Tue, 2 Dec 2014, Alexandre Julliard wrote:
> Martin Storsjo <martin(a)martin.st> writes:
> > Implement the *rint, trunc, *round, log2, exp2 and cbrt
> > function families.
> >
> > These are directly passed on to the corresponding host
> > libc functions.
>
> You can't do that, there's no guarantee that the host has these
> functions.

Ok, so I should try to detect whether the host libc has got the C99 
functions, and try to emulate them using other (C90) functions otherwise.

I did notice that msvcrt already uses sinhf unconditionally, and this is 
also a function only available since C99.

// Martin