svn commit: r253215 - head/lib/msun/src

[Tijl Coosemans]

On 2013-07-11 21:36, David Chisnall wrote:
> On 11 Jul 2013, at 19:52, Tijl Coosemans <tijl at coosemans.org> wrote:
>>> @@ -227,8 +250,6 @@ double	expm1(double);
>>> double	fma(double, double, double);
>>> double	hypot(double, double);
>>> int	ilogb(double) __pure2;
>>> -int	(isinf)(double) __pure2;
>>> -int	(isnan)(double) __pure2;
>>
>> I think they should stay for the C90 case.
> 
> That would completely defeat the point of this entire exercise and be
> redundant unless we aim to support a compiler that only supports C90
> and no GNU extensions, in which case you'll hit errors in cdefs.h,
> long before you get to this point in an include.

isnan(double) is part of SUSv2. It should be visible when compiling with
-D_XOPEN_SOURCE=500. I think you need something like this:

#if (__BSD_VISIBLE || __XSI_VISIBLE <= 500) && __ISO_C_VISIBLE < 1999
int	isinf(double) __pure2;
int	isnan(double) __pure2;
#endif

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