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Re: [PATCH]: Expand finite() as inline i386 asm
> On Fri, 26 Jan 2007, Jan Hubicka wrote:
>
> > I am not too faimilar with implementation of these predicates, but I
> > will take a look. The problem with FPclassify is that the return value
> > constants are libc dependent?
>
> Yes. For the rest, it should be possible to have a type-generic
> __builtin_isfoo that is always expanded inline such that
>
> #define isfoo(x) (__builtin_isfoo(x))
>
> is a correct definition of the standard macro.
Similarly I guess we can also have
#define fpclassify(x) (__builtin_fpclassify(x,retval1,retval2,retval3,retval4...)
and require the retvals to be compile time constants.
Honza
>
> --
> Joseph S. Myers
> joseph@codesourcery.com