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* sysdeps/alpha/fpu/bits/mathinline.h: Honor

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__LIBC_INTERNAL_MATH_INLINES.  Implement __signbitf, __signbit.
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Richard Henderson 2003-06-24 16:33:49 +00:00
parent 1bb08f1582
commit 981e63c822
1 changed files with 15 additions and 1 deletions
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16
sysdeps/alpha/fpu/bits/mathinline.h
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@ -58,7 +58,8 @@
!isunordered(__x, __y) && __x != __y; }))
#endif /* ISO C99 */
#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
#if (!defined __NO_MATH_INLINES || defined __LIBC_INTERNAL_MATH_INLINES) \
&& defined __OPTIMIZE__
#define __inline_copysign(NAME, TYPE) \
__MATH_INLINE TYPE \
@ -176,6 +177,19 @@ __MATH_INLINE double fdim (double __x, double __y) __THROW
return __x < __y ? 0.0 : __x - __y;
}
/* Test for negative number. Used in the signbit() macro. */
__MATH_INLINE int __signbitf (float __x) __THROW
{
__extension__ union { float __f; int __i; } __u = { __f: __x };
return __u.__i < 0;
}
__MATH_INLINE int __signbit (double __x) __THROW
{
__extension__ union { double __d; long __i; } __u = { __d: __x };
return __u.__i < 0;
}
#endif /* C99 */
#endif /* __NO_MATH_INLINES */