mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 13:31:13 +00:00
f818afdd3b
This patch is always using the corresponding GCC builtin for copysignf, copysign, and is using the builtin for copysignl, copysignf128 if the USE_FUNCTION_BUILTIN macros are defined to one in math-use-builtins.h. Altough the long double version is enabled by default we still need the macro and the alternative implementation as the _Float128 version of the builtin is not available with all supported GCC versions. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
36 lines
969 B
C
36 lines
969 B
C
/* s_copysignf.c -- float version of s_copysign.c.
|
|
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
|
|
*/
|
|
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
#if defined (LIBM_SCCS) && ! defined (lint)
|
|
static char rcsid[] = "$NetBSD: s_copysignf.c,v 1.4 1995/05/10 20:46:59 jtc Exp $";
|
|
#endif
|
|
|
|
/*
|
|
* copysignf(float x, float y)
|
|
* copysignf(x,y) returns a value with the magnitude of x and
|
|
* with the sign bit of y.
|
|
*/
|
|
|
|
#define NO_MATH_REDIRECT
|
|
#include <math.h>
|
|
#include <libm-alias-float.h>
|
|
|
|
float
|
|
__copysignf (float x, float y)
|
|
{
|
|
return __builtin_copysignf (x, y);
|
|
}
|
|
libm_alias_float (__copysign, copysign)
|