mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/* s_copysignl.c -- long double version of s_copysign.c.
|
|
* Conversion to long double by Ulrich Drepper,
|
|
* Cygnus Support, drepper@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: $";
|
|
#endif
|
|
|
|
/*
|
|
* copysignl(long double x, long double y)
|
|
* copysignl(x,y) returns a value with the magnitude of x and
|
|
* with the sign bit of y.
|
|
*/
|
|
|
|
#include "math.h"
|
|
#include "math_private.h"
|
|
|
|
#ifdef __STDC__
|
|
long double __copysignl(long double x, long double y)
|
|
#else
|
|
long double __copysignl(x,y)
|
|
long double x,y;
|
|
#endif
|
|
{
|
|
u_int32_t es1,es2;
|
|
GET_LDOUBLE_EXP(es1,x);
|
|
GET_LDOUBLE_EXP(es2,y);
|
|
SET_LDOUBLE_EXP(x,(es1&0x7fff)|(es2&0x8000));
|
|
return x;
|
|
}
|
|
weak_alias (__copysignl, copysignl)
|