glibc/sysdeps/ieee754/ldbl-128/s_copysignl.c
Ulrich Drepper abfbdde177 Update.
1999-07-14 00:54:57 +00:00

44 lines
1.1 KiB
C

/* s_copysignl.c -- long double version of s_copysign.c.
* Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
*/
/*
* ====================================================
* 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_int64_t hx,hy;
GET_LDOUBLE_MSW64(hx,x);
GET_LDOUBLE_MSW64(hy,y);
SET_LDOUBLE_MSW64(x,(hx&0x7fffffffffffffffULL)
|(hy&0x8000000000000000ULL));
return x;
}
weak_alias (__copysignl, copysignl)