1 /* @(#)s_copysign.c 5.1 93/09/24 */
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
10 * ====================================================
12 * $NetBSD: s_copysign.c,v 1.11 2002/05/26 22:01:54 wiz Exp $
13 * $DragonFly: src/lib/libm/src/s_copysign.c,v 1.1 2005/07/26 21:15:20 joerg Exp $
17 * copysign(double x, double y)
18 * copysign(x,y) returns a value with the magnitude of x and
19 * with the sign bit of y.
23 #include "math_private.h"
26 copysign(double x, double y)
31 SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000));