Merge pull request #3 from heuripedes/master
[picodrive.git] / platform / gp2x / code940 / uClibc / s_copysign.c
CommitLineData
cc68a136 1/* @(#)s_copysign.c 5.1 93/09/24 */
2/*
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
5 *
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
9 * is preserved.
10 * ====================================================
11 */
12
13#if defined(LIBM_SCCS) && !defined(lint)
14static char rcsid[] = "$NetBSD: s_copysign.c,v 1.8 1995/05/10 20:46:57 jtc Exp $";
15#endif
16
17/*
18 * copysign(double x, double y)
19 * copysign(x,y) returns a value with the magnitude of x and
20 * with the sign bit of y.
21 */
22
23#include "math.h"
24#include "math_private.h"
25
26#ifdef __STDC__
27 double copysign(double x, double y)
28#else
29 double copysign(x,y)
30 double x,y;
31#endif
32{
33 u_int32_t hx,hy;
34 GET_HIGH_WORD(hx,x);
35 GET_HIGH_WORD(hy,y);
36 SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000));
37 return x;
38}
39