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)
14 static 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 #define NO_MATH_REDIRECT
24 #include <math.h>
25 #include <libm-alias-double.h>
26
27 double
__copysign(double x,double y)28 __copysign (double x, double y)
29 {
30 return __builtin_copysign (x, y);
31 }
32 libm_alias_double (__copysign, copysign)
33