| 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 |
| 28 | __copysign (double x, double y) |
| 29 | { |
| 30 | return __builtin_copysign (x, y); |
| 31 | } |
| 32 | libm_alias_double (__copysign, copysign) |
| 33 | |