2 /* @(#)s_copysign.c 1.3 95/01/18 */
4 * ====================================================
5 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
7 * Developed at SunSoft, a Sun Microsystems, Inc. business.
8 * Permission to use, copy, modify, and distribute this
9 * software is freely granted, provided that this notice
11 * ====================================================
15 * copysign(double x, double y)
16 * copysign(x,y) returns a value with the magnitude of x and
17 * with the sign bit of y.
22 #ifndef _DOUBLE_IS_32BITS
25 double copysign(double x
, double y
)
34 SET_HIGH_WORD(x
, (hx
&0x7fffffff)|(hy
&0x80000000));
37 #endif /* _DOUBLE_IS_32BITS */