1 /* s_copysignf.c -- float version of s_copysign.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
3 */
4
5 /*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8 *
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
12 * is preserved.
13 * ====================================================
14 */
15
16 #include <sys/cdefs.h>
17
18 /*
19 * copysignf(float x, float y)
20 * copysignf(x,y) returns a value with the magnitude of x and
21 * with the sign bit of y.
22 */
23
24 #include "math.h"
25 #include "math_private.h"
26
27 float
copysignf(float x,float y)28 copysignf(float x, float y)
29 {
30 u_int32_t ix,iy;
31 GET_FLOAT_WORD(ix,x);
32 GET_FLOAT_WORD(iy,y);
33 SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000));
34 return x;
35 }
36