1 /* sf_copysign.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 /*
17  * copysignf(float x, float y)
18  * copysignf(x,y) returns a value with the magnitude of x and
19  * with the sign bit of y.
20  */
21 
22 #include "fdlibm.h"
23 
24 #ifdef __STDC__
copysignf(float x,float y)25 	float copysignf(float x, float y)
26 #else
27 	float copysignf(x,y)
28 	float x,y;
29 #endif
30 {
31 	__uint32_t ix,iy;
32 	GET_FLOAT_WORD(ix,x);
33 	GET_FLOAT_WORD(iy,y);
34 	SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000));
35         return x;
36 }
37 
38 _MATH_ALIAS_f_ff(copysign)
39