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__FBSDID("$FreeBSD$");
18
19/*
20 * copysignf(float x, float y)
21 * copysignf(x,y) returns a value with the magnitude of x and
22 * with the sign bit of y.
23 */
24
25#include "math.h"
26#include "math_private.h"
27
28float
29copysignf(float x, float y)
30{
31	u_int32_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