genericopenlibs/openenvcore/libm/src/s_copysignf.c
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 11 Jun 2010 15:26:22 +0300
changeset 34 5fae379060a7
parent 0 e4d67989cc36
permissions -rw-r--r--
Revision: 201023 Kit: 2010123

/*--------------------------------------------------------------------
 *© Portions copyright (c) 2006 Nokia Corporation.  All rights reserved.
 *--------------------------------------------------------------------
*/
/* s_copysignf.c -- float version of s_copysign.c.
 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
 */

/*
 * ====================================================
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 *
 * Developed at SunPro, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice
 * is preserved.
 * ====================================================
 */
#ifndef __SYMBIAN32__
#ifndef lint
static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_copysignf.c,v 1.9 2003/07/23 04:53:46 peter Exp $";
#endif
#endif //__SYMBIAN32__

/*
 * copysignf(float x, float y)
 * copysignf(x,y) returns a value with the magnitude of x and
 * with the sign bit of y.
 */

#include <math.h>
#include "math_private.h"

EXPORT_C float
copysignf(float x, float y)
{
	u_int32_t ix,iy;
	GET_FLOAT_WORD(ix,x);
	GET_FLOAT_WORD(iy,y);
	SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000));
        return x;
}