Subversion Repositories openrisc_2011-10-31

/* sf_copysign.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.

 * ====================================================

 */

/*

 * copysignf(float x, float y)

 * copysignf(x,y) returns a value with the magnitude of x and

 * with the sign bit of y.

 */

#include "fdlibm.h"

#ifdef __STDC__

        float copysignf(float x, float y)

#else

        float copysignf(x,y)

        float x,y;

#endif

{

        __uint32_t ix,iy;

        GET_FLOAT_WORD(ix,x);

        GET_FLOAT_WORD(iy,y);

        SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000));

        return x;

}

#ifdef _DOUBLE_IS_32BITS

#ifdef __STDC__

        double copysign(double x, double y)

#else

        double copysign(x,y)

        double x,y;

#endif

{

        return (double) copysignf((float) x, (float) y);

}

#endif /* defined(_DOUBLE_IS_32BITS) */