s_copysign.c

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Author : Sam Lantinga
Date : 2017-11-04 15:53:19
Hash : 6cf06575
Message : Updated math code from the uClibc 0.9.33 release

src/libm/s_copysign.c

/*
 * ====================================================
 * 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.
 * ====================================================
 */

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

#include "math_libm.h"
#include "math_private.h"

double copysign(double x, double y)
{
	u_int32_t hx,hy;
	GET_HIGH_WORD(hx,x);
	GET_HIGH_WORD(hy,y);
	SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000));
        return x;
}
libm_hidden_def(copysign)

kc3-lang/SDL/src/libm/s_copysign.c

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kc3-lang/SDL /src/libm/s_copysign.c