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[/] [or1k/] [trunk/] [linux/] [uClibc/] [libm/] [s_copysign.c] - Blame information for rev 1325

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Line No. Rev Author Line
1 1325 phoenix
/* @(#)s_copysign.c 5.1 93/09/24 */
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/*
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 * ====================================================
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 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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 *
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 * Developed at SunPro, a Sun Microsystems, Inc. business.
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 * Permission to use, copy, modify, and distribute this
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 * software is freely granted, provided that this notice
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 * is preserved.
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 * ====================================================
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 */
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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: s_copysign.c,v 1.8 1995/05/10 20:46:57 jtc Exp $";
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#endif
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/*
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 * copysign(double x, double y)
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 * copysign(x,y) returns a value with the magnitude of x and
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 * with the sign bit of y.
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 */
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#include "math.h"
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#include "math_private.h"
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#ifdef __STDC__
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        double copysign(double x, double y)
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#else
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        double copysign(x,y)
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        double x,y;
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#endif
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{
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        u_int32_t hx,hy;
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        GET_HIGH_WORD(hx,x);
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        GET_HIGH_WORD(hy,y);
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        SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000));
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        return x;
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}
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