31 lines
786 B
C
31 lines
786 B
C
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/* @(#)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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/* $Id$ */
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#include <Mw/BaseTypes.h>
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#include "math_internal.h"
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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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double
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nbsd_copysign(double x, double y) {
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MwU32 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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