s_copysign.c - vx32 - Local 9vx git repository for patches.
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       ---
       s_copysign.c (885B)
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            1 /* @(#)s_copysign.c 5.1 93/09/24 */
            2 /*
            3  * ====================================================
            4  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
            5  *
            6  * Developed at SunPro, a Sun Microsystems, Inc. business.
            7  * Permission to use, copy, modify, and distribute this
            8  * software is freely granted, provided that this notice
            9  * is preserved.
           10  * ====================================================
           11  */
           12 
           13 #ifndef lint
           14 static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_copysign.c,v 1.9 2003/07/23 04:53:46 peter Exp $";
           15 #endif
           16 
           17 /*
           18  * copysign(double x, double y)
           19  * copysign(x,y) returns a value with the magnitude of x and
           20  * with the sign bit of y.
           21  */
           22 
           23 #include "math.h"
           24 #include "math_private.h"
           25 
           26 double
           27 copysign(double x, double y)
           28 {
           29         u_int32_t hx,hy;
           30         GET_HIGH_WORD(hx,x);
           31         GET_HIGH_WORD(hy,y);
           32         SET_HIGH_WORD(x,(hx&0x7fffffff)|(hy&0x80000000));
           33         return x;
           34 }