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-
- /* @(#)s_copysign.c 1.3 95/01/18 */
- /*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunSoft, 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 "fdlibm.h"
-
- #ifdef __STDC__
- double copysign(double x, double y)
- #else
- double copysign(x,y)
- double x,y;
- #endif
- {
- __HI(x) = (__HI(x)&0x7fffffff)|(__HI(y)&0x80000000);
- return x;
- }
-