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- /*
- * ====================================================
- * 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.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)
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