1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
| /*
| * ====================================================
| * 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_libm.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)
|
|
