xref: /reactos/sdk/lib/crt/float/copysign.c (revision c2c66aff) 
1 /*
2  * COPYRIGHT:   See COPYING in the top level directory
3  * PROJECT:     ReactOS system libraries
4  * FILE:        lib/sdk/crt/float/copysign.c
5  * PURPOSE:     Unknown
6  * PROGRAMER:   Unknown
7  * UPDATE HISTORY:
8  *              25/11/05: Added license header
9  */
10 
11 #include <precomp.h>
12 #include <internal/ieee.h>
13 
14 /*
15  * @implemented
16  */
_copysign(double __d,double __s)17 double _copysign (double __d, double __s)
18 {
19   union
20   {
21       double*	__d;
22       double_s*	  d;
23   } d;
24   union
25   {
26       double*	__s;
27       double_s*   s;
28   } s;
29   d.__d = &__d;
30   s.__s = &__s;
31 
32   d.d->sign = s.s->sign;
33 
34   return __d;
35 }
36 
37