reactos/sdk/lib/crt/float/copysign.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries
* FILE: lib/sdk/crt/float/copysign.c
* PURPOSE: Unknown
* PROGRAMER: Unknown
* UPDATE HISTORY:
* 25/11/05: Added license header
*/
#include <precomp.h>
#include <internal/ieee.h>
/*
* @implemented
*/
double _copysign (double __d, double __s)
{
union
{
double* __d;
double_s* d;
} d;
union
{
double* __s;
double_s* s;
} s;
d.__d = &__d;
s.__s = &__s;
d.d->sign = s.s->sign;
return __d;
}