copysign.c File Reference

#include <precomp.h>
#include <internal/ieee.h>

Include dependency graph for copysign.c:

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Functions
double	_copysign (double __d, double __s)

Function Documentation

_copysign()

double _copysign	(	double	__d,
		double	__s
	)

Definition at line 17 of file copysign.c.

{
  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;
}