_copysign.c File Reference

#include "libm.h"
#include "libm_util.h"

Include dependency graph for _copysign.c:

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Functions
double FN_PROTOTYPE()	_copysign (double x, double y)

Function Documentation

_copysign()

double FN_PROTOTYPE() _copysign	(	double	x,
		double	y
	)

Definition at line 34 of file _copysign.c.

{
 
  unsigned long long ux, uy;
  GET_BITS_DP64(x, ux);
  GET_BITS_DP64(y, uy);
  if ((ux ^ uy) & SIGNBIT_DP64)
    PUT_BITS_DP64(ux ^ SIGNBIT_DP64, x);
  return x;
 
}

Referenced by _copysignf(), and _copysignl().