#include "rrd_nan_inf.h"

int done_nan = 0;
int done_inf = 0;

double dnan;
double dinf;

#if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
#include <math.h>

#define NAN_FUNC (double)fmod(0.0,0.0)
#define INF_FUNC (double)fabs((double)log(0.0))

#else

#define NAN_FUNC (double)(0.0/0.0)
#define INF_FUNC (double)(1.0/0.0)

#endif

double set_to_DNAN(void)
{
  if ( !done_nan ) { dnan = NAN_FUNC; done_nan = 1; }
  return dnan;
}

double set_to_DINF(void)
{
  if ( !done_inf ) { dinf = INF_FUNC; done_inf = 1; }
  return dinf;
}