isanan.c File Reference

#include <stdio.h>
#include <math.h>
#include "machine.h"
#include "Os_specific.h"

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Functions
integer C2F()	isanan (double *x)

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Function Documentation

integer C2F() isanan

(

double *

x

)

Definition at line 18 of file isanan.c.

References x.

Referenced by idcmp_equal(), idcmp_great(), idcmp_greatequal(), idcmp_less(), idcmp_lessequal(), idcmp_lessgreat(), and nlinear_interp().

{
#ifdef _ISANAN
  return(_isnan(*x)== 1);
#else
  return((!( *x <= 1.0 )) && (!( *x >= 1.0 )));
#endif
}

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