R_ext/Arith.h File Reference

#include <R_ext/libextern.h>
#include <math.h>

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Defines
#define	NA_LOGICAL   R_NaInt
#define	NA_INTEGER   R_NaInt
#define	NA_REAL   R_NaReal
#define	ISNA(x)   R_IsNA(x)
#define	ISNAN(x)   (isnan(x)!=0)
#define	R_FINITE(x)   R_finite(x)
Functions
int	R_IsNA (double x)
int	R_IsNaN (double x)
int	R_finite (double x)
Variables
LibExtern double	R_NaN
LibExtern double	R_PosInf
LibExtern double	R_NegInf
LibExtern double	R_NaReal
LibExtern int	R_NaInt

---

Define Documentation

#define ISNA

(

x

)

R_IsNA(x)

#define ISNAN

(

x

)

(isnan(x)!=0)

#define NA_INTEGER   R_NaInt

#define NA_LOGICAL   R_NaInt

#define NA_REAL   R_NaReal

#define R_FINITE

(

x

)

R_finite(x)

---

Function Documentation

int R_finite

(

double

x

)

int R_IsNA

(

double

x

)

int R_IsNaN

(

double

x

)

---

Variable Documentation

LibExtern int R_NaInt

LibExtern double R_NaN

LibExtern double R_NaReal

LibExtern double R_NegInf

LibExtern double R_PosInf