acosh.c File Reference

#include <errno.h>
#include <float.h>
#include <math.h>
#include "ruby.h"

Go to the source code of this file.

Macros
#define	DBL_MANT_DIG   53 /* in this case, at least 12 digit precision */
#define	BIG_CRITERIA_BIT   (1<<DBL_MANT_DIG/2)
#define	BIG_CRITERIA   (1.0*BIG_CRITERIA_BIT)
#define	SMALL_CRITERIA_BIT   (1<<(DBL_MANT_DIG/3))
#define	SMALL_CRITERIA   (1.0/SMALL_CRITERIA_BIT)

Functions
double	acosh (double x)
double	asinh (double x)
double	atanh (double x)

Macro Definition Documentation

BIG_CRITERIA

#define BIG_CRITERIA   (1.0*BIG_CRITERIA_BIT)

Definition at line 23 of file acosh.c.

Referenced by acosh(), and asinh().

BIG_CRITERIA_BIT

#define BIG_CRITERIA_BIT   (1<<DBL_MANT_DIG/2)

Definition at line 21 of file acosh.c.

DBL_MANT_DIG

#define DBL_MANT_DIG   53 /* in this case, at least 12 digit precision */

Definition at line 19 of file acosh.c.

Referenced by asinh(), nextafter(), and ruby_hdtoa().

SMALL_CRITERIA

#define SMALL_CRITERIA   (1.0/SMALL_CRITERIA_BIT)

Definition at line 29 of file acosh.c.

Referenced by asinh(), and atanh().

SMALL_CRITERIA_BIT

#define SMALL_CRITERIA_BIT   (1<<(DBL_MANT_DIG/3))

Definition at line 27 of file acosh.c.

Function Documentation

acosh()

double acosh

(

double

x

)

Definition at line 36 of file acosh.c.

References BIG_CRITERIA.

asinh()

double asinh

(

double

x

)

Definition at line 52 of file acosh.c.

References BIG_CRITERIA, DBL_MANT_DIG, neg, and SMALL_CRITERIA.

atanh()

double atanh

(

double

x

)

Definition at line 75 of file acosh.c.

References errno, isinf(), neg, and SMALL_CRITERIA.