e_log2l.c File Reference

#include <openlibm_math.h>
#include "math_private.h"

Include dependency graph for e_log2l.c:

Macros
#define	LOG2EA   4.4269504088896340735992e-1L
#define	SQRTH   0.70710678118654752440L

Functions
long double	log2l (long double x)

Variables
static long double	P []
static long double	Q []
static long double	R [4]
static long double	S [4]

Macro Definition Documentation

LOG2EA

#define LOG2EA   4.4269504088896340735992e-1L

SQRTH

#define SQRTH   0.70710678118654752440L

Function Documentation

log2l()

long double log2l

(

long double

x

)

References __p1evll(), __polevll(), IEEEl2bits::e, frexpl(), INFINITY, isnan, ldexpl(), LOG2EA, NAN, P, Q, R, S, SQRTH, and z.

Variable Documentation

P

long double P[]

static

Initial value:

= {
 4.9962495940332550844739E-1L,
 1.0767376367209449010438E1L,
 7.7671073698359539859595E1L,
 2.5620629828144409632571E2L,
 4.2401812743503691187826E2L,
 3.4258224542413922935104E2L,
 1.0747524399916215149070E2L,
}

Referenced by log2l().

Q

long double Q[]

static

Initial value:

= {

 2.3479774160285863271658E1L,
 1.9444210022760132894510E2L,
 7.7952888181207260646090E2L,
 1.6911722418503949084863E3L,
 2.0307734695595183428202E3L,
 1.2695660352705325274404E3L,
 3.2242573199748645407652E2L,
}

Referenced by log2l().

R

long double R[4]

static

Initial value:

= {
 1.9757429581415468984296E-3L,
-7.1990767473014147232598E-1L,
 1.0777257190312272158094E1L,
-3.5717684488096787370998E1L,
}

Referenced by log2l().

S

long double S[4]

static

Initial value:

= {

-2.6201045551331104417768E1L,
 1.9361891836232102174846E2L,
-4.2861221385716144629696E2L,
}

Referenced by log2l().