e_exp.c File Reference

#include "cdefs-compat.h"
#include <float.h>
#include <openlibm_math.h>
#include "math_private.h"

Include dependency graph for e_exp.c:

Functions
OLM_DLLEXPORT double	__ieee754_exp (double x)

Variables
static const double	one = 1.0
static const double	halF [2] = {0.5,-0.5,}
static const double	huge = 1.0e+300
static const double	o_threshold = 7.09782712893383973096e+02
static const double	u_threshold = -7.45133219101941108420e+02
static const double	ln2HI [2]
static const double	ln2LO [2]
static const double	invln2 = 1.44269504088896338700e+00
static const double	P1 = 1.66666666666666019037e-01
static const double	P2 = -2.77777777770155933842e-03
static const double	P3 = 6.61375632143793436117e-05
static const double	P4 = -1.65339022054652515390e-06
static const double	P5 = 4.13813679705723846039e-08
static volatile double	twom1000 = 9.33263618503218878990e-302

Function Documentation

__ieee754_exp()

OLM_DLLEXPORT double __ieee754_exp

(

double

x

)

References GET_HIGH_WORD, GET_LOW_WORD, halF, huge, INSERT_WORDS, invln2, k, ln2HI, ln2LO, o_threshold, one, P1, P2, P3, P4, P5, STRICT_ASSIGN, t, twom1000, and u_threshold.

Referenced by __ieee754_cosh(), __ieee754_sinh(), erf(), and erfc().

Variable Documentation

halF

const double halF[2] = {0.5,-0.5,}

static

Referenced by __ieee754_exp().

huge

const double huge = 1.0e+300

static

Referenced by __ieee754_exp().

invln2

const double invln2 = 1.44269504088896338700e+00

static

Referenced by __ieee754_exp().

ln2HI

const double ln2HI[2]

static

Initial value:

={ 6.93147180369123816490e-01,  
         -6.93147180369123816490e-01,}

Referenced by __ieee754_exp().

ln2LO

const double ln2LO[2]

static

Initial value:

={ 1.90821492927058770002e-10,  
         -1.90821492927058770002e-10,}

Referenced by __ieee754_exp().

o_threshold

const double o_threshold = 7.09782712893383973096e+02

static

Referenced by __ieee754_exp().

one

const double one = 1.0

static

Referenced by __ieee754_exp().

P1

const double P1 = 1.66666666666666019037e-01

static

Referenced by __ieee754_exp().

P2

const double P2 = -2.77777777770155933842e-03

static

Referenced by __ieee754_exp().

P3

const double P3 = 6.61375632143793436117e-05

static

Referenced by __ieee754_exp().

P4

const double P4 = -1.65339022054652515390e-06

static

Referenced by __ieee754_exp().

P5

const double P5 = 4.13813679705723846039e-08

static

Referenced by __ieee754_exp().

twom1000

volatile double twom1000 = 9.33263618503218878990e-302

static

Referenced by __ieee754_exp().

u_threshold

const double u_threshold = -7.45133219101941108420e+02

static

Referenced by __ieee754_exp().