s_exp2l.c File Reference

#include "cdefs-compat.h"
#include <float.h>
#include <stdint.h>
#include "bsd_cdefs.h"
#include "amd64/bsd_ieeefp.h"
#include <openlibm_math.h>
#include "math_private.h"

Include dependency graph for s_exp2l.c:

Macros
#define	TBLBITS   7
#define	TBLSIZE   (1 << TBLBITS)
#define	BIAS   (LDBL_MAX_EXP - 1)
#define	EXPMASK   (BIAS + LDBL_MAX_EXP)

Functions
OLM_DLLEXPORT long double	exp2l (long double x)

Variables
static const long double	huge = 0x1p10000L
static volatile long double	twom10000 = 0x1p-10000L
static const double	redux = 0x1.8p63 / TBLSIZE
static const double	P1 = 0x1.62e42fefa39efp-1
static const double	P2 = 0x1.ebfbdff82c58fp-3
static const double	P3 = 0x1.c6b08d7049fap-5
static const double	P4 = 0x1.3b2ab6fba4da5p-7
static const double	P5 = 0x1.5d8804780a736p-10
static const double	P6 = 0x1.430918835e33dp-13
static const double	tbl [TBLSIZE *2]

Macro Definition Documentation

BIAS

#define BIAS   (LDBL_MAX_EXP - 1)

EXPMASK

#define EXPMASK   (BIAS + LDBL_MAX_EXP)

TBLBITS

#define TBLBITS   7

TBLSIZE

#define TBLSIZE   (1 << TBLBITS)

Function Documentation

exp2l()

OLM_DLLEXPORT long double exp2l

(

long double

x

)

References BIAS, IEEEl2bits::e, exp2(), EXPMASK, FP_PE, huge, k, LDBL_MAX_EXP, LDBL_MIN_EXP, P1, P2, P3, P4, P5, P6, r, redux, tbl, TBLBITS, TBLSIZE, twom10000, u, IEEEl2bits::xbits, and z.

Variable Documentation

huge

const long double huge = 0x1p10000L

static

Referenced by exp2l().

P1

const double P1 = 0x1.62e42fefa39efp-1

static

Referenced by exp2l().

P2

const double P2 = 0x1.ebfbdff82c58fp-3

static

Referenced by exp2l().

P3

const double P3 = 0x1.c6b08d7049fap-5

static

Referenced by exp2l().

P4

const double P4 = 0x1.3b2ab6fba4da5p-7

static

Referenced by exp2l().

P5

const double P5 = 0x1.5d8804780a736p-10

static

Referenced by exp2l().

P6

const double P6 = 0x1.430918835e33dp-13

static

Referenced by exp2l().

redux

const double redux = 0x1.8p63 / TBLSIZE

static

Referenced by exp2l().

tbl

const double tbl[TBLSIZE *2]

static

Referenced by exp2l().

twom10000

volatile long double twom10000 = 0x1p-10000L

static

Referenced by exp2l().