zend_strtod.c File Reference

#include <zend_operators.h>
#include <zend_strtod.h>
#include "zend_strtod_int.h"
#include "zend_globals.h"
#include "stdlib.h"
#include "string.h"
#include "errno.h"
#include "float.h"
#include "math.h"

Go to the source code of this file.

Data Structures
union	U
struct	BCinfo
struct	Bigint

Macros
#define	Long   int32_t
#define	ULong   uint32_t
#define	Bigint   _zend_strtod_bigint
#define	freelist   (EG(strtod_state).freelist)
#define	p5s   (EG(strtod_state).p5s)
#define	dtoa_result   (EG(strtod_state).result)
#define	MALLOC   malloc
#define	FREE   free
#define	IEEE_Arith
#define	CONST   const
#define	word0(x)
#define	word1(x)
#define	dval(x)
#define	STRTOD_DIGLIM   40
#define	strtod_diglim   STRTOD_DIGLIM
#define	Storeinc(a, b, c)
#define	Exp_shift   20
#define	Exp_shift1   20
#define	Exp_msk1   0x100000
#define	Exp_msk11   0x100000
#define	Exp_mask   0x7ff00000
#define	P   53
#define	Nbits   53
#define	Bias   1023
#define	Emax   1023
#define	Emin   (-1022)
#define	Exp_1   0x3ff00000
#define	Exp_11   0x3ff00000
#define	Ebits   11
#define	Frac_mask   0xfffff
#define	Frac_mask1   0xfffff
#define	Ten_pmax   22
#define	Bletch   0x10
#define	Bndry_mask   0xfffff
#define	Bndry_mask1   0xfffff
#define	LSB   1
#define	Sign_bit   0x80000000
#define	Log2P   1
#define	Tiny0   0
#define	Tiny1   1
#define	Quick_max   14
#define	Int_max   14
#define	Avoid_Underflow
#define	Flt_Rounds   1
#define	Rounding   Flt_Rounds
#define	rounded_product(a, b)
#define	rounded_quotient(a, b)
#define	Big0   (Frac_mask1 | Exp_msk1*(DBL_MAX_EXP+Bias-1))
#define	Big1   0xffffffff
#define	Pack_32
#define	FFFFFFFF   0xffffffffUL
#define	Llong   long long
#define	ULLong   unsigned Llong
#define	ACQUIRE_DTOA_LOCK(n)
#define	FREE_DTOA_LOCK(n)
#define	Kmax   ZEND_STRTOD_K_MAX
#define	Bcopy(x, y)
#define	d0   word0(&d)
#define	d1   word1(&d)
#define	d0   word0(d)
#define	d1   word1(d)
#define	Scale_Bit   0x10
#define	n_bigtens   5
#define	ULbits   32
#define	kshift   5
#define	kmask   31

Typedefs
typedef struct BCinfo	BCinfo
typedef struct Bigint	Bigint

Functions
ZEND_API int	zend_shutdown_strtod (void)
ZEND_API double	zend_strtod (const char *s00, const char **se)
ZEND_API void	zend_freedtoa (char *s)
ZEND_API char *	zend_dtoa (double dd, int mode, int ndigits, int *decpt, bool *sign, char **rve)
ZEND_API double	zend_hex_strtod (const char *str, const char **endptr)
ZEND_API double	zend_oct_strtod (const char *str, const char **endptr)
ZEND_API double	zend_bin_strtod (const char *str, const char **endptr)
ZEND_API char *	zend_gcvt (double value, int ndigit, char dec_point, char exponent, char *buf)

Macro Definition Documentation

ACQUIRE_DTOA_LOCK

#define ACQUIRE_DTOA_LOCK

(

n

)

Value:

/*nothing*/

Definition at line 533 of file zend_strtod.c.

Avoid_Underflow

#define Avoid_Underflow

Definition at line 386 of file zend_strtod.c.

Bcopy

#define Bcopy	(		x,
			y )

Value:

memcpy((char *)&x->sign, (char *)&y->sign, \
y->wds*sizeof(Long) + 2*sizeof(int))

Definition at line 638 of file zend_strtod.c.

Bias

#define Bias   1023

Definition at line 366 of file zend_strtod.c.

Big0

#define Big0   (Frac_mask1 | Exp_msk1*(DBL_MAX_EXP+Bias-1))

Definition at line 496 of file zend_strtod.c.

Big1

#define Big1   0xffffffff

Definition at line 497 of file zend_strtod.c.

Bigint

#define Bigint   _zend_strtod_bigint

Definition at line 206 of file zend_strtod.c.

Bletch

#define Bletch   0x10

Definition at line 375 of file zend_strtod.c.

Bndry_mask

#define Bndry_mask   0xfffff

Definition at line 376 of file zend_strtod.c.

Bndry_mask1

#define Bndry_mask1   0xfffff

Definition at line 377 of file zend_strtod.c.

CONST

#define CONST   const

Definition at line 311 of file zend_strtod.c.

d0 [1/2]

#define d0   word0(&d)

d0 [2/2]

#define d0   word0(d)

d1 [1/2]

double d1   word1(&d)

Definition at line 521 of file zend_vm_def.h.

d1 [2/2]

#define d1   word1(d)

dtoa_result

#define dtoa_result   (EG(strtod_state).result)

Definition at line 209 of file zend_strtod.c.

dval

#define dval

(

x

)

Value:

(x)->d

Definition at line 328 of file zend_strtod.c.

Ebits

#define Ebits   11

Definition at line 371 of file zend_strtod.c.

Emax

#define Emax   1023

Definition at line 367 of file zend_strtod.c.

Emin

#define Emin   (-1022)

Definition at line 368 of file zend_strtod.c.

Exp_1

#define Exp_1   0x3ff00000

Definition at line 369 of file zend_strtod.c.

Exp_11

#define Exp_11   0x3ff00000

Definition at line 370 of file zend_strtod.c.

Exp_mask

#define Exp_mask   0x7ff00000

Definition at line 363 of file zend_strtod.c.

Exp_msk1

#define Exp_msk1   0x100000

Definition at line 361 of file zend_strtod.c.

Exp_msk11

#define Exp_msk11   0x100000

Definition at line 362 of file zend_strtod.c.

Exp_shift

#define Exp_shift   20

Definition at line 359 of file zend_strtod.c.

Exp_shift1

#define Exp_shift1   20

Definition at line 360 of file zend_strtod.c.

FFFFFFFF

#define FFFFFFFF   0xffffffffUL

Definition at line 510 of file zend_strtod.c.

Flt_Rounds

#define Flt_Rounds   1

Definition at line 396 of file zend_strtod.c.

Frac_mask

#define Frac_mask   0xfffff

Definition at line 372 of file zend_strtod.c.

Frac_mask1

#define Frac_mask1   0xfffff

Definition at line 373 of file zend_strtod.c.

FREE

#define FREE   free

Definition at line 238 of file zend_strtod.c.

FREE_DTOA_LOCK

#define FREE_DTOA_LOCK

(

n

)

Value:

/*nothing*/

Definition at line 534 of file zend_strtod.c.

freelist

#define freelist   (EG(strtod_state).freelist)

Definition at line 207 of file zend_strtod.c.

IEEE_Arith

#define IEEE_Arith

Definition at line 255 of file zend_strtod.c.

Int_max

#define Int_max   14

Definition at line 384 of file zend_strtod.c.

kmask

#define kmask   31

Definition at line 1676 of file zend_strtod.c.

Kmax

#define Kmax   ZEND_STRTOD_K_MAX

Definition at line 537 of file zend_strtod.c.

kshift

#define kshift   5

Definition at line 1675 of file zend_strtod.c.

Llong

#define Llong   long long

Definition at line 525 of file zend_strtod.c.

Log2P

#define Log2P   1

Definition at line 380 of file zend_strtod.c.

Long

#define Long   int32_t

Definition at line 195 of file zend_strtod.c.

LSB

#define LSB   1

Definition at line 378 of file zend_strtod.c.

MALLOC

#define MALLOC   malloc

Definition at line 237 of file zend_strtod.c.

n_bigtens

#define n_bigtens   5

Definition at line 1504 of file zend_strtod.c.

Nbits

#define Nbits   53

Definition at line 365 of file zend_strtod.c.

P

#define P   53

Definition at line 364 of file zend_strtod.c.

p5s

#define p5s   (EG(strtod_state).p5s)

Definition at line 208 of file zend_strtod.c.

Pack_32

#define Pack_32

Definition at line 500 of file zend_strtod.c.

Quick_max

#define Quick_max   14

Definition at line 383 of file zend_strtod.c.

rounded_product

#define rounded_product	(		a,
			b )

Value:

a *= b

Definition at line 492 of file zend_strtod.c.

rounded_quotient

#define rounded_quotient	(		a,
			b )

Value:

a /= b

Definition at line 493 of file zend_strtod.c.

Rounding

#define Rounding   Flt_Rounds

Definition at line 404 of file zend_strtod.c.

Scale_Bit

#define Scale_Bit   0x10

Definition at line 1503 of file zend_strtod.c.

Sign_bit

#define Sign_bit   0x80000000

Definition at line 379 of file zend_strtod.c.

Storeinc

#define Storeinc	(		a,
			b,
			c )

Value:

(((unsigned short *)a)[1] = (unsigned short)b, \
((unsigned short *)a)[0] = (unsigned short)c, a++)

Definition at line 345 of file zend_strtod.c.

STRTOD_DIGLIM

#define STRTOD_DIGLIM   40

Definition at line 331 of file zend_strtod.c.

strtod_diglim

#define strtod_diglim   STRTOD_DIGLIM

Definition at line 337 of file zend_strtod.c.

Ten_pmax

#define Ten_pmax   22

Definition at line 374 of file zend_strtod.c.

Tiny0

#define Tiny0   0

Definition at line 381 of file zend_strtod.c.

Tiny1

#define Tiny1   1

Definition at line 382 of file zend_strtod.c.

ULbits

#define ULbits   32

Definition at line 1674 of file zend_strtod.c.

ULLong

#define ULLong   unsigned Llong

Definition at line 528 of file zend_strtod.c.

ULong

#define ULong   uint32_t

Definition at line 198 of file zend_strtod.c.

word0

#define word0

(

x

)

Value:

(x)->L[1]

Definition at line 322 of file zend_strtod.c.

word1

#define word1

(

x

)

Value:

(x)->L[0]

Definition at line 323 of file zend_strtod.c.

Typedef Documentation

BCinfo

typedef struct BCinfo BCinfo

Definition at line 503 of file zend_strtod.c.

Bigint

typedef struct Bigint Bigint

Definition at line 546 of file zend_strtod.c.

Function Documentation

zend_bin_strtod()

ZEND_API double zend_bin_strtod	(	const char *	str,
		const char **	endptr )

Definition at line 4475 of file zend_strtod.c.

zend_dtoa()

ZEND_API char * zend_dtoa	(	double	dd,
		int	mode,
		int	ndigits,
		int *	decpt,
		bool *	sign,
		char **	rve )

Definition at line 3707 of file zend_strtod.c.

zend_freedtoa()

ZEND_API void zend_freedtoa

(

char *

s

)

Definition at line 3661 of file zend_strtod.c.

zend_gcvt()

ZEND_API char * zend_gcvt	(	double	value,
		int	ndigit,
		char	dec_point,
		char	exponent,
		char *	buf )

Definition at line 4513 of file zend_strtod.c.

zend_hex_strtod()

ZEND_API double zend_hex_strtod	(	const char *	str,
		const char **	endptr )

Definition at line 4410 of file zend_strtod.c.

zend_oct_strtod()

ZEND_API double zend_oct_strtod	(	const char *	str,
		const char **	endptr )

Definition at line 4443 of file zend_strtod.c.

zend_shutdown_strtod()

ZEND_API int zend_shutdown_strtod

(

void

)

Definition at line 560 of file zend_strtod.c.

zend_strtod()

ZEND_API double zend_strtod	(	const char *	s00,
		const char **	se )

Definition at line 2521 of file zend_strtod.c.