mtwist.c File Reference

#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include "mtwist.h"

Include dependency graph for mtwist.c:

Macros
#define	ATTRIBUTE(attrs)
#define	MT_INLINE   /* Disable the inline keyword */
#define	MT_EXTERN   /* Generate real code for functions */
#define	MT_GENERATE_CODE_IN_HEADER   1 /* Generate code when #including */
#define	RECURRENCE_OFFSET   397 /* Offset into state space for the */
#define	MATRIX_A   0x9908b0df /* Constant vector A for the */
#define	BIT_WIDTH   32 /* Work with 32-bit words */
#define	UPPER_MASK   0x80000000 /* Most significant w-r bits */
#define	LOWER_MASK   0x7fffffff /* Least significant r bits */
#define	COMBINE_BITS(x, y)
#define	MATRIX_MULTIPLY(original, new)
#define	KNUTH_MULTIPLIER_OLD    69069
#define	KNUTH_MULTIPLIER_NEW    1812433253ul
#define	KNUTH_SHIFT   30
#define	DEFAULT_SEED32_OLD    4357
#define	DEFAULT_SEED32_NEW    5489ul
#define	DEVRANDOM   "/dev/random"
#define	DEVURANDOM   "/dev/urandom"

Functions
void	mts_mark_initialized (mt_state *state)
void	mts_seed32 (mt_state *state, uint32_t seed)
void	mts_seed32new (mt_state *state, uint32_t seed)
void	mts_seedfull (mt_state *state, uint32_t seeds[MT_STATE_SIZE])
uint32_t	mts_seed (mt_state *state)
uint32_t	mts_goodseed (mt_state *state)
void	mts_bestseed (mt_state *state)
void	mts_refresh (register mt_state *state)
int	mts_savestate (FILE *statefile, mt_state *state)
int	mts_loadstate (FILE *statefile, mt_state *state)
void	mt_seed32 (uint32_t seed)
void	mt_seed32new (uint32_t seed)
void	mt_seedfull (uint32_t seeds[MT_STATE_SIZE])
uint32_t	mt_seed (void)
uint32_t	mt_goodseed (void)
void	mt_bestseed (void)
mt_state *	mt_getstate (void)
int	mt_savestate (FILE *statefile)
int	mt_loadstate (FILE *statefile)

Variables
mt_state	mt_default_state
double	mt_32_to_double
double	mt_64_to_double

Macro Definition Documentation

ATTRIBUTE

#define ATTRIBUTE

(

attrs

)

BIT_WIDTH

#define BIT_WIDTH   32 /* Work with 32-bit words */

COMBINE_BITS

#define COMBINE_BITS	(		x,
			y )

Value:

            (((x) & UPPER_MASK) | ((y) & LOWER_MASK))

DEFAULT_SEED32_NEW

#define DEFAULT_SEED32_NEW    5489ul

DEFAULT_SEED32_OLD

#define DEFAULT_SEED32_OLD    4357

DEVRANDOM

#define DEVRANDOM   "/dev/random"

DEVURANDOM

#define DEVURANDOM   "/dev/urandom"

KNUTH_MULTIPLIER_NEW

#define KNUTH_MULTIPLIER_NEW    1812433253ul

KNUTH_MULTIPLIER_OLD

#define KNUTH_MULTIPLIER_OLD    69069

KNUTH_SHIFT

#define KNUTH_SHIFT   30

LOWER_MASK

#define LOWER_MASK   0x7fffffff /* Least significant r bits */

MATRIX_A

#define MATRIX_A   0x9908b0df /* Constant vector A for the */

MATRIX_MULTIPLY

#define MATRIX_MULTIPLY	(		original,
			new )

Value:

            ((original) ^ ((new) >> 1) \
              ^ matrix_decider[(new) & 0x1])

MT_EXTERN

#define MT_EXTERN   /* Generate real code for functions */

MT_GENERATE_CODE_IN_HEADER

#define MT_GENERATE_CODE_IN_HEADER   1 /* Generate code when #including */

MT_INLINE

#define MT_INLINE   /* Disable the inline keyword */

RECURRENCE_OFFSET

#define RECURRENCE_OFFSET   397 /* Offset into state space for the */

UPPER_MASK

#define UPPER_MASK   0x80000000 /* Most significant w-r bits */

Function Documentation

mt_bestseed()

void mt_bestseed

(

void

)

mt_getstate()

mt_state * mt_getstate

(

void

)

mt_goodseed()

uint32_t mt_goodseed

(

void

)

mt_loadstate()

int mt_loadstate

(

FILE *

statefile

)

mt_savestate()

int mt_savestate

(

FILE *

statefile

)

mt_seed()

uint32_t mt_seed

(

void

)

mt_seed32()

void mt_seed32

(

uint32_t

seed

)

mt_seed32new()

void mt_seed32new

(

uint32_t

seed

)

mt_seedfull()

void mt_seedfull

(

uint32_t

seeds[MT_STATE_SIZE]

)

mts_bestseed()

void mts_bestseed

(

mt_state *

state

)

mts_goodseed()

uint32_t mts_goodseed

(

mt_state *

state

)

mts_loadstate()

int mts_loadstate	(	FILE *	statefile,
		mt_state *	state )

mts_mark_initialized()

void mts_mark_initialized

(

mt_state *

state

)

mts_refresh()

void mts_refresh

(

register mt_state *

state

)

mts_savestate()

int mts_savestate	(	FILE *	statefile,
		mt_state *	state )

mts_seed()

uint32_t mts_seed

(

mt_state *

state

)

mts_seed32()

void mts_seed32	(	mt_state *	state,
		uint32_t	seed )

mts_seed32new()

void mts_seed32new	(	mt_state *	state,
		uint32_t	seed )

mts_seedfull()

void mts_seedfull	(	mt_state *	state,
		uint32_t	seeds[MT_STATE_SIZE] )

Variable Documentation

mt_32_to_double

double mt_32_to_double

mt_64_to_double

double mt_64_to_double

mt_default_state

mt_state mt_default_state