Pseudo-random number generator implemented on MT19937. More...

#include <CAENRandom.h>
#include <math.h>
#include <inttypes.h>
#include <CAENLogger.h>
#include <CAENMultiplatform.h>

Include dependency graph for CAENRandom.c:

Data Structures
struct	_initializedstuff

struct	_librarystate

struct	_statevector

struct	_integer

struct	_internalstate

Functions
int32_t	c_rand32_init (void)

void	c_rand32_deinit (void)

int32_t	c_rand64_init (void)

void	c_rand64_deinit (void)

void	c_rand32_seed (uint32_t seed)

void	c_rand64_seed (uint64_t seed)

static void	_twist32 (void)

static void	_twist64 (void)

uint32_t	c_rand32_int (void)

uint64_t	c_rand64_int (void)

double	c_rand (void)

double	c_rand64 (void)

double	c_rand64_normal (void)

Variables
static const c_locallogger_t	__locallogger = { ( "CAENRandomLog.txt" ), ( "CAENRandom.c" ) }

static struct _librarystate	lState
	Library state. More...

static struct _internalstate	iState
	Internal state. More...

static const struct _integer	kW
	The number of bits of each word in the state sequence. More...

static const struct _integer	kM
	The shift size used on twists to transform the values. More...

static const struct _integer	kN
	The number of elements in the state sequence (degree of recurrence). More...

static const struct _integer	kA
	The XOR mask applied as the linear function on each twist. More...

static const struct _integer	kB
	The XOR mask used as parameter `b` in the tempering process of the generation algorithm. More...

static const struct _integer	kC
	The XOR mask used as parameter `c` in the tempering process of the generation algorithm. More...

static const struct _integer	kD
	The XOR mask used as parameter `d` in the tempering process of the generation algorithm. More...

static const struct _integer	kS
	The shift size of parameter `s` used in the tempering process of the generation algorithm. More...

static const struct _integer	kT
	The shift size of parameter `t` used in the tempering process of the generation algorithm. More...

static const struct _integer	kU
	The shift size of parameter `u` used in the tempering process of the generation algorithm. More...

static const struct _integer	kL
	The shift size of parameter `l` used in the tempering process of the generation algorithm. More...

static const struct _integer	kF
	The initialization multiplier used to seed the state sequence when a single value is used as seed. More...

static const struct _integer	kDefaultSeed
	The default seed used on construction or seeding. More...

static const struct _integer	kLowerMask
	The mask with 31 1's, where 31 is the number of bits that mark the separation point of words on each twist. More...

Detailed Description

Pseudo-random number generator implemented on MT19937.

Author: Giovanni Cerretani

Definition in file CAENRandom.c.

Function Documentation

◆ _twist32()

static void _twist32 ( void )

static

Definition at line 255 of file CAENRandom.c.

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◆ _twist64()

static void _twist64 ( void )

static

Definition at line 274 of file CAENRandom.c.

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Variable Documentation

◆ __locallogger

const c_locallogger_t __locallogger = { ( "CAENRandomLog.txt" ), ( "CAENRandom.c" ) }

static

Definition at line 45 of file CAENRandom.c.

◆ lState

struct _librarystate lState

static

Library state.

Definition at line 83 of file CAENRandom.c.

◆ iState

struct _internalstate iState

static

Internal state.

Definition at line 84 of file CAENRandom.c.

◆ kW

const struct _integer kW

static

Initial value:

= {
    UINT32_C(32),
}

The number of bits of each word in the state sequence.

Definition at line 90 of file CAENRandom.c.

◆ kM

const struct _integer kM

static

Initial value:

= {
    UINT32_C(397),
}

The shift size used on twists to transform the values.

Definition at line 96 of file CAENRandom.c.

◆ kN

const struct _integer kN

static

Initial value:

= {
    UINT32_C(624),
}

The number of elements in the state sequence (degree of recurrence).

Definition at line 102 of file CAENRandom.c.

◆ kA

const struct _integer kA

static

Initial value:

= {
    UINT32_C(0x9908b0df),
}

The XOR mask applied as the linear function on each twist.

Definition at line 108 of file CAENRandom.c.

◆ kB

const struct _integer kB

static

Initial value:

= {
    UINT32_C(0x9d2c5680),
}

The XOR mask used as parameter b in the tempering process of the generation algorithm.

Definition at line 114 of file CAENRandom.c.

◆ kC

const struct _integer kC

static

Initial value:

= {
    UINT32_C(0xefc60000),
}

The XOR mask used as parameter c in the tempering process of the generation algorithm.

Definition at line 120 of file CAENRandom.c.

◆ kD

const struct _integer kD

static

Initial value:

= {
    UINT32_C(0xffffffff),
}

The XOR mask used as parameter d in the tempering process of the generation algorithm.

Definition at line 126 of file CAENRandom.c.

◆ kS

const struct _integer kS

static

Initial value:

= {
    UINT32_C(7),
}

The shift size of parameter s used in the tempering process of the generation algorithm.

Definition at line 132 of file CAENRandom.c.

◆ kT

const struct _integer kT

static

Initial value:

= {
    UINT32_C(15),
}

The shift size of parameter t used in the tempering process of the generation algorithm.

Definition at line 138 of file CAENRandom.c.

◆ kU

const struct _integer kU

static

Initial value:

= {
    UINT32_C(11),
}

The shift size of parameter u used in the tempering process of the generation algorithm.

Definition at line 144 of file CAENRandom.c.

◆ kL

const struct _integer kL

static

Initial value:

= {
    UINT32_C(18),
}

The shift size of parameter l used in the tempering process of the generation algorithm.

Definition at line 150 of file CAENRandom.c.

◆ kF

const struct _integer kF

static

Initial value:

= {
    UINT32_C(1812433253),
}

The initialization multiplier used to seed the state sequence when a single value is used as seed.

Definition at line 156 of file CAENRandom.c.

◆ kDefaultSeed

const struct _integer kDefaultSeed

static

Initial value:

= {
    UINT32_C(5489),
}

The default seed used on construction or seeding.

Definition at line 162 of file CAENRandom.c.

◆ kLowerMask

const struct _integer kLowerMask

static

Initial value:

= {
    UINT32_C(0x7fffffff),
}

The mask with 31 1's, where 31 is the number of bits that mark the separation point of words on each twist.

Definition at line 168 of file CAENRandom.c.

Data Structures

Functions

Variables

Detailed Description

Function Documentation

◆ _twist32()

◆ _twist64()

Variable Documentation

◆ __locallogger

◆ lState

◆ iState

◆ kW

◆ kM

◆ kN

◆ kA

◆ kB

◆ kC

◆ kD

◆ kS

◆ kT

◆ kU

◆ kL

◆ kF

◆ kDefaultSeed

◆ kLowerMask