DUNE::Math::Random::FSR256 Class Reference

Detailed Description

Feedback shift register generator with 256-byte table.

This has the same behavior as GLIBC2's random() with default settings.

Public Member Functions
	FSR256 (void)
	FSR256 (int32_t seed)
	~FSR256 ()
int32_t	random (void)
void	seed (int32_t value)
Public Member Functions inherited from DUNE::Math::Random::Generator
virtual	~Generator ()
virtual double	uniform (void)
double	uniform (double a, double b)
double	gaussian (void)
double	gaussian (double mu, double sigma)
void	ballU (double radius, double *x, double *y)
void	ballG (double sigma, double *x, double *y)

Additional Inherited Members
Static Public Member Functions inherited from DUNE::Math::Random::Generator
static int32_t	arbitrarySeed (void)
Static Public Attributes inherited from DUNE::Math::Random::Generator
static const int32_t	c_max_random

Constructor & Destructor Documentation

DUNE::Math::Random::FSR256::FSR256

(

void

)

References DUNE::Math::Random::Generator::arbitrarySeed(), and seed().

DUNE::Math::Random::FSR256::FSR256

(

int32_t

seed

)

References seed().

DUNE::Math::Random::FSR256::~FSR256

(

void

)

Member Function Documentation

int32_t DUNE::Math::Random::FSR256::random ( void  )

virtual

Generate a 32-bit signed integer, uniformly distributed in [0,c_max_random].

Returns

generated number.

Implements DUNE::Math::Random::Generator.

References i, j, and table.

Referenced by seed().

void DUNE::Math::Random::FSR256::seed ( int32_t  value )

virtual

Re-initialize generator with given seed.

Parameters

value

value for seed.

Implements DUNE::Math::Random::Generator.

References i, random(), and table.

Referenced by FSR256().

Member Data Documentation

int DUNE::Math::Random::FSR256::i

Referenced by random(), and seed().

int DUNE::Math::Random::FSR256::j

Referenced by random().

int32_t DUNE::Math::Random::FSR256::table[c_table_size]

Referenced by random(), and seed().

Collaboration diagram for DUNE::Math::Random::FSR256: