Rand Class Reference

Provides radomization functionality. More...

#include <Random.hpp>

List of all members.

Static Public Member Functions
void	saveState (unsigned long *mt, int &mti)
	Stores state information that can be reloaded later.
void	loadState (unsigned long *mt, int mti)
	Loads state information that can be reloaded later.
void	init_genrand (unsigned long s)
	Initializes mt[N] with a seed.
void	init_by_array (unsigned long init_key[], int key_length)
	initialize by an array with array-length
unsigned long	int32 (void)
	Generates a random number on [0,0xffffffff]-interval.
long	int31 (void)
	Generates a random number on [0,0x7fffffff]-interval.
double	real1 (void)
	Generates a random number on [0,1]-real-interval.
double	real2 (void)
	Generates a random number on [0,1)-real-interval.
double	real3 (void)
	Generates a random number on (0,1)-real-interval.
double	res53 (void)
	Generates a random number on [0,1) with 53-bit resolution.
Static Private Attributes
unsigned long	mt [RANDOM_ARRAY_SZ]
	The array for the state vector.
int	mti = N+1
	mti==N+1 means mt[N] is not initialized

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Detailed Description

Provides radomization functionality.

Internally, code based on Merseene Twister from http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/MT2002/emt19937ar.html

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Member Function Documentation

void Rand::saveState (  unsigned long *  mt, int &  mti )  [static]

Stores state information that can be reloaded later. Parameters: mt  An array of N elements that where the state vector will be stored. mti  mti == N + 1 means mt[N] is not initialized.

void Rand::loadState (  unsigned long *  mt, int  mti )  [static]

Loads state information that can be reloaded later. Parameters: mt  An array of N elements from which the state vector will be loaded. mti  mti == N + 1 means mt[N] is not initialized.

void Rand::init_genrand (  unsigned long  s  )  [static]

Initializes mt[N] with a seed. Parameters: s  The seed.

void Rand::init_by_array (  unsigned long  init_key[], int  key_length )  [static]

initialize by an array with array-length Parameters: init_key  The array for initializing keys. key_length  The length of the init_key.

unsigned long Rand::int32 (  void   )  [static]

Generates a random number on [0,0xffffffff]-interval. Returns: A random value on the interval.

long Rand::int31 (  void   )  [static]

Generates a random number on [0,0x7fffffff]-interval. Returns: A random value on the interval.

double Rand::real1 (  void   )  [static]

Generates a random number on [0,1]-real-interval. Returns: A random value on the interval.

double Rand::real2 (  void   )  [static]

Generates a random number on [0,1)-real-interval. Returns: A random value on the interval.

double Rand::real3 (  void   )  [static]

Generates a random number on (0,1)-real-interval. Returns: A random value on the interval.

double Rand::res53 (  void   )  [static]

Generates a random number on [0,1) with 53-bit resolution. Returns: A random value on the interval.

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The documentation for this class was generated from the following files:

• Random.hpp
• Random.cpp

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