koho::RandomState Class Reference

A random number generator. More...

#include <random_number_generator.h>

Public Member Functions
	RandomState ()
	Create and initialize random number generator with the current system time. More...
	RandomState (unsigned long seed)
	Create and initialize random number generator with a seed. More...
double	uniform_real (double low, double high)
	Provide a double random number from a uniform distribution between [low, high). More...
long	uniform_int (long low, long high)
	Provide a long random number from a uniform distribution between [low, high). More...

Static Public Attributes
static const long	MAX_INT = std::numeric_limits<long>::max()
	Upper bound for long random numbers [..., high). More...

Protected Attributes
std::mt19937	eng
	Mersenne twister. More...

Detailed Description

A random number generator.

Constructor & Destructor Documentation

RandomState() [1/2]

koho::RandomState::RandomState

(

)

Create and initialize random number generator with the current system time.

RandomState() [2/2]

koho::RandomState::RandomState

(

unsigned long

seed

)

Create and initialize random number generator with a seed.

Parameters

[in]

seed

Member Function Documentation

uniform_int()

long koho::RandomState::uniform_int	(	long	low,
		long	high
	)

Provide a long random number from a uniform distribution between [low, high).

Parameters

[in]	low	included lower bound for random number.
[in]	high	excluded upper bound for random number.

Returns

random number.

uniform_real()

double koho::RandomState::uniform_real	(	double	low,
		double	high
	)

Provide a double random number from a uniform distribution between [low, high).

Parameters

[in]	low	included lower bound for random number.
[in]	high	excluded upper bound for random number.

Returns

random number.

Member Data Documentation

eng

std::mt19937 koho::RandomState::eng

protected

Mersenne twister.

MAX_INT

const long koho::RandomState::MAX_INT = std::numeric_limits<long>::max()

static

Upper bound for long random numbers [..., high).

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

• random_number_generator.h
• random_number_generator.cpp