C# Class RazorDB.C5.C5Random

A modern random number generator based on G. Marsaglia: Seeds for Random Number Generators, Communications of the ACM 46, 5 (May 2003) 90-93; and a posting by Marsaglia to comp.lang.c on 2003-04-03.

Inheritance: System.Random

显示文件 Open project: gnoso/razordb

Public Methods

Method	Description
C5Random ( ) : System	Create a random number generator seed by system time.
C5Random ( long seed ) : System	Create a random number generator with a given seed
C5Random ( uint Q ) : System	Create a random number generator with a specified internal start state.
Next ( ) : int	Get a new random System.Int32 value
Next ( int max ) : int	Get a random non-negative integer less than a given upper bound
Next ( int min, int max ) : int	Get a random integer between two given bounds
NextBytes ( byte buffer ) : void	Fill a array of byte with random bytes
NextDouble ( ) : double	Get a new random System.Double value

Protected Methods

Method	Description
Sample ( ) : double	Get a new random System.Double value

Private Methods

Method	Description
Cmwc ( ) : uint

Method Details

C5Random() public method

Create a random number generator seed by system time.

public C5Random ( ) : System
return	System

C5Random() public method

Create a random number generator with a given seed

If seed is zero

public C5Random ( long seed ) : System
seed	long	The seed
return	System

C5Random() public method

Create a random number generator with a specified internal start state.

If Q is not of length exactly 16

public C5Random ( uint Q ) : System
Q	uint	The start state. Must be a collection of random bits given by an array of exactly 16 uints.
return	System

Next() public method

Get a new random System.Int32 value

public Next ( ) : int
return	int

Next() public method

Get a random non-negative integer less than a given upper bound

If max is negative

public Next ( int max ) : int
max	int	The upper bound (exclusive)
return	int

Next() public method

Get a random integer between two given bounds

If max is less than min

public Next ( int min, int max ) : int
min	int	The lower bound (inclusive)
max	int	The upper bound (exclusive)
return	int

NextBytes() public method

Fill a array of byte with random bytes

public NextBytes ( byte buffer ) : void
buffer	byte	The array to fill
return	void

NextDouble() public method

Get a new random System.Double value

public NextDouble ( ) : double
return	double

Sample() protected method

Get a new random System.Double value

protected Sample ( ) : double
return	double