Package org.jruby.util

Class Random

java.lang.Object

org.jruby.util.Random

public class Random
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final BigInteger	INTPAIR_CONST
private static final double	LDEXP_CONST
private int	left
private static final int	LMASK
private static final int	M
private static final int	MATRIX_A
static final int	N
private final int[]	state
private static final int	UMASK

Constructor Summary

Constructors

Constructor	Description
Random()
Random(int s)
Random(int[] initKey)
Random(int[] state, int left)
Random(Random orig)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
int	genrandInt32()
double	genrandReal()
double	genrandReal2()
int	getLeft()
int[]	getState()
int	hashCode()
private void	initByArray(int[] initKey)
private void	initGenrand(int s)
private double	intPairToRealInclusive(int a, int b)
private static int	MIXBITS(int u, int v)
private void	nextState()
private static int	TWIST(int u, int v)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Field Details

N

public static final int N

See Also:

• Constant Field Values

M

private static final int M

See Also:

• Constant Field Values

MATRIX_A

private static final int MATRIX_A

See Also:

• Constant Field Values

UMASK

private static final int UMASK

See Also:

• Constant Field Values

LMASK

private static final int LMASK

See Also:

• Constant Field Values

state

private final int[] state

left

private int left

INTPAIR_CONST

private static final BigInteger INTPAIR_CONST

LDEXP_CONST

private static final double LDEXP_CONST

Constructor Details

Random

public Random()

Random

public Random(int s)

Random

public Random(int[] initKey)

Random

public Random(Random orig)

Random

public Random(int[] state,
 int left)

Method Details

MIXBITS

private static int MIXBITS(int u,
 int v)

TWIST

private static int TWIST(int u,
 int v)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

initGenrand

private void initGenrand(int s)

initByArray

private void initByArray(int[] initKey)

nextState

private void nextState()

genrandInt32

public int genrandInt32()

genrandReal

public double genrandReal()

genrandReal2

public double genrandReal2()

intPairToRealInclusive

private double intPairToRealInclusive(int a,
 int b)

getState

public int[] getState()

getLeft

public int getLeft()