RandomLongSource
, RestorableUniformRandomProvider
, UniformRandomProvider
public class MersenneTwister64 extends LongProvider
Mersenne Twister
.
This class is mainly a Java port of the 2014/2/23 version of the generator written in C by Takuji Nishimura and Makoto Matsumoto.
Here is their original copyright:
Copyright (C) 2004, Makoto Matsumoto and Takuji Nishimura, All rights reserved. |
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Constructor | Description |
---|---|
MersenneTwister64(long[] seed) |
Creates a new random number generator.
|
Modifier and Type | Method | Description |
---|---|---|
protected byte[] |
getStateInternal() |
Creates a snapshot of the RNG state.
|
long |
next() |
|
protected void |
setStateInternal(byte[] s) |
Resets the RNG to the given
state . |
checkIndex, checkStateSize, composeStateInternal, fillState, fillState, nextInt, nextLong, restoreState, saveState, splitStateInternal, toString
nextBoolean, nextBytes, nextBytes, nextDouble, nextFloat, nextInt, nextLong, resetCachedState
public MersenneTwister64(long[] seed)
seed
- Initial seed.protected byte[] getStateInternal()
getStateInternal
in class LongProvider
protected void setStateInternal(byte[] s)
state
.setStateInternal
in class LongProvider
s
- State (previously obtained by a call to
BaseProvider.getStateInternal()
).BaseProvider.checkStateSize(byte[],int)
public long next()
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