Class XoShiRo128Plus
java.lang.Object
org.apache.commons.rng.core.BaseProvider
org.apache.commons.rng.core.source32.IntProvider
org.apache.commons.rng.core.source32.AbstractXoShiRo128
org.apache.commons.rng.core.source32.XoShiRo128Plus
- All Implemented Interfaces:
RandomIntSource
,JumpableUniformRandomProvider
,LongJumpableUniformRandomProvider
,RestorableUniformRandomProvider
,UniformRandomProvider
A fast 32-bit generator suitable for
float
generation. This is slightly faster than the
all-purpose generator XoShiRo128StarStar
.
This is a member of the Xor-Shift-Rotate family of generators. Memory footprint is 128 bits.
- Since:
- 1.3
- See Also:
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Field Summary
Fields inherited from class org.apache.commons.rng.core.source32.AbstractXoShiRo128
state0, state1, state2, state3
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Constructor Summary
ConstructorsModifierConstructorDescriptionXoShiRo128Plus
(int[] seed) Creates a new instance.XoShiRo128Plus
(int seed0, int seed1, int seed2, int seed3) Creates a new instance using a 4 element seed.protected
XoShiRo128Plus
(XoShiRo128Plus source) Creates a copy instance. -
Method Summary
Modifier and TypeMethodDescriptionprotected XoShiRo128Plus
copy()
Create a copy.protected int
Use the current state to compute the next output from the generator.Methods inherited from class org.apache.commons.rng.core.source32.AbstractXoShiRo128
getStateInternal, jump, longJump, next, setStateInternal
Methods inherited from class org.apache.commons.rng.core.source32.IntProvider
nextBoolean, nextBytes, nextBytes, nextBytesFill, nextDouble, nextInt, nextLong, resetCachedState
Methods inherited from class org.apache.commons.rng.core.BaseProvider
checkIndex, checkStateSize, composeStateInternal, extendSeed, extendSeed, fillState, fillState, restoreState, saveState, splitStateInternal, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface org.apache.commons.rng.JumpableUniformRandomProvider
jumps, jumps
Methods inherited from interface org.apache.commons.rng.LongJumpableUniformRandomProvider
longJumps, longJumps
Methods inherited from interface org.apache.commons.rng.UniformRandomProvider
doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextBytes, nextBytes, nextDouble, nextDouble, nextDouble, nextFloat, nextFloat, nextFloat, nextInt, nextInt, nextInt, nextLong, nextLong, nextLong
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Constructor Details
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XoShiRo128Plus
public XoShiRo128Plus(int[] seed) Creates a new instance.- Parameters:
seed
- Initial seed. If the length is larger than 4, only the first 4 elements will be used; if smaller, the remaining elements will be automatically set. A seed containing all zeros will create a non-functional generator.
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XoShiRo128Plus
public XoShiRo128Plus(int seed0, int seed1, int seed2, int seed3) Creates a new instance using a 4 element seed. A seed containing all zeros will create a non-functional generator.- Parameters:
seed0
- Initial seed element 0.seed1
- Initial seed element 1.seed2
- Initial seed element 2.seed3
- Initial seed element 3.
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XoShiRo128Plus
Creates a copy instance.- Parameters:
source
- Source to copy.
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Method Details
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nextOutput
protected int nextOutput()Use the current state to compute the next output from the generator. The output function shall vary with respect to different generators. This method is called fromAbstractXoShiRo128.next()
before the current state is updated.- Specified by:
nextOutput
in classAbstractXoShiRo128
- Returns:
- the next output
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copy
Create a copy.- Specified by:
copy
in classAbstractXoShiRo128
- Returns:
- the copy
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