public class XoShiRo128PlusPlus extends IntProvider
float
values try the
XoShiRo128Plus
generator.
This is a member of the Xor-Shift-Rotate family of generators. Memory footprint is 128 bits.
Modifier and Type | Field and Description |
---|---|
protected int |
state0
State 0 of the generator.
|
protected int |
state1
State 1 of the generator.
|
protected int |
state2
State 2 of the generator.
|
protected int |
state3
State 3 of the generator.
|
Modifier | Constructor and Description |
---|---|
|
XoShiRo128PlusPlus(int[] seed)
Creates a new instance.
|
|
XoShiRo128PlusPlus(int seed0,
int seed1,
int seed2,
int seed3)
Creates a new instance using a 4 element seed.
|
protected |
XoShiRo128PlusPlus(XoShiRo128PlusPlus source)
Creates a copy instance.
|
Modifier and Type | Method and Description |
---|---|
protected XoShiRo128PlusPlus |
copy()
Create a copy.
|
protected byte[] |
getStateInternal()
Creates a snapshot of the RNG state.
|
UniformRandomProvider |
jump() |
JumpableUniformRandomProvider |
longJump() |
int |
next() |
protected int |
nextOutput()
Use the current state to compute the next output from the generator.
|
protected void |
setStateInternal(byte[] s)
Resets the RNG to the given
state . |
nextBoolean, nextBytes, nextBytes, nextDouble, nextInt, nextLong, resetCachedState
checkIndex, checkStateSize, composeStateInternal, extendSeed, extendSeed, fillState, fillState, restoreState, saveState, splitStateInternal, toString
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
longJumps, longJumps
jumps, jumps
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
protected int state0
protected int state1
protected int state2
protected int state3
public XoShiRo128PlusPlus(int[] seed)
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.public XoShiRo128PlusPlus(int seed0, int seed1, int seed2, int seed3)
seed0
- Initial seed element 0.seed1
- Initial seed element 1.seed2
- Initial seed element 2.seed3
- Initial seed element 3.protected XoShiRo128PlusPlus(XoShiRo128PlusPlus source)
source
- Source to copy.protected int nextOutput()
next()
before the current state is updated.protected XoShiRo128PlusPlus copy()
protected byte[] getStateInternal()
getStateInternal
in class IntProvider
protected void setStateInternal(byte[] s)
state
.setStateInternal
in class IntProvider
s
- State (previously obtained by a call to
BaseProvider.getStateInternal()
).BaseProvider.checkStateSize(byte[],int)
public int next()
next
in interface RandomIntSource
public UniformRandomProvider jump()
The jump size is the equivalent of 264
calls to nextInt()
. It can provide
up to 264 non-overlapping subsequences.
jump
in interface JumpableUniformRandomProvider
public JumpableUniformRandomProvider longJump()
The jump size is the equivalent of 296 calls to
nextLong()
. It can provide up to
232 non-overlapping subsequences of length 296; each
subsequence can provide up to 232 non-overlapping subsequences of
length 264 using the jump()
method.
longJump
in interface LongJumpableUniformRandomProvider
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