RandomLongSource
, JumpableUniformRandomProvider
, LongJumpableUniformRandomProvider
, RestorableUniformRandomProvider
, UniformRandomProvider
public class XoShiRo512StarStar extends LongProvider
This is a member of the Xor-Shift-Rotate family of generators. Memory footprint is 512 bits
and the period is 2512-1. Speed is expected to be slower than
XoShiRo256StarStar
.
Modifier and Type | Field | Description |
---|---|---|
protected long |
state0 |
State 0 of the generator.
|
protected long |
state1 |
State 1 of the generator.
|
protected long |
state2 |
State 2 of the generator.
|
protected long |
state3 |
State 3 of the generator.
|
protected long |
state4 |
State 4 of the generator.
|
protected long |
state5 |
State 5 of the generator.
|
protected long |
state6 |
State 6 of the generator.
|
protected long |
state7 |
State 7 of the generator.
|
Modifier | Constructor | Description |
---|---|---|
|
XoShiRo512StarStar(long[] seed) |
Creates a new instance.
|
|
XoShiRo512StarStar(long seed0,
long seed1,
long seed2,
long seed3,
long seed4,
long seed5,
long seed6,
long seed7) |
Creates a new instance using an 8 element seed.
|
protected |
XoShiRo512StarStar(XoShiRo512StarStar source) |
Creates a copy instance.
|
Modifier and Type | Method | Description |
---|---|---|
protected XoShiRo512StarStar |
copy() |
Create a copy.
|
protected byte[] |
getStateInternal() |
Creates a snapshot of the RNG state.
|
UniformRandomProvider |
jump() |
|
JumpableUniformRandomProvider |
longJump() |
|
long |
next() |
|
protected long |
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 . |
checkIndex, checkStateSize, composeStateInternal, fillState, fillState, nextInt, nextLong, restoreState, saveState, splitStateInternal, toString
nextBoolean, nextBytes, nextBytes, nextDouble, nextFloat, nextInt, nextLong, resetCachedState
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
nextBoolean, nextBytes, nextBytes, nextDouble, nextFloat, nextInt, nextInt, nextLong, nextLong
protected long state0
protected long state1
protected long state2
protected long state3
protected long state4
protected long state5
protected long state6
protected long state7
public XoShiRo512StarStar(long[] seed)
seed
- Initial seed.
If the length is larger than 8, only the first 8 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 XoShiRo512StarStar(long seed0, long seed1, long seed2, long seed3, long seed4, long seed5, long seed6, long seed7)
seed0
- Initial seed element 0.seed1
- Initial seed element 1.seed2
- Initial seed element 2.seed3
- Initial seed element 3.seed4
- Initial seed element 4.seed5
- Initial seed element 5.seed6
- Initial seed element 6.seed7
- Initial seed element 7.protected XoShiRo512StarStar(XoShiRo512StarStar source)
source
- Source to copy.protected long nextOutput()
next()
before the current state is updated.protected XoShiRo512StarStar copy()
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()
next
in interface RandomLongSource
public UniformRandomProvider jump()
The jump size is the equivalent of 2256
calls to nextLong()
. It can provide
up to 2256 non-overlapping subsequences.
jump
in interface JumpableUniformRandomProvider
public JumpableUniformRandomProvider longJump()
The jump size is the equivalent of 2384 calls to
nextLong()
. It can provide up to
2128 non-overlapping subsequences of length 2384; each
subsequence can provide up to 2128 non-overlapping subsequences of
length 2256using the jump()
method.
longJump
in interface LongJumpableUniformRandomProvider
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