Struct rand_xoshiro::Xoshiro256StarStar [−][src]
A xoshiro256** random number generator.
The xoshiro256** algorithm is not suitable for cryptographic purposes, but is very fast and has excellent statistical properties.
The algorithm used here is translated from the xoshiro256starstar.c
reference source code by
David Blackman and Sebastiano Vigna.
Implementations
impl Xoshiro256StarStar
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pub fn jump(&mut self)
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Jump forward, equivalently to 2^128 calls to next_u64()
.
This can be used to generate 2^128 non-overlapping subsequences for parallel computations.
use rand_xoshiro::rand_core::SeedableRng; use rand_xoshiro::Xoshiro256StarStar; let rng1 = Xoshiro256StarStar::seed_from_u64(0); let mut rng2 = rng1.clone(); rng2.jump(); let mut rng3 = rng2.clone(); rng3.jump();
pub fn long_jump(&mut self)
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Jump forward, equivalently to 2^192 calls to next_u64()
.
This can be used to generate 2^64 starting points, from each of which
jump()
will generate 2^64 non-overlapping subsequences for parallel
distributed computations.
Trait Implementations
impl Clone for Xoshiro256StarStar
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fn clone(&self) -> Xoshiro256StarStar
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pub fn clone_from(&mut self, source: &Self)
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impl Debug for Xoshiro256StarStar
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impl RngCore for Xoshiro256StarStar
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fn next_u32(&mut self) -> u32
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fn next_u64(&mut self) -> u64
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fn fill_bytes(&mut self, dest: &mut [u8])
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fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>
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impl SeedableRng for Xoshiro256StarStar
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type Seed = [u8; 32]
Seed type, which is restricted to types mutably-dereferencable as u8
arrays (we recommend [u8; N]
for some N
). Read more
fn from_seed(seed: [u8; 32]) -> Xoshiro256StarStar
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Create a new Xoshiro256StarStar
. If seed
is entirely 0, it will be
mapped to a different seed.
fn seed_from_u64(seed: u64) -> Xoshiro256StarStar
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Seed a Xoshiro256StarStar
from a u64
using SplitMix64
.
pub fn from_rng<R>(rng: R) -> Result<Self, Error> where
R: RngCore,
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R: RngCore,
pub fn from_entropy() -> Self
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Auto Trait Implementations
impl RefUnwindSafe for Xoshiro256StarStar
impl Send for Xoshiro256StarStar
impl Sync for Xoshiro256StarStar
impl Unpin for Xoshiro256StarStar
impl UnwindSafe for Xoshiro256StarStar
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,