Struct xoshiro::Xoshiro512StarStar [−][src]
pub struct Xoshiro512StarStar { /* fields omitted */ }
A xoshiro512** random number generator.
The xoshiro512** algorithm is not suitable for cryptographic purposes, but is very fast and has excellent statistical properties.
The algorithm used here is translated from the xoshiro512starstar.c
reference source code by
David Blackman and Sebastiano Vigna.
Methods
impl Xoshiro512StarStar
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impl Xoshiro512StarStar
pub fn from_seed_u64(seed: u64) -> Xoshiro512StarStar
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pub fn from_seed_u64(seed: u64) -> Xoshiro512StarStar
Seed a Xoshiro512StarStar
from a u64
using SplitMix64
.
pub fn jump(&mut self)
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pub fn jump(&mut self)
Jump forward, equivalently to 2^256 calls to next_u64()
.
This can be used to generate 2^256 non-overlapping subsequences for parallel computations.
use rand::SeedableRng; use xoshiro::Xoshiro512StarStar; let rng1 = Xoshiro512StarStar::from_seed_u64(0); let mut rng2 = rng1.clone(); rng2.jump(); let mut rng3 = rng2.clone(); rng3.jump();
Trait Implementations
impl Debug for Xoshiro512StarStar
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impl Debug for Xoshiro512StarStar
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl Clone for Xoshiro512StarStar
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impl Clone for Xoshiro512StarStar
fn clone(&self) -> Xoshiro512StarStar
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fn clone(&self) -> Xoshiro512StarStar
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl SeedableRng for Xoshiro512StarStar
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impl SeedableRng for Xoshiro512StarStar
type Seed = Seed512
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: Seed512) -> Xoshiro512StarStar
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fn from_seed(seed: Seed512) -> Xoshiro512StarStar
Create a new Xoshiro512StarStar
. If seed
is entirely 0, it will be
mapped to a different seed.
fn from_rng<R>(rng: R) -> Result<Self, Error> where
R: RngCore,
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fn from_rng<R>(rng: R) -> Result<Self, Error> where
R: RngCore,
Create a new PRNG seeded from another Rng
. Read more
impl RngCore for Xoshiro512StarStar
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impl RngCore for Xoshiro512StarStar
fn next_u32(&mut self) -> u32
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fn next_u32(&mut self) -> u32
Return the next random u32
. Read more
fn next_u64(&mut self) -> u64
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fn next_u64(&mut self) -> u64
Return the next random u64
. Read more
fn fill_bytes(&mut self, dest: &mut [u8])
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fn fill_bytes(&mut self, dest: &mut [u8])
Fill dest
with random data. Read more
fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>
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fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>
Fill dest
entirely with random data. Read more
Auto Trait Implementations
impl Send for Xoshiro512StarStar
impl Send for Xoshiro512StarStar
impl Sync for Xoshiro512StarStar
impl Sync for Xoshiro512StarStar