Struct rand_xoshiro::Xoroshiro64Star

pub struct Xoroshiro64Star { /* fields omitted */ }

A xoroshiro64* random number generator.

The xoroshiro64* algorithm is not suitable for cryptographic purposes, but is very fast and has good statistical properties, besides a low linear complexity in the lowest bits.

The algorithm used here is translated from the xoroshiro64star.c reference source code by David Blackman and Sebastiano Vigna.

Trait Implementations

impl Clone for Xoroshiro64Star

fn clone(&self) -> Xoroshiro64Star

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Xoroshiro64Star

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl RngCore for Xoroshiro64Star

fn next_u32(&mut self) -> u32

Return the next random u32.

fn next_u64(&mut self) -> u64

Return the next random u64.

fn fill_bytes(&mut self, dest: &mut [u8])

Fill dest with random data.

fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error>

Fill dest entirely with random data.

impl SeedableRng for Xoroshiro64Star

type Seed = [u8; 8]

Seed type, which is restricted to types mutably-dereferencable as u8 arrays (we recommend [u8; N] for some N).

fn from_seed(seed: [u8; 8]) -> Xoroshiro64Star

Create a new Xoroshiro64Star. If seed is entirely 0, it will be mapped to a different seed.

fn seed_from_u64(seed: u64) -> Xoroshiro64Star

Seed a Xoroshiro64Star from a u64 using SplitMix64.

pub fn from_rng<R>(rng: R) -> Result<Self, Error> where
    R: RngCore, 

Create a new PRNG seeded from another Rng.

pub fn from_entropy() -> Self

Creates a new instance of the RNG seeded via getrandom.