Struct Xoroshiro64StarStar

pub struct Xoroshiro64StarStar { /* private fields */ }

A xoroshiro64** random number generator.

The xoshiro64** algorithm is not suitable for cryptographic purposes, but is very fast and has excellent statistical properties.

The algorithm used here is translated from the xoroshiro64starstar.c reference source code by David Blackman and Sebastiano Vigna.

Trait Implementations

impl Clone for Xoroshiro64StarStar

fn clone(&self) -> Xoroshiro64StarStar

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Xoroshiro64StarStar

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

Formats the value using the given formatter.

impl PartialEq for Xoroshiro64StarStar

fn eq(&self, other: &Xoroshiro64StarStar) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RngCore for Xoroshiro64StarStar

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.

impl SeedableRng for Xoroshiro64StarStar

fn from_seed(seed: [u8; 8]) -> Xoroshiro64StarStar

Create a new Xoroshiro64StarStar. If seed is entirely 0, it will be mapped to a different seed.

fn seed_from_u64(seed: u64) -> Xoroshiro64StarStar

Seed a Xoroshiro64StarStar from a u64 using SplitMix64.

type Seed = [u8; 8]

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

fn from_rng(rng: &mut impl RngCore) -> Self

Create a new PRNG seeded from an infallible Rng.

fn try_from_rng<R>(rng: &mut R) -> Result<Self, <R as TryRngCore>::Error>

where R: TryRngCore,

Create a new PRNG seeded from a potentially fallible Rng.

fn from_os_rng() -> Self

Creates a new instance of the RNG seeded via getrandom.

fn try_from_os_rng() -> Result<Self, Error>

Creates a new instance of the RNG seeded via getrandom without unwrapping potential getrandom errors.

impl Eq for Xoroshiro64StarStar

impl StructuralPartialEq for Xoroshiro64StarStar