Struct SplitMix64

pub struct SplitMix64 { /* private fields */ }

A splitmix64 random number generator.

The splitmix algorithm is not suitable for cryptographic purposes, but is very fast and has a 64 bit state.

The algorithm used here is translated from the splitmix64.c reference source code by Sebastiano Vigna. For next_u32, a more efficient mixing function taken from dsiutils is used.

Trait Implementations

impl Clone for SplitMix64

fn clone(&self) -> SplitMix64

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SplitMix64

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

Formats the value using the given formatter.

impl PartialEq for SplitMix64

fn eq(&self, other: &SplitMix64) -> 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 SplitMix64

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 SplitMix64

fn from_seed(seed: [u8; 8]) -> SplitMix64

Create a new SplitMix64.

fn seed_from_u64(seed: u64) -> SplitMix64

Seed a SplitMix64 from a u64.

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 SplitMix64

impl StructuralPartialEq for SplitMix64