Struct Mwc256XXA64 

pub struct Mwc256XXA64 { /* private fields */ }

A PCG random number generator (MWC X A 256/64 variant).

Permuted Congruential Generator with 256-bit state, internal multiply with carry Generator, and 64-bit output via a xor and an add.

Implementations

impl Mwc256XXA64

pub fn new(k1: u64, k2: u64) -> Self

Construct an instance given two keys.

Trait Implementations

impl Clone for Mwc256XXA64

fn clone(&self) -> Mwc256XXA64

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Mwc256XXA64

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

Formats the value using the given formatter.

impl PartialEq for Mwc256XXA64

fn eq(&self, other: &Mwc256XXA64) -> 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 Mwc256XXA64

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 Mwc256XXA64

We use a single 249-bit seed to initialise the state and select a stream. One seed bit (lowest bit of seed[8]) is ignored.

type Seed = [u8; 32]

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

fn from_seed(seed: Self::Seed) -> Self

Create a new PRNG using the given seed.

fn seed_from_u64(state: u64) -> Self

Create a new PRNG using a u64 seed.

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

where R: RngCore,

Create a new PRNG seeded from another Rng.

impl Eq for Mwc256XXA64

impl StructuralPartialEq for Mwc256XXA64