Struct SeedableRandomState 

pub struct SeedableRandomState { /* private fields */ }

A BuildHasher for quality::FoldHasher that is randomly initialized by default, but can also be initialized with a specific seed.

This can be useful for e.g. testing, but the downside is that this type has a size of 16 bytes rather than the 8 bytes RandomState is.

Implementations

impl SeedableRandomState

pub fn random() -> SeedableRandomState

Generates a random SeedableRandomState, similar to RandomState.

pub fn fixed() -> SeedableRandomState

Generates a fixed SeedableRandomState, similar to FixedState.

pub fn with_seed( per_hasher_seed: u64, shared_seed: &'static SharedSeed, ) -> SeedableRandomState

Generates a SeedableRandomState with the given per-hasher seed and SharedSeed.

Trait Implementations

impl BuildHasher for SeedableRandomState

type Hasher = FoldHasher<'static>

Type of the hasher that will be created.

fn build_hasher(&self) -> FoldHasher<'static>

Creates a new hasher.

fn hash_one<T>(&self, x: T) -> u64

where T: Hash, Self: Sized, Self::Hasher: Hasher,

Calculates the hash of a single value.

impl Clone for SeedableRandomState

fn clone(&self) -> SeedableRandomState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SeedableRandomState

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

Formats the value using the given formatter.

impl Default for SeedableRandomState

fn default() -> SeedableRandomState

Returns the “default value” for a type.