Struct FxHash 

pub struct FxHash { /* private fields */ }

Implementation of the FxHash algorithm.

This is a fast, non-cryptographic hash function, suitable for use in hash tables.

Implementations

impl FxHash

pub const fn new() -> Self

Creates a new FxHash instance with the default initial state.

pub const fn with_seed(seed: u64) -> Self

Creates a new FxHash instance with the given seed.

pub const fn update_const(&mut self, data: &[u8])

Updates the internal state with the given data.

pub const fn result_const(&self) -> u64

Returns the final hash value.

This function does not update the internal state, and thus FxHash can still be used afterwards.

pub const fn clone_const(&self) -> Self

Clones the FxHash instance.

Trait Implementations

impl Clone for FxHash

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for FxHash

fn default() -> Self

Returns the “default value” for a type.

impl HashFunction for FxHash

type Output = [u8; 8]

fn update(&mut self, data: impl AsRef<[u8]>)

Updates the internal state of the HashFunction with given data.

fn write_result(&self, output: &mut Self::Output)

Writes the final result to the output passed as ref parameter.

fn result(&self) -> Self::Output

A wrapper around HashFunction::write_result that returns the hash instead of writing it to output parameter.

impl Hasher for FxHash

fn finish(&self) -> u64

Returns the hash value for the values written so far.

fn write(&mut self, bytes: &[u8])

Writes some data into this Hasher.

fn write_u8(&mut self, i: u8)

Writes a single u8 into this hasher.

fn write_u16(&mut self, i: u16)

Writes a single u16 into this hasher.

fn write_u32(&mut self, i: u32)

Writes a single u32 into this hasher.

fn write_u64(&mut self, i: u64)

Writes a single u64 into this hasher.

fn write_u128(&mut self, i: u128)

Writes a single u128 into this hasher.

fn write_usize(&mut self, i: usize)

Writes a single usize into this hasher.

fn write_i8(&mut self, i: i8)

Writes a single i8 into this hasher.

fn write_i16(&mut self, i: i16)

Writes a single i16 into this hasher.

fn write_i32(&mut self, i: i32)

Writes a single i32 into this hasher.

fn write_i64(&mut self, i: i64)

Writes a single i64 into this hasher.

fn write_i128(&mut self, i: i128)

Writes a single i128 into this hasher.

fn write_isize(&mut self, i: isize)

Writes a single isize into this hasher.

fn write_length_prefix(&mut self, len: usize)

🔬This is a nightly-only experimental API. (hasher_prefixfree_extras)

Writes a length prefix into this hasher, as part of being prefix-free.

fn write_str(&mut self, s: &str)

🔬This is a nightly-only experimental API. (hasher_prefixfree_extras)

Writes a single str into this hasher.

impl ReprC for FxHash

const CHECK: ()

This field is used for const checks only.