Struct std::hash::SipHasher

pub struct SipHasher(SipHasher24);

👎Deprecated since 1.13.0: use std::collections::hash_map::DefaultHasher instead

An implementation of SipHash 2-4.

See: https://131002.net/siphash/

SipHash is a general-purpose hashing function: it runs at a good speed (competitive with Spooky and City) and permits strong keyed hashing. This lets you key your hash tables from a strong RNG, such as rand::os::OsRng.

Although the SipHash algorithm is considered to be generally strong, it is not intended for cryptographic purposes. As such, all cryptographic uses of this implementation are strongly discouraged.

Tuple Fields

0: SipHasher24

👎Deprecated since 1.13.0: use std::collections::hash_map::DefaultHasher instead

Implementations

impl SipHasher

pub fn new() -> SipHasher

👎Deprecated since 1.13.0: use std::collections::hash_map::DefaultHasher instead

Creates a new SipHasher with the two initial keys set to 0.

pub fn new_with_keys(key0: u64, key1: u64) -> SipHasher

👎Deprecated since 1.13.0: use std::collections::hash_map::DefaultHasher instead

Creates a SipHasher that is keyed off the provided keys.

Trait Implementations

impl Clone for SipHasher

fn clone(&self) -> SipHasher

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SipHasher

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

Formats the value using the given formatter.

impl Default for SipHasher

fn default() -> SipHasher

Returns the “default value” for a type.

impl Hasher for SipHasher

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

Writes some data into this Hasher.

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

🔬This is a nightly-only experimental API. (hasher_prefixfree_extras #96762)

Writes a single str into this hasher.

fn finish(&self) -> u64

Returns the hash value for the values written so far.

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 #96762)

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