[][src]Struct ahash::AHasher

pub struct AHasher { /* fields omitted */ }

A Hasher for hashing an arbitrary stream of bytes.

Instances of AHasher represent state that is updated while hashing data.

Each method updates the internal state based on the new data provided. Once all of the data has been provided, the resulting hash can be obtained by calling finish()

Clone is also provided in case you wish to calculate hashes for two different items that start with the same data.

Methods

impl AHasher[src]

pub fn new_with_keys(key0: u64, key1: u64) -> AHasher[src]

Creates a new hasher keyed to the provided keys.

Example

use std::hash::Hasher;
use ahash::AHasher;

let mut hasher = AHasher::new_with_keys(123, 456);

hasher.write_u32(1989);
hasher.write_u8(11);
hasher.write_u8(9);
hasher.write(b"Huh?");

println!("Hash is {:x}!", hasher.finish());

Trait Implementations

impl Default for AHasher[src]

Provides a Hasher is typically used (e.g. by HashMap) to create AHashers for each key such that they are hashed independently of one another, since AHashers contain state.

Constructs a new AHasher with compile time generated constants keys. So the key will be the same from one instance to another, but different from build to the next. So if it is possible for a potential attacker to have access to your compiled binary it would be better to specify keys generated at runtime.

Examples

use ahash::AHasher;
use std::hash::Hasher;

let mut hasher_1 = AHasher::default();
let mut hasher_2 = AHasher::default();

hasher_1.write_u32(8128);
hasher_2.write_u32(8128);

assert_eq!(hasher_1.finish(), hasher_2.finish());

impl Clone for AHasher[src]

fn clone_from(&mut self, source: &Self)
1.0.0
[src]

Performs copy-assignment from source. Read more

impl Debug for AHasher[src]

impl Hasher for AHasher[src]

Provides methods to hash all of the primitive types.

fn write_i8(&mut self, i: i8)
1.3.0
[src]

Writes a single i8 into this hasher.

fn write_i16(&mut self, i: i16)
1.3.0
[src]

Writes a single i16 into this hasher.

fn write_i32(&mut self, i: i32)
1.3.0
[src]

Writes a single i32 into this hasher.

fn write_i64(&mut self, i: i64)
1.3.0
[src]

Writes a single i64 into this hasher.

fn write_i128(&mut self, i: i128)
1.26.0
[src]

Writes a single i128 into this hasher.

fn write_isize(&mut self, i: isize)
1.3.0
[src]

Writes a single isize into this hasher.

Auto Trait Implementations

impl Send for AHasher

impl Sync for AHasher

Blanket Implementations

impl<T, U> Into for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

impl<T> From for T[src]

impl<T, U> TryFrom for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized
[src]

impl<T> BorrowMut for T where
    T: ?Sized
[src]

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Any for T where
    T: 'static + ?Sized
[src]