WyHash2

A simple, light and fast hashing algorithm written by Wang Yi. Ported to rust for your ease of use.

Thanks also goes to Eldruin their WyHash was very helpful for reference on getting started.

Features

• nightly which enables some nightly only intrinsicts which can help improve performance.

• std This is enabled by default, however can be disabled for no_std enviroments

Usage

A basic example:

use core::hash::Hasher;
use wyhash2::WyHash;

fn main() {
    let secret = 0;
    let mut hasher = WyHash::with_seed(secret);
    hasher.write(&[0, 1, 2]);
    println!("We got {}", hasher.finish());
}

Wyhash2 Implements BuildHasher which means it can be used as the hasher for the Hashmap

Usage with a Hashmap:

use wyhash2::WyHash;
use std::collections::HashMap;

fn main() {
    let hasher = WyHash::with_seed(0);
    let mut map: HashMap<String, String, WyHash> = HashMap::with_hasher(hasher);

    map.insert("Hello".to_string(), "World".to_string());

    println!("We got {}", map.get("Hello").unwrap());
}

no_std usage

[dependencies]
wyhash2 = { version = "...", default-features = false }

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.