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12 changes: 12 additions & 0 deletions src/fnv.rs
Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,18 @@ const PRIME: u32 = 0x1000193;
/// Specifically this implements the [FNV-1a hash].
///
/// [FNV-1a hash]: https://en.wikipedia.org/wiki/Fowler%E2%80%93Noll%E2%80%93Vo_hash_function#FNV-1a_hash
///
/// # Examples
///
/// ```
/// use core::hash::Hasher as _;
/// use hash32::{FnvHasher, Hasher as _};
///
/// let mut hasher: FnvHasher = Default::default();
/// hasher.write(b"Hello, World!");
///
/// println!("Hash is {:x}!", hasher.finish32());
/// ```
#[derive(Debug, Clone)]
pub struct FnvHasher {
state: u32,
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34 changes: 33 additions & 1 deletion src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -57,6 +57,38 @@
//!
//! This crate is guaranteed to compile on latest stable Rust. It *might* compile on older
//! versions but that may change in any new patch release.
//!
//! # Examples
//!
//! ```
//! use hash32::{FnvHasher, Hasher as _};
//!
//! #[derive(Hash)]
//! struct Person {
//! id: u32,
//! name: &'static str,
//! phone: u64,
//! }
//!
//! let person1 = Person {
//! id: 5,
//! name: "Janet",
//! phone: 555_666_7777,
//! };
//! let person2 = Person {
//! id: 5,
//! name: "Bob",
//! phone: 555_666_7777,
//! };
//!
//! assert!(calculate_hash(&person1) != calculate_hash(&person2));
//!
//! fn calculate_hash<T: core::hash::Hash>(t: &T) -> u32 {
//! let mut fnv: FnvHasher = Default::default();
//! t.hash(&mut fnv);
//! fnv.finish32()
//! }
//! ```

#![warn(
missing_docs,
Expand Down Expand Up @@ -86,7 +118,7 @@ mod murmur3;
/// # Examples
///
/// ```
/// use core::hash::{Hasher as _};
/// use core::hash::Hasher as _;
/// use hash32::{FnvHasher, Hasher as _};
///
/// let mut hasher: FnvHasher = Default::default();
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12 changes: 12 additions & 0 deletions src/murmur3.rs
Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,18 @@ use core::slice;
use crate::Hasher as _;

/// 32-bit `MurmurHash3` hasher
///
/// # Examples
///
/// ```
/// use core::hash::Hasher as _;
/// use hash32::{Hasher as _, Murmur3Hasher};
///
/// let mut hasher: Murmur3Hasher = Default::default();
/// hasher.write(b"Hello, World!");
///
/// println!("Hash is {:x}!", hasher.finish32());
/// ```
#[derive(Debug, Clone)]
pub struct Murmur3Hasher {
buf: Buffer,
Expand Down