# hamt
:construction: This library is under construction! :construction:

[![Build Status](https://travis-ci.org/rainbowbismuth/hamt-rs.svg?branch=master)](https://travis-ci.org/rainbowbismuth/hamt-rs)

[Documentation](http://rainbowbismuth.github.io/rustdoc/hamt/)

An implementation of a persistent hash array mapped trie in Rust, based on those found in the [unordered-containers](https://github.com/tibbe/unordered-containers) Haskell library.

There are four versions of the data structure, HamtRc which is limited to a single thread, and HamtArc which can be freely shared. As well as set versions, HamtSetRc and HamtSetArc.

# Examples
```rust
extern crate hamt;
use hamt::HamtRc;

let hamt = HamtRc::<isize,isize>::new().insert(&0, &1).insert(&1, &10).insert(&2, &100);
assert!(hamt.get(&1) == Option::Some(&10));
```

# Performance
Unknown :space_invader:.

# Planned features
* Useful functions like union, difference, intersection.