# Crossbeam Skiplist [![Build Status](https://github.com/crossbeam-rs/crossbeam/workflows/CI/badge.svg)]( https://github.com/crossbeam-rs/crossbeam/actions) [![License](https://img.shields.io/badge/license-MIT_OR_Apache--2.0-blue.svg)]( https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-skiplist#license) [![Cargo](https://img.shields.io/crates/v/crossbeam-skiplist.svg)]( https://crates.io/crates/crossbeam-skiplist) [![Documentation](https://docs.rs/crossbeam-skiplist/badge.svg)]( https://docs.rs/crossbeam-skiplist) [![Rust 1.61+](https://img.shields.io/badge/rust-1.61+-lightgray.svg)]( https://www.rust-lang.org) [![chat](https://img.shields.io/discord/569610676205781012.svg?logo=discord)](https://discord.com/invite/JXYwgWZ) This crate provides the types [`SkipMap`] and [`SkipSet`]. These data structures provide an interface similar to `BTreeMap` and `BTreeSet`, respectively, except they support safe concurrent access across multiple threads. This crate can be used in `no_std` environments that implement `alloc`. The `alloc` feature of this crate needs to be enabled in `no_std` environments. [`SkipMap`]: https://docs.rs/crossbeam-skiplist/latest/crossbeam_skiplist/struct.SkipMap.html [`SkipSet`]: https://docs.rs/crossbeam-skiplist/latest/crossbeam_skiplist/struct.SkipSet.html ## Usage Add this to your `Cargo.toml`: ```toml [dependencies] crossbeam-skiplist = "0.1" ``` ## Compatibility Crossbeam Skiplist supports stable Rust releases going back at least six months, and every time the minimum supported Rust version is increased, a new minor version is released. Currently, the minimum supported Rust version is 1.61. ## License Licensed under either of * Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) * MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) at your option. #### Contribution Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.