# unreachable > An unreachable code optimization hint in stable rust. ## [Documentation](https://crates.fyi/crates/unreachable/0.1.1) ## Usage Use the crates.io repository; add this to your `Cargo.toml` along with the rest of your dependencies: ```toml [dependencies] unreachable = "0.1" ``` ## Author [Jonathan Reem](https://medium.com/@jreem) is the primary author and maintainer of unreachable. ## 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.