An implementation of union-find in Rust; extracted from (and used by) rustc.
The name "ena" comes from the Greek word for "one".
By default, you just get the union-find implementation. You can also opt-in to the following experimental features:
bench: use to run benchmarks (cargo bench --features bench)
Like rustc itself, this code is dual-licensed under the MIT and Apache licenses. Pull requests, comments, and other contributions are assumed to imply consent to those terms. Moreover, it is understood that any changes here may well be used in rustc itself under the same terms.