| A macro to evaluate, as a boolean, whether an expression matches a pattern. | |
| For users who build using only Rust 1.42 and newer, consider using [`std::matches`], which | |
| is included in the [standard library prelude] and thus is automatically in scope. | |
| [`std::matches`]: core::matches | |
| [standard library prelude]: https://doc.rust-lang.org/stable/reference/names/preludes.html |