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% Match
<small>There is a new edition of the book and this is an old link.</small>
> `match` allows us to compare a value against a series of patterns and then execute code based on which pattern matches.
> Patterns can be made up of literal values, variable names, wildcards, and many other things.
```rust
enum Coin {
Penny,
Nickel,
Dime,
Quarter,
}
fn value_in_cents(coin: Coin) -> u32 {
match coin {
Coin::Penny => 1,
Coin::Nickel => 5,
Coin::Dime => 10,
Coin::Quarter => 25,
}
}
```
---
Here are the relevant sections in the new and old books:
* **[in the current edition: Ch 6.02 — The `match` Control Flow Operator][2]**
* [in the current edition: Ch 18.00 — Patterns][3]
* <small>[In the first edition: Ch 3.14 — Match][1]</small>
[1]: https://doc.rust-lang.org/1.30.0/book/first-edition/match.html
[2]: ch06-02-match.html
[3]: ch18-00-patterns.html
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