% Structs

<small>There is a new edition of the book and this is an old link.</small>

> A _struct_ is a custom data type that lets us name and package together multiple related values that make up a meaningful group.

```rust
struct User {
    username: String,
    email: String,
    sign_in_count: u64,
    active: bool,
}
```

---

Here are the relevant sections in the new and old books:

* **[In second edition: Ch 5.00 — Structs][2]**
* <small>[In the first edition: Ch 3.12 — Structs][1]</small>


[1]: https://doc.rust-lang.org/1.30.0/book/first-edition/structs.html
[2]: ch05-00-structs.html