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Publish Comprehensive Rust 🦀

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Martin Geisler
2022-12-21 16:36:30 +01:00
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# Box with Recursive Data Structures
Recursive data types or data types with dynamic sizes need to use a `Box`:
```rust,editable
#[derive(Debug)]
enum List<T> {
Cons(T, Box<List<T>>),
Nil,
}
fn main() {
let list: List<i32> = List::Cons(1, Box::new(List::Cons(2, Box::new(List::Nil))));
println!("{list:?}");
}
```
```bob
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