Ownership

Ownership is Rust’s most unique feature.

• rules
• copy vs move
• example
• clone

---

rules

1. Each value has an owner
2. Only one owner at a time
3. When owner goes out of scope, value is dropped

copy vs move

Type	Behavior
i32, bool, f64	Copied — stack types
String, Vec	Moved — heap types

example

fn main() {
    let s1 = String::from("hello");
    let s2 = s1;
    println!("{}", s2);
}

clone

let s1 = String::from("hello");
let s2 = s1.clone();
println!("{} {}", s1, s2);