YouTipOwnership
let s1 = String::from("hello");
let s2 = s1; // s1 is moved, no longer valid
// println!("{}", s1); // Error!
let s3 = s2.clone(); // explicit copyBorrowing
fn print_len(s: &String) {
println!("{}", s.len());
}
let s = String::from("hello");
print_len(&s); // borrow
println!("{}", s); // still validSummary
- Each value has one owner
- & borrows without taking ownership