rustlings/move_semantics/move_semantics1.rs

43 lines
658 B
Rust
Raw Normal View History

// Make me compile! Scroll down for hints :)
pub fn main() {
let vec0 = Vec::new();
let vec1 = fill_vec(vec0);
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
vec1.push(88);
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
}
fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
let mut vec = vec;
vec.push(22);
vec.push(44);
vec.push(66);
vec
}
// So you've got the "cannot borrow immutable local variable `vec1` as mutable" error on line 8,
// right? The fix for this is going to be adding one keyword, and the addition is NOT on line 8
// where the error is.