rustlings/move_semantics/move_semantics1.rs

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2018-02-22 09:09:53 +03:00
// move_semantics1.rs
// 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 10,
// right? The fix for this is going to be adding one keyword, and the addition is NOT on line 10
// where the error is.