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Refactor fill_vec function to accept a mutable reference

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Rock070 2023-12-17 16:17:24 +08:00
parent 1c51ad049f
commit a898c058fc
1 changed files with 3 additions and 5 deletions
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8
exercises/06_move_semantics/move_semantics3.rs
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@ -6,19 +6,17 @@
// Execute `rustlings hint move_semantics3` or use the `hint` watch subcommand
// for a hint.
// I AM NOT DONE
#[test]
fn main() {
let vec0 = vec![22, 44, 66];
let mut vec1 = fill_vec(vec0);
let vec1 = fill_vec(&mut vec0.clone());
assert_eq!(vec1, vec![22, 44, 66, 88]);
}
fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
fn fill_vec(vec: &mut Vec<i32>) -> Vec<i32> {
vec.push(88);
vec
vec.to_vec()
}