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Solved a few move exercises (#3)

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Jonathan Zernik 2022-06-04 22:20:55 -07:00 committed by GitHub
parent 7a6b39125e
commit 84a6c64b2a
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 32 additions and 12 deletions
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4
exercises/move_semantics/move_semantics1.rs
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@ -1,12 +1,10 @@
// move_semantics1.rs
// Make me compile! Execute `rustlings hint move_semantics1` for hints :)
// I AM NOT DONE
fn main() {
let vec0 = Vec::new();
let vec1 = fill_vec(vec0);
let mut vec1 = fill_vec(vec0);
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);

40
exercises/move_semantics/move_semantics2.rs
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@ -2,27 +2,49 @@
// Make me compile without changing line 13 or moving line 10!
// Execute `rustlings hint move_semantics2` for hints :)
// I AM NOT DONE
fn main() {
let vec0 = Vec::new();
//let vec0 = Vec::new();
let mut vec0 = Vec::new();
let mut vec1 = fill_vec(vec0);
//let mut vec1 = fill_vec(vec0);
//let mut vec1 = fill_vec(vec0.clone());
//let mut vec1 = fill_vec(&vec0);
fill_vec(&mut vec0);
// Do not change the following line!
println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0);
vec1.push(88);
//vec1.push(88);
vec0.push(88);
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
//println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0);
}
fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
let mut vec = vec;
// fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
// let mut vec = vec;
// vec.push(22);
// vec.push(44);
// vec.push(66);
// vec
// }
// fn fill_vec(vec: &Vec<i32>) -> Vec<i32> {
// let mut vec = vec.clone();
// vec.push(22);
// vec.push(44);
// vec.push(66);
// vec
// }
fn fill_vec(vec: &mut Vec<i32>) -> () {
vec.push(22);
vec.push(44);
vec.push(66);
vec
()
}