move_semantics done
This commit is contained in:
parent
de06209a13
commit
b01f35fed6
|
@ -3,7 +3,6 @@
|
|||
// Execute `rustlings hint move_semantics1` or use the `hint` watch subcommand
|
||||
// for a hint.
|
||||
|
||||
// I AM NOT DONE
|
||||
|
||||
#[test]
|
||||
fn main() {
|
||||
|
@ -15,7 +14,7 @@ fn main() {
|
|||
}
|
||||
|
||||
fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
|
||||
let vec = vec;
|
||||
let mut vec = vec;
|
||||
|
||||
vec.push(88);
|
||||
|
||||
|
|
|
@ -5,20 +5,19 @@
|
|||
// Execute `rustlings hint move_semantics2` 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 mut vec1 = fill_vec(&vec0);
|
||||
|
||||
assert_eq!(vec0, vec![22, 44, 66]);
|
||||
assert_eq!(vec1, vec![22, 44, 66, 88]);
|
||||
}
|
||||
|
||||
fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
|
||||
let mut vec = vec;
|
||||
fn fill_vec(vec: &Vec<i32>) -> Vec<i32> {
|
||||
let mut vec = vec.to_vec();
|
||||
|
||||
vec.push(88);
|
||||
|
||||
|
|
|
@ -6,7 +6,6 @@
|
|||
// Execute `rustlings hint move_semantics3` or use the `hint` watch subcommand
|
||||
// for a hint.
|
||||
|
||||
// I AM NOT DONE
|
||||
|
||||
#[test]
|
||||
fn main() {
|
||||
|
@ -17,7 +16,7 @@ fn main() {
|
|||
assert_eq!(vec1, vec![22, 44, 66, 88]);
|
||||
}
|
||||
|
||||
fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
|
||||
fn fill_vec(mut vec: Vec<i32>) -> Vec<i32> {
|
||||
vec.push(88);
|
||||
|
||||
vec
|
||||
|
|
|
@ -7,13 +7,10 @@
|
|||
// Execute `rustlings hint move_semantics4` 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 mut vec1 = fill_vec();
|
||||
|
||||
assert_eq!(vec1, vec![22, 44, 66, 88]);
|
||||
}
|
||||
|
@ -21,7 +18,7 @@ fn main() {
|
|||
// `fill_vec()` no longer takes `vec: Vec<i32>` as argument - don't change this!
|
||||
fn fill_vec() -> Vec<i32> {
|
||||
// Instead, let's create and fill the Vec in here - how do you do that?
|
||||
let mut vec = vec;
|
||||
let mut vec = vec![22, 44, 66];
|
||||
|
||||
vec.push(88);
|
||||
|
||||
|
|
|
@ -6,14 +6,13 @@
|
|||
// Execute `rustlings hint move_semantics5` or use the `hint` watch subcommand
|
||||
// for a hint.
|
||||
|
||||
// I AM NOT DONE
|
||||
|
||||
#[test]
|
||||
fn main() {
|
||||
let mut x = 100;
|
||||
let y = &mut x;
|
||||
let z = &mut x;
|
||||
*y += 100;
|
||||
let z = &mut x;
|
||||
*z += 1000;
|
||||
assert_eq!(x, 1200);
|
||||
}
|
||||
|
|
|
@ -5,24 +5,23 @@
|
|||
// Execute `rustlings hint move_semantics6` or use the `hint` watch subcommand
|
||||
// for a hint.
|
||||
|
||||
// I AM NOT DONE
|
||||
|
||||
fn main() {
|
||||
let data = "Rust is great!".to_string();
|
||||
|
||||
get_char(data);
|
||||
get_char(&data);
|
||||
|
||||
string_uppercase(&data);
|
||||
string_uppercase(data);
|
||||
}
|
||||
|
||||
// Should not take ownership
|
||||
fn get_char(data: String) -> char {
|
||||
fn get_char(data: &String) -> char {
|
||||
data.chars().last().unwrap()
|
||||
}
|
||||
|
||||
// Should take ownership
|
||||
fn string_uppercase(mut data: &String) {
|
||||
data = &data.to_uppercase();
|
||||
fn string_uppercase(mut data: String) {
|
||||
data = data.to_uppercase();
|
||||
|
||||
println!("{}", data);
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue