did chap 6 move sem.

This commit is contained in:
Script_Kitty 2024-03-03 12:03:09 +00:00
parent 8594bab0d3
commit bc75421cda
6 changed files with 19 additions and 19 deletions

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@ -3,7 +3,7 @@
// Execute `rustlings hint move_semantics1` or use the `hint` watch subcommand // Execute `rustlings hint move_semantics1` or use the `hint` watch subcommand
// for a hint. // for a hint.
// I AM NOT DONE
#[test] #[test]
fn main() { fn main() {
@ -15,7 +15,7 @@ fn main() {
} }
fn fill_vec(vec: Vec<i32>) -> Vec<i32> { fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
let vec = vec; let mut vec = vec;
vec.push(88); vec.push(88);

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@ -5,22 +5,22 @@
// Execute `rustlings hint move_semantics2` or use the `hint` watch subcommand // Execute `rustlings hint move_semantics2` or use the `hint` watch subcommand
// for a hint. // for a hint.
// I AM NOT DONE
#[test] #[test]
fn main() { fn main() {
let vec0 = vec![22, 44, 66]; 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!(vec0, vec![22, 44, 66]);
assert_eq!(vec1, vec![22, 44, 66, 88]); assert_eq!(vec1, vec![22, 44, 66, 88]);
} }
fn fill_vec(vec: Vec<i32>) -> Vec<i32> { fn fill_vec(vec: &Vec<i32>) -> Vec<i32> {
let mut vec = vec; let mut vecn = vec.clone();
vec.push(88); vecn.push(88);
vec vecn
} }

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@ -6,7 +6,7 @@
// Execute `rustlings hint move_semantics3` or use the `hint` watch subcommand // Execute `rustlings hint move_semantics3` or use the `hint` watch subcommand
// for a hint. // for a hint.
// I AM NOT DONE
#[test] #[test]
fn main() { fn main() {
@ -17,7 +17,7 @@ fn main() {
assert_eq!(vec1, vec![22, 44, 66, 88]); 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.push(88);
vec vec

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@ -13,7 +13,7 @@
fn main() { fn main() {
let vec0 = vec![22, 44, 66]; 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]); assert_eq!(vec1, vec![22, 44, 66, 88]);
} }
@ -21,7 +21,7 @@ fn main() {
// `fill_vec()` no longer takes `vec: Vec<i32>` as argument - don't change this! // `fill_vec()` no longer takes `vec: Vec<i32>` as argument - don't change this!
fn fill_vec() -> Vec<i32> { fn fill_vec() -> Vec<i32> {
// Instead, let's create and fill the Vec in here - how do you do that? // 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); vec.push(88);

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@ -6,14 +6,14 @@
// Execute `rustlings hint move_semantics5` or use the `hint` watch subcommand // Execute `rustlings hint move_semantics5` or use the `hint` watch subcommand
// for a hint. // for a hint.
// I AM NOT DONE
#[test] #[test]
fn main() { fn main() {
let mut x = 100; let mut x = 100;
let y = &mut x; let y = &mut x;
let z = &mut x; //let z = &mut x;
*y += 100; *y += 1100;
*z += 1000; //*z += 1000;
assert_eq!(x, 1200); assert_eq!(x, 1200);
} }

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@ -10,19 +10,19 @@
fn main() { fn main() {
let data = "Rust is great!".to_string(); let data = "Rust is great!".to_string();
get_char(data); get_char(&data);
string_uppercase(&data); string_uppercase(&data);
} }
// Should not take ownership // Should not take ownership
fn get_char(data: String) -> char { fn get_char(data: &String) -> char {
data.chars().last().unwrap() data.chars().last().unwrap()
} }
// Should take ownership // Should take ownership
fn string_uppercase(mut data: &String) { fn string_uppercase(mut data: &String) {
data = &data.to_uppercase(); let data = &data.to_uppercase();
println!("{}", data); println!("{}", data);
} }