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Solve move semantics exercise 6 (#6)

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Jonathan Zernik 2022-06-07 00:24:09 -07:00 committed by GitHub
parent 52f25a7b62
commit 1b87ff5885
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1 changed files with 5 additions and 7 deletions
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exercises/move_semantics/move_semantics6.rs
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@ -2,24 +2,22 @@
// Make me compile! `rustlings hint move_semantics6` for hints // Make me compile! `rustlings hint move_semantics6` for hints
// You can't change anything except adding or removing references // You can't change anything except adding or removing references
// I AM NOT DONE
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(); data = data.to_uppercase();
println!("{}", data); println!("{}", data);
} }