mirror of
https://github.com/rust-lang/rustlings.git
synced 2024-12-26 00:00:03 +03:00
24 lines
522 B
Rust
24 lines
522 B
Rust
#![allow(clippy::ptr_arg)]
|
|
|
|
fn main() {
|
|
let data = "Rust is great!".to_string();
|
|
|
|
get_char(&data);
|
|
|
|
string_uppercase(data);
|
|
}
|
|
|
|
// Borrows instead of taking ownership.
|
|
// It is recommended to use `&str` instead of `&String` here. But this is
|
|
// enough for now because we didn't handle strings yet.
|
|
fn get_char(data: &String) -> char {
|
|
data.chars().last().unwrap()
|
|
}
|
|
|
|
// Takes ownership instead of borrowing.
|
|
fn string_uppercase(mut data: String) {
|
|
data = data.to_uppercase();
|
|
|
|
println!("{data}");
|
|
}
|