rustlings/exercises/move_semantics/move_semantics6.rs

27 lines
529 B
Rust

// move_semantics6.rs
//
// You can't change anything except adding or removing references.
//
// Execute `rustlings hint move_semantics6` or use the `hint` watch subcommand
// for a hint.
fn main() {
let data = "Rust is great!".to_string();
get_char(&data);
string_uppercase(data);
}
// Should not take ownership
fn get_char(data: &String) -> char {
data.chars().last().unwrap()
}
// Should take ownership
fn string_uppercase(mut data: String) {
data = data.to_uppercase();
println!("{}", data);
}