rustlings/exercises/06_move_semantics/move_semantics6.rs

27 lines
530 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);
}