rustlings/exercises/move_semantics/move_semantics6.rs

// move_semantics6.rs
// Make me compile! `rustlings hint move_semantics6` for hints
// You can't change anything except adding or removing references

fn main() {
    let data = String::from("Rust is great!");

    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) {
    let data = &data.to_uppercase();
    println!("{}", data);
}