rmsr11.rs

fn valid_flow() {
    let value = "abc".to_string();  // crate value
    let borrow = &value;            // create borrow
    println!("{}", value);          // use value without moving it
    println!("{}", borrow);         // use borrow
                                    // delete borrow
                                    // delete value safely, because
                                    // it's no longer borrowed 
}