src/bin/tut1c.rs

// Structs, Borrowing

#![allow(dead_code)]

use rust_tutorial::*;

fn greet_person(p: &Person) {
    println!("Hello {} ({})!", p.name, p.age);
}

fn birthday(p: &mut Person) {
    p.age += 1;
}

fn main() {
    // -- Struct instantiation --
    let mut p = Person {
        age: 30,
        name: "Mary".to_string(),
    };

    greet_person(&p);
    greet_person(&p);

    birthday(&mut p);

    greet_person(&p);
}