struct Noisy;

impl Noisy {
    fn new() -> Noisy {
        println!("constructed");
        Noisy {}
    }
}

impl Drop for Noisy {
    fn drop(&mut self) {
        println!("destructed")
    }
}

fn f() -> [Noisy; 3] {
    let v = [Noisy::new(), Noisy::new(), Noisy::new()];
    v
}

fn main() {
    let v1 = f();
    println!("v1.size() = {}", v1.len());

    let v2 = v1;
    println!("v2.size() = {}", v2.len());

    println!("size_of Noisy: {}", std::mem::size_of::<Noisy>());
}