#[std]

struct Date {
    let m: num,
        d: num,
        y: num;

    fn new(m: num, d: num, y: num) -> Date {
        putstr("Date is movable: ");
        putboolln(is_movable(Date));
        return [m, d, y]
    }

    fn birthday() -> Date {
        return Date::new(5, 14, 2002);
    }
}


struct A {
    let x: #
    fn new(x: &num) -> A {
        putstr("A is movable: ");
        putboolln(is_movable(A));
        return x as A;
    }
}

struct Test {
    let first: Date,
        second: Date;

    fn new(first: Date, second: Date) -> Test {
        putstr("Test is movable: ");
        putboolln(is_movable(Test));
        return [first, second];
    }
}


fn print_date(d: Date) {
    putnum(d->m);
    putchar('/');
    putnum(d->d);
    putchar('/');
    putnumln(d->y);
}

fn add_one(d: Date) -> Date {
    d->m += 1;
    return d;
}

fn main() {
    let d = Date::birthday();

    print_date(d);
    d->d += 1;
    print_date(d);
    d->d += 1;
    print_date(d);
    
    let test = add_one(d);
    print_date(test);
}