Function main

code/chapter03/deque.rs:65–81

()

}

fn main() {
    let mut d = Deque::new(4);
    let _r1 = d.add_front(1); let _r2 = d.add_front(2);
    let _r1 = d.add_rear(3); let _r2 = d.add_rear(4);
    if let Err(error) = d.add_front(5) {
        println!("add_front error: {error}");
    }

    if let Some(data) = d.remove_rear() {
        println!("remove data {data}");
    } else {
        println!("empty deque");
    }

    println!("size: {}, is_empyt: {}", d.size(), d.is_empty());
    println!("content: {:?}", d);
}