Function main

publication/code/chapter04/lvec.rs:188–229

()

}

fn main() {
    basic();
    iter();

    fn basic() {
        let mut lvec1: LVec<i32> = LVec::new();
        lvec1.push(10); lvec1.push(11);
        lvec1.push(12); lvec1.push(13);
        lvec1.insert(0,9);

        lvec1.print_lvec();

        let mut lvec2: LVec<i32> = LVec::new();
        lvec2.insert(0, 8);
        lvec2.append(&mut lvec1);

        println!("len: {}", lvec2.len());
        println!("pop {:?}", lvec2.pop().unwrap());
        println!("remove {:?}", lvec2.remove(0).unwrap());

        lvec2.print_lvec();
        lvec2.clear();
        lvec2.print_lvec();
    }

    fn iter() {
        let mut lvec: LVec<i32> = LVec::new();
        lvec.push(10); lvec.push(11);
        lvec.push(12); lvec.push(13);

        let sum1 = lvec.iter().sum::<i32>();
        let mut addend = 0;
        for item in lvec.iter_mut() {
            *item += 1;
            addend += 1;
        }
        let sum2 = lvec.iter().sum::<i32>();
        println!("{sum1} + {addend} = {sum2}");

        assert_eq!(50, lvec.into_iter().sum::<i32>());
    }
}