#![allow(dead_code, deprecated, unused_variables, unused_mut)]
use std::iter;
fn main() {
    let v: Vec<i32> = Vec::with_capacity(123);
    let mut it = iter::repeat_n(v, 5);
    for i in 0..4 {
        let cloned = it.next().unwrap();
        assert_eq!(cloned.len(), 0);
        assert_eq!(cloned.capacity(), 0);
    }
    let last = it.next().unwrap();
    assert_eq!(last.len(), 0);
    assert_eq!(last.capacity(), 123);
    assert_eq!(None, it.next());
}