display_container_i32.rs

use std::iter::FromIterator;

impl std::fmt::Display for heap::ArrayHeap<i32> {
    fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
        let x = std::vec::Vec::from_iter(self.items().iter().map(|x| x.to_string())).join(",");
        std::fmt::Display::fmt(&x, f)
    }
}