#![allow(unused_variables)]
#![allow(boxed_slice_into_iter)]
fn main() {
    let boxed_slice: Box<[i32]> = vec![0; 3].into_boxed_slice();
    for item in boxed_slice.into_iter().enumerate() {
        let (i, x): (usize, &i32) = item;
        println!("boxed_slice[{i}] = {x}");
    }
    for item in boxed_slice.iter().enumerate() {
        let (i, x): (usize, &i32) = item;
        println!("boxed_slice[{i}] = {x}");
    }
    for item in IntoIterator::into_iter(boxed_slice).enumerate() {
        let (i, x): (usize, i32) = item;
        println!("boxed_slice[{i}] = {x}");
    }
}