#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    let a = [1, 2, 3];
    let x = &a[1] as *const _;
    let y = &5 as *const _;
    assert!(a.as_ptr_range().contains(& x));
    assert!(! a.as_ptr_range().contains(& y));
}