#![allow(dead_code, deprecated, unused_variables, unused_mut)]
fn main() {
    assert!((..5).contains(&- 1_000_000_000));
    assert!((..5).contains(& 4));
    assert!(! (..5).contains(& 5));
    assert!((..1.0).contains(& 0.5));
    assert!(! (..1.0).contains(& f32::NAN));
    assert!(! (..f32::NAN).contains(& 0.5));
}