#![allow(dead_code, deprecated, unused_variables, unused_mut)]
#![feature(new_range_api)]
use core::range::RangeInclusive;
fn main() {
    assert!(! RangeInclusive::from(3.0..= 5.0).is_empty());
    assert!(RangeInclusive::from(3.0..= f32::NAN).is_empty());
    assert!(RangeInclusive::from(f32::NAN..= 5.0).is_empty());
}