// Binop corner cases

fn test_nil() {
    assert_eq!((), ());
    assert!((!(() != ())));
    assert!((!(() < ())));
    assert!((() <= ()));
    assert!((!(() > ())));
    assert!((() >= ()));
}

fn test_bool() {
    assert!((!(true < false)));
    assert!((!(true <= false)));
    assert!((true > false));
    assert!((true >= false));

    assert!((false < true));
    assert!((false <= true));
    assert!((!(false > true)));
    assert!((!(false >= true)));

    // Bools support bitwise binops
    assert_eq!(false & false, false);
    assert_eq!(true & false, false);
    assert_eq!(true & true, true);
    assert_eq!(false | false, false);
    assert_eq!(true | false, true);
    assert_eq!(true | true, true);
    assert_eq!(false ^ false, false);
    assert_eq!(true ^ false, true);
    assert_eq!(true ^ true, false);
}

fn test_ptr() {
    unsafe {
        let p1: *const u8 = ::std::mem::transmute(0_usize);
        let p2: *const u8 = ::std::mem::transmute(0_usize);
        let p3: *const u8 = ::std::mem::transmute(1_usize);

        assert_eq!(p1, p2);
        assert!(p1 != p3);
        assert!(p1 < p3);
        assert!(p1 <= p3);
        assert!(p3 > p1);
        assert!(p3 >= p3);
        assert!(p1 <= p2);
        assert!(p1 >= p2);
    }
}

#[derive(PartialEq, Debug)]
struct P {
    x: isize,
    y: isize,
}

fn p(x: isize, y: isize) -> P {
    P {
        x: x,
        y: y
    }
}

fn test_class() {
  let q = p(1, 2);
  let mut r = p(1, 2);

  assert_eq!(q, r);
  r.y = 17;
  assert!((r.y != q.y));
  assert_eq!(r.y, 17);
  assert!((q != r));
}

pub fn main() {
    test_nil();
    test_bool();
    test_ptr();
    test_class();
}