| // Copyright 2012 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| |
| use std::cmp::Ordering; |
| |
| // Test default methods in PartialOrd and PartialEq |
| // |
| #[derive(Debug)] |
| struct Fool(bool); |
| |
| impl PartialEq for Fool { |
| fn eq(&self, other: &Fool) -> bool { |
| let Fool(this) = *self; |
| let Fool(other) = *other; |
| this != other |
| } |
| } |
| |
| struct Int(isize); |
| |
| impl PartialEq for Int { |
| fn eq(&self, other: &Int) -> bool { |
| let Int(this) = *self; |
| let Int(other) = *other; |
| this == other |
| } |
| } |
| |
| impl PartialOrd for Int { |
| fn partial_cmp(&self, other: &Int) -> Option<Ordering> { |
| let Int(this) = *self; |
| let Int(other) = *other; |
| this.partial_cmp(&other) |
| } |
| } |
| |
| struct RevInt(isize); |
| |
| impl PartialEq for RevInt { |
| fn eq(&self, other: &RevInt) -> bool { |
| let RevInt(this) = *self; |
| let RevInt(other) = *other; |
| this == other |
| } |
| } |
| |
| impl PartialOrd for RevInt { |
| fn partial_cmp(&self, other: &RevInt) -> Option<Ordering> { |
| let RevInt(this) = *self; |
| let RevInt(other) = *other; |
| other.partial_cmp(&this) |
| } |
| } |
| |
| pub fn main() { |
| assert!(Int(2) > Int(1)); |
| assert!(Int(2) >= Int(1)); |
| assert!(Int(1) >= Int(1)); |
| assert!(Int(1) < Int(2)); |
| assert!(Int(1) <= Int(2)); |
| assert!(Int(1) <= Int(1)); |
| |
| assert!(RevInt(2) < RevInt(1)); |
| assert!(RevInt(2) <= RevInt(1)); |
| assert!(RevInt(1) <= RevInt(1)); |
| assert!(RevInt(1) > RevInt(2)); |
| assert!(RevInt(1) >= RevInt(2)); |
| assert!(RevInt(1) >= RevInt(1)); |
| |
| assert_eq!(Fool(true), Fool(false)); |
| assert!(Fool(true) != Fool(true)); |
| assert!(Fool(false) != Fool(false)); |
| assert_eq!(Fool(false), Fool(true)); |
| } |