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// 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::PartialEq;
pub trait MyNum : Add<Self,Self> + Sub<Self,Self> + Mul<Self,Self> + PartialEq {
}
#[deriving(Show)]
pub struct MyInt {
pub val: int
}
impl Add<MyInt, MyInt> for MyInt {
fn add(&self, other: &MyInt) -> MyInt { mi(self.val + other.val) }
}
impl Sub<MyInt, MyInt> for MyInt {
fn sub(&self, other: &MyInt) -> MyInt { mi(self.val - other.val) }
}
impl Mul<MyInt, MyInt> for MyInt {
fn mul(&self, other: &MyInt) -> MyInt { mi(self.val * other.val) }
}
impl PartialEq for MyInt {
fn eq(&self, other: &MyInt) -> bool { self.val == other.val }
fn ne(&self, other: &MyInt) -> bool { !self.eq(other) }
}
impl MyNum for MyInt {}
fn mi(v: int) -> MyInt { MyInt { val: v } }
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