| // Copyright 2015 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::ops::Add; |
| fn show(z: i32) { |
| println!("{}", z) |
| } |
| fn main() { |
| let x = 23; |
| let y = 42; |
| show(Add::add( x, y)); |
| show(Add::add( x, &y)); |
| show(Add::add(&x, y)); |
| show(Add::add(&x, &y)); |
| show( x + y); |
| show( x + &y); |
| show(&x + y); |
| show(&x + &y); |
| } |