// Copyright 2014 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // ignore-pretty #![feature(macro_rules)] macro_rules! third(($e:expr)=>({let x = 2; $e[x]})); fn main() { let x = vec!(10u,11u,12u,13u); let t = third!(x); assert_eq!(t,12u); }