// Copyright 2013 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. #![feature(macro_rules)] #[cfg(foo)] macro_rules! foo( () => (1i) ) #[cfg(not(foo))] macro_rules! foo( () => (2i) ) pub fn main() { assert_eq!(foo!(), 2i); }