// Copyright 2016 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. macro_rules! m { () => { 1 } } macro_rules! n { () => { 1 + m!() } } fn main() { let _: [u32; n!()] = [0, 0]; }