| // 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 <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. |
| |
| macro_rules! print_hd_tl { |
| ($field_hd:ident, $($field_tl:ident),+) => ({ |
| print!("{}", stringify!($field_hd)); |
| print!("::["); |
| $( |
| print!("{}", stringify!($field_tl)); |
| print!(", "); |
| )+ |
| print!("]\n"); |
| }) |
| } |
| |
| pub fn main() { |
| print_hd_tl!(x, y, z, w) |
| } |
