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1 | // Copyright 2013 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
b7449926 | 11 | // run-pass |
1a4d82fc | 12 | macro_rules! print_hd_tl { |
970d7e83 | 13 | ($field_hd:ident, $($field_tl:ident),+) => ({ |
1a4d82fc JJ |
14 | print!("{}", stringify!($field_hd)); |
15 | print!("::["); | |
970d7e83 | 16 | $( |
1a4d82fc JJ |
17 | print!("{}", stringify!($field_tl)); |
18 | print!(", "); | |
970d7e83 | 19 | )+ |
b039eaaf | 20 | print!("]\n"); |
970d7e83 | 21 | }) |
1a4d82fc | 22 | } |
223e47cc | 23 | |
1a4d82fc | 24 | pub fn main() { |
970d7e83 | 25 | print_hd_tl!(x, y, z, w) |
223e47cc | 26 | } |