671602c8c9
Closes #22781. Closes #23891. Closes #24956. Closes #25145. Closes #25693. Closes #26095. Closes #26459. Closes #27320. Closes #27895.
21 lines
651 B
Rust
21 lines
651 B
Rust
// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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macro_rules! id {
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($s: pat) => ($s);
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}
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fn main() {
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match (Some(123), Some(456)) {
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(id!(Some(a)), _) | (_, id!(Some(a))) => println!("{}", a),
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_ => (),
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}
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}
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