23 lines
634 B
Rust
23 lines
634 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! foo {
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($y:expr) => ({
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$y = 2;
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})
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}
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#[allow(unused_variables)]
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#[allow(unused_assignments)]
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fn main() {
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let mut x = 1;
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foo!(x);
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}
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