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1a4d82fc | 1 | // Copyright 2014 The Rust Project Developers. See the COPYRIGHT |
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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 |
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12 | |
13 | pub fn increment(x: usize) -> usize { | |
1a4d82fc | 14 | x + 1 |
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15 | } |
16 | ||
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17 | #[macro_export] |
18 | macro_rules! increment { | |
19 | ($x:expr) => ({ | |
20 | use $crate::increment; | |
21 | increment($x) | |
22 | }) | |
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23 | } |
24 | ||
25 | fn main() { | |
1a4d82fc | 26 | assert_eq!(increment!(3), 4); |
223e47cc | 27 | } |