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1 | // Copyright 2012-2013 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 | ||
b039eaaf | 11 | // Check that a constant-evaluation underflow highlights the correct |
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12 | // spot (where the underflow occurred), while also providing the |
13 | // overall context for what caused the evaluation. | |
14 | ||
15 | const ONE: usize = 1; | |
16 | const TWO: usize = 2; | |
17 | const LEN: usize = ONE - TWO; | |
54a0048b | 18 | //~^ ERROR array length constant evaluation error: attempted to subtract with overflow [E0250] |
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19 | |
20 | fn main() { | |
21 | let a: [i8; LEN] = unimplemented!(); | |
22 | //~^ NOTE for array length here | |
23 | } |