| // Copyright 2012 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| fn foo(a: Option<usize>, b: Option<usize>) { |
| match (a,b) { |
| //~^ ERROR: non-exhaustive patterns: `(None, None)` not covered |
| (Some(a), Some(b)) if a == b => { } |
| (Some(_), None) | |
| (None, Some(_)) => { } |
| } |
| } |
| |
| fn main() { |
| foo(None, None); |
| } |
