23 lines
650 B
Rust
23 lines
650 B
Rust
|
// Copyright 2013 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.
|
||
|
|
||
|
#![feature(never_type)]
|
||
|
#![deny(unreachable_code)]
|
||
|
#![deny(unreachable_patterns)]
|
||
|
|
||
|
fn bar(x: Result<!, i32>) -> Result<u32, i32> {
|
||
|
x?
|
||
|
}
|
||
|
|
||
|
fn main() {
|
||
|
let _ = bar(Err(123));
|
||
|
}
|
||
|
|