// Copyright 2016 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.

// Regression test: even though `Ok` is dead-code, its type needs to
// be influenced by the result of `Err` or else we get a "type
// variable unconstrained" error.

fn main() {
    let _ = if false {
        Ok(return)
    } else {
        Err("")
    };
}