| // Copyright 2017 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(catch_expr)] |
| |
| fn use_val<T: Sized>(_x: T) {} |
| |
| pub fn main() { |
| let cfg_res; |
| let _: Result<(), ()> = do catch { |
| Err(())?; |
| cfg_res = 5; |
| Ok::<(), ()>(())?; |
| use_val(cfg_res); |
| }; |
| assert_eq!(cfg_res, 5); //~ ERROR use of possibly uninitialized variable |
| } |
| |
