| // 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. |
| |
| fn transmute_lifetime<'a, 'b, T>(t: &'a (T,)) -> &'b T { |
| match (&t,) { //~ ERROR cannot infer an appropriate lifetime |
| ((u,),) => u, |
| } |
| } |
| |
| fn main() { |
| let x = { |
| let y = Box::new((42,)); |
| transmute_lifetime(&y) |
| }; |
| |
| println!("{}", x); |
| } |
