// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. fn main() { let &ref a = &[0i32] as &[_]; assert_eq!(a, &[0i32] as &[_]); let &ref a = "hello"; assert_eq!(a, "hello"); match "foo" { "fool" => unreachable!(), "foo" => {}, ref _x => unreachable!() } }