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// Copyright 2018 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.
// compile-pass
#![crate_type="lib"]
#![feature(never_type)]
#![allow(dead_code)]
#![allow(unreachable_code)]
#![allow(unused_variables)]
struct Foo;
pub fn f(x: !) -> ! {
x
}
pub fn ub() {
// This is completely undefined behaviour,
// but we still want to make sure it compiles.
let x: ! = unsafe {
std::mem::transmute::<Foo, !>(Foo)
};
f(x)
}
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