src/test/ui/const-eval/union_promotion.rs


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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.

#![allow(const_err)]

union Foo {
    a: &'static u32,
    b: usize,
}

fn main() {
    let x: &'static bool = &unsafe { //~ borrowed value does not live long enough
        Foo { a: &1 }.b == Foo { a: &2 }.b
    };
}