rust/src/test/ui/run-pass/ctfe/tuple-struct-constructors.rs

// 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.

// https://github.com/rust-lang/rust/issues/41898

use std::num::NonZeroU64;

fn main() {
    const FOO: NonZeroU64 = unsafe { NonZeroU64::new_unchecked(2) };
    if let FOO = FOO {}
}