//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <functional>
// reference_wrapper
// reference_wrapper(T&&) = delete;
#include <functional>
#include <cassert>
int main(int, char**)
{
std::reference_wrapper<const int> r(3);
return 0;
}