//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: c++98, c++03, c++11, c++14

// template <class T> constexpr add_const<T>& as_const(T& t) noexcept;      // C++17
// template <class T>           add_const<T>& as_const(const T&&) = delete; // C++17

#include <utility>

struct S {int i;};

int main(int, char**)
{
    std::as_const(S{});

  return 0;
}
