1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: c++03, c++11, c++14
10
11// template <class T> constexpr add_const<T>& as_const(T& t) noexcept; // C++17
12// template <class T> add_const<T>& as_const(const T&&) = delete; // C++17
13
14#include <utility>
15
16struct S {int i;};
17
18int main(int, char**)
19{
20 std::as_const(S{});
21
22 return 0;
23}
24

source code of libcxx/test/std/utilities/utility/as_const/as_const.compile.fail.cpp