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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// 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()
{
std::as_const(S{});
}
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