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libcxx_old/test/std/utilities/utility/declval/declval.pass.cpp

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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// <utility>
// template <class T> typename add_rvalue_reference<T>::type declval() noexcept;
#include <utility>
#include <type_traits>
#include "test_macros.h"
class A
{
A(const A&);
A& operator=(const A&);
};
int main(int, char**)
{
static_assert((std::is_same<decltype(std::declval<A>()), A&&>::value), "");
return 0;
}