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- // Copyright 2015 Peter Dimov.
- //
- // Distributed under the Boost Software License, Version 1.0.
- //
- // See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt
- #include <boost/mp11/utility.hpp>
- #include <boost/core/lightweight_test_trait.hpp>
- #include <type_traits>
- struct X {};
- int main()
- {
- using boost::mp11::mp_identity;
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_identity<void const volatile>::type, void const volatile>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_identity<void()>::type, void()>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_identity<int const[]>::type, int const[]>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_identity<X>::type, X>));
- using boost::mp11::mp_identity_t;
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_identity_t<void const volatile>, void const volatile>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_identity_t<void()>, void()>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_identity_t<int const[]>, int const[]>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_identity_t<X>, X>));
- return boost::report_errors();
- }
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