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- // Copyright 2017 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/algorithm.hpp>
- #include <boost/mp11/utility.hpp>
- #include <boost/mp11/list.hpp>
- #include <boost/mp11/detail/config.hpp>
- #include <boost/core/lightweight_test_trait.hpp>
- using boost::mp11::mp_transform;
- using boost::mp11::mp_list;
- using boost::mp11::mp_valid;
- template<class...> using F = void;
- template<class... L> using transform = mp_transform<F, L...>;
- int main()
- {
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform>));
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void>));
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void, void>));
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void, void, void>));
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void, void, void, void>));
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, void, void, void, void, void>));
- #if !BOOST_MP11_WORKAROUND( BOOST_MP11_MSVC, <= 1800 )
- BOOST_TEST_TRAIT_TRUE((mp_valid<transform, mp_list<>>));
- #endif
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, mp_list<>, mp_list<void>>));
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, mp_list<>, mp_list<>, mp_list<void>>));
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, mp_list<>, mp_list<>, mp_list<>, mp_list<void>>));
- BOOST_TEST_TRAIT_FALSE((mp_valid<transform, mp_list<>, mp_list<>, mp_list<>, mp_list<>, mp_list<void>>));
- return boost::report_errors();
- }
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