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- // Copyright 2015, 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/list.hpp>
- #include <boost/core/lightweight_test_trait.hpp>
- #include <type_traits>
- #include <tuple>
- #include <utility>
- struct X1 {};
- struct X2 {};
- struct X3 {};
- int main()
- {
- using boost::mp11::mp_list;
- using boost::mp11::mp_assign;
- using L1 = mp_list<int, void(), float[]>;
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, mp_list<>>, mp_list<>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, mp_list<X1>>, mp_list<X1>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, mp_list<X1, X2>>, mp_list<X1, X2>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, mp_list<X1, X2, X3>>, mp_list<X1, X2, X3>>));
- //
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, std::tuple<>>, mp_list<>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, std::tuple<X1>>, mp_list<X1>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, std::tuple<X1, X2>>, mp_list<X1, X2>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, std::tuple<X1, X2, X3>>, mp_list<X1, X2, X3>>));
- //
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L1, std::pair<X1, X2>>, mp_list<X1, X2>>));
- //
- using L2 = std::tuple<int, char, float>;
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L2, mp_list<>>, std::tuple<>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L2, mp_list<X1>>, std::tuple<X1>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L2, mp_list<X1, X2>>, std::tuple<X1, X2>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L2, mp_list<X1, X2, X3>>, std::tuple<X1, X2, X3>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L2, std::pair<X1, X2>>, std::tuple<X1, X2>>));
- //
- using L3 = std::pair<int, char>;
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L3, mp_list<X1, X2>>, std::pair<X1, X2>>));
- BOOST_TEST_TRAIT_TRUE((std::is_same<mp_assign<L3, std::pair<X1, X2>>, std::pair<X1, X2>>));
- //
- return boost::report_errors();
- }
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