38 lines
1.8 KiB
C++
38 lines
1.8 KiB
C++
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// Copyright 2017 Peter Dimov.
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//
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// Distributed under the Boost Software License, Version 1.0.
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//
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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#include <boost/mp11/map.hpp>
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#include <boost/mp11/list.hpp>
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#include <boost/core/lightweight_test_trait.hpp>
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#include <type_traits>
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#include <tuple>
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#include <utility>
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int main()
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{
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using boost::mp11::mp_map_keys;
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using boost::mp11::mp_list;
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<mp_list<>>, mp_list<>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<std::tuple<>>, std::tuple<>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<mp_list<std::pair<int, int const>>>, mp_list<int>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<std::tuple<std::pair<int, int const>>>, std::tuple<int>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<mp_list<std::pair<int, int const>, std::pair<long, long const>>>, mp_list<int, long>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<std::tuple<std::pair<int, int const>, std::pair<long, long const>>>, std::tuple<int, long>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<std::pair<std::pair<int, int const>, std::pair<long, long const>>>, std::pair<int, long>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<mp_list<mp_list<int>, mp_list<long, long>, mp_list<long long, long long, long long>>>, mp_list<int, long, long long>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<std::tuple<mp_list<int>, mp_list<long, long>, mp_list<long long, long long, long long>>>, std::tuple<int, long, long long>>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_map_keys<std::tuple<std::tuple<int>, std::pair<long, long>, std::tuple<long long, long long, long long>>>, std::tuple<int, long, long long>>));
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return boost::report_errors();
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}
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