102 lines
3.9 KiB
C++
102 lines
3.9 KiB
C++
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// Copyright 2019 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/algorithm.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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int main()
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{
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using boost::mp11::mp_list;
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using boost::mp11::mp_flatten;
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using boost::mp11::mp_transform;
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{
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using L1 = mp_list<>;
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using L2 = mp_list<void>;
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using L3 = mp_list<void, void>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L1>, L1>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L2>, L2>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L3>, L3>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L1, L1>, L1>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L2, L2>, L2>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L3, L3>, L3>));
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using L4 = mp_transform<mp_list, L3>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L4>, L3>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L4, mp_list<>>, L3>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L4, std::tuple<>>, L4>));
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using L5 = mp_transform<std::tuple, L3>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L5>, L5>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L5, mp_list<>>, L5>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L5, std::tuple<>>, L3>));
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}
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{
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using L1 = std::tuple<>;
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using L2 = std::tuple<void>;
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using L3 = std::tuple<void, void>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L1>, L1>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L2>, L2>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L3>, L3>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L1, L1>, L1>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L2, L2>, L2>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L3, L3>, L3>));
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using L4 = mp_transform<mp_list, L3>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L4>, L4>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L4, mp_list<>>, L3>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L4, std::tuple<>>, L4>));
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using L5 = mp_transform<std::tuple, L3>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L5>, L3>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L5, mp_list<>>, L5>));
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BOOST_TEST_TRAIT_TRUE((std::is_same<mp_flatten<L5, std::tuple<>>, L3>));
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}
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{
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using L1 = mp_list<std::tuple<>, int, mp_list<>, void, mp_list<char, double>, std::pair<int, void>>;
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using R1 = mp_flatten<L1>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R1, mp_list<std::tuple<>, int, void, char, double, std::pair<int, void>>>));
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using R2 = mp_flatten<L1, std::pair<void, void>>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R2, mp_list<std::tuple<>, int, mp_list<>, void, mp_list<char, double>, int, void>>));
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using R3 = mp_flatten<L1, std::tuple<>>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R3, mp_list<int, mp_list<>, void, mp_list<char, double>, std::pair<int, void>>>));
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}
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{
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using L1 = std::tuple<std::tuple<>, int, mp_list<>, void, mp_list<char, double>, std::pair<int, void>>;
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using R1 = mp_flatten<L1, mp_list<void, void, void, void>>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R1, std::tuple<std::tuple<>, int, void, char, double, std::pair<int, void>>>));
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using R2 = mp_flatten<L1, std::pair<void, void>>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R2, std::tuple<std::tuple<>, int, mp_list<>, void, mp_list<char, double>, int, void>>));
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using R3 = mp_flatten<L1>;
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BOOST_TEST_TRAIT_TRUE((std::is_same<R3, std::tuple<int, mp_list<>, void, mp_list<char, double>, std::pair<int, void>>>));
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}
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return boost::report_errors();
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}
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