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- // Copyright 2016, 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/map.hpp>
- #include <boost/mp11/list.hpp>
- #include <boost/mp11/integral.hpp>
- #include <boost/core/lightweight_test_trait.hpp>
- #include <type_traits>
- #include <tuple>
- #include <utility>
- using boost::mp11::mp_int;
- template<class T, class U> using inc = mp_int<U::value + 1>;
- int main()
- {
- using boost::mp11::mp_map_update;
- using boost::mp11::mp_list;
- using M1 = mp_list<>;
- using M2 = mp_map_update< M1, std::pair<char, mp_int<0>>, inc >;
- BOOST_TEST_TRAIT_TRUE((std::is_same<M2, mp_list<std::pair<char, mp_int<0>>>>));
- using M3 = mp_map_update< M2, std::pair<char, mp_int<0>>, inc >;
- BOOST_TEST_TRAIT_TRUE((std::is_same<M3, mp_list<std::pair<char, mp_int<1>>>>));
- using M4 = mp_map_update< M3, std::pair<int, mp_int<0>>, inc >;
- BOOST_TEST_TRAIT_TRUE((std::is_same<M4, mp_list<std::pair<char, mp_int<1>>, std::pair<int, mp_int<0>>>>));
- using M5 = mp_map_update< M4, std::pair<long, mp_int<0>>, inc >;
- BOOST_TEST_TRAIT_TRUE((std::is_same<M5, mp_list<std::pair<char, mp_int<1>>, std::pair<int, mp_int<0>>, std::pair<long, mp_int<0>>>>));
- using M6 = mp_map_update< M5, std::pair<long, mp_int<0>>, inc >;
- BOOST_TEST_TRAIT_TRUE((std::is_same<M6, mp_list<std::pair<char, mp_int<1>>, std::pair<int, mp_int<0>>, std::pair<long, mp_int<1>>>>));
- using M7 = mp_map_update< M6, std::pair<char, mp_int<0>>, inc >;
- BOOST_TEST_TRAIT_TRUE((std::is_same<M7, mp_list<std::pair<char, mp_int<2>>, std::pair<int, mp_int<0>>, std::pair<long, mp_int<1>>>>));
- return boost::report_errors();
- }
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