49 lines
1.7 KiB
C++
49 lines
1.7 KiB
C++
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// Copyright 2016, 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/mp11/integral.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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using boost::mp11::mp_int;
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template<class T, class U> using inc = mp_int<U::value + 1>;
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int main()
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{
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using boost::mp11::mp_map_update;
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using boost::mp11::mp_list;
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using M1 = mp_list<>;
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using M2 = mp_map_update< M1, std::pair<char, mp_int<0>>, inc >;
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BOOST_TEST_TRAIT_TRUE((std::is_same<M2, mp_list<std::pair<char, mp_int<0>>>>));
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using M3 = mp_map_update< M2, std::pair<char, mp_int<0>>, inc >;
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BOOST_TEST_TRAIT_TRUE((std::is_same<M3, mp_list<std::pair<char, mp_int<1>>>>));
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using M4 = mp_map_update< M3, std::pair<int, mp_int<0>>, inc >;
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BOOST_TEST_TRAIT_TRUE((std::is_same<M4, mp_list<std::pair<char, mp_int<1>>, std::pair<int, mp_int<0>>>>));
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using M5 = mp_map_update< M4, std::pair<long, mp_int<0>>, inc >;
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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>>>>));
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using M6 = mp_map_update< M5, std::pair<long, mp_int<0>>, inc >;
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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>>>>));
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using M7 = mp_map_update< M6, std::pair<char, mp_int<0>>, inc >;
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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>>>>));
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return boost::report_errors();
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}
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