1 | #include <boost/multi_index_container.hpp>
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2 | #include <boost/multi_index/ranked_index.hpp>
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3 | #include <boost/multi_index/hashed_index.hpp>
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4 | #include <boost/multi_index/ordered_index.hpp>
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5 | #include <boost/multi_index/member.hpp>
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6 | #include <boost/container/flat_set.hpp>
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7 |
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8 |
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9 | struct multi_index_thing
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10 | {
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11 | int a;
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12 | int b;
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13 | int c;
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14 | };
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15 |
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16 | typedef boost::multi_index::multi_index_container<
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17 | multi_index_thing,
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18 | boost::multi_index::indexed_by<
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19 | boost::multi_index::ranked_non_unique<
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20 | boost::multi_index::member<multi_index_thing, int, &multi_index_thing::a>,
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21 | std::less<int>
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22 | >,
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23 | boost::multi_index::ranked_non_unique<
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24 | boost::multi_index::member<multi_index_thing, int, &multi_index_thing::b>,
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25 | std::less<int>
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26 | >,
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27 | boost::multi_index::ranked_non_unique<
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28 | boost::multi_index::member<multi_index_thing, int, &multi_index_thing::c>,
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29 | std::less<int>
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30 | >
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31 | >
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32 | > MultiIndex;
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33 |
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34 | int main() {
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35 | MultiIndex multi_index;
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36 | auto& a_index = multi_index.get<0>();
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37 | a_index.upper_bound_rank(0);
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38 | auto& b_index = multi_index.get<1>();
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39 | b_index.upper_bound_rank(0);
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40 | auto& c_index = multi_index.get<2>();
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41 | c_index.upper_bound_rank(0);
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42 | }
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