1 | #include <iostream>
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2 | #include <vector>
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3 | #include <fstream>
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4 |
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5 | #include <boost/serialization/vector.hpp>
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6 | #include <boost/archive/xml_oarchive.hpp>
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7 | #include <boost/archive/xml_iarchive.hpp>
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8 |
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9 | struct dummy {
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10 | template<class Archive>
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11 | void serialize(Archive& ar, unsigned int version) {}
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12 | };
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13 |
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14 | int main() {
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15 | // One-level container
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16 | // For comparison only. This shows the expected behaviour.
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17 | {
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18 | std::cout << "One-level vector:" << std::endl;
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19 | std::vector<dummy> l(1);
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20 | dummy* pd = &l.back();
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21 | {
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22 | std::ofstream ofs("one_level.xml");
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23 | boost::archive::xml_oarchive oa(ofs);
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24 | oa << BOOST_SERIALIZATION_NVP(l) << BOOST_SERIALIZATION_NVP(pd);
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25 | }
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26 | {
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27 | std::ifstream ifs("one_level.xml");
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28 | boost::archive::xml_iarchive ia(ifs);
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29 | ia >> BOOST_SERIALIZATION_NVP(l) >> BOOST_SERIALIZATION_NVP(pd);
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30 | }
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31 | std::cout << &l.back() << " " << pd << std::endl;
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32 | }
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33 |
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34 | std::cout << std::endl;
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35 |
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36 | // Two-level container
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37 | // This is buggy.
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38 | {
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39 | std::cout << "Two-level vector:" <<std::endl;
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40 | std::vector<std::vector<dummy>> l(1, std::vector<dummy>(1));
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41 | dummy* pd = &l.back().back();
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42 | std::cout << pd << std::endl;
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43 | {
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44 | std::ofstream ofs("two_level.xml");
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45 | boost::archive::xml_oarchive oa(ofs);
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46 | oa << BOOST_SERIALIZATION_NVP(l) << BOOST_SERIALIZATION_NVP(pd);
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47 | }
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48 | {
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49 | std::ifstream ifs("two_level.xml");
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50 | boost::archive::xml_iarchive ia(ifs);
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51 | ia >> BOOST_SERIALIZATION_NVP(l) >> BOOST_SERIALIZATION_NVP(pd);
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52 | }
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53 | std::cout << &l.back().back() << " " << pd << std::endl;
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54 | }
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55 |
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56 | return 0;
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57 | }
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58 |
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