1 | #include <boost/range/adaptor/transformed.hpp>
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2 | #include <boost/range/adaptor/type_erased.hpp>
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3 | #include <iostream>
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4 | #include <vector>
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5 |
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6 | using namespace boost::adaptors;
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7 | using namespace std;
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8 |
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9 | int addOne(int b) {
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10 | return b + 1;
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11 | }
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12 |
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13 | int main(int, char**) {
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14 | vector<int> nums{ 1, 2, 3 };
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15 |
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16 | auto result1 = nums | transformed(addOne) | type_erased<int, boost::forward_traversal_tag>();
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17 | auto result2 = nums | transformed(addOne);
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18 | auto result3 = nums | type_erased<int, boost::forward_traversal_tag>();
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19 |
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20 | for (auto n : result1)
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21 | cout << n << " ";
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22 | cout << endl;
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23 |
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24 | for (auto n : result2)
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25 | cout << n << " ";
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26 | cout << endl;
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27 |
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28 | for (auto n : result3)
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29 | cout << n << " ";
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30 | cout << endl;
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31 | }
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