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1 // (C) Copyright Ronald Garcia 2002. Permission to copy, use, modify, sell and
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2 // distribute this software is granted provided this copyright notice appears
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3 // in all copies. This software is provided "as is" without express or implied
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4 // warranty, and with no claim as to its suitability for any purpose.
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5
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6 // See http://www.boost.org/libs/utility/shared_container_iterator.html for documentation.
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7
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8 #ifndef SHARED_CONTAINER_ITERATOR_RG08102002_HPP
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9 #define SHARED_CONTAINER_ITERATOR_RG08102002_HPP
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10
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11 #include "boost/iterator_adaptors.hpp"
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12 #include "boost/shared_ptr.hpp"
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13 #include <utility>
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14
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15 namespace boost {
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16
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17 template <typename Container>
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18 class shared_container_iterator : public iterator_adaptor<
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19 shared_container_iterator<Container>,
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20 typename Container::iterator> {
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21
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22 typedef iterator_adaptor<
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23 shared_container_iterator<Container>,
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24 typename Container::iterator> super_t;
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25
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26 typedef typename Container::iterator iterator_t;
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27 typedef boost::shared_ptr<Container> container_ref_t;
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28
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29 container_ref_t container_ref;
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30 public:
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31 shared_container_iterator() { }
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32
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33 shared_container_iterator(iterator_t const& x,container_ref_t const& c) :
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34 super_t(x), container_ref(c) { }
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35
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36
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37 };
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38
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39 template <typename Container>
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40 shared_container_iterator<Container>
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41 make_shared_container_iterator(typename Container::iterator iter,
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42 boost::shared_ptr<Container> const& container) {
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43 typedef shared_container_iterator<Container> iterator;
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44 return iterator(iter,container);
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45 }
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46
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47
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48
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49 template <typename Container>
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50 std::pair<
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51 shared_container_iterator<Container>,
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52 shared_container_iterator<Container> >
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53 make_shared_container_range(boost::shared_ptr<Container> const& container) {
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54 return
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55 std::make_pair(
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56 make_shared_container_iterator(container->begin(),container),
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57 make_shared_container_iterator(container->end(),container));
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58 }
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59
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60
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61 } // namespace boost
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62 #endif // SHARED_CONTAINER_ITERATOR_RG08102002_HPP
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