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1 | // (C) Copyright Ronald Garcia 2002. Permission to copy, use, modify, sell and |
2 | // distribute this software is granted provided this copyright notice appears | |
3 | // in all copies. This software is provided "as is" without express or implied | |
4 | // warranty, and with no claim as to its suitability for any purpose. | |
5 | ||
6 | // See http://www.boost.org/libs/utility/shared_container_iterator.html for documentation. | |
7 | ||
8 | #ifndef SHARED_CONTAINER_ITERATOR_RG08102002_HPP | |
9 | #define SHARED_CONTAINER_ITERATOR_RG08102002_HPP | |
10 | ||
11 | #include "boost/iterator_adaptors.hpp" | |
12 | #include "boost/shared_ptr.hpp" | |
13 | #include <utility> | |
14 | ||
15 | namespace boost { | |
16 | namespace iterators { | |
17 | ||
18 | template <typename Container> | |
19 | class shared_container_iterator : public iterator_adaptor< | |
20 | shared_container_iterator<Container>, | |
21 | typename Container::iterator> { | |
22 | ||
23 | typedef iterator_adaptor< | |
24 | shared_container_iterator<Container>, | |
25 | typename Container::iterator> super_t; | |
26 | ||
27 | typedef typename Container::iterator iterator_t; | |
28 | typedef boost::shared_ptr<Container> container_ref_t; | |
29 | ||
30 | container_ref_t container_ref; | |
31 | public: | |
32 | shared_container_iterator() { } | |
33 | ||
34 | shared_container_iterator(iterator_t const& x,container_ref_t const& c) : | |
35 | super_t(x), container_ref(c) { } | |
36 | ||
37 | ||
38 | }; | |
39 | ||
40 | template <typename Container> | |
41 | inline shared_container_iterator<Container> | |
42 | make_shared_container_iterator(typename Container::iterator iter, | |
43 | boost::shared_ptr<Container> const& container) { | |
44 | typedef shared_container_iterator<Container> iterator; | |
45 | return iterator(iter,container); | |
46 | } | |
47 | ||
48 | ||
49 | ||
50 | template <typename Container> | |
51 | inline std::pair< | |
52 | shared_container_iterator<Container>, | |
53 | shared_container_iterator<Container> > | |
54 | make_shared_container_range(boost::shared_ptr<Container> const& container) { | |
55 | return | |
56 | std::make_pair( | |
57 | make_shared_container_iterator(container->begin(),container), | |
58 | make_shared_container_iterator(container->end(),container)); | |
59 | } | |
60 | ||
61 | } // namespace iterators | |
62 | ||
63 | using iterators::shared_container_iterator; | |
64 | using iterators::make_shared_container_iterator; | |
65 | using iterators::make_shared_container_range; | |
66 | ||
67 | } // namespace boost | |
68 | ||
69 | #endif // SHARED_CONTAINER_ITERATOR_RG08102002_HPP |