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 BOOST_SHARED_CONTAINER_ITERATOR_HPP
9 #define BOOST_SHARED_CONTAINER_ITERATOR_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:
shared_container_iterator()32 shared_container_iterator() { }
33
shared_container_iterator(iterator_t const & x,container_ref_t const & c)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>
make_shared_container_iterator(typename Container::iterator iter,boost::shared_ptr<Container> const & 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> >
make_shared_container_range(boost::shared_ptr<Container> const & 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
70