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 | |
---|
17 | template <typename Container> |
---|
18 | class shared_container_iterator : public iterator_adaptor< |
---|
19 | shared_container_iterator<Container>, |
---|
20 | typename Container::iterator> { |
---|
21 | |
---|
22 | typedef iterator_adaptor< |
---|
23 | shared_container_iterator<Container>, |
---|
24 | typename Container::iterator> super_t; |
---|
25 | |
---|
26 | typedef typename Container::iterator iterator_t; |
---|
27 | typedef boost::shared_ptr<Container> container_ref_t; |
---|
28 | |
---|
29 | container_ref_t container_ref; |
---|
30 | public: |
---|
31 | shared_container_iterator() { } |
---|
32 | |
---|
33 | shared_container_iterator(iterator_t const& x,container_ref_t const& c) : |
---|
34 | super_t(x), container_ref(c) { } |
---|
35 | |
---|
36 | |
---|
37 | }; |
---|
38 | |
---|
39 | template <typename Container> |
---|
40 | shared_container_iterator<Container> |
---|
41 | make_shared_container_iterator(typename Container::iterator iter, |
---|
42 | boost::shared_ptr<Container> const& container) { |
---|
43 | typedef shared_container_iterator<Container> iterator; |
---|
44 | return iterator(iter,container); |
---|
45 | } |
---|
46 | |
---|
47 | |
---|
48 | |
---|
49 | template <typename Container> |
---|
50 | std::pair< |
---|
51 | shared_container_iterator<Container>, |
---|
52 | shared_container_iterator<Container> > |
---|
53 | make_shared_container_range(boost::shared_ptr<Container> const& container) { |
---|
54 | return |
---|
55 | std::make_pair( |
---|
56 | make_shared_container_iterator(container->begin(),container), |
---|
57 | make_shared_container_iterator(container->end(),container)); |
---|
58 | } |
---|
59 | |
---|
60 | |
---|
61 | } // namespace boost |
---|
62 | #endif // SHARED_CONTAINER_ITERATOR_RG08102002_HPP |
---|