| 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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