mirror of
https://github.com/boostorg/iterator.git
synced 2025-05-10 15:43:55 +00:00
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
// (C) Copyright Ronald Garcia 2002. Permission to copy, use, modify, sell and
|
|
// distribute this software is granted provided this copyright notice appears
|
|
// in all copies. This software is provided "as is" without express or implied
|
|
// warranty, and with no claim as to its suitability for any purpose.
|
|
|
|
// See http://www.boost.org/libs/utility/shared_container_iterator.html for documentation.
|
|
|
|
#ifndef SHARED_CONTAINER_ITERATOR_RG08102002_HPP
|
|
#define SHARED_CONTAINER_ITERATOR_RG08102002_HPP
|
|
|
|
#include "boost/iterator_adaptors.hpp"
|
|
#include "boost/shared_ptr.hpp"
|
|
#include <utility>
|
|
|
|
namespace boost {
|
|
|
|
template <typename Container>
|
|
struct shared_container_iterator_policies :
|
|
public boost::default_iterator_policies {
|
|
typedef boost::shared_ptr<Container> container_ref_t;
|
|
container_ref_t container_ref;
|
|
shared_container_iterator_policies(container_ref_t const& c) :
|
|
container_ref(c) { }
|
|
shared_container_iterator_policies() { }
|
|
};
|
|
|
|
|
|
template <typename Container>
|
|
class shared_container_iterator_generator {
|
|
typedef typename Container::iterator iterator;
|
|
typedef shared_container_iterator_policies<Container> policy;
|
|
public:
|
|
typedef boost::iterator_adaptor<iterator,policy> type;
|
|
};
|
|
|
|
template <typename Container>
|
|
typename shared_container_iterator_generator<Container>::type
|
|
make_shared_container_iterator(typename Container::iterator iter,
|
|
boost::shared_ptr<Container> const& container) {
|
|
typedef typename shared_container_iterator_generator<Container>::type
|
|
iterator;
|
|
typedef shared_container_iterator_policies<Container> policy;
|
|
return iterator(iter,policy(container));
|
|
}
|
|
|
|
template <typename Container>
|
|
std::pair<
|
|
typename shared_container_iterator_generator<Container>::type,
|
|
typename shared_container_iterator_generator<Container>::type>
|
|
make_shared_container_range(boost::shared_ptr<Container> const& container) {
|
|
return
|
|
std::make_pair(
|
|
make_shared_container_iterator(container->begin(),container),
|
|
make_shared_container_iterator(container->end(),container));
|
|
}
|
|
|
|
|
|
} // namespace boost
|
|
#endif // SHARED_CONTAINER_ITERATOR_RG08102002_HPP
|