williamr@2: //
williamr@2: // Boost.Pointer Container
williamr@2: //
williamr@2: //  Copyright Thorsten Ottosen 2003-2005. Use, modification and
williamr@2: //  distribution is subject to the Boost Software License, Version
williamr@2: //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
williamr@2: //  http://www.boost.org/LICENSE_1_0.txt)
williamr@2: //
williamr@2: // For more information, see http://www.boost.org/libs/ptr_container/
williamr@2: //
williamr@2: 
williamr@2: #ifndef BOOST_PTR_CONTAINER_MAP_ITERATOR_HPP
williamr@2: #define BOOST_PTR_CONTAINER_MAP_ITERATOR_HPP
williamr@2: 
williamr@2: #if defined(_MSC_VER) && (_MSC_VER >= 1200)
williamr@2: # pragma once
williamr@2: #endif
williamr@2: 
williamr@2: #include <boost/config.hpp>
williamr@2: #include <boost/iterator/iterator_adaptor.hpp>
williamr@2: #include <utility>
williamr@2: 
williamr@2: namespace boost
williamr@2: { 
williamr@2:     namespace ptr_container_detail
williamr@2:     {
williamr@2:         template< class F, class S >
williamr@2:         struct ref_pair
williamr@2:         {
williamr@2:             typedef F first_type;
williamr@2:             typedef S second_type;
williamr@2: 
williamr@2:             const F& first;
williamr@2:             S        second;
williamr@2: 
williamr@2:             template< class F2, class S2 >
williamr@2:             ref_pair( const std::pair<F2,S2>& p )
williamr@2:             : first(p.first), second(static_cast<S>(p.second))
williamr@2:             { }
williamr@2: 
williamr@2:             template< class RP >
williamr@2:             ref_pair( const RP* rp )
williamr@2:             : first(rp->first), second(rp->second)
williamr@2:             { }
williamr@2:             
williamr@2:             const ref_pair* const operator->() const
williamr@2:             {
williamr@2:                 return this;
williamr@2:             }
williamr@2:         };
williamr@2:     }
williamr@2:     
williamr@2:     template< 
williamr@2:               class I, // base iterator 
williamr@2:               class F, // first type, key type
williamr@2:               class S  // second type, mapped type
williamr@2:             > 
williamr@2:     class ptr_map_iterator : 
williamr@2:         public boost::iterator_adaptor< ptr_map_iterator<I,F,S>, I, 
williamr@2:                                         ptr_container_detail::ref_pair<F,S>, 
williamr@2:                                         use_default, 
williamr@2:                                         ptr_container_detail::ref_pair<F,S> >
williamr@2:     {
williamr@2:         typedef boost::iterator_adaptor< ptr_map_iterator<I,F,S>, I, 
williamr@2:                                          ptr_container_detail::ref_pair<F,S>,
williamr@2:                                          use_default, 
williamr@2:                                          ptr_container_detail::ref_pair<F,S> > 
williamr@2:             base_type;
williamr@2: 
williamr@2: 
williamr@2:     public:
williamr@2:         ptr_map_iterator() : base_type()                                 
williamr@2:         { }
williamr@2:         
williamr@2:         explicit ptr_map_iterator( const I& i ) : base_type(i)
williamr@2:         { }
williamr@2: 
williamr@2:         template< class I2, class F2, class S2 >
williamr@2:             ptr_map_iterator( const ptr_map_iterator<I2,F2,S2>& r ) 
williamr@2:          : base_type(r.base())
williamr@2:         { }
williamr@2:         
williamr@2:    }; // class 'ptr_map_iterator'
williamr@2: 
williamr@2: }
williamr@2: 
williamr@2: #endif