133 lines
3.7 KiB
C++
133 lines
3.7 KiB
C++
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//
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// Boost.Pointer Container
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//
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// Copyright Thorsten Ottosen 2003-2005. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// For more information, see http://www.boost.org/libs/ptr_container/
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//
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#ifndef BOOST_PTR_CONTAINER_MAP_ITERATOR_HPP
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#define BOOST_PTR_CONTAINER_MAP_ITERATOR_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif
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#include <boost/config.hpp>
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#include <boost/iterator/iterator_adaptor.hpp>
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#include <boost/utility/compare_pointees.hpp>
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#include <utility>
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#if defined(BOOST_MSVC)
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# pragma warning(push)
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# pragma warning(disable:4512) // Assignment operator could not be generated.
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#endif
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namespace boost
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{
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namespace ptr_container_detail
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{
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template< class F, class S >
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struct ref_pair
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{
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typedef F first_type;
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typedef S second_type;
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const F& first;
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S second;
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template< class F2, class S2 >
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ref_pair( const std::pair<F2,S2>& p )
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: first(p.first), second(static_cast<S>(p.second))
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{ }
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template< class RP >
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ref_pair( const RP* rp )
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: first(rp->first), second(rp->second)
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{ }
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const ref_pair* const operator->() const
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{
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return this;
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}
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friend inline bool operator==( ref_pair l, ref_pair r )
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{
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return l.first == r.first &&
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boost::equal_pointees( l.second, r.second );
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}
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friend inline bool operator!=( ref_pair l, ref_pair r )
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{
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return !( l == r );
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}
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friend inline bool operator<( ref_pair l, ref_pair r )
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{
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if( l.first == r.first )
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return boost::less_pointees( l.second, r.second );
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else
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return l.first < r.first;
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}
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friend inline bool operator>( ref_pair l, ref_pair r )
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{
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return r < l;
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}
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friend inline bool operator<=( ref_pair l, ref_pair r )
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{
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return !(r < l);
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}
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friend inline bool operator>=( ref_pair l, ref_pair r )
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{
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return !(l < r);
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}
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};
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}
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template<
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class I, // base iterator
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class F, // first type, key type
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class S // second type, mapped type
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>
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class ptr_map_iterator :
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public boost::iterator_adaptor< ptr_map_iterator<I,F,S>, I,
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ptr_container_detail::ref_pair<F,S>,
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use_default,
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ptr_container_detail::ref_pair<F,S> >
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{
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typedef boost::iterator_adaptor< ptr_map_iterator<I,F,S>, I,
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ptr_container_detail::ref_pair<F,S>,
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use_default,
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ptr_container_detail::ref_pair<F,S> >
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base_type;
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public:
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ptr_map_iterator() : base_type()
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{ }
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explicit ptr_map_iterator( const I& i ) : base_type(i)
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{ }
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template< class I2, class F2, class S2 >
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ptr_map_iterator( const ptr_map_iterator<I2,F2,S2>& r )
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: base_type(r.base())
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{ }
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}; // class 'ptr_map_iterator'
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}
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#if defined(BOOST_MSVC)
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# pragma warning(pop)
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#endif
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#endif
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