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#ifndef BOOST_MPL_LIST_AUX_ITERATOR_HPP_INCLUDED #define BOOST_MPL_LIST_AUX_ITERATOR_HPP_INCLUDED // Copyright Aleksey Gurtovoy 2000-2004 // // Distributed under the Boost Software License, Version 1.0. // (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // // See http://www.boost.org/libs/mpl for documentation. // $Source: /cvsroot/boost/boost/boost/mpl/list/aux_/iterator.hpp,v $ // $Date: 2004/10/01 16:29:37 $ // $Revision: 1.6 $ #include <boost/mpl/iterator_tags.hpp> #include <boost/mpl/next_prior.hpp> #include <boost/mpl/deref.hpp> #include <boost/mpl/list/aux_/item.hpp> #include <boost/mpl/aux_/na.hpp> #include <boost/mpl/aux_/lambda_spec.hpp> #include <boost/mpl/aux_/config/ctps.hpp> namespace boost { namespace mpl { #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) template< typename Node > struct l_iter { typedef aux::l_iter_tag tag; typedef forward_iterator_tag category; }; template< typename Node > struct deref< l_iter<Node> > { typedef typename Node::item type; }; template< typename Node > struct next< l_iter<Node> > { typedef l_iter< typename Node::next > type; }; #else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION template< typename Node > struct l_iter { typedef aux::l_iter_tag tag; typedef forward_iterator_tag category; typedef typename Node::item type; typedef l_iter< typename mpl::next<Node>::type > next; }; #endif template<> struct l_iter<l_end> { typedef aux::l_iter_tag tag; typedef forward_iterator_tag category; #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) typedef na type; typedef l_iter next; #endif }; BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(1, l_iter) }} #endif // BOOST_MPL_LIST_AUX_ITERATOR_HPP_INCLUDED
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