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Contents
#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.
// $Id: iterator.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
// $Revision: 49267 $
#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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