#ifndef BOOST_MPL_ITER_FOLD_BACKWARD_HPP_INCLUDED

#define BOOST_MPL_ITER_FOLD_BACKWARD_HPP_INCLUDED

// Copyright Aleksey Gurtovoy 2001-2004

// Copyright Dave Abrahams 2001-2002

//

// 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/reverse_iter_fold.hpp,v $

// $Date: 2004/09/02 15:40:42 $

// $Revision: 1.2 $

#include <boost/mpl/begin_end.hpp>

#include <boost/mpl/O1_size.hpp>

#include <boost/mpl/arg.hpp>

#include <boost/mpl/lambda.hpp>

#include <boost/mpl/aux_/reverse_iter_fold_impl.hpp>

#include <boost/mpl/aux_/na_spec.hpp>

#include <boost/mpl/aux_/lambda_support.hpp>

namespace boost { namespace mpl {

template<

      typename BOOST_MPL_AUX_NA_PARAM(Sequence)

    , typename BOOST_MPL_AUX_NA_PARAM(State)

    , typename BOOST_MPL_AUX_NA_PARAM(BackwardOp)

    , typename ForwardOp = arg<1>

    >

struct reverse_iter_fold

{

    typedef typename aux::reverse_iter_fold_impl<

          ::boost::mpl::O1_size<Sequence>::value

        , typename begin<Sequence>::type

        , typename end<Sequence>::type

        , State

        , typename lambda<BackwardOp>::type

        , typename lambda<ForwardOp>::type

        >::state type;

    BOOST_MPL_AUX_LAMBDA_SUPPORT(

          4

        , reverse_iter_fold

        , (Sequence,State,BackwardOp,ForwardOp)

        )

};

BOOST_MPL_AUX_NA_SPEC(3, reverse_iter_fold)

}}

#endif // BOOST_MPL_ITER_FOLD_BACKWARD_HPP_INCLUDED