#ifndef BOOST_MPL_AUX_FOLD_OP_HPP_INCLUDED

#define BOOST_MPL_AUX_FOLD_OP_HPP_INCLUDED

// Copyright Aleksey Gurtovoy 2001-2004

//

// 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/aux_/fold_op.hpp,v $

// $Date: 2004/09/02 15:40:43 $

// $Revision: 1.4 $

#include <boost/mpl/apply.hpp>

namespace boost { namespace mpl { namespace aux {

// hand-written version is more efficient than bind/lambda expression

template< typename Op >

struct fold_op

{

    template< typename T1, typename T2 > struct apply

    {

        typedef typename apply2<

              Op

            , T1

            , typename T2::type

            >::type type;

    };

};

}}}

#endif // BOOST_MPL_AUX_FOLD_OP_HPP_INCLUDED