#if !defined(BOOST_PP_IS_ITERATING)

///// header body

#ifndef BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED

#define BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED

// Copyright Aleksey Gurtovoy 2002-2004

//

// 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: unpack_args.hpp 49267 2008-10-11 06:19:02Z agurtovoy $

// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $

// $Revision: 49267 $

#if !defined(BOOST_MPL_PREPROCESSING_MODE)

#   include <boost/mpl/apply.hpp>

#   include <boost/mpl/at.hpp>

#   include <boost/mpl/size.hpp>

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

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

#endif

#include <boost/mpl/aux_/config/use_preprocessed.hpp>

#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \

    && !defined(BOOST_MPL_PREPROCESSING_MODE)

#   define BOOST_MPL_PREPROCESSED_HEADER unpack_args.hpp

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

#else

#   include <boost/mpl/limits/arity.hpp>

#   include <boost/mpl/aux_/preprocessor/repeat.hpp>

#   include <boost/mpl/aux_/config/ctps.hpp>

#   include <boost/mpl/aux_/config/forwarding.hpp>

#   include <boost/preprocessor/iterate.hpp>

#   include <boost/preprocessor/cat.hpp>

namespace boost { namespace mpl {

// local macros, #undef-ined at the end of the header

#   define AUX778076_UNPACK(unused, i, Args) \

    , typename at_c<Args,i>::type \

    /**/

#   define AUX778076_UNPACKED_ARGS(n, Args) \

    BOOST_MPL_PP_REPEAT(n, AUX778076_UNPACK, Args) \

    /**/

namespace aux {

#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)

template< int size, typename F, typename Args >

struct unpack_args_impl;

#else

template< BOOST_MPL_AUX_NTTP_DECL(int, size) > struct unpack_args_impl

{

    template< typename F, typename Args > struct apply;

};

#endif

#define BOOST_PP_ITERATION_PARAMS_1 \

    (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/unpack_args.hpp>))

#include BOOST_PP_ITERATE()

}

template<

      typename F

    >

struct unpack_args

{

    template< typename Args > struct apply

#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)

#   if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)

        : aux::unpack_args_impl< size<Args>::value,F,Args >

#   else

        : aux::unpack_args_impl< size<Args>::value >

            ::template apply< F,Args >

#   endif

    {

#else // BOOST_MPL_CFG_NO_NESTED_FORWARDING

    {

        typedef typename aux::unpack_args_impl< 

              size<Args>::value

            , F

            , Args

            >::type type;

#endif

    };

};

BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(1, unpack_args)

#   undef AUX778076_UNPACK

#   undef AUX778076_UNPACKED_ARGS

}}

#endif // BOOST_MPL_CFG_USE_PREPROCESSED_HEADERS

#endif // BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED

///// iteration, depth == 1

// For gcc 4.4 compatability, we must include the

// BOOST_PP_ITERATION_DEPTH test inside an #else clause.

#else // BOOST_PP_IS_ITERATING

#if BOOST_PP_ITERATION_DEPTH() == 1

#   define i_ BOOST_PP_FRAME_ITERATION(1)

#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)

template< typename F, typename Args >

struct unpack_args_impl<i_,F,Args>

    : BOOST_PP_CAT(apply,i_)<

          F

        AUX778076_UNPACKED_ARGS(i_, Args)

        >

{

};

#else

template<> struct unpack_args_impl<i_>

{

    template< typename F, typename Args > struct apply

        : BOOST_PP_CAT(apply,i_)<

              F

            AUX778076_UNPACKED_ARGS(i_, Args)

            >

    {

    };

};

#endif

#   undef i_

#endif // BOOST_PP_ITERATION_DEPTH()

#endif // BOOST_PP_IS_ITERATING