#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.

 // $Source: /cvsroot/boost/boost/boost/mpl/unpack_args.hpp,v $

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

 // $Revision: 1.2 $

 #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

 #elif 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_IS_ITERATING