sl@0: 
sl@0: #if !defined(BOOST_PP_IS_ITERATING)
sl@0: 
sl@0: ///// header body
sl@0: 
sl@0: #ifndef BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED
sl@0: #define BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED
sl@0: 
sl@0: // Copyright Aleksey Gurtovoy 2002-2004
sl@0: //
sl@0: // Distributed under the Boost Software License, Version 1.0. 
sl@0: // (See accompanying file LICENSE_1_0.txt or copy at 
sl@0: // http://www.boost.org/LICENSE_1_0.txt)
sl@0: //
sl@0: // See http://www.boost.org/libs/mpl for documentation.
sl@0: 
sl@0: // $Source: /cvsroot/boost/boost/boost/mpl/unpack_args.hpp,v $
sl@0: // $Date: 2004/09/02 15:40:42 $
sl@0: // $Revision: 1.2 $
sl@0: 
sl@0: #if !defined(BOOST_MPL_PREPROCESSING_MODE)
sl@0: #   include <boost/mpl/apply.hpp>
sl@0: #   include <boost/mpl/at.hpp>
sl@0: #   include <boost/mpl/size.hpp>
sl@0: #   include <boost/mpl/aux_/nttp_decl.hpp>
sl@0: #   include <boost/mpl/aux_/lambda_spec.hpp>
sl@0: #endif
sl@0: 
sl@0: #include <boost/mpl/aux_/config/use_preprocessed.hpp>
sl@0: 
sl@0: #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
sl@0:     && !defined(BOOST_MPL_PREPROCESSING_MODE)
sl@0: 
sl@0: #   define BOOST_MPL_PREPROCESSED_HEADER unpack_args.hpp
sl@0: #   include <boost/mpl/aux_/include_preprocessed.hpp>
sl@0: 
sl@0: #else
sl@0: 
sl@0: #   include <boost/mpl/limits/arity.hpp>
sl@0: #   include <boost/mpl/aux_/preprocessor/repeat.hpp>
sl@0: #   include <boost/mpl/aux_/config/ctps.hpp>
sl@0: #   include <boost/mpl/aux_/config/forwarding.hpp>
sl@0: #   include <boost/preprocessor/iterate.hpp>
sl@0: #   include <boost/preprocessor/cat.hpp>
sl@0: 
sl@0: 
sl@0: namespace boost { namespace mpl {
sl@0: 
sl@0: // local macros, #undef-ined at the end of the header
sl@0: 
sl@0: #   define AUX778076_UNPACK(unused, i, Args) \
sl@0:     , typename at_c<Args,i>::type \
sl@0:     /**/
sl@0: 
sl@0: #   define AUX778076_UNPACKED_ARGS(n, Args) \
sl@0:     BOOST_MPL_PP_REPEAT(n, AUX778076_UNPACK, Args) \
sl@0:     /**/
sl@0: 
sl@0: namespace aux {
sl@0: 
sl@0: #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
sl@0: template< int size, typename F, typename Args >
sl@0: struct unpack_args_impl;
sl@0: #else
sl@0: template< BOOST_MPL_AUX_NTTP_DECL(int, size) > struct unpack_args_impl
sl@0: {
sl@0:     template< typename F, typename Args > struct apply;
sl@0: };
sl@0: #endif
sl@0: 
sl@0: #define BOOST_PP_ITERATION_PARAMS_1 \
sl@0:     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/unpack_args.hpp>))
sl@0: #include BOOST_PP_ITERATE()
sl@0: 
sl@0: }
sl@0: 
sl@0: template<
sl@0:       typename F
sl@0:     >
sl@0: struct unpack_args
sl@0: {
sl@0:     template< typename Args > struct apply
sl@0: #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
sl@0: #   if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
sl@0:         : aux::unpack_args_impl< size<Args>::value,F,Args >
sl@0: #   else
sl@0:         : aux::unpack_args_impl< size<Args>::value >
sl@0:             ::template apply< F,Args >
sl@0: #   endif
sl@0:     {
sl@0: #else // BOOST_MPL_CFG_NO_NESTED_FORWARDING
sl@0:     {
sl@0:         typedef typename aux::unpack_args_impl< 
sl@0:               size<Args>::value
sl@0:             , F
sl@0:             , Args
sl@0:             >::type type;
sl@0: #endif
sl@0:     };
sl@0: };
sl@0: 
sl@0: BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(1, unpack_args)
sl@0: 
sl@0: #   undef AUX778076_UNPACK
sl@0: #   undef AUX778076_UNPACKED_ARGS
sl@0: 
sl@0: }}
sl@0: 
sl@0: #endif // BOOST_MPL_CFG_USE_PREPROCESSED_HEADERS
sl@0: #endif // BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED
sl@0: 
sl@0: ///// iteration, depth == 1
sl@0: 
sl@0: #elif BOOST_PP_ITERATION_DEPTH() == 1
sl@0: 
sl@0: #   define i_ BOOST_PP_FRAME_ITERATION(1)
sl@0: 
sl@0: #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
sl@0: 
sl@0: template< typename F, typename Args >
sl@0: struct unpack_args_impl<i_,F,Args>
sl@0:     : BOOST_PP_CAT(apply,i_)<
sl@0:           F
sl@0:         AUX778076_UNPACKED_ARGS(i_, Args)
sl@0:         >
sl@0: {
sl@0: };
sl@0: 
sl@0: #else
sl@0: 
sl@0: template<> struct unpack_args_impl<i_>
sl@0: {
sl@0:     template< typename F, typename Args > struct apply
sl@0:         : BOOST_PP_CAT(apply,i_)<
sl@0:               F
sl@0:             AUX778076_UNPACKED_ARGS(i_, Args)
sl@0:             >
sl@0:     {
sl@0:     };
sl@0: };
sl@0: 
sl@0: #endif
sl@0: 
sl@0: #   undef i_
sl@0: 
sl@0: #endif // BOOST_PP_IS_ITERATING