| |
| #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 |