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150 lines
3.6 KiB
150 lines
3.6 KiB
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#if !defined(BOOST_PP_IS_ITERATING) |
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///// header body |
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#ifndef BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED |
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#define BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED |
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// Copyright Aleksey Gurtovoy 2002-2004 |
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// |
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// Distributed under the Boost Software License, Version 1.0. |
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// (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// See http://www.boost.org/libs/mpl for documentation. |
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// $Id: unpack_args.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
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// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
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// $Revision: 49267 $ |
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#if !defined(BOOST_MPL_PREPROCESSING_MODE) |
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# include <boost/mpl/apply.hpp> |
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# include <boost/mpl/at.hpp> |
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# include <boost/mpl/size.hpp> |
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# include <boost/mpl/aux_/nttp_decl.hpp> |
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# include <boost/mpl/aux_/lambda_spec.hpp> |
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#endif |
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#include <boost/mpl/aux_/config/use_preprocessed.hpp> |
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#if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \ |
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&& !defined(BOOST_MPL_PREPROCESSING_MODE) |
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# define BOOST_MPL_PREPROCESSED_HEADER unpack_args.hpp |
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# include <boost/mpl/aux_/include_preprocessed.hpp> |
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#else |
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# include <boost/mpl/limits/arity.hpp> |
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# include <boost/mpl/aux_/preprocessor/repeat.hpp> |
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# include <boost/mpl/aux_/config/ctps.hpp> |
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# include <boost/mpl/aux_/config/forwarding.hpp> |
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# include <boost/preprocessor/iterate.hpp> |
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# include <boost/preprocessor/cat.hpp> |
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namespace boost { namespace mpl { |
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// local macros, #undef-ined at the end of the header |
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# define AUX778076_UNPACK(unused, i, Args) \ |
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, typename at_c<Args,i>::type \ |
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/**/ |
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# define AUX778076_UNPACKED_ARGS(n, Args) \ |
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BOOST_MPL_PP_REPEAT(n, AUX778076_UNPACK, Args) \ |
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/**/ |
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namespace aux { |
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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template< int size, typename F, typename Args > |
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struct unpack_args_impl; |
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#else |
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template< BOOST_MPL_AUX_NTTP_DECL(int, size) > struct unpack_args_impl |
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{ |
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template< typename F, typename Args > struct apply; |
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}; |
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#endif |
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#define BOOST_PP_ITERATION_PARAMS_1 \ |
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(3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/unpack_args.hpp>)) |
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#include BOOST_PP_ITERATE() |
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} |
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template< |
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typename F |
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> |
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struct unpack_args |
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{ |
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template< typename Args > struct apply |
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#if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING) |
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# if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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: aux::unpack_args_impl< size<Args>::value,F,Args > |
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# else |
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: aux::unpack_args_impl< size<Args>::value > |
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::template apply< F,Args > |
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# endif |
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{ |
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#else // BOOST_MPL_CFG_NO_NESTED_FORWARDING |
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{ |
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typedef typename aux::unpack_args_impl< |
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size<Args>::value |
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, F |
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, Args |
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>::type type; |
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#endif |
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}; |
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}; |
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BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(1, unpack_args) |
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# undef AUX778076_UNPACK |
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# undef AUX778076_UNPACKED_ARGS |
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}} |
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#endif // BOOST_MPL_CFG_USE_PREPROCESSED_HEADERS |
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#endif // BOOST_MPL_UNPACK_ARGS_HPP_INCLUDED |
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///// iteration, depth == 1 |
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// For gcc 4.4 compatability, we must include the |
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// BOOST_PP_ITERATION_DEPTH test inside an #else clause. |
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#else // BOOST_PP_IS_ITERATING |
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#if BOOST_PP_ITERATION_DEPTH() == 1 |
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# define i_ BOOST_PP_FRAME_ITERATION(1) |
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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template< typename F, typename Args > |
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struct unpack_args_impl<i_,F,Args> |
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: BOOST_PP_CAT(apply,i_)< |
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F |
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AUX778076_UNPACKED_ARGS(i_, Args) |
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> |
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{ |
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}; |
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#else |
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template<> struct unpack_args_impl<i_> |
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{ |
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template< typename F, typename Args > struct apply |
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: BOOST_PP_CAT(apply,i_)< |
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F |
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AUX778076_UNPACKED_ARGS(i_, Args) |
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> |
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{ |
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}; |
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}; |
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#endif |
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# undef i_ |
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#endif // BOOST_PP_ITERATION_DEPTH() |
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#endif // BOOST_PP_IS_ITERATING
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