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131 lines
3.2 KiB
131 lines
3.2 KiB
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#if !defined(BOOST_PP_IS_ITERATING) |
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///// header body |
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#ifndef BOOST_MPL_ARG_HPP_INCLUDED |
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#define BOOST_MPL_ARG_HPP_INCLUDED |
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// Copyright Peter Dimov 2001-2002 |
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// Copyright Aleksey Gurtovoy 2001-2004 |
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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: arg.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/arg_fwd.hpp> |
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# include <boost/mpl/aux_/na.hpp> |
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# include <boost/mpl/aux_/na_assert.hpp> |
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# include <boost/mpl/aux_/arity_spec.hpp> |
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# include <boost/mpl/aux_/arg_typedef.hpp> |
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#endif |
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#include <boost/mpl/aux_/config/static_constant.hpp> |
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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 arg.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/default_params.hpp> |
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# include <boost/mpl/aux_/preprocessor/params.hpp> |
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# include <boost/mpl/aux_/config/lambda.hpp> |
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# include <boost/mpl/aux_/config/dtp.hpp> |
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# include <boost/mpl/aux_/nttp_decl.hpp> |
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# include <boost/preprocessor/iterate.hpp> |
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# include <boost/preprocessor/inc.hpp> |
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# include <boost/preprocessor/cat.hpp> |
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BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN |
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// local macro, #undef-ined at the end of the header |
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#if !defined(BOOST_MPL_CFG_NO_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES) |
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# define AUX778076_ARG_N_DEFAULT_PARAMS(param,value) \ |
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BOOST_MPL_PP_DEFAULT_PARAMS( \ |
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BOOST_MPL_LIMIT_METAFUNCTION_ARITY \ |
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, param \ |
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, value \ |
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) \ |
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/**/ |
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#else |
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# define AUX778076_ARG_N_DEFAULT_PARAMS(param,value) \ |
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BOOST_MPL_PP_PARAMS( \ |
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BOOST_MPL_LIMIT_METAFUNCTION_ARITY \ |
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, param \ |
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) \ |
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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/arg.hpp>)) |
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#include BOOST_PP_ITERATE() |
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# undef AUX778076_ARG_N_DEFAULT_PARAMS |
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BOOST_MPL_AUX_NONTYPE_ARITY_SPEC(1,int,arg) |
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BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE |
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#endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS |
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#endif // BOOST_MPL_ARG_HPP_INCLUDED |
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///// iteration |
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#else |
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#define i_ BOOST_PP_FRAME_ITERATION(1) |
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#if i_ > 0 |
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template<> struct arg<i_> |
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{ |
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BOOST_STATIC_CONSTANT(int, value = i_); |
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typedef arg<BOOST_PP_INC(i_)> next; |
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BOOST_MPL_AUX_ARG_TYPEDEF(na, tag) |
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BOOST_MPL_AUX_ARG_TYPEDEF(na, type) |
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template< |
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AUX778076_ARG_N_DEFAULT_PARAMS(typename U, na) |
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> |
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struct apply |
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{ |
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typedef BOOST_PP_CAT(U,i_) type; |
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BOOST_MPL_AUX_ASSERT_NOT_NA(type); |
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}; |
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}; |
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#else |
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template<> struct arg<-1> |
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{ |
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BOOST_STATIC_CONSTANT(int, value = -1); |
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BOOST_MPL_AUX_ARG_TYPEDEF(na, tag) |
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BOOST_MPL_AUX_ARG_TYPEDEF(na, type) |
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template< |
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AUX778076_ARG_N_DEFAULT_PARAMS(typename U, na) |
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> |
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struct apply |
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{ |
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typedef U1 type; |
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BOOST_MPL_AUX_ASSERT_NOT_NA(type); |
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}; |
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}; |
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#endif // i_ > 0 |
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#undef i_ |
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#endif // BOOST_PP_IS_ITERATING
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