132 lines
3.4 KiB
C++
132 lines
3.4 KiB
C++
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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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