/*=============================================================================
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Copyright (c) 2013-2014 Damien Buhl
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#ifndef BOOST_FUSION_ADAPTED_ADT_DETAIL_ADAPT_BASE_ATTR_FILLER_HPP
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#define BOOST_FUSION_ADAPTED_ADT_DETAIL_ADAPT_BASE_ATTR_FILLER_HPP
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#include <boost/config.hpp>
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#include <boost/fusion/adapted/struct/detail/adapt_auto.hpp>
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#include <boost/fusion/adapted/struct/detail/preprocessor/is_seq.hpp>
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#include <boost/mpl/aux_/preprocessor/token_equal.hpp>
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#include <boost/preprocessor/arithmetic/dec.hpp>
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#include <boost/preprocessor/control/iif.hpp>
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#include <boost/preprocessor/logical/or.hpp>
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#include <boost/preprocessor/tuple/elem.hpp>
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#include <boost/preprocessor/variadic/to_seq.hpp>
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#include <boost/preprocessor/variadic/size.hpp>
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#include <boost/preprocessor/variadic/elem.hpp>
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#include <boost/preprocessor/seq/seq.hpp>
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#include <boost/preprocessor/seq/rest_n.hpp>
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#define BOOST_FUSION_ADAPT_ADT_WRAPPEDATTR_SIZE(ATTRIBUTE) \
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BOOST_PP_TUPLE_ELEM(2, 0, ATTRIBUTE)
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#define BOOST_FUSION_ADAPT_ADT_WRAPPEDATTR(ATTRIBUTE) \
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BOOST_PP_TUPLE_ELEM(2, 1, ATTRIBUTE)
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#if BOOST_PP_VARIADICS
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# define BOOST_FUSION_ADAPT_ADT_FILLER_0(...) \
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BOOST_FUSION_ADAPT_ADT_FILLER(__VA_ARGS__) \
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BOOST_FUSION_ADAPT_ADT_FILLER_1
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# define BOOST_FUSION_ADAPT_ADT_FILLER_1(...) \
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BOOST_FUSION_ADAPT_ADT_FILLER(__VA_ARGS__) \
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BOOST_FUSION_ADAPT_ADT_FILLER_0
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# define BOOST_FUSION_ADAPT_ADT_FILLER_0_END
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# define BOOST_FUSION_ADAPT_ADT_FILLER_1_END
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// MSVC don't compile when using BOOST_PP_BITOR instead of BOOST_PP_OR.
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# define BOOST_FUSION_ADAPT_ADT_FILLER(...) \
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BOOST_PP_IIF( \
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BOOST_PP_OR( \
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BOOST_MPL_PP_TOKEN_EQUAL(auto, \
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BOOST_PP_VARIADIC_ELEM(0, __VA_ARGS__)), \
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BOOST_MPL_PP_TOKEN_EQUAL(auto, \
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BOOST_PP_VARIADIC_ELEM(1, __VA_ARGS__))), \
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\
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BOOST_FUSION_ADAPT_ADT_WRAP_ATTR( \
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BOOST_PP_VARIADIC_ELEM(2, __VA_ARGS__), \
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BOOST_FUSION_WORKAROUND_VARIADIC_EMPTINESS_LAST_ELEM(__VA_ARGS__) \
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), \
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BOOST_FUSION_ADAPT_ADT_WRAP_ATTR(__VA_ARGS__))
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# define BOOST_FUSION_ADAPT_ADT_WRAP_ATTR(...) \
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((BOOST_PP_VARIADIC_SIZE(__VA_ARGS__), (__VA_ARGS__)))
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# define BOOST_FUSION_WORKAROUND_VARIADIC_EMPTINESS_LAST_ELEM(...) \
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BOOST_PP_SEQ_HEAD(BOOST_PP_SEQ_REST_N( \
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BOOST_PP_DEC(BOOST_PP_VARIADIC_SIZE(__VA_ARGS__)), \
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BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__)))
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#else // BOOST_PP_VARIADICS
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# define BOOST_FUSION_ADAPT_ADT_FILLER_0(A, B, C, D) \
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BOOST_FUSION_ADAPT_ADT_WRAP_ATTR(A,B,C,D) \
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BOOST_FUSION_ADAPT_ADT_FILLER_1
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# define BOOST_FUSION_ADAPT_ADT_FILLER_1(A, B, C, D) \
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BOOST_FUSION_ADAPT_ADT_WRAP_ATTR(A,B,C,D) \
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BOOST_FUSION_ADAPT_ADT_FILLER_0
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# define BOOST_FUSION_ADAPT_ADT_FILLER_0_END
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# define BOOST_FUSION_ADAPT_ADT_FILLER_1_END
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# define BOOST_FUSION_ADAPT_ADT_WRAP_ATTR(A, B, C, D) \
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BOOST_PP_IIF(BOOST_MPL_PP_TOKEN_EQUAL(auto, A), \
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((2, (C,D))), \
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((4, (A,B,C,D))) \
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)
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#endif // BOOST_PP_VARIADICS
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#endif
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