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