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67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
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// (C) Copyright Edward Diener 2011-2015
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (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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#if !defined(BOOST_VMD_DETAIL_SEQUENCE_ARITY_HPP)
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#define BOOST_VMD_DETAIL_SEQUENCE_ARITY_HPP
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#include <boost/preprocessor/logical/bitand.hpp>
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#include <boost/preprocessor/logical/bitnor.hpp>
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#include <boost/preprocessor/tuple/elem.hpp>
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#include <boost/vmd/is_empty.hpp>
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#include <boost/vmd/detail/modifiers.hpp>
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#include <boost/vmd/detail/not_empty.hpp>
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#include <boost/vmd/detail/sequence_elem.hpp>
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#define BOOST_VMD_DETAIL_IS_MULTI_TUPLE(tuple) \
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BOOST_PP_BITNOR \
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( \
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BOOST_VMD_IS_EMPTY(BOOST_PP_TUPLE_ELEM(0,tuple)), \
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BOOST_VMD_IS_EMPTY(BOOST_PP_TUPLE_ELEM(1,tuple)) \
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) \
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/**/
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#define BOOST_VMD_DETAIL_IS_UNARY_TUPLE(tuple) \
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BOOST_PP_BITAND \
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( \
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BOOST_VMD_DETAIL_NOT_EMPTY(BOOST_PP_TUPLE_ELEM(0,tuple)), \
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BOOST_VMD_IS_EMPTY(BOOST_PP_TUPLE_ELEM(1,tuple)) \
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) \
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/**/
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// UNARY
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#define BOOST_VMD_DETAIL_IS_UNARY(vseq) \
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BOOST_VMD_DETAIL_IS_UNARY_TUPLE \
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( \
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BOOST_VMD_DETAIL_SEQUENCE_ELEM(BOOST_VMD_ALLOW_AFTER,0,vseq,BOOST_VMD_RETURN_AFTER) \
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) \
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/**/
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#define BOOST_VMD_DETAIL_IS_UNARY_D(d,vseq) \
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BOOST_VMD_DETAIL_IS_UNARY_TUPLE \
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( \
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BOOST_VMD_DETAIL_SEQUENCE_ELEM_D(d,BOOST_VMD_ALLOW_AFTER,0,vseq,BOOST_VMD_RETURN_AFTER) \
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) \
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/**/
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// MULTI
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#define BOOST_VMD_DETAIL_IS_MULTI(vseq) \
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BOOST_VMD_DETAIL_IS_MULTI_TUPLE \
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( \
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BOOST_VMD_DETAIL_SEQUENCE_ELEM(BOOST_VMD_ALLOW_AFTER,0,vseq,BOOST_VMD_RETURN_AFTER) \
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) \
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/**/
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#define BOOST_VMD_DETAIL_IS_MULTI_D(d,vseq) \
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BOOST_VMD_DETAIL_IS_MULTI_TUPLE \
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( \
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BOOST_VMD_DETAIL_SEQUENCE_ELEM_D(d,BOOST_VMD_ALLOW_AFTER,0,vseq,BOOST_VMD_RETURN_AFTER) \
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) \
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/**/
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#endif /* BOOST_VMD_DETAIL_SEQUENCE_ARITY_HPP */
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