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74 lines
1.8 KiB
C++
74 lines
1.8 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_IS_PARENS_EMPTY_HPP)
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#define BOOST_VMD_IS_PARENS_EMPTY_HPP
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#include <boost/vmd/detail/setup.hpp>
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#if BOOST_PP_VARIADICS
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#include <boost/vmd/detail/is_empty_tuple.hpp>
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/*
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The succeeding comments in this file are in doxygen format.
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*/
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/** \file
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*/
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/** \def BOOST_VMD_IS_PARENS_EMPTY(sequence)
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\brief Determines if the sequence is a set of parens with no data.
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sequence = a VMD sequence
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returns = 1 if the sequence is a set of parens with no data,
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else returns 0.
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A set of parens with no data may be:
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1) a tuple whose size is a single element which is empty
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or
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2) a single element seq whose data is empty
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*/
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#define BOOST_VMD_IS_PARENS_EMPTY(sequence) \
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BOOST_VMD_DETAIL_IS_EMPTY_TUPLE(sequence) \
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/**/
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/** \def BOOST_VMD_IS_PARENS_EMPTY_D(d,sequence)
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\brief Determines if the sequence is a set of parens with no data. Re-entrant version.
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d = The next available BOOST_PP_WHILE iteration.
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sequence = a VMD sequence
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returns = 1 if the sequence is a set of parens with no data,
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else returns 0.
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A set of parens with no data may be:
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1) a tuple whose size is a single element which is empty
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or
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2) a single element seq whose data is empty
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*/
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#define BOOST_VMD_IS_PARENS_EMPTY_D(d,sequence) \
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BOOST_VMD_DETAIL_IS_EMPTY_TUPLE_D(d,sequence) \
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/**/
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#endif /* BOOST_PP_VARIADICS */
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#endif /* BOOST_VMD_IS_PARENS_EMPTY_HPP */
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