57 lines
1.3 KiB
C++
57 lines
1.3 KiB
C++
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// (C) Copyright Edward Diener 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_VMD_SEQ_HPP)
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#define BOOST_VMD_IS_VMD_SEQ_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/preprocessor/control/iif.hpp>
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#include <boost/vmd/identity.hpp>
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#include <boost/vmd/is_empty.hpp>
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#include <boost/vmd/is_seq.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_VMD_SEQ(sequence)
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\brief Determines if a sequence is a VMD seq.
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The macro checks that the sequence is a VMD seq.
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A VMD seq, which may be a Boost PP seq or emptiness, is a superset of a Boost PP seq.
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It returns 1 if it is a VMD seq, else if returns 0.
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sequence = a possible Boost PP seq
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returns = 1 if it a VMD seq, else returns 0.
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*/
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#define BOOST_VMD_IS_VMD_SEQ(sequence) \
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BOOST_VMD_IDENTITY_RESULT \
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( \
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BOOST_PP_IIF \
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( \
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BOOST_VMD_IS_EMPTY(sequence), \
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BOOST_VMD_IDENTITY(1), \
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BOOST_VMD_IS_SEQ \
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) \
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(sequence) \
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) \
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/**/
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#endif /* BOOST_PP_VARIADICS */
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#endif /* BOOST_VMD_IS_VMD_SEQ_HPP */
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