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// (C) Copyright Edward Diener 2011-2015
// Use, modification and distribution are subject to 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).
#if !defined(BOOST_VMD_IS_PARENS_EMPTY_HPP)
#define BOOST_VMD_IS_PARENS_EMPTY_HPP
#include <boost/vmd/detail/setup.hpp>
#if BOOST_PP_VARIADICS
#include <boost/vmd/detail/is_empty_tuple.hpp>
/*
The succeeding comments in this file are in doxygen format.
*/
/** \file
*/
/** \def BOOST_VMD_IS_PARENS_EMPTY(sequence)
\brief Determines if the sequence is a set of parens with no data.
sequence = a VMD sequence
returns = 1 if the sequence is a set of parens with no data,
else returns 0.
A set of parens with no data may be:
1) a tuple whose size is a single element which is empty
or
2) a single element seq whose data is empty
*/
#define BOOST_VMD_IS_PARENS_EMPTY(sequence) \
BOOST_VMD_DETAIL_IS_EMPTY_TUPLE(sequence) \
/**/
/** \def BOOST_VMD_IS_PARENS_EMPTY_D(d,sequence)
\brief Determines if the sequence is a set of parens with no data. Re-entrant version.
d = The next available BOOST_PP_WHILE iteration.
sequence = a VMD sequence
returns = 1 if the sequence is a set of parens with no data,
else returns 0.
A set of parens with no data may be:
1) a tuple whose size is a single element which is empty
or
2) a single element seq whose data is empty
*/
#define BOOST_VMD_IS_PARENS_EMPTY_D(d,sequence) \
BOOST_VMD_DETAIL_IS_EMPTY_TUPLE_D(d,sequence) \
/**/
#endif /* BOOST_PP_VARIADICS */
#endif /* BOOST_VMD_IS_PARENS_EMPTY_HPP */
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