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// (C) Copyright Edward Diener 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_VMD_TUPLE_HPP)
#define BOOST_VMD_IS_VMD_TUPLE_HPP
#include <boost/vmd/detail/setup.hpp>
#if BOOST_PP_VARIADICS
#include <boost/preprocessor/control/iif.hpp>
#include <boost/vmd/identity.hpp>
#include <boost/vmd/is_empty.hpp>
#include <boost/vmd/is_tuple.hpp>
/*
The succeeding comments in this file are in doxygen format.
*/
/** \file
*/
/** \def BOOST_VMD_IS_VMD_TUPLE(sequence)
\brief Determines if a sequence is a VMD tuple.
The macro checks that the sequence is a VMD tuple.
A VMD tuple, which may be a Boost PP tuple or emptiness, is a superset of a Boost PP tuple.
It returns 1 if it is a VMD tuple, else if returns 0.
sequence = a possible Boost PP tuple
returns = 1 if it a VMD tuple, else returns 0.
*/
#define BOOST_VMD_IS_VMD_TUPLE(sequence) \
BOOST_VMD_IDENTITY_RESULT \
( \
BOOST_PP_IIF \
( \
BOOST_VMD_IS_EMPTY(sequence), \
BOOST_VMD_IDENTITY(1), \
BOOST_VMD_IS_TUPLE \
) \
(sequence) \
) \
/**/
#endif /* BOOST_PP_VARIADICS */
#endif /* BOOST_VMD_IS_VMD_TUPLE_HPP */
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