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# /* **************************************************************************
# * *
# * (C) Copyright Paul Mensonides 2003.
# * (C) Copyright Edward Diener 2014.
# * Distributed under 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)
# * *
# ************************************************************************** */
#
# /* See http://www.boost.org for most recent version. */
#
# ifndef BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_HPP
# define BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_HPP
#
# include <boost/preprocessor/config/config.hpp>
#
# if BOOST_PP_VARIADICS
#
# include <boost/preprocessor/facilities/is_empty_variadic.hpp>
#
# else
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC() && ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
# include <boost/preprocessor/tuple/elem.hpp>
# include <boost/preprocessor/facilities/identity.hpp>
# else
# include <boost/preprocessor/cat.hpp>
# include <boost/preprocessor/detail/split.hpp>
# endif
#
# /* BOOST_PP_IS_EMPTY */
#
# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC() && ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
# define BOOST_PP_IS_EMPTY(x) BOOST_PP_IS_EMPTY_I(x BOOST_PP_IS_EMPTY_HELPER)
# define BOOST_PP_IS_EMPTY_I(contents) BOOST_PP_TUPLE_ELEM(2, 1, (BOOST_PP_IS_EMPTY_DEF_ ## contents()))
# define BOOST_PP_IS_EMPTY_DEF_BOOST_PP_IS_EMPTY_HELPER 1, BOOST_PP_IDENTITY(1)
# define BOOST_PP_IS_EMPTY_HELPER() , 0
# else
# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
# define BOOST_PP_IS_EMPTY(x) BOOST_PP_IS_EMPTY_I(BOOST_PP_IS_EMPTY_HELPER x ())
# define BOOST_PP_IS_EMPTY_I(test) BOOST_PP_IS_EMPTY_II(BOOST_PP_SPLIT(0, BOOST_PP_CAT(BOOST_PP_IS_EMPTY_DEF_, test)))
# define BOOST_PP_IS_EMPTY_II(id) id
# else
# define BOOST_PP_IS_EMPTY(x) BOOST_PP_IS_EMPTY_I((BOOST_PP_IS_EMPTY_HELPER x ()))
# define BOOST_PP_IS_EMPTY_I(par) BOOST_PP_IS_EMPTY_II ## par
# define BOOST_PP_IS_EMPTY_II(test) BOOST_PP_SPLIT(0, BOOST_PP_CAT(BOOST_PP_IS_EMPTY_DEF_, test))
# endif
# define BOOST_PP_IS_EMPTY_HELPER() 1
# define BOOST_PP_IS_EMPTY_DEF_1 1, BOOST_PP_NIL
# define BOOST_PP_IS_EMPTY_DEF_BOOST_PP_IS_EMPTY_HELPER 0, BOOST_PP_NIL
# endif
#
# endif /* BOOST_PP_VARIADICS */
#
# endif /* BOOST_PREPROCESSOR_FACILITIES_IS_EMPTY_HPP */
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