preprocessor/detail/is_nullary.hpp

0001 # /* **************************************************************************
0002 #  *                                                                          *
0003 #  *     (C) Copyright Paul Mensonides 2002.
0004 #  *     Distributed under the Boost Software License, Version 1.0. (See
0005 #  *     accompanying file LICENSE_1_0.txt or copy at
0006 #  *     http://www.boost.org/LICENSE_1_0.txt)
0007 #  *                                                                          *
0008 #  ************************************************************************** */
0009 0010 ">#
0011 # /* See http://www.boost.org for most recent version. */
0012 0013 ">#
0014 # ifndef BOOST_PREPROCESSOR_DETAIL_IS_NULLARY_HPP
0015 # define BOOST_PREPROCESSOR_DETAIL_IS_NULLARY_HPP
0016 0017 ">#
0018 # include <boost/preprocessor/config/config.hpp>
0019 # include <boost/preprocessor/detail/check.hpp>
0020 0021 ">#
0022 # /* BOOST_PP_IS_NULLARY */
0023 0024 ">#
0025 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0026 #    define BOOST_PP_IS_NULLARY(x) BOOST_PP_CHECK(x, BOOST_PP_IS_NULLARY_CHECK)
0027 # else
0028 #    define BOOST_PP_IS_NULLARY(x) BOOST_PP_IS_NULLARY_I(x)
0029 #    define BOOST_PP_IS_NULLARY_I(x) BOOST_PP_CHECK(x, BOOST_PP_IS_NULLARY_CHECK)
0030 # endif
0031 0032 ">#
0033 # define BOOST_PP_IS_NULLARY_CHECK() 1
0034 # define BOOST_PP_CHECK_RESULT_BOOST_PP_IS_NULLARY_CHECK 0, BOOST_PP_NIL
0035 0036 ">#
0037 # endif