preprocessor/detail/is_unary.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 # /* See http://www.boost.org for most recent version. */
0011 #
0012 # ifndef BOOST_PREPROCESSOR_DETAIL_IS_UNARY_HPP
0013 # define BOOST_PREPROCESSOR_DETAIL_IS_UNARY_HPP
0014 #
0015 # include <boost/preprocessor/config/config.hpp>
0016 # include <boost/preprocessor/detail/check.hpp>
0017 #
0018 # /* BOOST_PP_IS_UNARY */
0019 #
0020 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0021 #    define BOOST_PP_IS_UNARY(x) BOOST_PP_CHECK(x, BOOST_PP_IS_UNARY_CHECK)
0022 # else
0023 #    define BOOST_PP_IS_UNARY(x) BOOST_PP_IS_UNARY_I(x)
0024 #    define BOOST_PP_IS_UNARY_I(x) BOOST_PP_CHECK(x, BOOST_PP_IS_UNARY_CHECK)
0025 # endif
0026 #
0027 # define BOOST_PP_IS_UNARY_CHECK(a) 1
0028 # define BOOST_PP_CHECK_RESULT_BOOST_PP_IS_UNARY_CHECK 0, BOOST_PP_NIL
0029 #
0030 # endif