# /* **************************************************************************

 #  *                                                                          *

 #  *     (C) Copyright Paul Mensonides 2002.

 #  *     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_DETAIL_CHECK_HPP

 # define BOOST_PREPROCESSOR_DETAIL_CHECK_HPP

 #

 # include <boost/preprocessor/cat.hpp>

 # include <boost/preprocessor/config/config.hpp>

 #

 # /* BOOST_PP_CHECK */

 #

 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()

 #    define BOOST_PP_CHECK(x, type) BOOST_PP_CHECK_D(x, type)

 # else

 #    define BOOST_PP_CHECK(x, type) BOOST_PP_CHECK_OO((x, type))

 #    define BOOST_PP_CHECK_OO(par) BOOST_PP_CHECK_D ## par

 # endif

 #

 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC() && ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_DMC()

 #    define BOOST_PP_CHECK_D(x, type) BOOST_PP_CHECK_1(BOOST_PP_CAT(BOOST_PP_CHECK_RESULT_, type x))

 #    define BOOST_PP_CHECK_1(chk) BOOST_PP_CHECK_2(chk)

 #    define BOOST_PP_CHECK_2(res, _) res

 # elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()

 #    define BOOST_PP_CHECK_D(x, type) BOOST_PP_CHECK_1(type x)

 #    define BOOST_PP_CHECK_1(chk) BOOST_PP_CHECK_2(chk)

 #    define BOOST_PP_CHECK_2(chk) BOOST_PP_CHECK_3((BOOST_PP_CHECK_RESULT_ ## chk))

 #    define BOOST_PP_CHECK_3(im) BOOST_PP_CHECK_5(BOOST_PP_CHECK_4 im)

 #    define BOOST_PP_CHECK_4(res, _) res

 #    define BOOST_PP_CHECK_5(res) res

 # else // DMC

 #    define BOOST_PP_CHECK_D(x, type) BOOST_PP_CHECK_OO((type x))

 #    define BOOST_PP_CHECK_OO(par) BOOST_PP_CHECK_0 ## par

 #    define BOOST_PP_CHECK_0(chk) BOOST_PP_CHECK_1(BOOST_PP_CAT(BOOST_PP_CHECK_RESULT_, chk))

 #    define BOOST_PP_CHECK_1(chk) BOOST_PP_CHECK_2(chk)

 #    define BOOST_PP_CHECK_2(res, _) res

 # endif

 #

 # define BOOST_PP_CHECK_RESULT_1 1, BOOST_PP_NIL

 #

 # endif