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

#  *                                                                          *

#  *     (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