williamr@4: # /* **************************************************************************
williamr@4: #  *                                                                          *
williamr@4: #  *     (C) Copyright Paul Mensonides 2002.
williamr@4: #  *     Distributed under the Boost Software License, Version 1.0. (See
williamr@4: #  *     accompanying file LICENSE_1_0.txt or copy at
williamr@4: #  *     http://www.boost.org/LICENSE_1_0.txt)
williamr@4: #  *                                                                          *
williamr@4: #  ************************************************************************** */
williamr@4: #
williamr@4: # /* See http://www.boost.org for most recent version. */
williamr@4: #
williamr@4: # ifndef BOOST_PREPROCESSOR_SEQ_REVERSE_HPP
williamr@4: # define BOOST_PREPROCESSOR_SEQ_REVERSE_HPP
williamr@4: #
williamr@4: # include <boost/preprocessor/config/config.hpp>
williamr@4: # include <boost/preprocessor/facilities/empty.hpp>
williamr@4: # include <boost/preprocessor/seq/fold_left.hpp>
williamr@4: #
williamr@4: # /* BOOST_PP_SEQ_REVERSE */
williamr@4: #
williamr@4: # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
williamr@4: #    define BOOST_PP_SEQ_REVERSE(seq) BOOST_PP_SEQ_FOLD_LEFT(BOOST_PP_SEQ_REVERSE_O, BOOST_PP_EMPTY, seq)()
williamr@4: # else
williamr@4: #    define BOOST_PP_SEQ_REVERSE(seq) BOOST_PP_SEQ_REVERSE_I(seq)
williamr@4: #    define BOOST_PP_SEQ_REVERSE_I(seq) BOOST_PP_SEQ_FOLD_LEFT(BOOST_PP_SEQ_REVERSE_O, BOOST_PP_EMPTY, seq)()
williamr@4: # endif
williamr@4: #
williamr@4: # define BOOST_PP_SEQ_REVERSE_O(s, state, elem) (elem) state
williamr@4: #
williamr@4: # /* BOOST_PP_SEQ_REVERSE_S */
williamr@4: #
williamr@4: # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
williamr@4: #    define BOOST_PP_SEQ_REVERSE_S(s, seq) BOOST_PP_SEQ_FOLD_LEFT_ ## s(BOOST_PP_SEQ_REVERSE_O, BOOST_PP_EMPTY, seq)()
williamr@4: # else
williamr@4: #    define BOOST_PP_SEQ_REVERSE_S(s, seq) BOOST_PP_SEQ_REVERSE_S_I(s, seq)
williamr@4: #    define BOOST_PP_SEQ_REVERSE_S_I(s, seq) BOOST_PP_SEQ_FOLD_LEFT_ ## s(BOOST_PP_SEQ_REVERSE_O, BOOST_PP_EMPTY, seq)()
williamr@4: # endif
williamr@4: #
williamr@4: # endif