preprocessor/list/cat.hpp

0001 # /* Copyright (C) 2001
0002 #  * Housemarque Oy
0003 #  * http://www.housemarque.com
0004 #  *
0005 #  * Distributed under the Boost Software License, Version 1.0. (See
0006 #  * accompanying file LICENSE_1_0.txt or copy at
0007 #  * http://www.boost.org/LICENSE_1_0.txt)
0008 #  */
0009 0010 ">#
0011 # /* Revised by Paul Mensonides (2002) */
0012 0013 ">#
0014 # /* See http://www.boost.org for most recent version. */
0015 0016 ">#
0017 # ifndef BOOST_PREPROCESSOR_LIST_CAT_HPP
0018 # define BOOST_PREPROCESSOR_LIST_CAT_HPP
0019 0020 ">#
0021 # include <boost/preprocessor/cat.hpp>
0022 # include <boost/preprocessor/config/config.hpp>
0023 # include <boost/preprocessor/list/adt.hpp>
0024 # include <boost/preprocessor/list/fold_left.hpp>
0025 0026 ">#
0027 # /* BOOST_PP_LIST_CAT */
0028 0029 ">#
0030 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0031 #    define BOOST_PP_LIST_CAT(list) BOOST_PP_LIST_FOLD_LEFT(BOOST_PP_LIST_CAT_O, BOOST_PP_LIST_FIRST(list), BOOST_PP_LIST_REST(list))
0032 # else
0033 #    define BOOST_PP_LIST_CAT(list) BOOST_PP_LIST_CAT_I(list)
0034 #    define BOOST_PP_LIST_CAT_I(list) BOOST_PP_LIST_FOLD_LEFT(BOOST_PP_LIST_CAT_O, BOOST_PP_LIST_FIRST(list), BOOST_PP_LIST_REST(list))
0035 # endif
0036 0037 ">#
0038 # define BOOST_PP_LIST_CAT_O(d, s, x) BOOST_PP_CAT(s, x)
0039 0040 ">#
0041 # /* BOOST_PP_LIST_CAT_D */
0042 0043 ">#
0044 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0045 #    define BOOST_PP_LIST_CAT_D(d, list) BOOST_PP_LIST_FOLD_LEFT_ ## d(BOOST_PP_LIST_CAT_O, BOOST_PP_LIST_FIRST(list), BOOST_PP_LIST_REST(list))
0046 # else
0047 #    define BOOST_PP_LIST_CAT_D(d, list) BOOST_PP_LIST_CAT_D_I(d, list)
0048 #    define BOOST_PP_LIST_CAT_D_I(d, list) BOOST_PP_LIST_FOLD_LEFT_ ## d(BOOST_PP_LIST_CAT_O, BOOST_PP_LIST_FIRST(list), BOOST_PP_LIST_REST(list))
0049 # endif
0050 0051 ">#
0052 # endif