preprocessor/list/enum.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_ENUM_HPP
0018 # define BOOST_PREPROCESSOR_LIST_ENUM_HPP
0019 0020 ">#
0021 # include <boost/preprocessor/config/config.hpp>
0022 # include <boost/preprocessor/control/iif.hpp>
0023 # include <boost/preprocessor/list/adt.hpp>
0024 # include <boost/preprocessor/list/for_each_i.hpp>
0025 # include <boost/preprocessor/punctuation/comma_if.hpp>
0026 # include <boost/preprocessor/variadic/has_opt.hpp>
0027 0028 ">#
0029 # /* BOOST_PP_LIST_ENUM */
0030 0031 ">#
0032 # if BOOST_PP_VARIADIC_HAS_OPT()
0033 #    if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0034 #        define BOOST_PP_LIST_ENUM_NOT_EMPTY(list) BOOST_PP_LIST_FOR_EACH_I(BOOST_PP_LIST_ENUM_O, BOOST_PP_NIL, list)
0035 #    else
0036 #        define BOOST_PP_LIST_ENUM_NOT_EMPTY(list) BOOST_PP_LIST_ENUM_I(list)
0037 #        define BOOST_PP_LIST_ENUM_I(list) BOOST_PP_LIST_FOR_EACH_I(BOOST_PP_LIST_ENUM_O, BOOST_PP_NIL, list)
0038 #    endif
0039 #    define BOOST_PP_LIST_ENUM_EMPTY(list)
0040 #    define BOOST_PP_LIST_ENUM(list) BOOST_PP_IIF(BOOST_PP_LIST_IS_NIL(list),BOOST_PP_LIST_ENUM_EMPTY,BOOST_PP_LIST_ENUM_NOT_EMPTY)(list)
0041 # elif ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0042 #    define BOOST_PP_LIST_ENUM(list) BOOST_PP_LIST_FOR_EACH_I(BOOST_PP_LIST_ENUM_O, BOOST_PP_NIL, list)
0043 # else
0044 #    define BOOST_PP_LIST_ENUM(list) BOOST_PP_LIST_ENUM_I(list)
0045 #    define BOOST_PP_LIST_ENUM_I(list) BOOST_PP_LIST_FOR_EACH_I(BOOST_PP_LIST_ENUM_O, BOOST_PP_NIL, list)
0046 # endif
0047 0048 ">#
0049 # define BOOST_PP_LIST_ENUM_O(r, _, i, elem) BOOST_PP_COMMA_IF(i) elem
0050 0051 ">#
0052 # /* BOOST_PP_LIST_ENUM_R */
0053 0054 ">#
0055 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0056 #    define BOOST_PP_LIST_ENUM_R(r, list) BOOST_PP_LIST_FOR_EACH_I_R(r, BOOST_PP_LIST_ENUM_O, BOOST_PP_NIL, list)
0057 # else
0058 #    define BOOST_PP_LIST_ENUM_R(r, list) BOOST_PP_LIST_ENUM_R_I(r, list)
0059 #    define BOOST_PP_LIST_ENUM_R_I(r, list) BOOST_PP_LIST_FOR_EACH_I_R(r, BOOST_PP_LIST_ENUM_O, BOOST_PP_NIL, list)
0060 # endif
0061 0062 ">#
0063 # endif