1# /* Copyright (C) 2001
2# * Housemarque Oy
3# * http://www.housemarque.com
4# *
5# * Distributed under the Boost Software License, Version 1.0. (See
6# * accompanying file LICENSE_1_0.txt or copy at
7# * http://www.boost.org/LICENSE_1_0.txt)
8# */
9#
10# /* Revised by Paul Mensonides (2002) */
11#
12# /* See http://www.boost.org for most recent version. */
13#
14# ifndef BOOST_PREPROCESSOR_REPETITION_ENUM_HPP
15# define BOOST_PREPROCESSOR_REPETITION_ENUM_HPP
16#
17# include <boost/preprocessor/cat.hpp>
18# include <boost/preprocessor/config/config.hpp>
19# include <boost/preprocessor/debug/error.hpp>
20# include <boost/preprocessor/detail/auto_rec.hpp>
21# include <boost/preprocessor/punctuation/comma_if.hpp>
22# include <boost/preprocessor/repetition/repeat.hpp>
23# include <boost/preprocessor/tuple/elem.hpp>
24# include <boost/preprocessor/tuple/rem.hpp>
25#
26# /* BOOST_PP_ENUM */
27#
28# if 0
29# define BOOST_PP_ENUM(count, macro, data)
30# endif
31#
32# define BOOST_PP_ENUM BOOST_PP_CAT(BOOST_PP_ENUM_, BOOST_PP_AUTO_REC(BOOST_PP_REPEAT_P, 4))
33#
34# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
35# define BOOST_PP_ENUM_1(c, m, d) BOOST_PP_REPEAT_1(c, BOOST_PP_ENUM_M_1, (m, d))
36# define BOOST_PP_ENUM_2(c, m, d) BOOST_PP_REPEAT_2(c, BOOST_PP_ENUM_M_2, (m, d))
37# define BOOST_PP_ENUM_3(c, m, d) BOOST_PP_REPEAT_3(c, BOOST_PP_ENUM_M_3, (m, d))
38# else
39# define BOOST_PP_ENUM_1(c, m, d) BOOST_PP_ENUM_1_I(c, m, d)
40# define BOOST_PP_ENUM_2(c, m, d) BOOST_PP_ENUM_2_I(c, m, d)
41# define BOOST_PP_ENUM_3(c, m, d) BOOST_PP_ENUM_3_I(c, m, d)
42# define BOOST_PP_ENUM_1_I(c, m, d) BOOST_PP_REPEAT_1(c, BOOST_PP_ENUM_M_1, (m, d))
43# define BOOST_PP_ENUM_2_I(c, m, d) BOOST_PP_REPEAT_2(c, BOOST_PP_ENUM_M_2, (m, d))
44# define BOOST_PP_ENUM_3_I(c, m, d) BOOST_PP_REPEAT_3(c, BOOST_PP_ENUM_M_3, (m, d))
45# endif
46#
47# define BOOST_PP_ENUM_4(c, m, d) BOOST_PP_ERROR(0x0003)
48#
49# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
50# define BOOST_PP_ENUM_M_1(z, n, md) BOOST_PP_ENUM_M_1_IM(z, n, BOOST_PP_TUPLE_REM_2 md)
51# define BOOST_PP_ENUM_M_2(z, n, md) BOOST_PP_ENUM_M_2_IM(z, n, BOOST_PP_TUPLE_REM_2 md)
52# define BOOST_PP_ENUM_M_3(z, n, md) BOOST_PP_ENUM_M_3_IM(z, n, BOOST_PP_TUPLE_REM_2 md)
53# define BOOST_PP_ENUM_M_1_IM(z, n, im) BOOST_PP_ENUM_M_1_I(z, n, im)
54# define BOOST_PP_ENUM_M_2_IM(z, n, im) BOOST_PP_ENUM_M_2_I(z, n, im)
55# define BOOST_PP_ENUM_M_3_IM(z, n, im) BOOST_PP_ENUM_M_3_I(z, n, im)
56# else
57# define BOOST_PP_ENUM_M_1(z, n, md) BOOST_PP_ENUM_M_1_I(z, n, BOOST_PP_TUPLE_ELEM(2, 0, md), BOOST_PP_TUPLE_ELEM(2, 1, md))
58# define BOOST_PP_ENUM_M_2(z, n, md) BOOST_PP_ENUM_M_2_I(z, n, BOOST_PP_TUPLE_ELEM(2, 0, md), BOOST_PP_TUPLE_ELEM(2, 1, md))
59# define BOOST_PP_ENUM_M_3(z, n, md) BOOST_PP_ENUM_M_3_I(z, n, BOOST_PP_TUPLE_ELEM(2, 0, md), BOOST_PP_TUPLE_ELEM(2, 1, md))
60# endif
61#
62# define BOOST_PP_ENUM_M_1_I(z, n, m, d) BOOST_PP_COMMA_IF(n) m(z, n, d)
63# define BOOST_PP_ENUM_M_2_I(z, n, m, d) BOOST_PP_COMMA_IF(n) m(z, n, d)
64# define BOOST_PP_ENUM_M_3_I(z, n, m, d) BOOST_PP_COMMA_IF(n) m(z, n, d)
65#
66# endif
67

source code of include/boost/preprocessor/repetition/enum.hpp