preprocessor/list/size.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_SIZE_HPP
0018 # define BOOST_PREPROCESSOR_LIST_SIZE_HPP
0019 0020 ">#
0021 # include <boost/preprocessor/config/config.hpp>
0022 0023 ">#
0024 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
0025 0026 ">#
0027 # include <boost/preprocessor/arithmetic/inc.hpp>
0028 # include <boost/preprocessor/control/while.hpp>
0029 # include <boost/preprocessor/list/adt.hpp>
0030 # include <boost/preprocessor/tuple/elem.hpp>
0031 # include <boost/preprocessor/tuple/rem.hpp>
0032 0033 ">#
0034 # /* BOOST_PP_LIST_SIZE */
0035 0036 ">#
0037 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0038 #    define BOOST_PP_LIST_SIZE(list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list)))
0039 # else
0040 #    define BOOST_PP_LIST_SIZE(list) BOOST_PP_LIST_SIZE_I(list)
0041 #    define BOOST_PP_LIST_SIZE_I(list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list)))
0042 # endif
0043 0044 ">#
0045 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0046 #    define BOOST_PP_LIST_SIZE_P(d, rl) BOOST_PP_LIST_IS_CONS(BOOST_PP_TUPLE_ELEM(2, 1, rl))
0047 # else
0048 #    define BOOST_PP_LIST_SIZE_P(d, rl) BOOST_PP_LIST_SIZE_P_I(BOOST_PP_TUPLE_REM_2 rl)
0049 #    define BOOST_PP_LIST_SIZE_P_I(im) BOOST_PP_LIST_SIZE_P_II(im)
0050 #    define BOOST_PP_LIST_SIZE_P_II(r, l) BOOST_PP_LIST_IS_CONS(l)
0051 # endif
0052 0053 ">#
0054 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0055 #    define BOOST_PP_LIST_SIZE_O(d, rl) (BOOST_PP_INC(BOOST_PP_TUPLE_ELEM(2, 0, rl)), BOOST_PP_LIST_REST(BOOST_PP_TUPLE_ELEM(2, 1, rl)))
0056 # else
0057 #    define BOOST_PP_LIST_SIZE_O(d, rl) BOOST_PP_LIST_SIZE_O_I(BOOST_PP_TUPLE_REM_2 rl)
0058 #    define BOOST_PP_LIST_SIZE_O_I(im) BOOST_PP_LIST_SIZE_O_II(im)
0059 #    define BOOST_PP_LIST_SIZE_O_II(r, l) (BOOST_PP_INC(r), BOOST_PP_LIST_REST(l))
0060 # endif
0061 0062 ">#
0063 # /* BOOST_PP_LIST_SIZE_D */
0064 0065 ">#
0066 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0067 #    define BOOST_PP_LIST_SIZE_D(d, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list)))
0068 # else
0069 #    define BOOST_PP_LIST_SIZE_D(d, list) BOOST_PP_LIST_SIZE_D_I(d, list)
0070 #    define BOOST_PP_LIST_SIZE_D_I(d, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (0, list)))
0071 # endif
0072 0073 ">#
0074 # else
0075 0076 ">#
0077 # include <boost/preprocessor/arithmetic/inc.hpp>
0078 # include <boost/preprocessor/control/iif.hpp>
0079 # include <boost/preprocessor/control/while.hpp>
0080 # include <boost/preprocessor/facilities/identity.hpp>
0081 # include <boost/preprocessor/list/adt.hpp>
0082 # include <boost/preprocessor/tuple/elem.hpp>
0083 # include <boost/preprocessor/tuple/rem.hpp>
0084 0085 ">#
0086 # /* BOOST_PP_LIST_SIZE */
0087 0088 ">#
0089 #    define BOOST_PP_LIST_SIZE(list) BOOST_PP_IIF(BOOST_PP_LIST_IS_CONS(list),BOOST_PP_LIST_SIZE_S,BOOST_PP_IDENTITY_N(0,1))(list)
0090 #    define BOOST_PP_LIST_SIZE_S(list) BOOST_PP_LIST_SIZE_DO(BOOST_PP_LIST_REST(list))
0091 0092 ">#
0093 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0094 #    define BOOST_PP_LIST_SIZE_DO(list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (1, list)))
0095 # else
0096 #    define BOOST_PP_LIST_SIZE_DO(list) BOOST_PP_LIST_SIZE_I(list)
0097 #    define BOOST_PP_LIST_SIZE_I(list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (1, list)))
0098 # endif
0099 0100 ">#
0101 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0102 #    define BOOST_PP_LIST_SIZE_P(d, rl) BOOST_PP_LIST_IS_CONS(BOOST_PP_TUPLE_ELEM(2, 1, rl))
0103 # else
0104 #    define BOOST_PP_LIST_SIZE_P(d, rl) BOOST_PP_LIST_SIZE_P_I(BOOST_PP_TUPLE_REM_2 rl)
0105 #    define BOOST_PP_LIST_SIZE_P_I(im) BOOST_PP_LIST_SIZE_P_II(im)
0106 #    define BOOST_PP_LIST_SIZE_P_II(r, l) BOOST_PP_LIST_IS_CONS(l)
0107 # endif
0108 0109 ">#
0110 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0111 #    define BOOST_PP_LIST_SIZE_O(d, rl) (BOOST_PP_INC(BOOST_PP_TUPLE_ELEM(2, 0, rl)), BOOST_PP_LIST_REST(BOOST_PP_TUPLE_ELEM(2, 1, rl)))
0112 # else
0113 #    define BOOST_PP_LIST_SIZE_O(d, rl) BOOST_PP_LIST_SIZE_O_I(BOOST_PP_TUPLE_REM_2 rl)
0114 #    define BOOST_PP_LIST_SIZE_O_I(im) BOOST_PP_LIST_SIZE_O_II(im)
0115 #    define BOOST_PP_LIST_SIZE_O_II(r, l) (BOOST_PP_INC(r), BOOST_PP_LIST_REST(l))
0116 # endif
0117 0118 ">#
0119 # /* BOOST_PP_LIST_SIZE_D */
0120 0121 ">#
0122 #    define BOOST_PP_LIST_SIZE_D(d, list) BOOST_PP_IIF(BOOST_PP_LIST_IS_CONS(list),BOOST_PP_LIST_SIZE_S_D,BOOST_PP_IDENTITY_N(0,2))(d,list)
0123 #    define BOOST_PP_LIST_SIZE_S_D(d,list) BOOST_PP_LIST_SIZE_DO_D(d,BOOST_PP_LIST_REST(list))
0124 0125 ">#
0126 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0127 #    define BOOST_PP_LIST_SIZE_DO_D(d, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (1, list)))
0128 # else
0129 #    define BOOST_PP_LIST_SIZE_DO_D(d, list) BOOST_PP_LIST_SIZE_D_I(d, list)
0130 #    define BOOST_PP_LIST_SIZE_D_I(d, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_SIZE_P, BOOST_PP_LIST_SIZE_O, (1, list)))
0131 # endif
0132 0133 ">#
0134 # endif
0135 0136 ">#
0137 # endif