1 # /* ************************************************************************** 2 # * * 3 # * (C) Copyright Paul Mensonides 2002. 4 # * Distributed under the Boost Software License, Version 1.0. (See 5 # * accompanying file LICENSE_1_0.txt or copy at 6 # * http://www.boost.org/LICENSE_1_0.txt) 7 # * * 8 # ************************************************************************** */ 9 # 10 # /* See http://www.boost.org for most recent version. */ 11 # 12 # ifndef BOOST_PREPROCESSOR_SEQ_FOR_EACH_HPP 13 # define BOOST_PREPROCESSOR_SEQ_FOR_EACH_HPP 14 # 15 # include <boost/preprocessor/arithmetic/dec.hpp> 16 # include <boost/preprocessor/config/config.hpp> 17 # include <boost/preprocessor/control/if.hpp> 18 # include <boost/preprocessor/control/iif.hpp> 19 # include <boost/preprocessor/repetition/for.hpp> 20 # include <boost/preprocessor/seq/seq.hpp> 21 # include <boost/preprocessor/seq/size.hpp> 22 # include <boost/preprocessor/seq/detail/is_empty.hpp> 23 # include <boost/preprocessor/tuple/elem.hpp> 24 # include <boost/preprocessor/tuple/rem.hpp> 25 # 26 # /* BOOST_PP_SEQ_FOR_EACH */ 27 # 28 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 29 # define BOOST_PP_SEQ_FOR_EACH(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK(macro, data, seq) 30 # else 31 # define BOOST_PP_SEQ_FOR_EACH(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_D(macro, data, seq) 32 # define BOOST_PP_SEQ_FOR_EACH_D(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK(macro, data, seq) 33 # endif 34 # 35 # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EXEC(macro, data, seq) BOOST_PP_FOR((macro, data, seq, BOOST_PP_SEQ_SIZE(seq)), BOOST_PP_SEQ_FOR_EACH_P, BOOST_PP_SEQ_FOR_EACH_O, BOOST_PP_SEQ_FOR_EACH_M) 36 # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EMPTY(macro, data, seq) 37 # 38 # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK(macro, data, seq) \ 39 BOOST_PP_IIF \ 40 ( \ 41 BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY(seq), \ 42 BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EXEC, \ 43 BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EMPTY \ 44 ) \ 45 (macro, data, seq) \ 46 /**/ 47 # 48 # define BOOST_PP_SEQ_FOR_EACH_P(r, x) BOOST_PP_TUPLE_ELEM(4, 3, x) 49 # 50 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT() 51 # define BOOST_PP_SEQ_FOR_EACH_O(r, x) BOOST_PP_SEQ_FOR_EACH_O_I x 52 # else 53 # define BOOST_PP_SEQ_FOR_EACH_O(r, x) BOOST_PP_SEQ_FOR_EACH_O_I(BOOST_PP_TUPLE_ELEM(4, 0, x), BOOST_PP_TUPLE_ELEM(4, 1, x), BOOST_PP_TUPLE_ELEM(4, 2, x), BOOST_PP_TUPLE_ELEM(4, 3, x)) 54 # endif 55 # 56 # define BOOST_PP_SEQ_FOR_EACH_O_I(macro, data, seq, sz) \ 57 BOOST_PP_SEQ_FOR_EACH_O_I_DEC(macro, data, seq, BOOST_PP_DEC(sz)) \ 58 /**/ 59 # define BOOST_PP_SEQ_FOR_EACH_O_I_DEC(macro, data, seq, sz) \ 60 ( \ 61 macro, \ 62 data, \ 63 BOOST_PP_IF \ 64 ( \ 65 sz, \ 66 BOOST_PP_SEQ_FOR_EACH_O_I_TAIL, \ 67 BOOST_PP_SEQ_FOR_EACH_O_I_NIL \ 68 ) \ 69 (seq), \ 70 sz \ 71 ) \ 72 /**/ 73 # define BOOST_PP_SEQ_FOR_EACH_O_I_TAIL(seq) BOOST_PP_SEQ_TAIL(seq) 74 # define BOOST_PP_SEQ_FOR_EACH_O_I_NIL(seq) BOOST_PP_NIL 75 # 76 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT() 77 # define BOOST_PP_SEQ_FOR_EACH_M(r, x) BOOST_PP_SEQ_FOR_EACH_M_IM(r, BOOST_PP_TUPLE_REM_4 x) 78 # define BOOST_PP_SEQ_FOR_EACH_M_IM(r, im) BOOST_PP_SEQ_FOR_EACH_M_I(r, im) 79 # else 80 # define BOOST_PP_SEQ_FOR_EACH_M(r, x) BOOST_PP_SEQ_FOR_EACH_M_I(r, BOOST_PP_TUPLE_ELEM(4, 0, x), BOOST_PP_TUPLE_ELEM(4, 1, x), BOOST_PP_TUPLE_ELEM(4, 2, x), BOOST_PP_TUPLE_ELEM(4, 3, x)) 81 # endif 82 # 83 # define BOOST_PP_SEQ_FOR_EACH_M_I(r, macro, data, seq, sz) macro(r, data, BOOST_PP_SEQ_HEAD(seq)) 84 # 85 # /* BOOST_PP_SEQ_FOR_EACH_R */ 86 # 87 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 88 # define BOOST_PP_SEQ_FOR_EACH_R(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_R(r, macro, data, seq) 89 # else 90 # define BOOST_PP_SEQ_FOR_EACH_R(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_R_I(r, macro, data, seq) 91 # define BOOST_PP_SEQ_FOR_EACH_R_I(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_R(r, macro, data, seq) 92 # endif 93 # 94 # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EXEC_R(r, macro, data, seq) BOOST_PP_FOR_ ## r((macro, data, seq, BOOST_PP_SEQ_SIZE(seq)), BOOST_PP_SEQ_FOR_EACH_P, BOOST_PP_SEQ_FOR_EACH_O, BOOST_PP_SEQ_FOR_EACH_M) 95 # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EMPTY_R(r, macro, data, seq) 96 # 97 # define BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_R(r, macro, data, seq) \ 98 BOOST_PP_IIF \ 99 ( \ 100 BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY(seq), \ 101 BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EXEC_R, \ 102 BOOST_PP_SEQ_FOR_EACH_DETAIL_CHECK_EMPTY_R \ 103 ) \ 104 (r, macro, data, seq) \ 105 /**/ 106 # 107 # endif 108