aux_/preprocessor/convert_binary_seq.hpp

0001 // Copyright Cromwell D. Enage 2013.
0002 // Distributed under the Boost Software License, Version 1.0.
0003 // (See accompanying file LICENSE_1_0.txt or copy at
0004 // http://www.boost.org/LICENSE_1_0.txt)
0005
0006 #ifndef BOOST_PARAMETER_AUX_PREPROCESSOR_CONVERT_BINARY_SEQ_HPP
0007 #define BOOST_PARAMETER_AUX_PREPROCESSOR_CONVERT_BINARY_SEQ_HPP
0008
0009 #include <boost/preprocessor/seq/size.hpp>
0010 #include <boost/preprocessor/seq/push_back.hpp>
0011
0012 #define BOOST_PARAMETER_AUX_PP_AUGMENT_BINARY_SEQ_INDEX_FOLD_OP(s, seq, idx) \
0013     BOOST_PP_SEQ_PUSH_BACK(seq, (idx, BOOST_PP_SEQ_SIZE(seq)))
0014 /**/
0015
0016 #include <boost/preprocessor/control/iif.hpp>
0017 #include <boost/preprocessor/seq/elem.hpp>
0018 #include <boost/preprocessor/tuple/elem.hpp>
0019
0020 #define BOOST_PARAMETER_AUX_PP_CONVERT_BINARY_SEQ_FOLD_OP(s, seq, elem) \
0021     ( \
0022         BOOST_PP_SEQ_PUSH_BACK( \
0023             BOOST_PP_SEQ_ELEM(0, seq) \
0024           , BOOST_PP_IIF( \
0025                 BOOST_PP_TUPLE_ELEM(2, 0, elem) \
0026               , BOOST_PP_SEQ_ELEM(2, seq) \
0027               , BOOST_PP_SEQ_ELEM(1, seq) \
0028             )(BOOST_PP_TUPLE_ELEM(2, 1, elem), BOOST_PP_SEQ_ELEM(3, seq)) \
0029         ) \
0030     )(BOOST_PP_SEQ_ELEM(1, seq))(BOOST_PP_SEQ_ELEM(2, seq)) \
0031     (BOOST_PP_SEQ_ELEM(3, seq))
0032 /**/
0033
0034 #include <boost/parameter/aux_/preprocessor/seq_enum.hpp>
0035 #include <boost/preprocessor/facilities/empty.hpp>
0036 #include <boost/preprocessor/seq/seq.hpp>
0037 #include <boost/preprocessor/seq/fold_left.hpp>
0038
0039 #define BOOST_PARAMETER_AUX_PP_CONVERT_BINARY_SEQ(seq, macro0, macro1, data) \
0040     BOOST_PARAMETER_SEQ_ENUM( \
0041         BOOST_PP_SEQ_ELEM( \
0042             0 \
0043           , BOOST_PP_SEQ_FOLD_LEFT( \
0044                 BOOST_PARAMETER_AUX_PP_CONVERT_BINARY_SEQ_FOLD_OP \
0045               , (BOOST_PP_SEQ_NIL)(macro0)(macro1)(data) \
0046               , BOOST_PP_SEQ_FOLD_LEFT( \
0047                     BOOST_PARAMETER_AUX_PP_AUGMENT_BINARY_SEQ_INDEX_FOLD_OP \
0048                   , BOOST_PP_EMPTY() \
0049                   , seq \
0050                 ) \
0051             ) \
0052         ) \
0053     )
0054 /**/
0055
0056 #endif  // include guard
0057