boost/preprocessor/seq/for_each.hpp

   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/repetition/for.hpp>
  18 # include <boost/preprocessor/seq/seq.hpp>
  19 # include <boost/preprocessor/seq/size.hpp>
  20 # include <boost/preprocessor/tuple/elem.hpp>
  21 # include <boost/preprocessor/tuple/rem.hpp>
  22 #
  23 # /* BOOST_PP_SEQ_FOR_EACH */
  24 #
  25 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  26 #    define BOOST_PP_SEQ_FOR_EACH(macro, data, seq) BOOST_PP_FOR((macro, data, seq (nil)), BOOST_PP_SEQ_FOR_EACH_P, BOOST_PP_SEQ_FOR_EACH_O, BOOST_PP_SEQ_FOR_EACH_M)
  27 # else
  28 #    define BOOST_PP_SEQ_FOR_EACH(macro, data, seq) BOOST_PP_SEQ_FOR_EACH_D(macro, data, seq)
  29 #    define BOOST_PP_SEQ_FOR_EACH_D(macro, data, seq) BOOST_PP_FOR((macro, data, seq (nil)), BOOST_PP_SEQ_FOR_EACH_P, BOOST_PP_SEQ_FOR_EACH_O, BOOST_PP_SEQ_FOR_EACH_M)
  30 # endif
  31 #
  32 # define BOOST_PP_SEQ_FOR_EACH_P(r, x) BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(BOOST_PP_TUPLE_ELEM(3, 2, x)))
  33 #
  34 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  35 #    define BOOST_PP_SEQ_FOR_EACH_O(r, x) BOOST_PP_SEQ_FOR_EACH_O_I x
  36 # else
  37 #    define BOOST_PP_SEQ_FOR_EACH_O(r, x) BOOST_PP_SEQ_FOR_EACH_O_I(BOOST_PP_TUPLE_ELEM(3, 0, x), BOOST_PP_TUPLE_ELEM(3, 1, x), BOOST_PP_TUPLE_ELEM(3, 2, x))
  38 # endif
  39 #
  40 # define BOOST_PP_SEQ_FOR_EACH_O_I(macro, data, seq) (macro, data, BOOST_PP_SEQ_TAIL(seq))
  41 #
  42 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  43 #    define BOOST_PP_SEQ_FOR_EACH_M(r, x) BOOST_PP_SEQ_FOR_EACH_M_IM(r, BOOST_PP_TUPLE_REM_3 x)
  44 #    define BOOST_PP_SEQ_FOR_EACH_M_IM(r, im) BOOST_PP_SEQ_FOR_EACH_M_I(r, im)
  45 # else
  46 #    define BOOST_PP_SEQ_FOR_EACH_M(r, x) BOOST_PP_SEQ_FOR_EACH_M_I(r, BOOST_PP_TUPLE_ELEM(3, 0, x), BOOST_PP_TUPLE_ELEM(3, 1, x), BOOST_PP_TUPLE_ELEM(3, 2, x))
  47 # endif
  48 #
  49 # define BOOST_PP_SEQ_FOR_EACH_M_I(r, macro, data, seq) macro(r, data, BOOST_PP_SEQ_HEAD(seq))
  50 #
  51 # /* BOOST_PP_SEQ_FOR_EACH_R */
  52 #
  53 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  54 #    define BOOST_PP_SEQ_FOR_EACH_R(r, macro, data, seq) BOOST_PP_FOR_ ## r((macro, data, seq (nil)), BOOST_PP_SEQ_FOR_EACH_P, BOOST_PP_SEQ_FOR_EACH_O, BOOST_PP_SEQ_FOR_EACH_M)
  55 # else
  56 #    define BOOST_PP_SEQ_FOR_EACH_R(r, macro, data, seq) BOOST_PP_SEQ_FOR_EACH_R_I(r, macro, data, seq)
  57 #    define BOOST_PP_SEQ_FOR_EACH_R_I(r, macro, data, seq) BOOST_PP_FOR_ ## r((macro, data, seq (nil)), BOOST_PP_SEQ_FOR_EACH_P, BOOST_PP_SEQ_FOR_EACH_O, BOOST_PP_SEQ_FOR_EACH_M)
  58 # endif
  59 #
  60 # endif