text: # /* **************************************************************************
  #  *                                                                          *
  #  *     (C) Copyright Paul Mensonides 2002.
  #  *     Distributed under the Boost Software License, Version 1.0. (See
  #  *     accompanying file LICENSE_1_0.txt or copy at
  #  *     http://www.boost.org/LICENSE_1_0.txt)
  #  *                                                                          *
  #  ************************************************************************** */
  #
  # /* See http://www.boost.org for most recent version. */
  #
  # include <boost/preprocessor/slot/detail/shared.hpp>
  #
  # undef BOOST_PP_ITERATION_FINISH_4
  #
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_1
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_2
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_3
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_4
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_5
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_6
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_7
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_8
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_9
  # undef BOOST_PP_ITERATION_FINISH_4_DIGIT_10
  #
  # if BOOST_PP_SLOT_TEMP_3 == 0
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 0
  # elif BOOST_PP_SLOT_TEMP_3 == 1
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 1
  # elif BOOST_PP_SLOT_TEMP_3 == 2
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 2
  # elif BOOST_PP_SLOT_TEMP_3 == 3
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 3
  # elif BOOST_PP_SLOT_TEMP_3 == 4
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 4
  # elif BOOST_PP_SLOT_TEMP_3 == 5
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 5
  # elif BOOST_PP_SLOT_TEMP_3 == 6
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 6
  # elif BOOST_PP_SLOT_TEMP_3 == 7
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 7
  # elif BOOST_PP_SLOT_TEMP_3 == 8
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 8
  # elif BOOST_PP_SLOT_TEMP_3 == 9
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_3 9
  # endif
  #
  # if BOOST_PP_SLOT_TEMP_2 == 0
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 0
  # elif BOOST_PP_SLOT_TEMP_2 == 1
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 1
  # elif BOOST_PP_SLOT_TEMP_2 == 2
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 2
  # elif BOOST_PP_SLOT_TEMP_2 == 3
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 3
  # elif BOOST_PP_SLOT_TEMP_2 == 4
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 4
  # elif BOOST_PP_SLOT_TEMP_2 == 5
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 5
  # elif BOOST_PP_SLOT_TEMP_2 == 6
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 6
  # elif BOOST_PP_SLOT_TEMP_2 == 7
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 7
  # elif BOOST_PP_SLOT_TEMP_2 == 8
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 8
  # elif BOOST_PP_SLOT_TEMP_2 == 9
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_2 9
  # endif
  #
  # if BOOST_PP_SLOT_TEMP_1 == 0
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 0
  # elif BOOST_PP_SLOT_TEMP_1 == 1
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 1
  # elif BOOST_PP_SLOT_TEMP_1 == 2
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 2
  # elif BOOST_PP_SLOT_TEMP_1 == 3
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 3
  # elif BOOST_PP_SLOT_TEMP_1 == 4
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 4
  # elif BOOST_PP_SLOT_TEMP_1 == 5
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 5
  # elif BOOST_PP_SLOT_TEMP_1 == 6
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 6
  # elif BOOST_PP_SLOT_TEMP_1 == 7
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 7
  # elif BOOST_PP_SLOT_TEMP_1 == 8
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 8
  # elif BOOST_PP_SLOT_TEMP_1 == 9
  #    define BOOST_PP_ITERATION_FINISH_4_DIGIT_1 9
  # endif
  #
  # if BOOST_PP_ITERATION_FINISH_4_DIGIT_3
  #    define BOOST_PP_ITERATION_FINISH_4 BOOST_PP_SLOT_CC_3(BOOST_PP_ITERATION_FINISH_4_DIGIT_3, BOOST_PP_ITERATION_FINISH_4_DIGIT_2, BOOST_PP_ITERATION_FINISH_4_DIGIT_1)
  # elif BOOST_PP_ITERATION_FINISH_4_DIGIT_2
  #    define BOOST_PP_ITERATION_FINISH_4 BOOST_PP_SLOT_CC_2(BOOST_PP_ITERATION_FINISH_4_DIGIT_2, BOOST_PP_ITERATION_FINISH_4_DIGIT_1)
  # else
  #    define BOOST_PP_ITERATION_FINISH_4 BOOST_PP_ITERATION_FINISH_4_DIGIT_1
  # endif
  