subseq.hpp 1.2 KB

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  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_SUBSEQ_HPP
  13. # define BOOST_PREPROCESSOR_SEQ_SUBSEQ_HPP
  14. #
  15. # include <boost/preprocessor/config/config.hpp>
  16. # include <boost/preprocessor/seq/first_n.hpp>
  17. # include <boost/preprocessor/seq/rest_n.hpp>
  18. #
  19. # /* BOOST_PP_SEQ_SUBSEQ */
  20. #
  21. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  22. # define BOOST_PP_SEQ_SUBSEQ(seq, i, len) BOOST_PP_SEQ_FIRST_N(len, BOOST_PP_SEQ_REST_N(i, seq))
  23. # else
  24. # define BOOST_PP_SEQ_SUBSEQ(seq, i, len) BOOST_PP_SEQ_SUBSEQ_I(seq, i, len)
  25. # define BOOST_PP_SEQ_SUBSEQ_I(seq, i, len) BOOST_PP_SEQ_FIRST_N(len, BOOST_PP_SEQ_REST_N(i, seq))
  26. # endif
  27. #
  28. # endif