seq.hpp 1.6 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_SEQ_HPP
  13. # define BOOST_PREPROCESSOR_SEQ_SEQ_HPP
  14. #
  15. # include <boost/preprocessor/config/config.hpp>
  16. # include <boost/preprocessor/seq/elem.hpp>
  17. #
  18. # /* BOOST_PP_SEQ_HEAD */
  19. #
  20. # define BOOST_PP_SEQ_HEAD(seq) BOOST_PP_SEQ_ELEM(0, seq)
  21. #
  22. # /* BOOST_PP_SEQ_TAIL */
  23. #
  24. # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
  25. # define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_1((seq))
  26. # define BOOST_PP_SEQ_TAIL_1(par) BOOST_PP_SEQ_TAIL_2 ## par
  27. # define BOOST_PP_SEQ_TAIL_2(seq) BOOST_PP_SEQ_TAIL_I ## seq
  28. # elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
  29. # define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_ID(BOOST_PP_SEQ_TAIL_I seq)
  30. # define BOOST_PP_SEQ_TAIL_ID(id) id
  31. # elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  32. # define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_D(seq)
  33. # define BOOST_PP_SEQ_TAIL_D(seq) BOOST_PP_SEQ_TAIL_I seq
  34. # else
  35. # define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_I seq
  36. # endif
  37. #
  38. # define BOOST_PP_SEQ_TAIL_I(x)
  39. #
  40. # /* BOOST_PP_SEQ_NIL */
  41. #
  42. # define BOOST_PP_SEQ_NIL(x) (x)
  43. #
  44. # endif