for_each.hpp 3.1 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_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