transform.hpp 2.3 KB

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  1. # /* Copyright (C) 2001
  2. # * Housemarque Oy
  3. # * http://www.housemarque.com
  4. # *
  5. # * Distributed under the Boost Software License, Version 1.0. (See
  6. # * accompanying file LICENSE_1_0.txt or copy at
  7. # * http://www.boost.org/LICENSE_1_0.txt)
  8. # */
  9. #
  10. # /* Revised by Paul Mensonides (2002) */
  11. #
  12. # /* See http://www.boost.org for most recent version. */
  13. #
  14. # ifndef BOOST_PREPROCESSOR_LIST_TRANSFORM_HPP
  15. # define BOOST_PREPROCESSOR_LIST_TRANSFORM_HPP
  16. #
  17. # include <boost/preprocessor/config/config.hpp>
  18. # include <boost/preprocessor/list/fold_right.hpp>
  19. # include <boost/preprocessor/tuple/elem.hpp>
  20. # include <boost/preprocessor/tuple/rem.hpp>
  21. #
  22. # /* BOOST_PP_LIST_TRANSFORM */
  23. #
  24. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  25. # define BOOST_PP_LIST_TRANSFORM(op, data, list) BOOST_PP_TUPLE_ELEM(3, 2, BOOST_PP_LIST_FOLD_RIGHT(BOOST_PP_LIST_TRANSFORM_O, (op, data, BOOST_PP_NIL), list))
  26. # else
  27. # define BOOST_PP_LIST_TRANSFORM(op, data, list) BOOST_PP_LIST_TRANSFORM_I(op, data, list)
  28. # define BOOST_PP_LIST_TRANSFORM_I(op, data, list) BOOST_PP_TUPLE_ELEM(3, 2, BOOST_PP_LIST_FOLD_RIGHT(BOOST_PP_LIST_TRANSFORM_O, (op, data, BOOST_PP_NIL), list))
  29. # endif
  30. #
  31. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  32. # define BOOST_PP_LIST_TRANSFORM_O(d, odr, elem) BOOST_PP_LIST_TRANSFORM_O_D(d, BOOST_PP_TUPLE_ELEM(3, 0, odr), BOOST_PP_TUPLE_ELEM(3, 1, odr), BOOST_PP_TUPLE_ELEM(3, 2, odr), elem)
  33. # else
  34. # define BOOST_PP_LIST_TRANSFORM_O(d, odr, elem) BOOST_PP_LIST_TRANSFORM_O_I(d, BOOST_PP_TUPLE_REM_3 odr, elem)
  35. # define BOOST_PP_LIST_TRANSFORM_O_I(d, im, elem) BOOST_PP_LIST_TRANSFORM_O_D(d, im, elem)
  36. # endif
  37. #
  38. # define BOOST_PP_LIST_TRANSFORM_O_D(d, op, data, res, elem) (op, data, (op(d, data, elem), res))
  39. #
  40. # /* BOOST_PP_LIST_TRANSFORM_D */
  41. #
  42. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  43. # define BOOST_PP_LIST_TRANSFORM_D(d, op, data, list) BOOST_PP_TUPLE_ELEM(3, 2, BOOST_PP_LIST_FOLD_RIGHT_ ## d(BOOST_PP_LIST_TRANSFORM_O, (op, data, BOOST_PP_NIL), list))
  44. # else
  45. # define BOOST_PP_LIST_TRANSFORM_D(d, op, data, list) BOOST_PP_LIST_TRANSFORM_D_I(d, op, data, list)
  46. # define BOOST_PP_LIST_TRANSFORM_D_I(d, op, data, list) BOOST_PP_TUPLE_ELEM(3, 2, BOOST_PP_LIST_FOLD_RIGHT_ ## d(BOOST_PP_LIST_TRANSFORM_O, (op, data, BOOST_PP_NIL), list))
  47. # endif
  48. #
  49. # endif