add.hpp 1.8 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_ARITHMETIC_ADD_HPP
  15. # define BOOST_PREPROCESSOR_ARITHMETIC_ADD_HPP
  16. #
  17. # include <boost/preprocessor/arithmetic/dec.hpp>
  18. # include <boost/preprocessor/arithmetic/inc.hpp>
  19. # include <boost/preprocessor/config/config.hpp>
  20. # include <boost/preprocessor/control/while.hpp>
  21. # include <boost/preprocessor/tuple/elem.hpp>
  22. #
  23. # /* BOOST_PP_ADD */
  24. #
  25. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  26. # define BOOST_PP_ADD(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  27. # else
  28. # define BOOST_PP_ADD(x, y) BOOST_PP_ADD_I(x, y)
  29. # define BOOST_PP_ADD_I(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  30. # endif
  31. #
  32. # define BOOST_PP_ADD_P(d, xy) BOOST_PP_TUPLE_ELEM(2, 1, xy)
  33. #
  34. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
  35. # define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I xy
  36. # else
  37. # define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I(BOOST_PP_TUPLE_ELEM(2, 0, xy), BOOST_PP_TUPLE_ELEM(2, 1, xy))
  38. # endif
  39. #
  40. # define BOOST_PP_ADD_O_I(x, y) (BOOST_PP_INC(x), BOOST_PP_DEC(y))
  41. #
  42. # /* BOOST_PP_ADD_D */
  43. #
  44. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  45. # define BOOST_PP_ADD_D(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  46. # else
  47. # define BOOST_PP_ADD_D(d, x, y) BOOST_PP_ADD_D_I(d, x, y)
  48. # define BOOST_PP_ADD_D_I(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
  49. # endif
  50. #
  51. # endif