less.hpp 1.9 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_COMPARISON_LESS_HPP
  15. # define BOOST_PREPROCESSOR_COMPARISON_LESS_HPP
  16. #
  17. # include <boost/preprocessor/comparison/less_equal.hpp>
  18. # include <boost/preprocessor/comparison/not_equal.hpp>
  19. # include <boost/preprocessor/config/config.hpp>
  20. # include <boost/preprocessor/control/iif.hpp>
  21. # include <boost/preprocessor/logical/bitand.hpp>
  22. # include <boost/preprocessor/tuple/eat.hpp>
  23. #
  24. # /* BOOST_PP_LESS */
  25. #
  26. # if BOOST_PP_CONFIG_FLAGS() & (BOOST_PP_CONFIG_MWCC() | BOOST_PP_CONFIG_DMC())
  27. # define BOOST_PP_LESS(x, y) BOOST_PP_BITAND(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL(x, y))
  28. # elif ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  29. # define BOOST_PP_LESS(x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL, 0 BOOST_PP_TUPLE_EAT_2)(x, y)
  30. # else
  31. # define BOOST_PP_LESS(x, y) BOOST_PP_LESS_I(x, y)
  32. # define BOOST_PP_LESS_I(x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL, 0 BOOST_PP_TUPLE_EAT_2)(x, y)
  33. # endif
  34. #
  35. # /* BOOST_PP_LESS_D */
  36. #
  37. # if BOOST_PP_CONFIG_FLAGS() & (BOOST_PP_CONFIG_MWCC() | BOOST_PP_CONFIG_DMC())
  38. # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_BITAND(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D(d, x, y))
  39. # elif ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  40. # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D, 0 BOOST_PP_TUPLE_EAT_3)(d, x, y)
  41. # else
  42. # define BOOST_PP_LESS_D(d, x, y) BOOST_PP_LESS_D_I(d, x, y)
  43. # define BOOST_PP_LESS_D_I(d, x, y) BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(x, y), BOOST_PP_LESS_EQUAL_D, 0 BOOST_PP_TUPLE_EAT_3)(d, x, y)
  44. # endif
  45. #
  46. # endif