iif.hpp 1.3 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_CONTROL_IIF_HPP
  13. # define BOOST_PREPROCESSOR_CONTROL_IIF_HPP
  14. #
  15. # include <boost/preprocessor/config/config.hpp>
  16. #
  17. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
  18. # define BOOST_PP_IIF(bit, t, f) BOOST_PP_IIF_I(bit, t, f)
  19. # else
  20. # define BOOST_PP_IIF(bit, t, f) BOOST_PP_IIF_OO((bit, t, f))
  21. # define BOOST_PP_IIF_OO(par) BOOST_PP_IIF_I ## par
  22. # endif
  23. #
  24. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
  25. # define BOOST_PP_IIF_I(bit, t, f) BOOST_PP_IIF_ ## bit(t, f)
  26. # else
  27. # define BOOST_PP_IIF_I(bit, t, f) BOOST_PP_IIF_II(BOOST_PP_IIF_ ## bit(t, f))
  28. # define BOOST_PP_IIF_II(id) id
  29. # endif
  30. #
  31. # define BOOST_PP_IIF_0(t, f) f
  32. # define BOOST_PP_IIF_1(t, f) t
  33. #
  34. # endif