comma_if.hpp 1012 B

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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_PUNCTUATION_COMMA_IF_HPP
  15. # define BOOST_PREPROCESSOR_PUNCTUATION_COMMA_IF_HPP
  16. #
  17. # include <boost/preprocessor/config/config.hpp>
  18. # include <boost/preprocessor/control/if.hpp>
  19. # include <boost/preprocessor/facilities/empty.hpp>
  20. # include <boost/preprocessor/punctuation/comma.hpp>
  21. #
  22. # /* BOOST_PP_COMMA_IF */
  23. #
  24. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  25. # define BOOST_PP_COMMA_IF(cond) BOOST_PP_IF(cond, BOOST_PP_COMMA, BOOST_PP_EMPTY)()
  26. # else
  27. # define BOOST_PP_COMMA_IF(cond) BOOST_PP_COMMA_IF_I(cond)
  28. # define BOOST_PP_COMMA_IF_I(cond) BOOST_PP_IF(cond, BOOST_PP_COMMA, BOOST_PP_EMPTY)()
  29. # endif
  30. #
  31. # endif