remove_parens.hpp 1.3 KB

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  1. # /* **************************************************************************
  2. # * *
  3. # * (C) Copyright Edward Diener 2014.
  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_REMOVE_PARENS_HPP
  13. #define BOOST_PREPROCESSOR_REMOVE_PARENS_HPP
  14. #include <boost/preprocessor/config/config.hpp>
  15. #if BOOST_PP_VARIADICS
  16. #include <boost/preprocessor/control/iif.hpp>
  17. #include <boost/preprocessor/facilities/identity.hpp>
  18. #include <boost/preprocessor/punctuation/is_begin_parens.hpp>
  19. #include <boost/preprocessor/tuple/enum.hpp>
  20. #define BOOST_PP_REMOVE_PARENS(param) \
  21. BOOST_PP_IIF \
  22. ( \
  23. BOOST_PP_IS_BEGIN_PARENS(param), \
  24. BOOST_PP_REMOVE_PARENS_DO, \
  25. BOOST_PP_IDENTITY \
  26. ) \
  27. (param)() \
  28. /**/
  29. #define BOOST_PP_REMOVE_PARENS_DO(param) \
  30. BOOST_PP_IDENTITY(BOOST_PP_TUPLE_ENUM(param)) \
  31. /**/
  32. #endif /* BOOST_PP_VARIADICS */
  33. #endif /* BOOST_PREPROCESSOR_REMOVE_PARENS_HPP */