push_front.hpp 1.2 KB

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  1. # /* **************************************************************************
  2. # * *
  3. # * (C) Copyright Edward Diener 2013.
  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_TUPLE_PUSH_FRONT_HPP
  13. # define BOOST_PREPROCESSOR_TUPLE_PUSH_FRONT_HPP
  14. #
  15. # include <boost/preprocessor/config/config.hpp>
  16. #
  17. # if BOOST_PP_VARIADICS
  18. #
  19. # include <boost/preprocessor/array/push_front.hpp>
  20. # include <boost/preprocessor/array/to_tuple.hpp>
  21. # include <boost/preprocessor/tuple/to_array.hpp>
  22. #
  23. #
  24. # /* BOOST_PP_TUPLE_PUSH_FRONT */
  25. #
  26. # define BOOST_PP_TUPLE_PUSH_FRONT(tuple, elem) \
  27. BOOST_PP_ARRAY_TO_TUPLE(BOOST_PP_ARRAY_PUSH_FRONT(BOOST_PP_TUPLE_TO_ARRAY(tuple), elem)) \
  28. /**/
  29. #
  30. # endif // BOOST_PP_VARIADICS
  31. #
  32. # endif // BOOST_PREPROCESSOR_TUPLE_PUSH_FRONT_HPP