pop_back.hpp 1.7 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_ARRAY_POP_BACK_HPP
  13. # define BOOST_PREPROCESSOR_ARRAY_POP_BACK_HPP
  14. #
  15. # include <boost/preprocessor/arithmetic/dec.hpp>
  16. # include <boost/preprocessor/array/elem.hpp>
  17. # include <boost/preprocessor/array/size.hpp>
  18. # include <boost/preprocessor/repetition/enum.hpp>
  19. # include <boost/preprocessor/repetition/deduce_z.hpp>
  20. #
  21. # /* BOOST_PP_ARRAY_POP_BACK */
  22. #
  23. # define BOOST_PP_ARRAY_POP_BACK(array) BOOST_PP_ARRAY_POP_BACK_Z(BOOST_PP_DEDUCE_Z(), array)
  24. #
  25. # /* BOOST_PP_ARRAY_POP_BACK_Z */
  26. #
  27. # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  28. # define BOOST_PP_ARRAY_POP_BACK_Z(z, array) BOOST_PP_ARRAY_POP_BACK_I(z, BOOST_PP_ARRAY_SIZE(array), array)
  29. # else
  30. # define BOOST_PP_ARRAY_POP_BACK_Z(z, array) BOOST_PP_ARRAY_POP_BACK_Z_D(z, array)
  31. # define BOOST_PP_ARRAY_POP_BACK_Z_D(z, array) BOOST_PP_ARRAY_POP_BACK_I(z, BOOST_PP_ARRAY_SIZE(array), array)
  32. # endif
  33. #
  34. # define BOOST_PP_ARRAY_POP_BACK_I(z, size, array) (BOOST_PP_DEC(size), (BOOST_PP_ENUM_ ## z(BOOST_PP_DEC(size), BOOST_PP_ARRAY_POP_BACK_M, array)))
  35. # define BOOST_PP_ARRAY_POP_BACK_M(z, n, data) BOOST_PP_ARRAY_ELEM(n, data)
  36. #
  37. # endif