boost/preprocessor/tuple/push_front.hpp

   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