compiler/boost/preprocessor/array/insert.hpp

   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_INSERT_HPP
  13 # define BOOST_PREPROCESSOR_ARRAY_INSERT_HPP
  14 #
  15 # include <boost/preprocessor/arithmetic/inc.hpp>
  16 # include <boost/preprocessor/array/elem.hpp>
  17 # include <boost/preprocessor/array/push_back.hpp>
  18 # include <boost/preprocessor/array/size.hpp>
  19 # include <boost/preprocessor/comparison/not_equal.hpp>
  20 # include <boost/preprocessor/control/deduce_d.hpp>
  21 # include <boost/preprocessor/control/iif.hpp>
  22 # include <boost/preprocessor/control/while.hpp>
  23 # include <boost/preprocessor/tuple/elem.hpp>
  24 #
  25 # /* BOOST_PP_ARRAY_INSERT */
  26 #
  27 # define BOOST_PP_ARRAY_INSERT(array, i, elem) BOOST_PP_ARRAY_INSERT_I(BOOST_PP_DEDUCE_D(), array, i, elem)
  28 # define BOOST_PP_ARRAY_INSERT_I(d, array, i, elem) BOOST_PP_ARRAY_INSERT_D(d, array, i, elem)
  29 #
  30 # /* BOOST_PP_ARRAY_INSERT_D */
  31 #
  32 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  33 #    define BOOST_PP_ARRAY_INSERT_D(d, array, i, elem) BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_INSERT_P, BOOST_PP_ARRAY_INSERT_O, (0, i, elem, (0, ()), array)))
  34 # else
  35 #    define BOOST_PP_ARRAY_INSERT_D(d, array, i, elem) BOOST_PP_ARRAY_INSERT_D_I(d, array, i, elem)
  36 #    define BOOST_PP_ARRAY_INSERT_D_I(d, array, i, elem) BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_INSERT_P, BOOST_PP_ARRAY_INSERT_O, (0, i, elem, (0, ()), array)))
  37 # endif
  38 #
  39 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  40 #    define BOOST_PP_ARRAY_INSERT_P(d, state) BOOST_PP_ARRAY_INSERT_P_I state
  41 # else
  42 #    define BOOST_PP_ARRAY_INSERT_P(d, state) BOOST_PP_ARRAY_INSERT_P_I(nil, nil, nil, BOOST_PP_TUPLE_ELEM(5, 3, state), BOOST_PP_TUPLE_ELEM(5, 4, state))
  43 # endif
  44 #
  45 # define BOOST_PP_ARRAY_INSERT_P_I(_i, _ii, _iii, res, arr) BOOST_PP_NOT_EQUAL(BOOST_PP_ARRAY_SIZE(res), BOOST_PP_INC(BOOST_PP_ARRAY_SIZE(arr)))
  46 #
  47 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
  48 #    define BOOST_PP_ARRAY_INSERT_O(d, state) BOOST_PP_ARRAY_INSERT_O_I state
  49 # else
  50 #    define BOOST_PP_ARRAY_INSERT_O(d, state) BOOST_PP_ARRAY_INSERT_O_I(BOOST_PP_TUPLE_ELEM(5, 0, state), BOOST_PP_TUPLE_ELEM(5, 1, state), BOOST_PP_TUPLE_ELEM(5, 2, state), BOOST_PP_TUPLE_ELEM(5, 3, state), BOOST_PP_TUPLE_ELEM(5, 4, state))
  51 # endif
  52 #
  53 # define BOOST_PP_ARRAY_INSERT_O_I(n, i, elem, res, arr) (BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(BOOST_PP_ARRAY_SIZE(res), i), BOOST_PP_INC(n), n), i, elem, BOOST_PP_ARRAY_PUSH_BACK(res, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(BOOST_PP_ARRAY_SIZE(res), i), BOOST_PP_ARRAY_ELEM(n, arr), elem)), arr)
  54 #
  55 # endif