compiler/boost/preprocessor/seq/seq.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_SEQ_SEQ_HPP
  13 # define BOOST_PREPROCESSOR_SEQ_SEQ_HPP
  14 #
  15 # include <boost/preprocessor/config/config.hpp>
  16 # include <boost/preprocessor/seq/elem.hpp>
  17 #
  18 # /* BOOST_PP_SEQ_HEAD */
  19 #
  20 # define BOOST_PP_SEQ_HEAD(seq) BOOST_PP_SEQ_ELEM(0, seq)
  21 #
  22 # /* BOOST_PP_SEQ_TAIL */
  23 #
  24 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
  25 #    define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_1((seq))
  26 #    define BOOST_PP_SEQ_TAIL_1(par) BOOST_PP_SEQ_TAIL_2 ## par
  27 #    define BOOST_PP_SEQ_TAIL_2(seq) BOOST_PP_SEQ_TAIL_I ## seq
  28 # elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
  29 #    define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_ID(BOOST_PP_SEQ_TAIL_I seq)
  30 #    define BOOST_PP_SEQ_TAIL_ID(id) id
  31 # elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
  32 #    define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_D(seq)
  33 #    define BOOST_PP_SEQ_TAIL_D(seq) BOOST_PP_SEQ_TAIL_I seq
  34 # else
  35 #    define BOOST_PP_SEQ_TAIL(seq) BOOST_PP_SEQ_TAIL_I seq
  36 # endif
  37 #
  38 # define BOOST_PP_SEQ_TAIL_I(x)
  39 #
  40 # /* BOOST_PP_SEQ_NIL */
  41 #
  42 # define BOOST_PP_SEQ_NIL(x) (x)
  43 #
  44 # endif