compiler/boost/preprocessor/cat.hpp

   1 # /* Copyright (C) 2001
   2 #  * Housemarque Oy
   3 #  * http://www.housemarque.com
   4 #  *
   5 #  * Distributed under the Boost Software License, Version 1.0. (See
   6 #  * accompanying file LICENSE_1_0.txt or copy at
   7 #  * http://www.boost.org/LICENSE_1_0.txt)
   8 #  */
   9 #
  10 # /* Revised by Paul Mensonides (2002) */
  11 #
  12 # /* See http://www.boost.org for most recent version. */
  13 #
  14 # ifndef BOOST_PREPROCESSOR_CAT_HPP
  15 # define BOOST_PREPROCESSOR_CAT_HPP
  16 #
  17 # include <boost/preprocessor/config/config.hpp>
  18 #
  19 # /* BOOST_PP_CAT */
  20 #
  21 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
  22 #    define BOOST_PP_CAT(a, b) BOOST_PP_CAT_I(a, b)
  23 # else
  24 #    define BOOST_PP_CAT(a, b) BOOST_PP_CAT_OO((a, b))
  25 #    define BOOST_PP_CAT_OO(par) BOOST_PP_CAT_I ## par
  26 # endif
  27 #
  28 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()
  29 #    define BOOST_PP_CAT_I(a, b) a ## b
  30 # else
  31 #    define BOOST_PP_CAT_I(a, b) BOOST_PP_CAT_II(~, a ## b)
  32 #    define BOOST_PP_CAT_II(p, res) res
  33 # endif
  34 #
  35 # endif