compiler/boost/preprocessor/facilities/identity.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 # /* Revised by Edward Diener (2015) */
  12 #
  13 # /* See http://www.boost.org for most recent version. */
  14 #
  15 # ifndef BOOST_PREPROCESSOR_FACILITIES_IDENTITY_HPP
  16 # define BOOST_PREPROCESSOR_FACILITIES_IDENTITY_HPP
  17 #
  18 # include <boost/preprocessor/facilities/empty.hpp>
  19 # include <boost/preprocessor/tuple/eat.hpp>
  20 #
  21 # /* BOOST_PP_IDENTITY */
  22 #
  23 # define BOOST_PP_IDENTITY(item) item BOOST_PP_EMPTY
  24 #
  25 # define BOOST_PP_IDENTITY_N(item,n) item BOOST_PP_TUPLE_EAT_N(n)
  26 #
  27 # endif