compiler/boost/preprocessor/punctuation/remove_parens.hpp

   1 # /* **************************************************************************
   2 #  *                                                                          *
   3 #  *     (C) Copyright Edward Diener 2014.
   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_REMOVE_PARENS_HPP
  13 #define BOOST_PREPROCESSOR_REMOVE_PARENS_HPP
  14
  15 #include <boost/preprocessor/config/config.hpp>
  16
  17 #if BOOST_PP_VARIADICS
  18
  19 #include <boost/preprocessor/control/iif.hpp>
  20 #include <boost/preprocessor/facilities/identity.hpp>
  21 #include <boost/preprocessor/punctuation/is_begin_parens.hpp>
  22 #include <boost/preprocessor/tuple/enum.hpp>
  23
  24 #define BOOST_PP_REMOVE_PARENS(param) \
  25     BOOST_PP_IIF \
  26       ( \
  27       BOOST_PP_IS_BEGIN_PARENS(param), \
  28       BOOST_PP_REMOVE_PARENS_DO, \
  29       BOOST_PP_IDENTITY \
  30       ) \
  31     (param)() \
  32 /**/
  33
  34 #define BOOST_PP_REMOVE_PARENS_DO(param) \
  35   BOOST_PP_IDENTITY(BOOST_PP_TUPLE_ENUM(param)) \
  36 /**/
  37
  38 #endif /* BOOST_PP_VARIADICS */
  39 #endif /* BOOST_PREPROCESSOR_REMOVE_PARENS_HPP */