# /* **************************************************************************

 #  *                                                                          *

 #  *     (C) Copyright Paul Mensonides 2002.

 #  *     Distributed under the Boost Software License, Version 1.0. (See

 #  *     accompanying file LICENSE_1_0.txt or copy at

 #  *     http://www.boost.org/LICENSE_1_0.txt)

 #  *                                                                          *

 #  ************************************************************************** */

 #

 # /* See http://www.boost.org for most recent version. */

 #

 # ifndef BOOST_PREPROCESSOR_CONTROL_EXPR_IIF_HPP

 # define BOOST_PREPROCESSOR_CONTROL_EXPR_IIF_HPP

 #

 # include <boost/preprocessor/config/config.hpp>

 #

 # /* BOOST_PP_EXPR_IIF */

 #

 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()

 #    define BOOST_PP_EXPR_IIF(bit, expr) BOOST_PP_EXPR_IIF_I(bit, expr)

 # else

 #    define BOOST_PP_EXPR_IIF(bit, expr) BOOST_PP_EXPR_IIF_OO((bit, expr))

 #    define BOOST_PP_EXPR_IIF_OO(par) BOOST_PP_EXPR_IIF_I ## par

 # endif

 #

 # define BOOST_PP_EXPR_IIF_I(bit, expr) BOOST_PP_EXPR_IIF_ ## bit(expr)

 #

 # define BOOST_PP_EXPR_IIF_0(expr)

 # define BOOST_PP_EXPR_IIF_1(expr) expr

 #

 # endif