williamr@2: # /* **************************************************************************
williamr@2: #  *                                                                          *
williamr@2: #  *     (C) Copyright Paul Mensonides 2002.
williamr@2: #  *     Distributed under the Boost Software License, Version 1.0. (See
williamr@2: #  *     accompanying file LICENSE_1_0.txt or copy at
williamr@2: #  *     http://www.boost.org/LICENSE_1_0.txt)
williamr@2: #  *                                                                          *
williamr@2: #  ************************************************************************** */
williamr@2: #
williamr@2: # /* See http://www.boost.org for most recent version. */
williamr@2: #
williamr@2: # ifndef BOOST_PREPROCESSOR_CONTROL_EXPR_IIF_HPP
williamr@2: # define BOOST_PREPROCESSOR_CONTROL_EXPR_IIF_HPP
williamr@2: #
williamr@2: # include <boost/preprocessor/config/config.hpp>
williamr@2: #
williamr@2: # /* BOOST_PP_EXPR_IIF */
williamr@2: #
williamr@2: # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
williamr@2: #    define BOOST_PP_EXPR_IIF(bit, expr) BOOST_PP_EXPR_IIF_I(bit, expr)
williamr@2: # else
williamr@2: #    define BOOST_PP_EXPR_IIF(bit, expr) BOOST_PP_EXPR_IIF_OO((bit, expr))
williamr@2: #    define BOOST_PP_EXPR_IIF_OO(par) BOOST_PP_EXPR_IIF_I ## par
williamr@2: # endif
williamr@2: #
williamr@2: # define BOOST_PP_EXPR_IIF_I(bit, expr) BOOST_PP_EXPR_IIF_ ## bit(expr)
williamr@2: #
williamr@2: # define BOOST_PP_EXPR_IIF_0(expr)
williamr@2: # define BOOST_PP_EXPR_IIF_1(expr) expr
williamr@2: #
williamr@2: # endif