expr_iif.hpp

00001 # /* **************************************************************************
00002 #  *                                                                          *
00003 #  *     (C) Copyright Paul Mensonides 2002.
00004 #  *     Distributed under the Boost Software License, Version 1.0. (See
00005 #  *     accompanying file LICENSE_1_0.txt or copy at
00006 #  *     http://www.boost.org/LICENSE_1_0.txt)
00007 #  *                                                                          *
00008 #  ************************************************************************** */
00009 #
00010 # /* See http://www.boost.org for most recent version. */
00011 #
00012 # ifndef MSGPACK_PREPROCESSOR_CONTROL_EXPR_IIF_HPP
00013 # define MSGPACK_PREPROCESSOR_CONTROL_EXPR_IIF_HPP
00014 #
00015 # include <msgpack/preprocessor/config/config.hpp>
00016 #
00017 # /* MSGPACK_PP_EXPR_IIF */
00018 #
00019 # if ~MSGPACK_PP_CONFIG_FLAGS() & MSGPACK_PP_CONFIG_MWCC()
00020 #    define MSGPACK_PP_EXPR_IIF(bit, expr) MSGPACK_PP_EXPR_IIF_I(bit, expr)
00021 # else
00022 #    define MSGPACK_PP_EXPR_IIF(bit, expr) MSGPACK_PP_EXPR_IIF_OO((bit, expr))
00023 #    define MSGPACK_PP_EXPR_IIF_OO(par) MSGPACK_PP_EXPR_IIF_I ## par
00024 # endif
00025 #
00026 # define MSGPACK_PP_EXPR_IIF_I(bit, expr) MSGPACK_PP_EXPR_IIF_ ## bit(expr)
00027 #
00028 # define MSGPACK_PP_EXPR_IIF_0(expr)
00029 # define MSGPACK_PP_EXPR_IIF_1(expr) expr
00030 #
00031 # endif