boost/preprocessor/control/iif.hpp
# /* ************************************************************************** # * * # * (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_IIF_HPP # define BOOST_PREPROCESSOR_CONTROL_IIF_HPP # # include <boost/preprocessor/config/config.hpp> # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC() # define BOOST_PP_IIF(bit, t, f) BOOST_PP_IIF_I(bit, t, f) # else # define BOOST_PP_IIF(bit, t, f) BOOST_PP_IIF_OO((bit, t, f)) # define BOOST_PP_IIF_OO(par) BOOST_PP_IIF_I ## par # endif # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC() # define BOOST_PP_IIF_I(bit, t, f) BOOST_PP_IIF_ ## bit(t, f) # else # define BOOST_PP_IIF_I(bit, t, f) BOOST_PP_IIF_II(BOOST_PP_IIF_ ## bit(t, f)) # define BOOST_PP_IIF_II(id) id # endif # # define BOOST_PP_IIF_0(t, f) f # define BOOST_PP_IIF_1(t, f) t # # endif