boost/preprocessor/cat.hpp
# /* Copyright (C) 2001 # * Housemarque Oy # * http://www.housemarque.com # * # * 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) # */ # # /* Revised by Paul Mensonides (2002) */ # # /* See http://www.boost.org for most recent version. */ # # ifndef BOOST_PREPROCESSOR_CAT_HPP # define BOOST_PREPROCESSOR_CAT_HPP # # include <boost/preprocessor/config/config.hpp> # # /* BOOST_PP_CAT */ # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC() # define BOOST_PP_CAT(a, b) BOOST_PP_CAT_I(a, b) # else # define BOOST_PP_CAT(a, b) BOOST_PP_CAT_OO((a, b)) # define BOOST_PP_CAT_OO(par) BOOST_PP_CAT_I ## par # endif # # if (~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 1700) # define BOOST_PP_CAT_I(a, b) a ## b # else # define BOOST_PP_CAT_I(a, b) BOOST_PP_CAT_II(~, a ## b) # define BOOST_PP_CAT_II(p, res) res # endif # # endif