1# /* Copyright (C) 2001
2# * Housemarque Oy
3# * http://www.housemarque.com
4# *
5# * Distributed under the Boost Software License, Version 1.0. (See
6# * accompanying file LICENSE_1_0.txt or copy at
7# * http://www.boost.org/LICENSE_1_0.txt)
8# */
9#
10# /* Revised by Paul Mensonides (2002) */
11#
12# /* See http://www.boost.org for most recent version. */
13#
14# ifndef BOOST_PREPROCESSOR_PUNCTUATION_COMMA_IF_HPP
15# define BOOST_PREPROCESSOR_PUNCTUATION_COMMA_IF_HPP
16#
17# include <boost/preprocessor/config/config.hpp>
18# include <boost/preprocessor/control/if.hpp>
19# include <boost/preprocessor/facilities/empty.hpp>
20# include <boost/preprocessor/punctuation/comma.hpp>
21#
22# /* BOOST_PP_COMMA_IF */
23#
24# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
25# define BOOST_PP_COMMA_IF(cond) BOOST_PP_IF(cond, BOOST_PP_COMMA, BOOST_PP_EMPTY)()
26# else
27# define BOOST_PP_COMMA_IF(cond) BOOST_PP_COMMA_IF_I(cond)
28# define BOOST_PP_COMMA_IF_I(cond) BOOST_PP_IF(cond, BOOST_PP_COMMA, BOOST_PP_EMPTY)()
29# endif
30#
31# endif
32

source code of boost/boost/preprocessor/punctuation/comma_if.hpp