1# /* **************************************************************************
2# * *
3# * (C) Copyright Paul Mensonides 2002.
4# * Distributed under the Boost Software License, Version 1.0. (See
5# * accompanying file LICENSE_1_0.txt or copy at
6# * http://www.boost.org/LICENSE_1_0.txt)
7# * *
8# ************************************************************************** */
9#
10# /* See http://www.boost.org for most recent version. */
11#
12# ifndef BOOST_PREPROCESSOR_FACILITIES_APPLY_HPP
13# define BOOST_PREPROCESSOR_FACILITIES_APPLY_HPP
14#
15# include <boost/preprocessor/config/config.hpp>
16# include <boost/preprocessor/control/expr_iif.hpp>
17# include <boost/preprocessor/detail/is_unary.hpp>
18# include <boost/preprocessor/tuple/rem.hpp>
19#
20# /* BOOST_PP_APPLY */
21#
22# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
23# define BOOST_PP_APPLY(x) BOOST_PP_APPLY_I(x)
24# define BOOST_PP_APPLY_I(x) BOOST_PP_EXPR_IIF(BOOST_PP_IS_UNARY(x), BOOST_PP_TUPLE_REM_1 x)
25# elif BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_BCC()
26# define BOOST_PP_APPLY(x) BOOST_PP_APPLY_I(x)
27# define BOOST_PP_APPLY_I(x) BOOST_PP_APPLY_ ## x
28# define BOOST_PP_APPLY_(x) x
29# define BOOST_PP_APPLY_BOOST_PP_NIL
30# else
31# define BOOST_PP_APPLY(x) BOOST_PP_EXPR_IIF(BOOST_PP_IS_UNARY(x), BOOST_PP_TUPLE_REM_1 x)
32# endif
33#
34# endif
35

source code of boost/boost/preprocessor/facilities/apply.hpp