123456789101112131415161718192021222324252627282930 |
- # /* **************************************************************************
- # * *
- # * (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_SEQ_FIRST_N_HPP
- # define BOOST_PREPROCESSOR_SEQ_FIRST_N_HPP
- #
- # include <boost/preprocessor/config/config.hpp>
- # include <boost/preprocessor/control/if.hpp>
- # include <boost/preprocessor/seq/detail/split.hpp>
- # include <boost/preprocessor/tuple/eat.hpp>
- # include <boost/preprocessor/tuple/elem.hpp>
- #
- # /* BOOST_PP_SEQ_FIRST_N */
- #
- # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
- # define BOOST_PP_SEQ_FIRST_N(n, seq) BOOST_PP_IF(n, BOOST_PP_TUPLE_ELEM, BOOST_PP_TUPLE_EAT_3)(2, 0, BOOST_PP_SEQ_SPLIT(n, seq (nil)))
- # else
- # define BOOST_PP_SEQ_FIRST_N(n, seq) BOOST_PP_SEQ_FIRST_N_I(n, seq)
- # define BOOST_PP_SEQ_FIRST_N_I(n, seq) BOOST_PP_IF(n, BOOST_PP_TUPLE_ELEM, BOOST_PP_TUPLE_EAT_3)(2, 0, BOOST_PP_SEQ_SPLIT(n, seq (nil)))
- # endif
- #
- # endif
|