# /* ************************************************************************** | |
# * * | |
# * (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 |