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Jeff Thompsona28eed82013-08-22 16:21:10 -07001# /* **************************************************************************
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#
Jeff Thompson3d613fd2013-10-15 15:39:04 -070012# ifndef NDNBOOST_PREPROCESSOR_SEQ_FIRST_N_HPP
13# define NDNBOOST_PREPROCESSOR_SEQ_FIRST_N_HPP
Jeff Thompsona28eed82013-08-22 16:21:10 -070014#
15# include <ndnboost/preprocessor/config/config.hpp>
16# include <ndnboost/preprocessor/control/if.hpp>
17# include <ndnboost/preprocessor/seq/detail/split.hpp>
18# include <ndnboost/preprocessor/tuple/eat.hpp>
19# include <ndnboost/preprocessor/tuple/elem.hpp>
20#
Jeff Thompson3d613fd2013-10-15 15:39:04 -070021# /* NDNBOOST_PP_SEQ_FIRST_N */
Jeff Thompsona28eed82013-08-22 16:21:10 -070022#
Jeff Thompson3d613fd2013-10-15 15:39:04 -070023# if ~NDNBOOST_PP_CONFIG_FLAGS() & NDNBOOST_PP_CONFIG_EDG()
24# define NDNBOOST_PP_SEQ_FIRST_N(n, seq) NDNBOOST_PP_IF(n, NDNBOOST_PP_TUPLE_ELEM, NDNBOOST_PP_TUPLE_EAT_3)(2, 0, NDNBOOST_PP_SEQ_SPLIT(n, seq (nil)))
Jeff Thompsona28eed82013-08-22 16:21:10 -070025# else
Jeff Thompson3d613fd2013-10-15 15:39:04 -070026# define NDNBOOST_PP_SEQ_FIRST_N(n, seq) NDNBOOST_PP_SEQ_FIRST_N_I(n, seq)
27# define NDNBOOST_PP_SEQ_FIRST_N_I(n, seq) NDNBOOST_PP_IF(n, NDNBOOST_PP_TUPLE_ELEM, NDNBOOST_PP_TUPLE_EAT_3)(2, 0, NDNBOOST_PP_SEQ_SPLIT(n, seq (nil)))
Jeff Thompsona28eed82013-08-22 16:21:10 -070028# endif
29#
30# endif