boost/preprocessor/seq/rest_n.hpp
# /* ************************************************************************** # * * # * (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_REST_N_HPP # define BOOST_PREPROCESSOR_SEQ_REST_N_HPP # # include <boost/preprocessor/arithmetic/inc.hpp> # include <boost/preprocessor/comparison/not_equal.hpp> # include <boost/preprocessor/config/config.hpp> # include <boost/preprocessor/control/iif.hpp> # include <boost/preprocessor/facilities/identity.hpp> # include <boost/preprocessor/logical/bitand.hpp> # include <boost/preprocessor/seq/detail/is_empty.hpp> # include <boost/preprocessor/seq/detail/split.hpp> # include <boost/preprocessor/tuple/elem.hpp> # # /* BOOST_PP_SEQ_REST_N */ # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_SEQ_REST_N(n, seq) BOOST_PP_SEQ_REST_N_DETAIL_EXEC(n, seq, BOOST_PP_SEQ_DETAIL_EMPTY_SIZE(seq)) # else # define BOOST_PP_SEQ_REST_N(n, seq) BOOST_PP_SEQ_REST_N_I(n, seq) # define BOOST_PP_SEQ_REST_N_I(n, seq) BOOST_PP_SEQ_REST_N_DETAIL_EXEC(n, seq, BOOST_PP_SEQ_DETAIL_EMPTY_SIZE(seq)) # endif # # define BOOST_PP_SEQ_REST_N_DETAIL_EXEC_NO_MATCH(n, seq) # define BOOST_PP_SEQ_REST_N_DETAIL_EXEC_MATCH(n, seq) \ BOOST_PP_TUPLE_ELEM(2, 1, BOOST_PP_SEQ_SPLIT(BOOST_PP_INC(n), BOOST_PP_IDENTITY( (nil) seq )))() \ /**/ # define BOOST_PP_SEQ_REST_N_DETAIL_EXEC(n, seq, size) \ BOOST_PP_IIF \ ( \ BOOST_PP_BITAND \ ( \ BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY_SIZE(size), \ BOOST_PP_NOT_EQUAL(n,size) \ ), \ BOOST_PP_SEQ_REST_N_DETAIL_EXEC_MATCH, \ BOOST_PP_SEQ_REST_N_DETAIL_EXEC_NO_MATCH \ ) \ (n, seq) \ /**/ # # endif