boost/preprocessor/list/rest_n.hpp
# /* Copyright (C) 2001 # * Housemarque Oy # * http://www.housemarque.com # * # * 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) # */ # # /* Revised by Paul Mensonides (2002) */ # # /* See http://www.boost.org for most recent version. */ # # ifndef BOOST_PREPROCESSOR_LIST_REST_N_HPP # define BOOST_PREPROCESSOR_LIST_REST_N_HPP # # include <boost/preprocessor/arithmetic/dec.hpp> # include <boost/preprocessor/config/config.hpp> # include <boost/preprocessor/control/while.hpp> # include <boost/preprocessor/list/adt.hpp> # include <boost/preprocessor/tuple/elem.hpp> # # /* BOOST_PP_LIST_REST_N */ # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_LIST_REST_N(count, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_REST_N_P, BOOST_PP_LIST_REST_N_O, (list, count))) # else # define BOOST_PP_LIST_REST_N(count, list) BOOST_PP_LIST_REST_N_I(count, list) # define BOOST_PP_LIST_REST_N_I(count, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_LIST_REST_N_P, BOOST_PP_LIST_REST_N_O, (list, count))) # endif # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_LIST_REST_N_P(d, lc) BOOST_PP_TUPLE_ELEM(2, 1, lc) # else # define BOOST_PP_LIST_REST_N_P(d, lc) BOOST_PP_LIST_REST_N_P_I lc # define BOOST_PP_LIST_REST_N_P_I(list, count) count # endif # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_LIST_REST_N_O(d, lc) (BOOST_PP_LIST_REST(BOOST_PP_TUPLE_ELEM(2, 0, lc)), BOOST_PP_DEC(BOOST_PP_TUPLE_ELEM(2, 1, lc))) # else # define BOOST_PP_LIST_REST_N_O(d, lc) BOOST_PP_LIST_REST_N_O_I lc # define BOOST_PP_LIST_REST_N_O_I(list, count) (BOOST_PP_LIST_REST(list), BOOST_PP_DEC(count)) # endif # # /* BOOST_PP_LIST_REST_N_D */ # # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() # define BOOST_PP_LIST_REST_N_D(d, count, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_REST_N_P, BOOST_PP_LIST_REST_N_O, (list, count))) # else # define BOOST_PP_LIST_REST_N_D(d, count, list) BOOST_PP_LIST_REST_N_D_I(d, count, list) # define BOOST_PP_LIST_REST_N_D_I(d, count, list) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_LIST_REST_N_P, BOOST_PP_LIST_REST_N_O, (list, count))) # endif # # endif