1 # /* Copyright (C) 2001 2 # * Housemarque Oy 3 # * http://www.housemarque.com 4 # * 5 # * Distributed under the Boost Software License, Version 1.0. (See 6 # * accompanying file LICENSE_1_0.txt or copy at 7 # * http://www.boost.org/LICENSE_1_0.txt) 8 # */ 9 # 10 # /* Revised by Paul Mensonides (2002) */ 11 # 12 # /* See http://www.boost.org for most recent version. */ 13 # 14 # ifndef BOOST_PREPROCESSOR_ARITHMETIC_ADD_HPP 15 # define BOOST_PREPROCESSOR_ARITHMETIC_ADD_HPP 16 # 17 # include <boost/preprocessor/arithmetic/dec.hpp> 18 # include <boost/preprocessor/arithmetic/inc.hpp> 19 # include <boost/preprocessor/config/config.hpp> 20 # include <boost/preprocessor/control/while.hpp> 21 # include <boost/preprocessor/tuple/elem.hpp> 22 # 23 # /* BOOST_PP_ADD */ 24 # 25 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 26 # define BOOST_PP_ADD(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y))) 27 # else 28 # define BOOST_PP_ADD(x, y) BOOST_PP_ADD_I(x, y) 29 # define BOOST_PP_ADD_I(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y))) 30 # endif 31 # 32 # define BOOST_PP_ADD_P(d, xy) BOOST_PP_TUPLE_ELEM(2, 1, xy) 33 # 34 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC() 35 # define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I xy 36 # else 37 # define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I(BOOST_PP_TUPLE_ELEM(2, 0, xy), BOOST_PP_TUPLE_ELEM(2, 1, xy)) 38 # endif 39 # 40 # define BOOST_PP_ADD_O_I(x, y) (BOOST_PP_INC(x), BOOST_PP_DEC(y)) 41 # 42 # /* BOOST_PP_ADD_D */ 43 # 44 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 45 # define BOOST_PP_ADD_D(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y))) 46 # else 47 # define BOOST_PP_ADD_D(d, x, y) BOOST_PP_ADD_D_I(d, x, y) 48 # define BOOST_PP_ADD_D_I(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y))) 49 # endif 50 # 51 # endif 52
