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_MUL_HPP 15 # define BOOST_PREPROCESSOR_ARITHMETIC_MUL_HPP 16 # 17 # include <boost/preprocessor/arithmetic/add.hpp> 18 # include <boost/preprocessor/arithmetic/dec.hpp> 19 # include <boost/preprocessor/config/config.hpp> 20 # include <boost/preprocessor/control/while.hpp> 21 # include <boost/preprocessor/tuple/elem.hpp> 22 # include <boost/preprocessor/tuple/rem.hpp> 23 # 24 # /* BOOST_PP_MUL */ 25 # 26 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 27 # define BOOST_PP_MUL(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y))) 28 # else 29 # define BOOST_PP_MUL(x, y) BOOST_PP_MUL_I(x, y) 30 # define BOOST_PP_MUL_I(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y))) 31 # endif 32 # 33 # define BOOST_PP_MUL_P(d, rxy) BOOST_PP_TUPLE_ELEM(3, 2, rxy) 34 # 35 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT() 36 # define BOOST_PP_MUL_O(d, rxy) BOOST_PP_MUL_O_IM(d, BOOST_PP_TUPLE_REM_3 rxy) 37 # define BOOST_PP_MUL_O_IM(d, im) BOOST_PP_MUL_O_I(d, im) 38 # else 39 # define BOOST_PP_MUL_O(d, rxy) BOOST_PP_MUL_O_I(d, BOOST_PP_TUPLE_ELEM(3, 0, rxy), BOOST_PP_TUPLE_ELEM(3, 1, rxy), BOOST_PP_TUPLE_ELEM(3, 2, rxy)) 40 # endif 41 # 42 # define BOOST_PP_MUL_O_I(d, r, x, y) (BOOST_PP_ADD_D(d, r, x), x, BOOST_PP_DEC(y)) 43 # 44 # /* BOOST_PP_MUL_D */ 45 # 46 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 47 # define BOOST_PP_MUL_D(d, x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y))) 48 # else 49 # define BOOST_PP_MUL_D(d, x, y) BOOST_PP_MUL_D_I(d, x, y) 50 # define BOOST_PP_MUL_D_I(d, x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y))) 51 # endif 52 # 53 # endif 54