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 # /* Revised by Edward Diener (2020) */ 12 # 13 # /* See http://www.boost.org for most recent version. */ 14 # 15 # ifndef BOOST_PREPROCESSOR_ARITHMETIC_MUL_HPP 16 # define BOOST_PREPROCESSOR_ARITHMETIC_MUL_HPP 17 # 18 # include <boost/preprocessor/config/config.hpp> 19 # 20 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT() 21 # 22 # include <boost/preprocessor/arithmetic/add.hpp> 23 # include <boost/preprocessor/arithmetic/dec.hpp> 24 # include <boost/preprocessor/control/while.hpp> 25 # include <boost/preprocessor/tuple/elem.hpp> 26 # include <boost/preprocessor/tuple/rem.hpp> 27 # 28 # /* BOOST_PP_MUL */ 29 # 30 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 31 # 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))) 32 # else 33 # define BOOST_PP_MUL(x, y) BOOST_PP_MUL_I(x, y) 34 # 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))) 35 # endif 36 # 37 # define BOOST_PP_MUL_P(d, rxy) BOOST_PP_TUPLE_ELEM(3, 2, rxy) 38 # 39 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT() 40 # define BOOST_PP_MUL_O(d, rxy) BOOST_PP_MUL_O_IM(d, BOOST_PP_TUPLE_REM_3 rxy) 41 # define BOOST_PP_MUL_O_IM(d, im) BOOST_PP_MUL_O_I(d, im) 42 # else 43 # 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)) 44 # endif 45 # 46 # define BOOST_PP_MUL_O_I(d, r, x, y) (BOOST_PP_ADD_D(d, r, x), x, BOOST_PP_DEC(y)) 47 # 48 # /* BOOST_PP_MUL_D */ 49 # 50 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 51 # 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))) 52 # else 53 # define BOOST_PP_MUL_D(d, x, y) BOOST_PP_MUL_D_I(d, x, y) 54 # 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))) 55 # endif 56 # 57 # else 58 # 59 # include <boost/preprocessor/arithmetic/add.hpp> 60 # include <boost/preprocessor/arithmetic/dec.hpp> 61 # include <boost/preprocessor/control/iif.hpp> 62 # include <boost/preprocessor/control/while.hpp> 63 # include <boost/preprocessor/facilities/identity.hpp> 64 # include <boost/preprocessor/logical/bitand.hpp> 65 # include <boost/preprocessor/logical/bool.hpp> 66 # include <boost/preprocessor/logical/compl.hpp> 67 # include <boost/preprocessor/tuple/elem.hpp> 68 # include <boost/preprocessor/tuple/rem.hpp> 69 # include <boost/preprocessor/arithmetic/detail/is_minimum_number.hpp> 70 # include <boost/preprocessor/arithmetic/detail/is_maximum_number.hpp> 71 # include <boost/preprocessor/arithmetic/detail/is_1_number.hpp> 72 # 73 # /* BOOST_PP_MUL */ 74 # 75 # define BOOST_PP_MUL(x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x),BOOST_PP_IDENTITY_N(x,2),BOOST_PP_MUL_CHECK_1X)(x,y) 76 # 77 # define BOOST_PP_MUL_CHECK_1X(x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_1_NUMBER(x),BOOST_PP_IDENTITY_N(y,2),BOOST_PP_MUL_DO)(x,y) 78 # 79 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 80 # define BOOST_PP_MUL_DO(x, y) BOOST_PP_TUPLE_ELEM(3, 0, BOOST_PP_WHILE(BOOST_PP_MUL_P, BOOST_PP_MUL_O, (0, x, y))) 81 # else 82 # define BOOST_PP_MUL_DO(x, y) BOOST_PP_MUL_I(x, y) 83 # 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))) 84 # endif 85 # 86 # define BOOST_PP_MUL_P(d, rxy) BOOST_PP_BITAND(BOOST_PP_BOOL(BOOST_PP_TUPLE_ELEM(3, 2, rxy)),BOOST_PP_COMPL(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(BOOST_PP_TUPLE_ELEM(3, 0, rxy)))) 87 # 88 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT() 89 # define BOOST_PP_MUL_O(d, rxy) BOOST_PP_MUL_O_IM(d, BOOST_PP_TUPLE_REM_3 rxy) 90 # define BOOST_PP_MUL_O_IM(d, im) BOOST_PP_MUL_O_I(d, im) 91 # else 92 # 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)) 93 # endif 94 # 95 # define BOOST_PP_MUL_O_I(d, r, x, y) (BOOST_PP_ADD_D(d, r, x), x, BOOST_PP_DEC(y)) 96 # 97 # /* BOOST_PP_MUL_D */ 98 # 99 # define BOOST_PP_MUL_D(d, x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x),BOOST_PP_IDENTITY_N(x,3),BOOST_PP_MUL_CHECK_1X_D)(d,x,y) 100 # 101 # define BOOST_PP_MUL_CHECK_1X_D(d, x, y) BOOST_PP_IIF(BOOST_PP_DETAIL_IS_1_NUMBER(x),BOOST_PP_IDENTITY_N(y,3),BOOST_PP_MUL_DO_D)(d,x,y) 102 # 103 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG() 104 # define BOOST_PP_MUL_DO_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))) 105 # else 106 # define BOOST_PP_MUL_DO_D(d, x, y) BOOST_PP_MUL_D_I(d, x, y) 107 # 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))) 108 # endif 109 # 110 # endif 111 # 112 # endif 113