compiler/boost/preprocessor/arithmetic/mul.hpp

   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