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_ADD_HPP
16# define BOOST_PREPROCESSOR_ARITHMETIC_ADD_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/dec.hpp>
23# include <boost/preprocessor/arithmetic/inc.hpp>
24# include <boost/preprocessor/control/while.hpp>
25# include <boost/preprocessor/tuple/elem.hpp>
26#
27# /* BOOST_PP_ADD */
28#
29# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
30# 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)))
31# else
32# define BOOST_PP_ADD(x, y) BOOST_PP_ADD_I(x, y)
33# 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)))
34# endif
35#
36# define BOOST_PP_ADD_P(d, xy) BOOST_PP_TUPLE_ELEM(2, 1, xy)
37#
38# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
39# define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I xy
40# else
41# 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))
42# endif
43#
44# define BOOST_PP_ADD_O_I(x, y) (BOOST_PP_INC(x), BOOST_PP_DEC(y))
45#
46# /* BOOST_PP_ADD_D */
47#
48# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
49# 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)))
50# else
51# define BOOST_PP_ADD_D(d, x, y) BOOST_PP_ADD_D_I(d, x, y)
52# 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)))
53# endif
54#
55# else
56#
57# include <boost/preprocessor/arithmetic/dec.hpp>
58# include <boost/preprocessor/arithmetic/inc.hpp>
59# include <boost/preprocessor/control/iif.hpp>
60# include <boost/preprocessor/control/while.hpp>
61# include <boost/preprocessor/facilities/identity.hpp>
62# include <boost/preprocessor/logical/bitand.hpp>
63# include <boost/preprocessor/logical/bitor.hpp>
64# include <boost/preprocessor/logical/bool.hpp>
65# include <boost/preprocessor/logical/compl.hpp>
66# include <boost/preprocessor/tuple/elem.hpp>
67# include <boost/preprocessor/arithmetic/detail/is_maximum_number.hpp>
68# include <boost/preprocessor/arithmetic/detail/is_minimum_number.hpp>
69#
70# /* BOOST_PP_ADD */
71#
72# define BOOST_PP_ADD(x, y) BOOST_PP_IIF(BOOST_PP_BITOR(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x)),BOOST_PP_IDENTITY_N(y,2),BOOST_PP_ADD_DO)(x,y)
73#
74# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
75# define BOOST_PP_ADD_DO(x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
76# else
77# define BOOST_PP_ADD_DO(x, y) BOOST_PP_ADD_I(x, y)
78# 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)))
79# endif
80#
81# define BOOST_PP_ADD_P(d, xy) BOOST_PP_BITAND(BOOST_PP_BOOL(BOOST_PP_TUPLE_ELEM(2, 1, xy)),BOOST_PP_COMPL(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(BOOST_PP_TUPLE_ELEM(2, 0, xy))))
82#
83# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC()
84# define BOOST_PP_ADD_O(d, xy) BOOST_PP_ADD_O_I xy
85# else
86# 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))
87# endif
88#
89# define BOOST_PP_ADD_O_I(x, y) (BOOST_PP_INC(x), BOOST_PP_DEC(y))
90#
91# /* BOOST_PP_ADD_D */
92#
93# define BOOST_PP_ADD_D(d, x, y) BOOST_PP_IIF(BOOST_PP_BITOR(BOOST_PP_DETAIL_IS_MAXIMUM_NUMBER(y),BOOST_PP_DETAIL_IS_MINIMUM_NUMBER(x)),BOOST_PP_IDENTITY_N(y,3),BOOST_PP_ADD_DO_D)(d,x,y)
94#
95# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
96# define BOOST_PP_ADD_DO_D(d, x, y) BOOST_PP_TUPLE_ELEM(2, 0, BOOST_PP_WHILE_ ## d(BOOST_PP_ADD_P, BOOST_PP_ADD_O, (x, y)))
97# else
98# define BOOST_PP_ADD_DO_D(d, x, y) BOOST_PP_ADD_D_I(d, x, y)
99# 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)))
100# endif
101#
102# endif
103#
104# endif
105