1 # /* **************************************************************************
2 #  *                                                                          *
3 #  *     (C) Copyright Paul Mensonides 2002.
4 #  *     Distributed under the Boost Software License, Version 1.0. (See
5 #  *     accompanying file LICENSE_1_0.txt or copy at
6 #  *     http://www.boost.org/LICENSE_1_0.txt)
7 #  *                                                                          *
8 #  ************************************************************************** */
9 #
10 # /* See http://www.boost.org for most recent version. */
11 #
12 # ifndef BOOST_PREPROCESSOR_ARRAY_REPLACE_HPP
13 # define BOOST_PREPROCESSOR_ARRAY_REPLACE_HPP
14 #
15 # include <boost/preprocessor/config/config.hpp>
16 #
17 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
18 #
19 # include <boost/preprocessor/arithmetic/inc.hpp>
20 # include <boost/preprocessor/array/elem.hpp>
21 # include <boost/preprocessor/array/push_back.hpp>
22 # include <boost/preprocessor/comparison/not_equal.hpp>
23 # include <boost/preprocessor/config/config.hpp>
24 # include <boost/preprocessor/control/deduce_d.hpp>
25 # include <boost/preprocessor/control/iif.hpp>
26 # include <boost/preprocessor/control/while.hpp>
27 # include <boost/preprocessor/tuple/elem.hpp>
28 #
29 # /* BOOST_PP_ARRAY_REPLACE */
30 #
31 # define BOOST_PP_ARRAY_REPLACE(array, i, elem) BOOST_PP_ARRAY_REPLACE_I(BOOST_PP_DEDUCE_D(), array, i, elem)
32 # define BOOST_PP_ARRAY_REPLACE_I(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem)
33 #
34 # /* BOOST_PP_ARRAY_REPLACE_D */
35 #
36 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
37 #    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REPLACE_P, BOOST_PP_ARRAY_REPLACE_O, (0, i, elem, (0, ()), array)))
38 # else
39 #    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem)
40 #    define BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem) BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REPLACE_P, BOOST_PP_ARRAY_REPLACE_O, (0, i, elem, (0, ()), array)))
41 # endif
42 #
43 # define BOOST_PP_ARRAY_REPLACE_P(d, state) BOOST_PP_NOT_EQUAL(BOOST_PP_TUPLE_ELEM(5, 0, state), BOOST_PP_ARRAY_SIZE(BOOST_PP_TUPLE_ELEM(5, 4, state)))
44 #
45 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
46 #    define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I state
47 # else
48 #    define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I(BOOST_PP_TUPLE_ELEM(5, 0, state), BOOST_PP_TUPLE_ELEM(5, 1, state), BOOST_PP_TUPLE_ELEM(5, 2, state), BOOST_PP_TUPLE_ELEM(5, 3, state), BOOST_PP_TUPLE_ELEM(5, 4, state))
49 # endif
50 #
51 # define BOOST_PP_ARRAY_REPLACE_O_I(n, i, elem, res, arr) (BOOST_PP_INC(n), i, elem, BOOST_PP_ARRAY_PUSH_BACK(res, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_ELEM(n, arr), elem)), arr)
52 #
53 # else
54 #
55 # include <boost/preprocessor/arithmetic/inc.hpp>
56 # include <boost/preprocessor/array/elem.hpp>
57 # include <boost/preprocessor/array/push_back.hpp>
58 # include <boost/preprocessor/comparison/not_equal.hpp>
59 # include <boost/preprocessor/control/deduce_d.hpp>
60 # include <boost/preprocessor/control/iif.hpp>
61 # include <boost/preprocessor/control/while.hpp>
62 # if BOOST_PP_LIMIT_TUPLE == 256
63 # include <boost/preprocessor/logical/not.hpp>
64 # endif
65 # include <boost/preprocessor/tuple/elem.hpp>
66 #
67 # /* BOOST_PP_ARRAY_REPLACE */
68 #
69 # define BOOST_PP_ARRAY_REPLACE(array, i, elem) BOOST_PP_ARRAY_REPLACE_I(BOOST_PP_DEDUCE_D(), array, i, elem)
70 # define BOOST_PP_ARRAY_REPLACE_I(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem)
71 #
72 # /* BOOST_PP_ARRAY_REPLACE_D */
73 #
74 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
75 # if BOOST_PP_LIMIT_TUPLE == 256
76 #    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_ZERO_D(d, array, i, elem, BOOST_PP_NOT(i))
77 # else
78 #    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REPLACE_P, BOOST_PP_ARRAY_REPLACE_O, (0, i, elem, (0, ()), array)))
79 # endif
80 # else
81 #    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem)
82 # if BOOST_PP_LIMIT_TUPLE == 256
83 #    define BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_ZERO_D(d, array, i, elem, BOOST_PP_NOT(i))
84 # else
85 #    define BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem) BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REPLACE_P, BOOST_PP_ARRAY_REPLACE_O, (0, i, elem, (0, ()), array)))
86 # endif
87 # endif
88 #
89 # if BOOST_PP_LIMIT_TUPLE == 256
90 # define BOOST_PP_ARRAY_REPLACE_ZERO_D(d, array, i, elem, zero) \
91          BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REPLACE_P, BOOST_PP_ARRAY_REPLACE_O, \
92          (1, i, elem, BOOST_PP_IIF(zero,(1, (elem)),(1, (BOOST_PP_ARRAY_ELEM(0,array)))), array)))
93 # endif
94 #
95 # define BOOST_PP_ARRAY_REPLACE_P(d, state) BOOST_PP_NOT_EQUAL(BOOST_PP_TUPLE_ELEM(5, 0, state), BOOST_PP_ARRAY_SIZE(BOOST_PP_TUPLE_ELEM(5, 4, state)))
96 #
97 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
98 #    define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I state
99 # else
100 #    define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I(BOOST_PP_TUPLE_ELEM(5, 0, state), BOOST_PP_TUPLE_ELEM(5, 1, state), BOOST_PP_TUPLE_ELEM(5, 2, state), BOOST_PP_TUPLE_ELEM(5, 3, state), BOOST_PP_TUPLE_ELEM(5, 4, state))
101 # endif
102 #
103 # define BOOST_PP_ARRAY_REPLACE_O_I(n, i, elem, res, arr) (BOOST_PP_INC(n), i, elem, BOOST_PP_ARRAY_PUSH_BACK(res, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_ELEM(n, arr), elem)), arr)
104 #
105 # endif
106 #
107 # endif
108