source: NonGTP/Boost/boost/preprocessor/array/replace.hpp @ 857

Revision 857, 2.7 KB checked in by igarcia, 19 years ago (diff)
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[857]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/arithmetic/inc.hpp>
16# include <boost/preprocessor/array/elem.hpp>
17# include <boost/preprocessor/array/push_back.hpp>
18# include <boost/preprocessor/comparison/not_equal.hpp>
19# include <boost/preprocessor/config/config.hpp>
20# include <boost/preprocessor/control/deduce_d.hpp>
21# include <boost/preprocessor/control/iif.hpp>
22# include <boost/preprocessor/control/while.hpp>
23# include <boost/preprocessor/tuple/elem.hpp>
24#
25# /* BOOST_PP_ARRAY_REPLACE */
26#
27# define BOOST_PP_ARRAY_REPLACE(array, i, elem) BOOST_PP_ARRAY_REPLACE_I(BOOST_PP_DEDUCE_D(), array, i, elem)
28# define BOOST_PP_ARRAY_REPLACE_I(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem)
29#
30# /* BOOST_PP_ARRAY_REPLACE_D */
31#
32# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
33#    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)))
34# else
35#    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem)
36#    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)))
37# endif
38#
39# 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)))
40#
41# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
42#    define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I state
43# else
44#    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))
45# endif
46#
47# 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)
48#
49# endif
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