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

Revision 857, 2.9 KB checked in by igarcia, 19 years ago (diff)
Line 
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_REMOVE_HPP
13# define BOOST_PREPROCESSOR_ARRAY_REMOVE_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/array/size.hpp>
19# include <boost/preprocessor/comparison/not_equal.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/eat.hpp>
24# include <boost/preprocessor/tuple/elem.hpp>
25#
26# /* BOOST_PP_ARRAY_REMOVE */
27#
28# define BOOST_PP_ARRAY_REMOVE(array, i) BOOST_PP_ARRAY_REMOVE_I(BOOST_PP_DEDUCE_D(), array, i)
29# define BOOST_PP_ARRAY_REMOVE_I(d, array, i) BOOST_PP_ARRAY_REMOVE_D(d, array, i)
30#
31# /* BOOST_PP_ARRAY_REMOVE_D */
32#
33# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
34#    define BOOST_PP_ARRAY_REMOVE_D(d, array, i) BOOST_PP_TUPLE_ELEM(4, 2, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REMOVE_P, BOOST_PP_ARRAY_REMOVE_O, (0, i, (0, ()), array)))
35# else
36#    define BOOST_PP_ARRAY_REMOVE_D(d, array, i) BOOST_PP_ARRAY_REMOVE_D_I(d, array, i)
37#    define BOOST_PP_ARRAY_REMOVE_D_I(d, array, i) BOOST_PP_TUPLE_ELEM(4, 2, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REMOVE_P, BOOST_PP_ARRAY_REMOVE_O, (0, i, (0, ()), array)))
38# endif
39#
40# define BOOST_PP_ARRAY_REMOVE_P(d, st) BOOST_PP_NOT_EQUAL(BOOST_PP_TUPLE_ELEM(4, 0, st), BOOST_PP_ARRAY_SIZE(BOOST_PP_TUPLE_ELEM(4, 3, st)))
41#
42# if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
43#    define BOOST_PP_ARRAY_REMOVE_O(d, st) BOOST_PP_ARRAY_REMOVE_O_I st
44# else
45#    define BOOST_PP_ARRAY_REMOVE_O(d, st) BOOST_PP_ARRAY_REMOVE_O_I(BOOST_PP_TUPLE_ELEM(4, 0, st), BOOST_PP_TUPLE_ELEM(4, 1, st), BOOST_PP_TUPLE_ELEM(4, 2, st), BOOST_PP_TUPLE_ELEM(4, 3, st))
46# endif
47#
48# if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_DMC()
49#    define BOOST_PP_ARRAY_REMOVE_O_I(n, i, res, arr) (BOOST_PP_INC(n), i, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_PUSH_BACK, res BOOST_PP_TUPLE_EAT_2)(res, BOOST_PP_ARRAY_ELEM(n, arr)), arr)
50# else
51#    define BOOST_PP_ARRAY_REMOVE_O_I(n, i, res, arr) (BOOST_PP_INC(n), i, BOOST_PP_IIF(BOOST_PP_NOT_EQUAL(n, i), BOOST_PP_ARRAY_PUSH_BACK, BOOST_PP_TUPLE_ELEM_2_0)(res, BOOST_PP_ARRAY_ELEM(n, arr)), arr)
52# endif
53#
54# endif
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