preprocessor/array/replace.hpp

0001 # /* **************************************************************************
0002 #  *                                                                          *
0003 #  *     (C) Copyright Paul Mensonides 2002.
0004 #  *     Distributed under the Boost Software License, Version 1.0. (See
0005 #  *     accompanying file LICENSE_1_0.txt or copy at
0006 #  *     http://www.boost.org/LICENSE_1_0.txt)
0007 #  *                                                                          *
0008 #  ************************************************************************** */
0009 #
0010 # /* See http://www.boost.org for most recent version. */
0011 #
0012 # ifndef BOOST_PREPROCESSOR_ARRAY_REPLACE_HPP
0013 # define BOOST_PREPROCESSOR_ARRAY_REPLACE_HPP
0014 #
0015 # include <boost/preprocessor/config/config.hpp>
0016 #
0017 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
0018 #
0019 # include <boost/preprocessor/arithmetic/inc.hpp>
0020 # include <boost/preprocessor/array/elem.hpp>
0021 # include <boost/preprocessor/array/push_back.hpp>
0022 # include <boost/preprocessor/comparison/not_equal.hpp>
0023 # include <boost/preprocessor/config/config.hpp>
0024 # include <boost/preprocessor/control/deduce_d.hpp>
0025 # include <boost/preprocessor/control/iif.hpp>
0026 # include <boost/preprocessor/control/while.hpp>
0027 # include <boost/preprocessor/tuple/elem.hpp>
0028 #
0029 # /* BOOST_PP_ARRAY_REPLACE */
0030 #
0031 # define BOOST_PP_ARRAY_REPLACE(array, i, elem) BOOST_PP_ARRAY_REPLACE_I(BOOST_PP_DEDUCE_D(), array, i, elem)
0032 # define BOOST_PP_ARRAY_REPLACE_I(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem)
0033 #
0034 # /* BOOST_PP_ARRAY_REPLACE_D */
0035 #
0036 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0037 #    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)))
0038 # else
0039 #    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem)
0040 #    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)))
0041 # endif
0042 #
0043 # 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)))
0044 #
0045 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
0046 #    define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I state
0047 # else
0048 #    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))
0049 # endif
0050 #
0051 # 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)
0052 #
0053 # else
0054 #
0055 # include <boost/preprocessor/arithmetic/inc.hpp>
0056 # include <boost/preprocessor/array/elem.hpp>
0057 # include <boost/preprocessor/array/push_back.hpp>
0058 # include <boost/preprocessor/comparison/not_equal.hpp>
0059 # include <boost/preprocessor/control/deduce_d.hpp>
0060 # include <boost/preprocessor/control/iif.hpp>
0061 # include <boost/preprocessor/control/while.hpp>
0062 # if BOOST_PP_LIMIT_TUPLE == 256
0063 # include <boost/preprocessor/logical/not.hpp>
0064 # endif
0065 # include <boost/preprocessor/tuple/elem.hpp>
0066 #
0067 # /* BOOST_PP_ARRAY_REPLACE */
0068 #
0069 # define BOOST_PP_ARRAY_REPLACE(array, i, elem) BOOST_PP_ARRAY_REPLACE_I(BOOST_PP_DEDUCE_D(), array, i, elem)
0070 # define BOOST_PP_ARRAY_REPLACE_I(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem)
0071 #
0072 # /* BOOST_PP_ARRAY_REPLACE_D */
0073 #
0074 # if ~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_EDG()
0075 # if BOOST_PP_LIMIT_TUPLE == 256
0076 #    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_ZERO_D(d, array, i, elem, BOOST_PP_NOT(i))
0077 # else
0078 #    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)))
0079 # endif
0080 # else
0081 #    define BOOST_PP_ARRAY_REPLACE_D(d, array, i, elem) BOOST_PP_ARRAY_REPLACE_D_I(d, array, i, elem)
0082 # if BOOST_PP_LIMIT_TUPLE == 256
0083 #    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))
0084 # else
0085 #    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)))
0086 # endif
0087 # endif
0088 #
0089 # if BOOST_PP_LIMIT_TUPLE == 256
0090 # define BOOST_PP_ARRAY_REPLACE_ZERO_D(d, array, i, elem, zero) \
0091          BOOST_PP_TUPLE_ELEM(5, 3, BOOST_PP_WHILE_ ## d(BOOST_PP_ARRAY_REPLACE_P, BOOST_PP_ARRAY_REPLACE_O, \
0092          (1, i, elem, BOOST_PP_IIF(zero,(1, (elem)),(1, (BOOST_PP_ARRAY_ELEM(0,array)))), array)))
0093 # endif
0094 #
0095 # 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)))
0096 #
0097 # if BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_STRICT()
0098 #    define BOOST_PP_ARRAY_REPLACE_O(d, state) BOOST_PP_ARRAY_REPLACE_O_I state
0099 # else
0100 #    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))
0101 # endif
0102 #
0103 # 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)
0104 #
0105 # endif
0106 #
0107 # endif