| 1 | // Debugging iterator implementation (out of line) -*- C++ -*-
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| 2 |
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| 3 | // Copyright (C) 2003-2021 Free Software Foundation, Inc.
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| 4 | //
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| 5 | // This file is part of the GNU ISO C++ Library. This library is free
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| 6 | // software; you can redistribute it and/or modify it under the
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| 7 | // terms of the GNU General Public License as published by the
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| 8 | // Free Software Foundation; either version 3, or (at your option)
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| 9 | // any later version.
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| 10 |
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| 11 | // This library is distributed in the hope that it will be useful,
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| 12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | // GNU General Public License for more details.
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| 15 |
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| 16 | // Under Section 7 of GPL version 3, you are granted additional
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| 17 | // permissions described in the GCC Runtime Library Exception, version
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| 18 | // 3.1, as published by the Free Software Foundation.
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| 19 |
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| 20 | // You should have received a copy of the GNU General Public License and
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| 21 | // a copy of the GCC Runtime Library Exception along with this program;
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| 22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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| 23 | // <http://www.gnu.org/licenses/>.
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| 24 |
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| 25 | /** @file debug/safe_iterator.tcc
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| 26 | * This file is a GNU debug extension to the Standard C++ Library.
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| 27 | */
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| 28 |
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| 29 | #ifndef _GLIBCXX_DEBUG_SAFE_ITERATOR_TCC
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| 30 | #define _GLIBCXX_DEBUG_SAFE_ITERATOR_TCC 1
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| 31 |
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| 32 | #include <bits/stl_algobase.h>
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| 33 |
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| 34 | namespace __gnu_debug
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| 35 | {
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| 36 | template<typename _Iterator, typename _Sequence, typename _Category>
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| 37 | typename _Distance_traits<_Iterator>::__type
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| 38 | _Safe_iterator<_Iterator, _Sequence, _Category>::
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| 39 | _M_get_distance_from_begin() const
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| 40 | {
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| 41 | typedef _Sequence_traits<_Sequence> _SeqTraits;
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| 42 |
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| 43 | // No need to consider before_begin as this function is only used in
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| 44 | // _M_can_advance which won't be used for forward_list iterators.
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| 45 | if (_M_is_begin())
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| 46 | return std::make_pair(0, __dp_exact);
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| 47 |
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| 48 | if (_M_is_end())
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| 49 | return _SeqTraits::_S_size(*_M_get_sequence());
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| 50 |
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| 51 | typename _Distance_traits<_Iterator>::__type __res
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| 52 | = __get_distance(_M_get_sequence()->_M_base().begin(), base());
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| 53 |
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| 54 | if (__res.second == __dp_equality)
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| 55 | return std::make_pair(1, __dp_sign);
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| 56 |
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| 57 | return __res;
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| 58 | }
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| 59 |
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| 60 | template<typename _Iterator, typename _Sequence, typename _Category>
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| 61 | typename _Distance_traits<_Iterator>::__type
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| 62 | _Safe_iterator<_Iterator, _Sequence, _Category>::
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| 63 | _M_get_distance_to_end() const
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| 64 | {
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| 65 | typedef _Sequence_traits<_Sequence> _SeqTraits;
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| 66 |
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| 67 | // No need to consider before_begin as this function is only used in
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| 68 | // _M_can_advance which won't be used for forward_list iterators.
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| 69 | if (_M_is_begin())
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| 70 | return _SeqTraits::_S_size(*_M_get_sequence());
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| 71 |
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| 72 | if (_M_is_end())
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| 73 | return std::make_pair(0, __dp_exact);
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| 74 |
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| 75 | typename _Distance_traits<_Iterator>::__type __res
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| 76 | = __get_distance(base(), _M_get_sequence()->_M_base().end());
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| 77 |
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| 78 | if (__res.second == __dp_equality)
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| 79 | return std::make_pair(1, __dp_sign);
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| 80 |
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| 81 | return __res;
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| 82 | }
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| 83 |
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| 84 | template<typename _Iterator, typename _Sequence, typename _Category>
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| 85 | bool
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| 86 | _Safe_iterator<_Iterator, _Sequence, _Category>::
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| 87 | _M_can_advance(difference_type __n, bool __strict) const
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| 88 | {
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| 89 | if (this->_M_singular())
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| 90 | return false;
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| 91 |
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| 92 | if (__n == 0)
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| 93 | return true;
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| 94 |
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| 95 | std::pair<difference_type, _Distance_precision> __dist = __n < 0
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| 96 | ? _M_get_distance_from_begin()
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| 97 | : _M_get_distance_to_end();
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| 98 |
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| 99 | if (__n < 0)
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| 100 | __n = -__n;
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| 101 |
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| 102 | return __dist.second > __dp_sign
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| 103 | ? __dist.first >= __n
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| 104 | : !__strict && __dist.first > 0;
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| 105 | }
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| 106 |
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| 107 | template<typename _Iterator, typename _Sequence, typename _Category>
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| 108 | template<typename _Diff>
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| 109 | bool
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| 110 | _Safe_iterator<_Iterator, _Sequence, _Category>::
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| 111 | _M_can_advance(const std::pair<_Diff, _Distance_precision>& __dist,
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| 112 | int __way) const
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| 113 | {
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| 114 | return __dist.second == __dp_exact
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| 115 | ? _M_can_advance(__way * __dist.first)
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| 116 | : _M_can_advance(__way * (__dist.first == 0
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| 117 | ? 0
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| 118 | : __dist.first < 0 ? -1 : 1));
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| 119 | }
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| 120 |
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| 121 | template<typename _Iterator, typename _Sequence, typename _Category>
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| 122 | typename _Distance_traits<_Iterator>::__type
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| 123 | _Safe_iterator<_Iterator, _Sequence, _Category>::
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| 124 | _M_get_distance_to(const _Safe_iterator& __rhs) const
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| 125 | {
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| 126 | typedef typename _Distance_traits<_Iterator>::__type _Dist;
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| 127 | typedef _Sequence_traits<_Sequence> _SeqTraits;
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| 128 |
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| 129 | _Dist __base_dist = __get_distance(this->base(), __rhs.base());
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| 130 | if (__base_dist.second == __dp_exact)
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| 131 | return __base_dist;
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| 132 |
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| 133 | _Dist __seq_dist = _SeqTraits::_S_size(*this->_M_get_sequence());
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| 134 | if (this->_M_is_before_begin())
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| 135 | {
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| 136 | if (__rhs._M_is_begin())
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| 137 | return std::make_pair(1, __dp_exact);
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| 138 |
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| 139 | return __seq_dist.second == __dp_exact
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| 140 | ? std::make_pair(__seq_dist.first + 1, __dp_exact)
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| 141 | : __seq_dist;
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| 142 | }
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| 143 |
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| 144 | if (this->_M_is_begin())
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| 145 | {
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| 146 | if (__rhs._M_is_before_begin())
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| 147 | return std::make_pair(-1, __dp_exact);
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| 148 |
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| 149 | if (__rhs._M_is_end())
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| 150 | return __seq_dist;
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| 151 |
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| 152 | return std::make_pair(__seq_dist.first,
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| 153 | __seq_dist.second == __dp_exact
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| 154 | ? __dp_sign_max_size : __seq_dist.second);
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| 155 | }
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| 156 |
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| 157 | if (this->_M_is_end())
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| 158 | {
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| 159 | if (__rhs._M_is_before_begin())
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| 160 | return __seq_dist.second == __dp_exact
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| 161 | ? std::make_pair(-__seq_dist.first - 1, __dp_exact)
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| 162 | : std::make_pair(-__seq_dist.first, __dp_sign);
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| 163 |
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| 164 | if (__rhs._M_is_begin())
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| 165 | return std::make_pair(-__seq_dist.first, __seq_dist.second);
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| 166 |
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| 167 | return std::make_pair(-__seq_dist.first,
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| 168 | __seq_dist.second == __dp_exact
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| 169 | ? __dp_sign_max_size : __seq_dist.second);
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| 170 | }
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| 171 |
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| 172 | if (__rhs._M_is_before_begin())
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| 173 | return __seq_dist.second == __dp_exact
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| 174 | ? std::make_pair(__seq_dist.first - 1, __dp_exact)
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| 175 | : std::make_pair(-__seq_dist.first, __dp_sign);
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| 176 |
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| 177 | if (__rhs._M_is_begin())
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| 178 | return std::make_pair(-__seq_dist.first,
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| 179 | __seq_dist.second == __dp_exact
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| 180 | ? __dp_sign_max_size : __seq_dist.second);
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| 181 |
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| 182 | if (__rhs._M_is_end())
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| 183 | return std::make_pair(__seq_dist.first,
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| 184 | __seq_dist.second == __dp_exact
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| 185 | ? __dp_sign_max_size : __seq_dist.second);
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| 186 |
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| 187 | return std::make_pair(1, __dp_equality);
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| 188 | }
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| 189 |
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| 190 | template<typename _Iterator, typename _Sequence, typename _Category>
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| 191 | bool
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| 192 | _Safe_iterator<_Iterator, _Sequence, _Category>::
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| 193 | _M_valid_range(const _Safe_iterator& __rhs,
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| 194 | std::pair<difference_type, _Distance_precision>& __dist,
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| 195 | bool __check_dereferenceable) const
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| 196 | {
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| 197 | if (_M_singular() || __rhs._M_singular() || !_M_can_compare(__rhs))
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| 198 | return false;
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| 199 |
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| 200 | /* Determine iterators order */
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| 201 | __dist = _M_get_distance_to(__rhs);
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| 202 | if (__dist.second != __dp_equality)
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| 203 | {
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| 204 | // If range is not empty first iterator must be dereferenceable.
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| 205 | return __dist.first == 0
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| 206 | || (__dist.first > 0
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| 207 | && (!__check_dereferenceable || _M_dereferenceable()));
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| 208 | }
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| 209 |
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| 210 | // Assume that this is a valid range; we can't check anything else.
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| 211 | return true;
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| 212 | }
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| 213 |
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| 214 | template<typename _Iterator, typename _Sequence>
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| 215 | bool
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| 216 | _Safe_iterator<_Iterator, _Sequence, std::random_access_iterator_tag>::
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| 217 | _M_valid_range(const _Safe_iterator& __rhs,
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| 218 | std::pair<difference_type,
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| 219 | _Distance_precision>& __dist) const
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| 220 | {
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| 221 | if (this->_M_singular() || __rhs._M_singular()
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| 222 | || !this->_M_can_compare(__rhs))
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| 223 | return false;
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| 224 |
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| 225 | /* Determine iterators order */
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| 226 | __dist = std::make_pair(__rhs.base() - this->base(), __dp_exact);
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| 227 |
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| 228 | // If range is not empty first iterator must be dereferenceable.
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| 229 | return __dist.first == 0
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| 230 | || (__dist.first > 0 && this->_M_dereferenceable());
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| 231 | }
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| 232 | } // namespace __gnu_debug
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| 233 |
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| 234 | namespace std _GLIBCXX_VISIBILITY(default)
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| 235 | {
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| 236 | _GLIBCXX_BEGIN_NAMESPACE_VERSION
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| 237 |
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| 238 | template<typename _Ite, typename _Seq>
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| 239 | _Ite
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| 240 | __niter_base(const ::__gnu_debug::_Safe_iterator<_Ite, _Seq,
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| 241 | std::random_access_iterator_tag>& __it)
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| 242 | { return __it.base(); }
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| 243 |
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| 244 | template<bool _IsMove,
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| 245 | typename _Ite, typename _Seq, typename _Cat, typename _OI>
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| 246 | _OI
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| 247 | __copy_move_a(
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| 248 | const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __first,
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| 249 | const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __last,
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| 250 | _OI __result)
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| 251 | {
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| 252 | typename ::__gnu_debug::_Distance_traits<_Ite>::__type __dist;
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| 253 | __glibcxx_check_valid_range2(__first, __last, __dist);
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| 254 | __glibcxx_check_can_increment_dist(__result, __dist, 1);
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| 255 |
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| 256 | if (__dist.second > ::__gnu_debug::__dp_equality)
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| 257 | return std::__copy_move_a<_IsMove>(__first.base(), __last.base(),
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| 258 | __result);
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| 259 |
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| 260 | return std::__copy_move_a1<_IsMove>(__first, __last, __result);
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| 261 | }
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| 262 |
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| 263 | template<bool _IsMove,
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| 264 | typename _II, typename _Ite, typename _Seq, typename _Cat>
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| 265 | __gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>
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| 266 | __copy_move_a(_II __first, _II __last,
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| 267 | const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __result)
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| 268 | {
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| 269 | typename ::__gnu_debug::_Distance_traits<_II>::__type __dist;
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| 270 | __glibcxx_check_valid_range2(__first, __last, __dist);
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| 271 | __glibcxx_check_can_increment_dist(__result, __dist, 1);
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| 272 |
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| 273 | if (__dist.second > ::__gnu_debug::__dp_sign
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| 274 | && __result._M_can_advance(__dist.first, true))
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| 275 | return ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>(
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| 276 | std::__copy_move_a<_IsMove>(__first, __last, __result.base()),
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| 277 | __result._M_sequence);
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| 278 |
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| 279 | return std::__copy_move_a1<_IsMove>(__first, __last, __result);
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| 280 | }
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| 281 |
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| 282 | template<bool _IsMove,
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| 283 | typename _IIte, typename _ISeq, typename _ICat,
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| 284 | typename _OIte, typename _OSeq, typename _OCat>
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| 285 | ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>
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| 286 | __copy_move_a(
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| 287 | const ::__gnu_debug::_Safe_iterator<_IIte, _ISeq, _ICat>& __first,
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| 288 | const ::__gnu_debug::_Safe_iterator<_IIte, _ISeq, _ICat>& __last,
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| 289 | const ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>& __result)
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| 290 | {
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| 291 | typename ::__gnu_debug::_Distance_traits<_IIte>::__type __dist;
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| 292 | __glibcxx_check_valid_range2(__first, __last, __dist);
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| 293 | __glibcxx_check_can_increment_dist(__result, __dist, 1);
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| 294 |
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| 295 | if (__dist.second > ::__gnu_debug::__dp_equality)
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| 296 | {
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| 297 | if (__dist.second > ::__gnu_debug::__dp_sign
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| 298 | && __result._M_can_advance(__dist.first, true))
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| 299 | return ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>(
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| 300 | std::__copy_move_a<_IsMove>(__first.base(), __last.base(),
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| 301 | __result.base()),
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| 302 | __result._M_sequence);
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| 303 |
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| 304 | return std::__copy_move_a<_IsMove>(__first.base(), __last.base(),
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| 305 | __result);
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| 306 | }
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| 307 |
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| 308 | return std::__copy_move_a1<_IsMove>(__first, __last, __result);
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| 309 | }
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| 310 |
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| 311 | template<bool _IsMove,
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| 312 | typename _Ite, typename _Seq, typename _Cat, typename _OI>
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| 313 | _OI
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| 314 | __copy_move_backward_a(
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| 315 | const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __first,
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| 316 | const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __last,
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| 317 | _OI __result)
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| 318 | {
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| 319 | typename ::__gnu_debug::_Distance_traits<_Ite>::__type __dist;
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| 320 | __glibcxx_check_valid_range2(__first, __last, __dist);
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| 321 | __glibcxx_check_can_increment_dist(__result, __dist, -1);
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| 322 |
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| 323 | if (__dist.second > ::__gnu_debug::__dp_equality)
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| 324 | return std::__copy_move_backward_a<_IsMove>(
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| 325 | __first.base(), __last.base(), __result);
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| 326 |
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| 327 | return std::__copy_move_backward_a1<_IsMove>(__first, __last, __result);
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| 328 | }
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| 329 |
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| 330 | template<bool _IsMove,
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| 331 | typename _II, typename _Ite, typename _Seq, typename _Cat>
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| 332 | __gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>
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| 333 | __copy_move_backward_a(_II __first, _II __last,
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| 334 | const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __result)
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| 335 | {
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| 336 | typename ::__gnu_debug::_Distance_traits<_II>::__type __dist;
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| 337 | __glibcxx_check_valid_range2(__first, __last, __dist);
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| 338 | __glibcxx_check_can_increment_dist(__result, __dist, -1);
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| 339 |
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| 340 | if (__dist.second > ::__gnu_debug::__dp_sign
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| 341 | && __result._M_can_advance(-__dist.first, true))
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| 342 | return ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>(
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| 343 | std::__copy_move_backward_a<_IsMove>(__first, __last,
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| 344 | __result.base()),
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| 345 | __result._M_sequence);
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| 346 |
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| 347 | return std::__copy_move_backward_a1<_IsMove>(__first, __last, __result);
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| 348 | }
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| 349 |
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| 350 | template<bool _IsMove,
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| 351 | typename _IIte, typename _ISeq, typename _ICat,
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| 352 | typename _OIte, typename _OSeq, typename _OCat>
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| 353 | ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>
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| 354 | __copy_move_backward_a(
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| 355 | const ::__gnu_debug::_Safe_iterator<_IIte, _ISeq, _ICat>& __first,
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| 356 | const ::__gnu_debug::_Safe_iterator<_IIte, _ISeq, _ICat>& __last,
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| 357 | const ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>& __result)
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| 358 | {
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| 359 | typename ::__gnu_debug::_Distance_traits<_IIte>::__type __dist;
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| 360 | __glibcxx_check_valid_range2(__first, __last, __dist);
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| 361 | __glibcxx_check_can_increment_dist(__result, __dist, -1);
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| 362 |
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| 363 | if (__dist.second > ::__gnu_debug::__dp_equality)
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| 364 | {
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| 365 | if (__dist.second > ::__gnu_debug::__dp_sign
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| 366 | && __result._M_can_advance(-__dist.first, true))
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| 367 | return ::__gnu_debug::_Safe_iterator<_OIte, _OSeq, _OCat>(
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| 368 | std::__copy_move_backward_a<_IsMove>(__first.base(), __last.base(),
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| 369 | __result.base()),
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| 370 | __result._M_sequence);
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| 371 |
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| 372 | return std::__copy_move_backward_a<_IsMove>(
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| 373 | __first.base(), __last.base(), __result);
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| 374 | }
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| 375 |
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| 376 | return std::__copy_move_backward_a1<_IsMove>(__first, __last, __result);
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| 377 | }
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| 378 |
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| 379 | template<typename _Ite, typename _Seq, typename _Cat, typename _Tp>
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| 380 | void
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| 381 | __fill_a(const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __first,
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| 382 | const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __last,
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| 383 | const _Tp& __value)
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| 384 | {
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| 385 | typename ::__gnu_debug::_Distance_traits<_Ite>::__type __dist;
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| 386 | __glibcxx_check_valid_range2(__first, __last, __dist);
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| 387 |
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| 388 | if (__dist.second > ::__gnu_debug::__dp_equality)
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| 389 | std::__fill_a(__first.base(), __last.base(), __value);
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| 390 |
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| 391 | std::__fill_a1(__first, __last, __value);
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| 392 | }
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| 393 |
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| 394 | template<typename _Ite, typename _Seq, typename _Cat, typename _Size,
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| 395 | typename _Tp>
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| 396 | ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>
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| 397 | __fill_n_a(const ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>& __first,
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| 398 | _Size __n, const _Tp& __value,
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| 399 | std::input_iterator_tag)
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| 400 | {
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| 401 | #if __cplusplus >= 201103L
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| 402 | static_assert(is_integral<_Size>{}, "fill_n must pass integral size");
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| 403 | #endif
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| 404 |
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| 405 | if (__n <= 0)
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| 406 | return __first;
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| 407 |
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| 408 | __glibcxx_check_can_increment(__first, __n);
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| 409 | if (__first._M_can_advance(__n, true))
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| 410 | return ::__gnu_debug::_Safe_iterator<_Ite, _Seq, _Cat>(
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| 411 | std::__fill_n_a(__first.base(), __n, __value, _Cat()),
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| 412 | __first._M_sequence);
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| 413 |
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| 414 | return std::__fill_n_a1(__first, __n, __value);
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| 415 | }
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| 416 |
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| 417 | template<typename _II1, typename _Seq1, typename _Cat1, typename _II2>
|
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| 418 | bool
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| 419 | __equal_aux(
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| 420 | const ::__gnu_debug::_Safe_iterator<_II1, _Seq1, _Cat1>& __first1,
|
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| 421 | const ::__gnu_debug::_Safe_iterator<_II1, _Seq1, _Cat1>& __last1,
|
|---|
| 422 | _II2 __first2)
|
|---|
| 423 | {
|
|---|
| 424 | typename ::__gnu_debug::_Distance_traits<_II1>::__type __dist;
|
|---|
| 425 | __glibcxx_check_valid_range2(__first1, __last1, __dist);
|
|---|
| 426 | __glibcxx_check_can_increment_dist(__first2, __dist, 1);
|
|---|
| 427 |
|
|---|
| 428 | if (__dist.second > ::__gnu_debug::__dp_equality)
|
|---|
| 429 | return std::__equal_aux(__first1.base(), __last1.base(), __first2);
|
|---|
| 430 |
|
|---|
| 431 | return std::__equal_aux1(__first1, __last1, __first2);
|
|---|
| 432 | }
|
|---|
| 433 |
|
|---|
| 434 | template<typename _II1, typename _II2, typename _Seq2, typename _Cat2>
|
|---|
| 435 | bool
|
|---|
| 436 | __equal_aux(_II1 __first1, _II1 __last1,
|
|---|
| 437 | const ::__gnu_debug::_Safe_iterator<_II2, _Seq2, _Cat2>& __first2)
|
|---|
| 438 | {
|
|---|
| 439 | typename ::__gnu_debug::_Distance_traits<_II1>::__type __dist;
|
|---|
| 440 | __glibcxx_check_valid_range2(__first1, __last1, __dist);
|
|---|
| 441 | __glibcxx_check_can_increment_dist(__first2, __dist, 1);
|
|---|
| 442 |
|
|---|
| 443 | if (__dist.second > ::__gnu_debug::__dp_sign
|
|---|
| 444 | && __first2._M_can_advance(__dist.first, true))
|
|---|
| 445 | return std::__equal_aux(__first1, __last1, __first2.base());
|
|---|
| 446 |
|
|---|
| 447 | return std::__equal_aux1(__first1, __last1, __first2);
|
|---|
| 448 | }
|
|---|
| 449 |
|
|---|
| 450 | template<typename _II1, typename _Seq1, typename _Cat1,
|
|---|
| 451 | typename _II2, typename _Seq2, typename _Cat2>
|
|---|
| 452 | bool
|
|---|
| 453 | __equal_aux(
|
|---|
| 454 | const ::__gnu_debug::_Safe_iterator<_II1, _Seq1, _Cat1>& __first1,
|
|---|
| 455 | const ::__gnu_debug::_Safe_iterator<_II1, _Seq1, _Cat1>& __last1,
|
|---|
| 456 | const ::__gnu_debug::_Safe_iterator<_II2, _Seq2, _Cat2>& __first2)
|
|---|
| 457 | {
|
|---|
| 458 | typename ::__gnu_debug::_Distance_traits<_II1>::__type __dist;
|
|---|
| 459 | __glibcxx_check_valid_range2(__first1, __last1, __dist);
|
|---|
| 460 | __glibcxx_check_can_increment_dist(__first2, __dist, 1);
|
|---|
| 461 |
|
|---|
| 462 | if (__dist.second > ::__gnu_debug::__dp_equality)
|
|---|
| 463 | {
|
|---|
| 464 | if (__dist.second > ::__gnu_debug::__dp_sign &&
|
|---|
| 465 | __first2._M_can_advance(__dist.first, true))
|
|---|
| 466 | return std::__equal_aux(__first1.base(), __last1.base(),
|
|---|
| 467 | __first2.base());
|
|---|
| 468 | return std::__equal_aux(__first1.base(), __last1.base(), __first2);
|
|---|
| 469 | }
|
|---|
| 470 |
|
|---|
| 471 | return __equal_aux1(__first1, __last1, __first2);
|
|---|
| 472 | }
|
|---|
| 473 |
|
|---|
| 474 | template<typename _Ite1, typename _Seq1, typename _Cat1,
|
|---|
| 475 | typename _II2>
|
|---|
| 476 | bool
|
|---|
| 477 | __lexicographical_compare_aux(
|
|---|
| 478 | const ::__gnu_debug::_Safe_iterator<_Ite1, _Seq1, _Cat1>& __first1,
|
|---|
| 479 | const ::__gnu_debug::_Safe_iterator<_Ite1, _Seq1, _Cat1>& __last1,
|
|---|
| 480 | _II2 __first2, _II2 __last2)
|
|---|
| 481 | {
|
|---|
| 482 | typename ::__gnu_debug::_Distance_traits<_Ite1>::__type __dist1;
|
|---|
| 483 | __glibcxx_check_valid_range2(__first1, __last1, __dist1);
|
|---|
| 484 | __glibcxx_check_valid_range(__first2, __last2);
|
|---|
| 485 |
|
|---|
| 486 | if (__dist1.second > ::__gnu_debug::__dp_equality)
|
|---|
| 487 | return std::__lexicographical_compare_aux(__first1.base(),
|
|---|
| 488 | __last1.base(),
|
|---|
| 489 | __first2, __last2);
|
|---|
| 490 | return std::__lexicographical_compare_aux1(__first1, __last1,
|
|---|
| 491 | __first2, __last2);
|
|---|
| 492 | }
|
|---|
| 493 |
|
|---|
| 494 | template<typename _II1,
|
|---|
| 495 | typename _Ite2, typename _Seq2, typename _Cat2>
|
|---|
| 496 | bool
|
|---|
| 497 | __lexicographical_compare_aux(
|
|---|
| 498 | _II1 __first1, _II1 __last1,
|
|---|
| 499 | const ::__gnu_debug::_Safe_iterator<_Ite2, _Seq2, _Cat2>& __first2,
|
|---|
| 500 | const ::__gnu_debug::_Safe_iterator<_Ite2, _Seq2, _Cat2>& __last2)
|
|---|
| 501 | {
|
|---|
| 502 | __glibcxx_check_valid_range(__first1, __last1);
|
|---|
| 503 | typename ::__gnu_debug::_Distance_traits<_II1>::__type __dist2;
|
|---|
| 504 | __glibcxx_check_valid_range2(__first2, __last2, __dist2);
|
|---|
| 505 |
|
|---|
| 506 | if (__dist2.second > ::__gnu_debug::__dp_equality)
|
|---|
| 507 | return std::__lexicographical_compare_aux(__first1, __last1,
|
|---|
| 508 | __first2.base(),
|
|---|
| 509 | __last2.base());
|
|---|
| 510 | return std::__lexicographical_compare_aux1(__first1, __last1,
|
|---|
| 511 | __first2, __last2);
|
|---|
| 512 | }
|
|---|
| 513 |
|
|---|
| 514 | template<typename _Ite1, typename _Seq1, typename _Cat1,
|
|---|
| 515 | typename _Ite2, typename _Seq2, typename _Cat2>
|
|---|
| 516 | bool
|
|---|
| 517 | __lexicographical_compare_aux(
|
|---|
| 518 | const ::__gnu_debug::_Safe_iterator<_Ite1, _Seq1, _Cat1>& __first1,
|
|---|
| 519 | const ::__gnu_debug::_Safe_iterator<_Ite1, _Seq1, _Cat1>& __last1,
|
|---|
| 520 | const ::__gnu_debug::_Safe_iterator<_Ite2, _Seq2, _Cat2>& __first2,
|
|---|
| 521 | const ::__gnu_debug::_Safe_iterator<_Ite2, _Seq2, _Cat2>& __last2)
|
|---|
| 522 | {
|
|---|
| 523 | typename ::__gnu_debug::_Distance_traits<_Ite1>::__type __dist1;
|
|---|
| 524 | __glibcxx_check_valid_range2(__first1, __last1, __dist1);
|
|---|
| 525 | typename ::__gnu_debug::_Distance_traits<_Ite2>::__type __dist2;
|
|---|
| 526 | __glibcxx_check_valid_range2(__first2, __last2, __dist2);
|
|---|
| 527 |
|
|---|
| 528 | if (__dist1.second > ::__gnu_debug::__dp_equality)
|
|---|
| 529 | {
|
|---|
| 530 | if (__dist2.second > ::__gnu_debug::__dp_equality)
|
|---|
| 531 | return std::__lexicographical_compare_aux(__first1.base(),
|
|---|
| 532 | __last1.base(),
|
|---|
| 533 | __first2.base(),
|
|---|
| 534 | __last2.base());
|
|---|
| 535 | return std::__lexicographical_compare_aux(__first1.base(),
|
|---|
| 536 | __last1.base(),
|
|---|
| 537 | __first2, __last2);
|
|---|
| 538 | }
|
|---|
| 539 |
|
|---|
| 540 | if (__dist2.second > ::__gnu_debug::__dp_equality)
|
|---|
| 541 | return std::__lexicographical_compare_aux(__first1, __last1,
|
|---|
| 542 | __first2.base(),
|
|---|
| 543 | __last2.base());
|
|---|
| 544 | return std::__lexicographical_compare_aux1(__first1, __last1,
|
|---|
| 545 | __first2, __last2);
|
|---|
| 546 | }
|
|---|
| 547 |
|
|---|
| 548 | _GLIBCXX_END_NAMESPACE_VERSION
|
|---|
| 549 | } // namespace std
|
|---|
| 550 |
|
|---|
| 551 | #endif
|
|---|
