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1 // <unordered_set> -*- C++ -*-
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2
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3 // Copyright (C) 2007-2020 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 include/unordered_set
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26 * This is a Standard C++ Library header.
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27 */
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28
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29 #ifndef _GLIBCXX_UNORDERED_SET
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30 #define _GLIBCXX_UNORDERED_SET 1
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31
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32 #pragma GCC system_header
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33
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34 #if __cplusplus < 201103L
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35 # include <bits/c++0x_warning.h>
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36 #else
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37
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38 #include <type_traits>
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39 #include <initializer_list>
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40 #include <bits/allocator.h>
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41 #include <ext/alloc_traits.h>
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42 #include <ext/aligned_buffer.h>
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43 #include <bits/stl_pair.h>
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44 #include <bits/stl_function.h> // equal_to, _Identity, _Select1st
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45 #include <bits/functional_hash.h>
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46 #include <bits/hashtable.h>
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47 #include <bits/unordered_set.h>
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48 #include <bits/range_access.h>
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49 #include <bits/erase_if.h>
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50
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51 #ifdef _GLIBCXX_DEBUG
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52 # include <debug/unordered_set>
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53 #endif
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54
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55 #if __cplusplus >= 201703L
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56 namespace std _GLIBCXX_VISIBILITY(default)
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57 {
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58 _GLIBCXX_BEGIN_NAMESPACE_VERSION
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59 namespace pmr
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60 {
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61 template<typename _Tp> class polymorphic_allocator;
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62 template<typename _Key, typename _Hash = std::hash<_Key>,
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63 typename _Pred = std::equal_to<_Key>>
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64 using unordered_set
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65 = std::unordered_set<_Key, _Hash, _Pred,
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66 polymorphic_allocator<_Key>>;
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67 template<typename _Key, typename _Hash = std::hash<_Key>,
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68 typename _Pred = std::equal_to<_Key>>
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69 using unordered_multiset
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70 = std::unordered_multiset<_Key, _Hash, _Pred,
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71 polymorphic_allocator<_Key>>;
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72 } // namespace pmr
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73 _GLIBCXX_END_NAMESPACE_VERSION
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74 } // namespace std
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75 #endif // C++17
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76
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77 #if __cplusplus > 201703L
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78 namespace std _GLIBCXX_VISIBILITY(default)
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79 {
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80 _GLIBCXX_BEGIN_NAMESPACE_VERSION
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81 template<typename _Key, typename _Hash, typename _CPred, typename _Alloc,
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82 typename _Predicate>
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83 inline typename unordered_set<_Key, _Hash, _CPred, _Alloc>::size_type
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84 erase_if(unordered_set<_Key, _Hash, _CPred, _Alloc>& __cont,
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85 _Predicate __pred)
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86 { return __detail::__erase_nodes_if(__cont, __pred); }
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87
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88 template<typename _Key, typename _Hash, typename _CPred, typename _Alloc,
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89 typename _Predicate>
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90 inline typename unordered_multiset<_Key, _Hash, _CPred, _Alloc>::size_type
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91 erase_if(unordered_multiset<_Key, _Hash, _CPred, _Alloc>& __cont,
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92 _Predicate __pred)
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93 { return __detail::__erase_nodes_if(__cont, __pred); }
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94 _GLIBCXX_END_NAMESPACE_VERSION
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95 } // namespace std
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96 #endif // C++20
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97
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98 #endif // C++11
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99
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100 #endif // _GLIBCXX_UNORDERED_SET
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