libstdc++-v3/include/debug/hash_multiset.h

   1 // Debugging hash_multiset implementation -*- C++ -*-
   2
   3 // Copyright (C) 2003, 2005, 2006
   4 // Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 // As a special exception, you may use this file as part of a free software
  23 // library without restriction.  Specifically, if other files instantiate
  24 // templates or use macros or inline functions from this file, or you compile
  25 // this file and link it with other files to produce an executable, this
  26 // file does not by itself cause the resulting executable to be covered by
  27 // the GNU General Public License.  This exception does not however
  28 // invalidate any other reasons why the executable file might be covered by
  29 // the GNU General Public License.
  30
  31 /** @file debug/hash_multiset.h
  32  *  This file is a GNU debug extension to the Standard C++ Library.
  33  */
  34
  35 #ifndef _GLIBCXX_DEBUG_HASH_MULTISET_H
  36 #define _GLIBCXX_DEBUG_HASH_MULTISET_H 1
  37
  38 #include <debug/safe_sequence.h>
  39 #include <debug/safe_iterator.h>
  40
  41 namespace __gnu_cxx
  42 {
  43 namespace __debug
  44 {
  45   template<typename _Value,
  46            typename _HashFcn  = __gnu_cxx::hash<_Value>,
  47            typename _EqualKey = std::equal_to<_Value>,
  48            typename _Alloc =  std::allocator<_Value> >
  49     class hash_multiset
  50     : public _GLIBCXX_EXT::hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc>,
  51       public __gnu_debug::_Safe_sequence<hash_multiset<_Value, _HashFcn,
  52                                                        _EqualKey, _Alloc> >
  53     {
  54       typedef _GLIBCXX_EXT:: hash_multiset<_Value,_HashFcn, _EqualKey,_Alloc>
  55                                                         _Base;
  56       typedef __gnu_debug::_Safe_sequence<hash_multiset> _Safe_base;
  57
  58   public:
  59     typedef typename _Base::key_type                    key_type;
  60     typedef typename _Base::value_type                  value_type;
  61     typedef typename _Base::hasher                      hasher;
  62     typedef typename _Base::key_equal                   key_equal;
  63     typedef typename _Base::size_type                   size_type;
  64     typedef typename _Base::difference_type             difference_type;
  65     typedef typename _Base::pointer                     pointer;
  66     typedef typename _Base::const_pointer               const_pointer;
  67     typedef typename _Base::reference                   reference;
  68     typedef typename _Base::const_reference             const_reference;
  69
  70     typedef __gnu_debug::_Safe_iterator<typename _Base::iterator,
  71                                          hash_multiset> iterator;
  72     typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator,
  73                                          hash_multiset> const_iterator;
  74
  75     typedef typename _Base::allocator_type              allocator_type;
  76
  77     using _Base::hash_funct;
  78     using _Base::key_eq;
  79     using _Base::get_allocator;
  80
  81     hash_multiset() { }
  82
  83     explicit hash_multiset(size_type __n) : _Base(__n) { }
  84
  85     hash_multiset(size_type __n, const hasher& __hf) : _Base(__n, __hf) { }
  86
  87     hash_multiset(size_type __n, const hasher& __hf, const key_equal& __eql,
  88                   const allocator_type& __a = allocator_type())
  89     : _Base(__n, __hf, __eql, __a)
  90     { }
  91
  92     template<typename _InputIterator>
  93       hash_multiset(_InputIterator __f, _InputIterator __l)
  94       : _Base(__gnu_debug::__check_valid_range(__f, __l), __l)
  95       { }
  96
  97     template<typename _InputIterator>
  98       hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n)
  99       : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n)
 100       { }
 101
 102     template<typename _InputIterator>
 103       hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n,
 104                     const hasher& __hf)
 105       : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n, __hf)
 106       { }
 107
 108     template<typename _InputIterator>
 109       hash_multiset(_InputIterator __f, _InputIterator __l, size_type __n,
 110                     const hasher& __hf, const key_equal& __eql,
 111                     const allocator_type& __a = allocator_type())
 112       : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n, __hf,
 113               __eql, __a)
 114       { }
 115
 116     hash_multiset(const _Base& __x) : _Base(__x), _Safe_base() { }
 117
 118     using _Base::size;
 119     using _Base::max_size;
 120     using _Base::empty;
 121
 122     void
 123     swap(hash_multiset& __x)
 124     {
 125       _Base::swap(__x);
 126       this->_M_swap(__x);
 127     }
 128
 129     iterator begin() const { return iterator(_Base::begin(), this); }
 130     iterator end() const   { return iterator(_Base::end(),   this); }
 131
 132     iterator
 133     insert(const value_type& __obj)
 134     { return iterator(_Base::insert(__obj), this); }
 135
 136     template <typename _InputIterator>
 137       void
 138       insert(_InputIterator __first, _InputIterator __last)
 139       {
 140         __glibcxx_check_valid_range(__first, __last);
 141         _Base::insert(__first.base(), __last.base());
 142       }
 143
 144
 145     iterator
 146     insert_noresize(const value_type& __obj)
 147     { return iterator(_Base::insert_noresize(__obj), this); }
 148
 149     iterator
 150     find(const key_type& __key) const
 151     { return iterator(_Base::find(__key), this); }
 152
 153     using _Base::count;
 154
 155     std::pair<iterator, iterator>
 156     equal_range(const key_type& __key) const
 157     {
 158       typedef typename _Base::iterator _Base_iterator;
 159       std::pair<_Base_iterator, _Base_iterator> __res =
 160         _Base::equal_range(__key);
 161       return std::make_pair(iterator(__res.first, this),
 162                             iterator(__res.second, this));
 163     }
 164
 165     size_type
 166     erase(const key_type& __key)
 167     {
 168       size_type __count = 0;
 169       std::pair<iterator, iterator> __victims = this->equal_range(__key);
 170       while (__victims.first != __victims.second)
 171         {
 172           this->erase(__victims++);
 173           ++__count;
 174         }
 175       return __count;
 176     }
 177
 178     void
 179     erase(iterator __it)
 180     {
 181       __glibcxx_check_erase(__it);
 182       __it._M_invalidate();
 183       _Base::erase(__it.base());
 184     }
 185
 186     void
 187     erase(iterator __first, iterator __last)
 188     {
 189       __glibcxx_check_erase_range(__first, __last);
 190       for (iterator __tmp = __first; __tmp != __last;)
 191         {
 192           iterator __victim = __tmp++;
 193           __victim._M_invalidate();
 194         }
 195       _Base::erase(__first.base(), __last.base());
 196     }
 197
 198     void
 199     clear()
 200     {
 201       _Base::clear();
 202       this->_M_invalidate_all();
 203     }
 204
 205     using _Base::resize;
 206     using _Base::bucket_count;
 207     using _Base::max_bucket_count;
 208     using _Base::elems_in_bucket;
 209
 210     _Base&       _M_base()       { return *this; }
 211     const _Base& _M_base() const { return *this; }
 212
 213   private:
 214     void
 215     _M_invalidate_all()
 216     {
 217       typedef typename _Base::const_iterator _Base_const_iterator;
 218       typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
 219       this->_M_invalidate_if(_Not_equal(_M_base().end()));
 220     }
 221   };
 222
 223 template<typename _Value, typename _HashFcn, typename _EqualKey, typename _Alloc>
 224   inline bool
 225   operator==(const hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc>& __x,
 226              const hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc>& __y)
 227   { return __x._M_base() == __y._M_base(); }
 228
 229 template<typename _Value, typename _HashFcn, typename _EqualKey, typename _Alloc>
 230   inline bool
 231   operator!=(const hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc>& __x,
 232              const hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc>& __y)
 233   { return __x._M_base() != __y._M_base(); }
 234
 235 template<typename _Value, typename _HashFcn, typename _EqualKey, typename _Alloc>
 236   inline void
 237   swap(hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc>& __x,
 238        hash_multiset<_Value, _HashFcn, _EqualKey, _Alloc>& __y)
 239   { __x.swap(__y); }
 240 } // namespace __debug
 241 } // namespace __gnu_cxx
 242
 243 #endif