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

   1 // Debugging hash_set implementation -*- C++ -*-
   2
   3 // Copyright (C) 2003
   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, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  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 #ifndef _GLIBCXX_DEBUG_HASH_SET_H
  32 #define _GLIBCXX_DEBUG_HASH_SET_H 1
  33
  34 #include <debug/safe_sequence.h>
  35 #include <debug/safe_iterator.h>
  36
  37 namespace __gnu_debug_def
  38 {
  39   template<typename _Value,
  40            typename _HashFcn  = __gnu_cxx::hash<_Value>,
  41            typename _EqualKey = std::equal_to<_Value>,
  42            typename _Alloc =  std::allocator<_Value> >
  43     class hash_set
  44     : public __gnu_cxx::hash_set<_Value, _HashFcn, _EqualKey, _Alloc>,
  45       public __gnu_debug::_Safe_sequence<hash_set<_Value, _HashFcn, _EqualKey,
  46                                                   _Alloc> >
  47     {
  48       typedef __gnu_cxx::hash_set<_Value, _HashFcn, _EqualKey, _Alloc> _Base;
  49       typedef __gnu_debug::_Safe_sequence<hash_set> _Safe_base;
  50
  51     public:
  52       typedef typename _Base::key_type        key_type;
  53       typedef typename _Base::value_type      value_type;
  54       typedef typename _Base::hasher          hasher;
  55       typedef typename _Base::key_equal       key_equal;
  56       typedef typename _Base::size_type       size_type;
  57       typedef typename _Base::difference_type difference_type;
  58       typedef typename _Base::pointer         pointer;
  59       typedef typename _Base::const_pointer   const_pointer;
  60       typedef typename _Base::reference       reference;
  61       typedef typename _Base::const_reference const_reference;
  62
  63       typedef __gnu_debug::_Safe_iterator<typename _Base::iterator, hash_set>
  64                                               iterator;
  65       typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator,
  66                                           hash_set>
  67                                               const_iterator;
  68
  69       typedef typename _Base::allocator_type allocator_type;
  70
  71       using _Base::hash_funct;
  72       using _Base::key_eq;
  73       using _Base::get_allocator;
  74
  75       hash_set() { }
  76
  77       explicit hash_set(size_type __n) : _Base(__n) { }
  78
  79       hash_set(size_type __n, const hasher& __hf) : _Base(__n, __hf) { }
  80
  81       hash_set(size_type __n, const hasher& __hf, const key_equal& __eql,
  82                const allocator_type& __a = allocator_type())
  83       : _Base(__n, __hf, __eql, __a) { }
  84
  85       template<typename _InputIterator>
  86         hash_set(_InputIterator __f, _InputIterator __l)
  87         : _Base(__gnu_debug::__check_valid_range(__f, __l), __l) { }
  88
  89       template<typename _InputIterator>
  90         hash_set(_InputIterator __f, _InputIterator __l, size_type __n)
  91         : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n) { }
  92
  93       template<typename _InputIterator>
  94         hash_set(_InputIterator __f, _InputIterator __l, size_type __n,
  95                  const hasher& __hf)
  96         : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n, __hf) { }
  97
  98       template<typename _InputIterator>
  99         hash_set(_InputIterator __f, _InputIterator __l, size_type __n,
 100                  const hasher& __hf, const key_equal& __eql,
 101                  const allocator_type& __a = allocator_type())
 102         : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n, __hf,
 103                 __eql, __a) { }
 104
 105       hash_set(const _Base& __x) : _Base(__x), _Safe_base() { }
 106
 107       using _Base::size;
 108       using _Base::max_size;
 109       using _Base::empty;
 110
 111       void
 112       swap(hash_set& __x)
 113       {
 114         _Base::swap(__x);
 115         this->_M_swap(__x);
 116       }
 117
 118       iterator
 119       begin() const { return iterator(_Base::begin(), this); }
 120
 121       iterator
 122       end() const   { return iterator(_Base::end(),   this); }
 123
 124       std::pair<iterator, bool>
 125       insert(const value_type& __obj)
 126       {
 127         std::pair<typename _Base::iterator, bool> __res =
 128         _Base::insert(__obj);
 129         return std::make_pair(iterator(__res.first, this), __res.second);
 130       }
 131
 132       template <typename _InputIterator>
 133         void
 134         insert(_InputIterator __first, _InputIterator __last)
 135         {
 136           __glibcxx_check_valid_range(__first, __last);
 137           _Base::insert(__first.base(), __last.base());
 138         }
 139
 140
 141       std::pair<iterator, bool>
 142       insert_noresize(const value_type& __obj)
 143       {
 144         std::pair<typename _Base::iterator, bool> __res =
 145         _Base::insert_noresize(__obj);
 146         return std::make_pair(iterator(__res.first, this), __res.second);
 147       }
 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         iterator __victim(_Base::find(__key), this);
 169         if (__victim != end())
 170           return this->erase(__victim), 1;
 171         else
 172           return 0;
 173       }
 174
 175       void
 176       erase(iterator __it)
 177       {
 178         __glibcxx_check_erase(__it);
 179         __it._M_invalidate();
 180         _Base::erase(__it.base());
 181       }
 182
 183       void
 184       erase(iterator __first, iterator __last)
 185       {
 186         __glibcxx_check_erase_range(__first, __last);
 187         for (iterator __tmp = __first; __tmp != __last;)
 188         {
 189           iterator __victim = __tmp++;
 190           __victim._M_invalidate();
 191         }
 192         _Base::erase(__first.base(), __last.base());
 193       }
 194
 195       void
 196       clear()
 197       {
 198         _Base::clear();
 199         this->_M_invalidate_all();
 200       }
 201
 202       using _Base::resize;
 203       using _Base::bucket_count;
 204       using _Base::max_bucket_count;
 205       using _Base::elems_in_bucket;
 206
 207       _Base&
 208       _M_base()       { return *this; }
 209
 210       const _Base&
 211       _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,
 224            typename _Alloc>
 225     inline bool
 226     operator==(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __x,
 227                const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __y)
 228     { return __x._M_base() == __y._M_base(); }
 229
 230   template<typename _Value, typename _HashFcn, typename _EqualKey,
 231            typename _Alloc>
 232     inline bool
 233     operator!=(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __x,
 234                const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __y)
 235     { return __x._M_base() != __y._M_base(); }
 236
 237   template<typename _Value, typename _HashFcn, typename _EqualKey,
 238            typename _Alloc>
 239     inline void
 240     swap(hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __x,
 241          hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __y)
 242     { __x.swap(__y); }
 243 } // namespace __gnu_debug_def
 244
 245 #endif