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

   1 // Debugging map 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_MAP_H
  32 #define _GLIBCXX_DEBUG_MAP_H 1
  33
  34 #include <debug/safe_sequence.h>
  35 #include <debug/safe_iterator.h>
  36 #include <utility>
  37
  38 namespace __gnu_debug_def
  39 {
  40   template<typename _Key, typename _Tp, typename _Compare = std::less<_Key>,
  41            typename _Allocator = std::allocator<std::pair<const _Key, _Tp> > >
  42     class map
  43     : public __gnu_norm::map<_Key, _Tp, _Compare, _Allocator>,
  44       public __gnu_debug::_Safe_sequence<map<_Key, _Tp, _Compare, _Allocator> >
  45     {
  46       typedef __gnu_norm::map<_Key, _Tp, _Compare, _Allocator> _Base;
  47       typedef __gnu_debug::_Safe_sequence<map> _Safe_base;
  48
  49     public:
  50       // types:
  51       typedef _Key                                  key_type;
  52       typedef _Tp                                   mapped_type;
  53       typedef std::pair<const _Key, _Tp>            value_type;
  54       typedef _Compare                              key_compare;
  55       typedef _Allocator                            allocator_type;
  56       typedef typename _Allocator::reference        reference;
  57       typedef typename _Allocator::const_reference  const_reference;
  58
  59       typedef __gnu_debug::_Safe_iterator<typename _Base::iterator, map>
  60                                                     iterator;
  61       typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator, map>
  62                                                     const_iterator;
  63
  64       typedef typename _Base::size_type             size_type;
  65       typedef typename _Base::difference_type       difference_type;
  66       typedef typename _Allocator::pointer          pointer;
  67       typedef typename _Allocator::const_pointer    const_pointer;
  68       typedef std::reverse_iterator<iterator>       reverse_iterator;
  69       typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
  70
  71       using _Base::value_compare;
  72
  73       // 23.3.1.1 construct/copy/destroy:
  74       explicit map(const _Compare& __comp = _Compare(),
  75                    const _Allocator& __a = _Allocator())
  76       : _Base(__comp, __a) { }
  77
  78       template<typename _InputIterator>
  79         map(_InputIterator __first, _InputIterator __last,
  80             const _Compare& __comp = _Compare(),
  81             const _Allocator& __a = _Allocator())
  82         : _Base(__gnu_debug::__check_valid_range(__first, __last), __last,
  83                 __comp, __a), _Safe_base() { }
  84
  85       map(const map<_Key,_Tp,_Compare,_Allocator>& __x)
  86       : _Base(__x), _Safe_base() { }
  87
  88       map(const _Base& __x) : _Base(__x), _Safe_base() { }
  89
  90       ~map() { }
  91
  92       map<_Key,_Tp,_Compare,_Allocator>&
  93       operator=(const map<_Key,_Tp,_Compare,_Allocator>& __x)
  94       {
  95         *static_cast<_Base*>(this) = __x;
  96         this->_M_invalidate_all();
  97         return *this;
  98       }
  99
 100       // _GLIBCXX_RESOLVE_LIB_DEFECTS
 101       // 133. map missing get_allocator()
 102       using _Base::get_allocator;
 103
 104       // iterators:
 105       iterator
 106       begin()
 107       { return iterator(_Base::begin(), this); }
 108
 109       const_iterator
 110       begin() const
 111       { return const_iterator(_Base::begin(), this); }
 112
 113       iterator
 114       end()
 115       { return iterator(_Base::end(), this); }
 116
 117       const_iterator
 118       end() const
 119       { return const_iterator(_Base::end(), this); }
 120
 121       reverse_iterator
 122       rbegin()
 123       { return reverse_iterator(end()); }
 124
 125       const_reverse_iterator
 126       rbegin() const
 127       { return const_reverse_iterator(end()); }
 128
 129       reverse_iterator
 130       rend()
 131       { return reverse_iterator(begin()); }
 132
 133       const_reverse_iterator
 134       rend() const
 135       { return const_reverse_iterator(begin()); }
 136
 137       // capacity:
 138       using _Base::empty;
 139       using _Base::size;
 140       using _Base::max_size;
 141
 142       // 23.3.1.2 element access:
 143       using _Base::operator[];
 144
 145       // modifiers:
 146       std::pair<iterator, bool>
 147       insert(const value_type& __x)
 148       {
 149         typedef typename _Base::iterator _Base_iterator;
 150         std::pair<_Base_iterator, bool> __res = _Base::insert(__x);
 151         return std::pair<iterator, bool>(iterator(__res.first, this),
 152                                          __res.second);
 153       }
 154
 155       iterator
 156       insert(iterator __position, const value_type& __x)
 157       {
 158         __glibcxx_check_insert(__position);
 159         return iterator(_Base::insert(__position.base(), __x), this);
 160       }
 161
 162       template<typename _InputIterator>
 163         void
 164         insert(_InputIterator __first, _InputIterator __last)
 165         {
 166           __glibcxx_valid_range(__first, __last);
 167           _Base::insert(__first, __last);
 168         }
 169
 170       void
 171       erase(iterator __position)
 172       {
 173         __glibcxx_check_erase(__position);
 174         __position._M_invalidate();
 175         _Base::erase(__position.base());
 176       }
 177
 178       size_type
 179       erase(const key_type& __x)
 180       {
 181         iterator __victim = find(__x);
 182         if (__victim == end())
 183           return 0;
 184         else
 185         {
 186           __victim._M_invalidate();
 187           _Base::erase(__victim.base());
 188           return 1;
 189         }
 190       }
 191
 192       void
 193       erase(iterator __first, iterator __last)
 194       {
 195         // _GLIBCXX_RESOLVE_LIB_DEFECTS
 196         // 151. can't currently clear() empty container
 197         __glibcxx_check_erase_range(__first, __last);
 198         while (__first != __last)
 199           this->erase(__first++);
 200       }
 201
 202       void
 203       swap(map<_Key,_Tp,_Compare,_Allocator>& __x)
 204       {
 205         _Base::swap(__x);
 206         this->_M_swap(__x);
 207       }
 208
 209       void
 210       clear()
 211       { this->erase(begin(), end()); }
 212
 213       // observers:
 214       using _Base::key_comp;
 215       using _Base::value_comp;
 216
 217       // 23.3.1.3 map operations:
 218       iterator
 219       find(const key_type& __x)
 220       { return iterator(_Base::find(__x), this); }
 221
 222       const_iterator
 223       find(const key_type& __x) const
 224       { return const_iterator(_Base::find(__x), this); }
 225
 226       using _Base::count;
 227
 228       iterator
 229       lower_bound(const key_type& __x)
 230       { return iterator(_Base::lower_bound(__x), this); }
 231
 232       const_iterator
 233       lower_bound(const key_type& __x) const
 234       { return const_iterator(_Base::lower_bound(__x), this); }
 235
 236       iterator
 237       upper_bound(const key_type& __x)
 238       { return iterator(_Base::upper_bound(__x), this); }
 239
 240       const_iterator
 241       upper_bound(const key_type& __x) const
 242       { return const_iterator(_Base::upper_bound(__x), this); }
 243
 244       std::pair<iterator,iterator>
 245       equal_range(const key_type& __x)
 246       {
 247         typedef typename _Base::iterator _Base_iterator;
 248         std::pair<_Base_iterator, _Base_iterator> __res =
 249         _Base::equal_range(__x);
 250         return std::make_pair(iterator(__res.first, this),
 251                               iterator(__res.second, this));
 252       }
 253
 254       std::pair<const_iterator,const_iterator>
 255       equal_range(const key_type& __x) const
 256       {
 257         typedef typename _Base::const_iterator _Base_const_iterator;
 258         std::pair<_Base_const_iterator, _Base_const_iterator> __res =
 259         _Base::equal_range(__x);
 260         return std::make_pair(const_iterator(__res.first, this),
 261                               const_iterator(__res.second, this));
 262       }
 263
 264       _Base&
 265       _M_base() { return *this; }
 266
 267       const _Base&
 268       _M_base() const { return *this; }
 269
 270     private:
 271       void
 272       _M_invalidate_all()
 273       {
 274         typedef typename _Base::const_iterator _Base_const_iterator;
 275         typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
 276         this->_M_invalidate_if(_Not_equal(_M_base().end()));
 277       }
 278     };
 279
 280   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 281     inline bool
 282     operator==(const map<_Key,_Tp,_Compare,_Allocator>& __lhs,
 283                const map<_Key,_Tp,_Compare,_Allocator>& __rhs)
 284     { return __lhs._M_base() == __rhs._M_base(); }
 285
 286   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 287     inline bool
 288     operator!=(const map<_Key,_Tp,_Compare,_Allocator>& __lhs,
 289                const map<_Key,_Tp,_Compare,_Allocator>& __rhs)
 290     { return __lhs._M_base() != __rhs._M_base(); }
 291
 292   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 293     inline bool
 294     operator<(const map<_Key,_Tp,_Compare,_Allocator>& __lhs,
 295               const map<_Key,_Tp,_Compare,_Allocator>& __rhs)
 296     { return __lhs._M_base() < __rhs._M_base(); }
 297
 298   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 299     inline bool
 300     operator<=(const map<_Key,_Tp,_Compare,_Allocator>& __lhs,
 301                const map<_Key,_Tp,_Compare,_Allocator>& __rhs)
 302     { return __lhs._M_base() <= __rhs._M_base(); }
 303
 304   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 305     inline bool
 306     operator>=(const map<_Key,_Tp,_Compare,_Allocator>& __lhs,
 307                const map<_Key,_Tp,_Compare,_Allocator>& __rhs)
 308     { return __lhs._M_base() >= __rhs._M_base(); }
 309
 310   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 311     inline bool
 312     operator>(const map<_Key,_Tp,_Compare,_Allocator>& __lhs,
 313               const map<_Key,_Tp,_Compare,_Allocator>& __rhs)
 314     { return __lhs._M_base() > __rhs._M_base(); }
 315
 316   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 317     inline void
 318     swap(map<_Key,_Tp,_Compare,_Allocator>& __lhs,
 319          map<_Key,_Tp,_Compare,_Allocator>& __rhs)
 320     { __lhs.swap(__rhs); }
 321 } // namespace __gnu_debug_def
 322
 323 #endif