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

   1 // Debugging multimap implementation -*- C++ -*-
   2
   3 // Copyright (C) 2003, 2004, 2005
   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/multimap.h
  32  *  This file is a GNU debug extension to the Standard C++ Library.
  33  */
  34
  35 #ifndef _GLIBCXX_DEBUG_MULTIMAP_H
  36 #define _GLIBCXX_DEBUG_MULTIMAP_H 1
  37
  38 #include <debug/safe_sequence.h>
  39 #include <debug/safe_iterator.h>
  40 #include <utility>
  41
  42 namespace std
  43 {
  44 namespace __debug
  45 {
  46   template<typename _Key, typename _Tp, typename _Compare = std::less<_Key>,
  47            typename _Allocator = std::allocator<std::pair<const _Key, _Tp> > >
  48     class multimap
  49     : public _GLIBCXX_STD_D::multimap<_Key, _Tp, _Compare, _Allocator>,
  50     public __gnu_debug::_Safe_sequence<multimap<_Key,_Tp,_Compare,_Allocator> >
  51     {
  52       typedef _GLIBCXX_STD_D::multimap<_Key, _Tp, _Compare, _Allocator> _Base;
  53       typedef __gnu_debug::_Safe_sequence<multimap> _Safe_base;
  54
  55     public:
  56       // types:
  57       typedef _Key                                   key_type;
  58       typedef _Tp                                    mapped_type;
  59       typedef std::pair<const _Key, _Tp>             value_type;
  60       typedef _Compare                               key_compare;
  61       typedef _Allocator                             allocator_type;
  62       typedef typename _Base::reference              reference;
  63       typedef typename _Base::const_reference        const_reference;
  64
  65       typedef __gnu_debug::_Safe_iterator<typename _Base::iterator, multimap>
  66                                                      iterator;
  67       typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator,
  68                                            multimap> const_iterator;
  69
  70       typedef typename _Base::size_type              size_type;
  71       typedef typename _Base::difference_type        difference_type;
  72       typedef typename _Base::pointer                pointer;
  73       typedef typename _Base::const_pointer          const_pointer;
  74       typedef std::reverse_iterator<iterator>        reverse_iterator;
  75       typedef std::reverse_iterator<const_iterator>  const_reverse_iterator;
  76
  77       using _Base::value_compare;
  78
  79       // 23.3.1.1 construct/copy/destroy:
  80       explicit multimap(const _Compare& __comp = _Compare(),
  81                         const _Allocator& __a = _Allocator())
  82       : _Base(__comp, __a) { }
  83
  84       template<typename _InputIterator>
  85       multimap(_InputIterator __first, _InputIterator __last,
  86                const _Compare& __comp = _Compare(),
  87                const _Allocator& __a = _Allocator())
  88       : _Base(__gnu_debug::__check_valid_range(__first, __last), __last,
  89               __comp, __a) { }
  90
  91       multimap(const multimap<_Key,_Tp,_Compare,_Allocator>& __x)
  92       : _Base(__x), _Safe_base() { }
  93
  94       multimap(const _Base& __x) : _Base(__x), _Safe_base() { }
  95
  96       ~multimap() { }
  97
  98       multimap<_Key,_Tp,_Compare,_Allocator>&
  99       operator=(const multimap<_Key,_Tp,_Compare,_Allocator>& __x)
 100       {
 101         *static_cast<_Base*>(this) = __x;
 102         this->_M_invalidate_all();
 103         return *this;
 104       }
 105
 106       using _Base::get_allocator;
 107
 108       // iterators:
 109       iterator
 110       begin()
 111       { return iterator(_Base::begin(), this); }
 112
 113       const_iterator
 114       begin() const
 115       { return const_iterator(_Base::begin(), this); }
 116
 117       iterator
 118       end()
 119       { return iterator(_Base::end(), this); }
 120
 121       const_iterator
 122       end() const
 123       { return const_iterator(_Base::end(), this); }
 124
 125       reverse_iterator
 126       rbegin()
 127       { return reverse_iterator(end()); }
 128
 129       const_reverse_iterator
 130       rbegin() const
 131       { return const_reverse_iterator(end()); }
 132
 133       reverse_iterator
 134       rend()
 135       { return reverse_iterator(begin()); }
 136
 137       const_reverse_iterator
 138       rend() const
 139       { return const_reverse_iterator(begin()); }
 140
 141       // capacity:
 142       using _Base::empty;
 143       using _Base::size;
 144       using _Base::max_size;
 145
 146       // modifiers:
 147       iterator
 148       insert(const value_type& __x)
 149       { return iterator(_Base::insert(__x), this); }
 150
 151       iterator
 152       insert(iterator __position, const value_type& __x)
 153       {
 154         __glibcxx_check_insert(__position);
 155         return iterator(_Base::insert(__position.base(), __x), this);
 156       }
 157
 158       template<typename _InputIterator>
 159         void
 160         insert(_InputIterator __first, _InputIterator __last)
 161         {
 162           __glibcxx_check_valid_range(__first, __last);
 163           _Base::insert(__first, __last);
 164         }
 165
 166       void
 167       erase(iterator __position)
 168       {
 169         __glibcxx_check_erase(__position);
 170         __position._M_invalidate();
 171         _Base::erase(__position.base());
 172       }
 173
 174       size_type
 175       erase(const key_type& __x)
 176       {
 177         std::pair<iterator, iterator> __victims = this->equal_range(__x);
 178         size_type __count = 0;
 179         while (__victims.first != __victims.second)
 180         {
 181           iterator __victim = __victims.first++;
 182           __victim._M_invalidate();
 183           _Base::erase(__victim.base());
 184           ++__count;
 185         }
 186         return __count;
 187       }
 188
 189       void
 190       erase(iterator __first, iterator __last)
 191       {
 192         // _GLIBCXX_RESOLVE_LIB_DEFECTS
 193         // 151. can't currently clear() empty container
 194         __glibcxx_check_erase_range(__first, __last);
 195         while (__first != __last)
 196         this->erase(__first++);
 197       }
 198
 199       void
 200       swap(multimap<_Key,_Tp,_Compare,_Allocator>& __x)
 201       {
 202         _Base::swap(__x);
 203         this->_M_swap(__x);
 204       }
 205
 206       void
 207       clear()
 208       { this->erase(begin(), end()); }
 209
 210       // observers:
 211       using _Base::key_comp;
 212       using _Base::value_comp;
 213
 214       // 23.3.1.3 multimap operations:
 215       iterator
 216       find(const key_type& __x)
 217       { return iterator(_Base::find(__x), this); }
 218
 219       const_iterator
 220       find(const key_type& __x) const
 221       { return const_iterator(_Base::find(__x), this); }
 222
 223       using _Base::count;
 224
 225       iterator
 226       lower_bound(const key_type& __x)
 227       { return iterator(_Base::lower_bound(__x), this); }
 228
 229       const_iterator
 230       lower_bound(const key_type& __x) const
 231       { return const_iterator(_Base::lower_bound(__x), this); }
 232
 233       iterator
 234       upper_bound(const key_type& __x)
 235       { return iterator(_Base::upper_bound(__x), this); }
 236
 237       const_iterator
 238       upper_bound(const key_type& __x) const
 239       { return const_iterator(_Base::upper_bound(__x), this); }
 240
 241       std::pair<iterator,iterator>
 242       equal_range(const key_type& __x)
 243       {
 244         typedef typename _Base::iterator _Base_iterator;
 245         std::pair<_Base_iterator, _Base_iterator> __res =
 246         _Base::equal_range(__x);
 247         return std::make_pair(iterator(__res.first, this),
 248                               iterator(__res.second, this));
 249       }
 250
 251       std::pair<const_iterator,const_iterator>
 252       equal_range(const key_type& __x) const
 253       {
 254         typedef typename _Base::const_iterator _Base_const_iterator;
 255         std::pair<_Base_const_iterator, _Base_const_iterator> __res =
 256         _Base::equal_range(__x);
 257         return std::make_pair(const_iterator(__res.first, this),
 258                               const_iterator(__res.second, this));
 259       }
 260
 261       _Base&
 262       _M_base() { return *this; }
 263
 264       const _Base&
 265       _M_base() const { return *this; }
 266
 267     private:
 268       void
 269       _M_invalidate_all()
 270       {
 271         typedef typename _Base::const_iterator _Base_const_iterator;
 272         typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
 273         this->_M_invalidate_if(_Not_equal(_M_base().end()));
 274       }
 275     };
 276
 277   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 278     inline bool
 279     operator==(const multimap<_Key,_Tp,_Compare,_Allocator>& __lhs,
 280                const multimap<_Key,_Tp,_Compare,_Allocator>& __rhs)
 281     { return __lhs._M_base() == __rhs._M_base(); }
 282
 283   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 284     inline bool
 285     operator!=(const multimap<_Key,_Tp,_Compare,_Allocator>& __lhs,
 286                const multimap<_Key,_Tp,_Compare,_Allocator>& __rhs)
 287     { return __lhs._M_base() != __rhs._M_base(); }
 288
 289   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 290     inline bool
 291     operator<(const multimap<_Key,_Tp,_Compare,_Allocator>& __lhs,
 292               const multimap<_Key,_Tp,_Compare,_Allocator>& __rhs)
 293     { return __lhs._M_base() < __rhs._M_base(); }
 294
 295   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 296     inline bool
 297     operator<=(const multimap<_Key,_Tp,_Compare,_Allocator>& __lhs,
 298                const multimap<_Key,_Tp,_Compare,_Allocator>& __rhs)
 299     { return __lhs._M_base() <= __rhs._M_base(); }
 300
 301   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 302     inline bool
 303     operator>=(const multimap<_Key,_Tp,_Compare,_Allocator>& __lhs,
 304                const multimap<_Key,_Tp,_Compare,_Allocator>& __rhs)
 305     { return __lhs._M_base() >= __rhs._M_base(); }
 306
 307   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 308     inline bool
 309     operator>(const multimap<_Key,_Tp,_Compare,_Allocator>& __lhs,
 310               const multimap<_Key,_Tp,_Compare,_Allocator>& __rhs)
 311     { return __lhs._M_base() > __rhs._M_base(); }
 312
 313   template<typename _Key,typename _Tp,typename _Compare,typename _Allocator>
 314     inline void
 315     swap(multimap<_Key,_Tp,_Compare,_Allocator>& __lhs,
 316          multimap<_Key,_Tp,_Compare,_Allocator>& __rhs)
 317     { __lhs.swap(__rhs); }
 318 } // namespace __debug
 319 } // namespace std
 320
 321 #endif