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

   1 // Debugging multimap implementation -*- C++ -*-
   2
   3 // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009, 2010
   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 3, 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 // Under Section 7 of GPL version 3, you are granted additional
  18 // permissions described in the GCC Runtime Library Exception, version
  19 // 3.1, as published by the Free Software Foundation.
  20
  21 // You should have received a copy of the GNU General Public License and
  22 // a copy of the GCC Runtime Library Exception along with this program;
  23 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24 // <http://www.gnu.org/licenses/>.
  25
  26 /** @file debug/multimap.h
  27  *  This file is a GNU debug extension to the Standard C++ Library.
  28  */
  29
  30 #ifndef _GLIBCXX_DEBUG_MULTIMAP_H
  31 #define _GLIBCXX_DEBUG_MULTIMAP_H 1
  32
  33 #include <debug/safe_sequence.h>
  34 #include <debug/safe_iterator.h>
  35 #include <utility>
  36
  37 namespace std
  38 {
  39 namespace __debug
  40 {
  41   /// Class std::multimap with safety/checking/debug instrumentation.
  42   template<typename _Key, typename _Tp, typename _Compare = std::less<_Key>,
  43            typename _Allocator = std::allocator<std::pair<const _Key, _Tp> > >
  44     class multimap
  45     : public _GLIBCXX_STD_D::multimap<_Key, _Tp, _Compare, _Allocator>,
  46       public __gnu_debug::_Safe_sequence<multimap<_Key, _Tp,
  47                                                   _Compare, _Allocator> >
  48     {
  49       typedef _GLIBCXX_STD_D::multimap<_Key, _Tp, _Compare, _Allocator> _Base;
  50       typedef __gnu_debug::_Safe_sequence<multimap> _Safe_base;
  51
  52       typedef typename _Base::const_iterator _Base_const_iterator;
  53       typedef typename _Base::iterator _Base_iterator;
  54       typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal;
  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<_Base_iterator, multimap>
  66                                                      iterator;
  67       typedef __gnu_debug::_Safe_iterator<_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::__base(__gnu_debug::__check_valid_range(__first,
  89                                                                      __last)),
  90                 __gnu_debug::__base(__last),
  91               __comp, __a) { }
  92
  93       multimap(const multimap& __x)
  94       : _Base(__x), _Safe_base() { }
  95
  96       multimap(const _Base& __x)
  97       : _Base(__x), _Safe_base() { }
  98
  99 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 100       multimap(multimap&& __x)
 101       : _Base(std::move(__x)), _Safe_base()
 102       { this->_M_swap(__x); }
 103
 104       multimap(initializer_list<value_type> __l,
 105                const _Compare& __c = _Compare(),
 106                const allocator_type& __a = allocator_type())
 107       : _Base(__l, __c, __a), _Safe_base() { }
 108 #endif
 109
 110       ~multimap() { }
 111
 112       multimap&
 113       operator=(const multimap& __x)
 114       {
 115         *static_cast<_Base*>(this) = __x;
 116         this->_M_invalidate_all();
 117         return *this;
 118       }
 119
 120 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 121       multimap&
 122       operator=(multimap&& __x)
 123       {
 124         // NB: DR 1204.
 125         // NB: DR 675.
 126         clear();
 127         swap(__x);
 128         return *this;
 129       }
 130
 131       multimap&
 132       operator=(initializer_list<value_type> __l)
 133       {
 134         this->clear();
 135         this->insert(__l);
 136         return *this;
 137       }
 138 #endif
 139
 140       using _Base::get_allocator;
 141
 142       // iterators:
 143       iterator
 144       begin()
 145       { return iterator(_Base::begin(), this); }
 146
 147       const_iterator
 148       begin() const
 149       { return const_iterator(_Base::begin(), this); }
 150
 151       iterator
 152       end()
 153       { return iterator(_Base::end(), this); }
 154
 155       const_iterator
 156       end() const
 157       { return const_iterator(_Base::end(), this); }
 158
 159       reverse_iterator
 160       rbegin()
 161       { return reverse_iterator(end()); }
 162
 163       const_reverse_iterator
 164       rbegin() const
 165       { return const_reverse_iterator(end()); }
 166
 167       reverse_iterator
 168       rend()
 169       { return reverse_iterator(begin()); }
 170
 171       const_reverse_iterator
 172       rend() const
 173       { return const_reverse_iterator(begin()); }
 174
 175 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 176       const_iterator
 177       cbegin() const
 178       { return const_iterator(_Base::begin(), this); }
 179
 180       const_iterator
 181       cend() const
 182       { return const_iterator(_Base::end(), this); }
 183
 184       const_reverse_iterator
 185       crbegin() const
 186       { return const_reverse_iterator(end()); }
 187
 188       const_reverse_iterator
 189       crend() const
 190       { return const_reverse_iterator(begin()); }
 191 #endif
 192
 193       // capacity:
 194       using _Base::empty;
 195       using _Base::size;
 196       using _Base::max_size;
 197
 198       // modifiers:
 199       iterator
 200       insert(const value_type& __x)
 201       { return iterator(_Base::insert(__x), this); }
 202
 203 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 204       template<typename _Pair, typename = typename
 205                std::enable_if<std::is_convertible<_Pair,
 206                                                   value_type>::value>::type>
 207         iterator
 208         insert(_Pair&& __x)
 209         { return iterator(_Base::insert(std::forward<_Pair>(__x)), this); }
 210 #endif
 211
 212 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 213       void
 214       insert(std::initializer_list<value_type> __list)
 215       { _Base::insert(__list); }
 216 #endif
 217
 218       iterator
 219 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 220       insert(const_iterator __position, const value_type& __x)
 221 #else
 222       insert(iterator __position, const value_type& __x)
 223 #endif
 224       {
 225         __glibcxx_check_insert(__position);
 226         return iterator(_Base::insert(__position.base(), __x), this);
 227       }
 228
 229 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 230       template<typename _Pair, typename = typename
 231                std::enable_if<std::is_convertible<_Pair,
 232                                                   value_type>::value>::type>
 233         iterator
 234         insert(const_iterator __position, _Pair&& __x)
 235         {
 236           __glibcxx_check_insert(__position);
 237           return iterator(_Base::insert(__position.base(),
 238                                         std::forward<_Pair>(__x)), this);
 239         }
 240 #endif
 241
 242       template<typename _InputIterator>
 243         void
 244         insert(_InputIterator __first, _InputIterator __last)
 245         {
 246           __glibcxx_check_valid_range(__first, __last);
 247           _Base::insert(__gnu_debug::__base(__first),
 248                         __gnu_debug::__base(__last));
 249         }
 250
 251 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 252       iterator
 253       erase(const_iterator __position)
 254       {
 255         __glibcxx_check_erase(__position);
 256         this->_M_invalidate_if(_Equal(__position.base()));
 257         return iterator(_Base::erase(__position.base()), this);
 258       }
 259 #else
 260       void
 261       erase(iterator __position)
 262       {
 263         __glibcxx_check_erase(__position);
 264         this->_M_invalidate_if(_Equal(__position.base()));
 265         _Base::erase(__position.base());
 266       }
 267 #endif
 268
 269       size_type
 270       erase(const key_type& __x)
 271       {
 272         std::pair<_Base_iterator, _Base_iterator> __victims =
 273           _Base::equal_range(__x);
 274         size_type __count = 0;
 275         _Base_iterator __victim = __victims.first;
 276         while (__victim !=  __victims.second)
 277           {
 278             this->_M_invalidate_if(_Equal(__victim));
 279             _Base::erase(__victim++);
 280             ++__count;
 281           }
 282         return __count;
 283       }
 284
 285 #ifdef __GXX_EXPERIMENTAL_CXX0X__
 286       iterator
 287       erase(const_iterator __first, const_iterator __last)
 288       {
 289         // _GLIBCXX_RESOLVE_LIB_DEFECTS
 290         // 151. can't currently clear() empty container
 291         __glibcxx_check_erase_range(__first, __last);
 292         for (_Base_const_iterator __victim = __first.base();
 293              __victim != __last.base(); ++__victim)
 294           {
 295             _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(),
 296                                   _M_message(__gnu_debug::__msg_valid_range)
 297                                   ._M_iterator(__first, "first")
 298                                   ._M_iterator(__last, "last"));
 299             this->_M_invalidate_if(_Equal(__victim));
 300           }
 301         return iterator(_Base::erase(__first.base(), __last.base()), this);
 302       }
 303 #else
 304       void
 305       erase(iterator __first, iterator __last)
 306       {
 307         // _GLIBCXX_RESOLVE_LIB_DEFECTS
 308         // 151. can't currently clear() empty container
 309         __glibcxx_check_erase_range(__first, __last);
 310         for (_Base_iterator __victim = __first.base();
 311              __victim != __last.base(); ++__victim)
 312           {
 313             _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(),
 314                                   _M_message(__gnu_debug::__msg_valid_range)
 315                                   ._M_iterator(__first, "first")
 316                                   ._M_iterator(__last, "last"));
 317             this->_M_invalidate_if(_Equal(__victim));
 318           }
 319         _Base::erase(__first.base(), __last.base());
 320       }
 321 #endif
 322
 323       void
 324       swap(multimap& __x)
 325       {
 326         _Base::swap(__x);
 327         this->_M_swap(__x);
 328       }
 329
 330       void
 331       clear()
 332       {
 333         this->_M_invalidate_all();
 334         _Base::clear();
 335       }
 336
 337       // observers:
 338       using _Base::key_comp;
 339       using _Base::value_comp;
 340
 341       // 23.3.1.3 multimap operations:
 342       iterator
 343       find(const key_type& __x)
 344       { return iterator(_Base::find(__x), this); }
 345
 346       const_iterator
 347       find(const key_type& __x) const
 348       { return const_iterator(_Base::find(__x), this); }
 349
 350       using _Base::count;
 351
 352       iterator
 353       lower_bound(const key_type& __x)
 354       { return iterator(_Base::lower_bound(__x), this); }
 355
 356       const_iterator
 357       lower_bound(const key_type& __x) const
 358       { return const_iterator(_Base::lower_bound(__x), this); }
 359
 360       iterator
 361       upper_bound(const key_type& __x)
 362       { return iterator(_Base::upper_bound(__x), this); }
 363
 364       const_iterator
 365       upper_bound(const key_type& __x) const
 366       { return const_iterator(_Base::upper_bound(__x), this); }
 367
 368       std::pair<iterator,iterator>
 369       equal_range(const key_type& __x)
 370       {
 371         std::pair<_Base_iterator, _Base_iterator> __res =
 372         _Base::equal_range(__x);
 373         return std::make_pair(iterator(__res.first, this),
 374                               iterator(__res.second, this));
 375       }
 376
 377       std::pair<const_iterator,const_iterator>
 378       equal_range(const key_type& __x) const
 379       {
 380         std::pair<_Base_const_iterator, _Base_const_iterator> __res =
 381           _Base::equal_range(__x);
 382         return std::make_pair(const_iterator(__res.first, this),
 383                               const_iterator(__res.second, this));
 384       }
 385
 386       _Base&
 387       _M_base() { return *this; }
 388
 389       const _Base&
 390       _M_base() const { return *this; }
 391
 392     private:
 393       void
 394       _M_invalidate_all()
 395       {
 396         typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
 397         this->_M_invalidate_if(_Not_equal(_Base::end()));
 398       }
 399     };
 400
 401   template<typename _Key, typename _Tp,
 402            typename _Compare, typename _Allocator>
 403     inline bool
 404     operator==(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
 405                const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
 406     { return __lhs._M_base() == __rhs._M_base(); }
 407
 408   template<typename _Key, typename _Tp,
 409            typename _Compare, typename _Allocator>
 410     inline bool
 411     operator!=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
 412                const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
 413     { return __lhs._M_base() != __rhs._M_base(); }
 414
 415   template<typename _Key, typename _Tp,
 416            typename _Compare, typename _Allocator>
 417     inline bool
 418     operator<(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
 419               const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
 420     { return __lhs._M_base() < __rhs._M_base(); }
 421
 422   template<typename _Key, typename _Tp,
 423            typename _Compare, typename _Allocator>
 424     inline bool
 425     operator<=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
 426                const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
 427     { return __lhs._M_base() <= __rhs._M_base(); }
 428
 429   template<typename _Key, typename _Tp,
 430            typename _Compare, typename _Allocator>
 431     inline bool
 432     operator>=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
 433                const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
 434     { return __lhs._M_base() >= __rhs._M_base(); }
 435
 436   template<typename _Key, typename _Tp,
 437            typename _Compare, typename _Allocator>
 438     inline bool
 439     operator>(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
 440               const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
 441     { return __lhs._M_base() > __rhs._M_base(); }
 442
 443   template<typename _Key, typename _Tp,
 444            typename _Compare, typename _Allocator>
 445     inline void
 446     swap(multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
 447          multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
 448     { __lhs.swap(__rhs); }
 449
 450 } // namespace __debug
 451 } // namespace std
 452
 453 #endif