# multiset.h

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    00001 // Debugging multiset implementation -*- C++ -*-
    00002
    00003 // Copyright (C) 2003, 2004, 2005, 2006, 2007
    00004 // Free Software Foundation, Inc.
    00005 //
    00006 // This file is part of the GNU ISO C++ Library.  This library is free
    00007 // software; you can redistribute it and/or modify it under the
    00008 // terms of the GNU General Public License as published by the
    00009 // Free Software Foundation; either version 2, or (at your option)
    00010 // any later version.
    00011
    00012 // This library is distributed in the hope that it will be useful,
    00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of
    00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00015 // GNU General Public License for more details.
    00016
    00017 // You should have received a copy of the GNU General Public License along
    00018 // with this library; see the file COPYING.  If not, write to the Free
    00019 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
    00020 // USA.
    00021
    00022 // As a special exception, you may use this file as part of a free software
    00023 // library without restriction.  Specifically, if other files instantiate
    00024 // templates or use macros or inline functions from this file, or you compile
    00025 // this file and link it with other files to produce an executable, this
    00026 // file does not by itself cause the resulting executable to be covered by
    00027 // the GNU General Public License.  This exception does not however
    00028 // invalidate any other reasons why the executable file might be covered by
    00029 // the GNU General Public License.
    00030
    00031 /** @file debug/multiset.h
    00032  *  This file is a GNU debug extension to the Standard C++ Library.
    00033  */
    00034
    00035 #ifndef _GLIBCXX_DEBUG_MULTISET_H
    00036 #define _GLIBCXX_DEBUG_MULTISET_H 1
    00037
    00038 #include <debug/safe_sequence.h>
    00039 #include <debug/safe_iterator.h>
    00040 #include <utility>
    00041
    00042 namespace std
    00043 {
    00044 namespace __debug
    00045 {
    00046   template<typename _Key, typename _Compare = std::less<_Key>,
    00047        typename _Allocator = std::allocator<_Key> >
    00048     class multiset
    00049     : public _GLIBCXX_STD_D::multiset<_Key, _Compare, _Allocator>,
    00050       public __gnu_debug::_Safe_sequence<multiset<_Key, _Compare, _Allocator> >
    00051     {
    00052       typedef _GLIBCXX_STD_D::multiset<_Key, _Compare, _Allocator> _Base;
    00053       typedef __gnu_debug::_Safe_sequence<multiset> _Safe_base;
    00054
    00055     public:
    00056       // types:
    00057       typedef _Key                   key_type;
    00058       typedef _Key                   value_type;
    00059       typedef _Compare                   key_compare;
    00060       typedef _Compare                   value_compare;
    00061       typedef _Allocator                 allocator_type;
    00062       typedef typename _Base::reference              reference;
    00063       typedef typename _Base::const_reference        const_reference;
    00064
    00065       typedef __gnu_debug::_Safe_iterator<typename _Base::iterator, multiset>
    00066       iterator;
    00067       typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator,
    00068                       multiset> const_iterator;
    00069
    00070       typedef typename _Base::size_type              size_type;
    00071       typedef typename _Base::difference_type        difference_type;
    00072       typedef typename _Base::pointer                pointer;
    00073       typedef typename _Base::const_pointer          const_pointer;
    00074       typedef std::reverse_iterator<iterator>        reverse_iterator;
    00075       typedef std::reverse_iterator<const_iterator>  const_reverse_iterator;
    00076
    00077       // 23.3.3.1 construct/copy/destroy:
    00078       explicit multiset(const _Compare& __comp = _Compare(),
    00079             const _Allocator& __a = _Allocator())
    00080       : _Base(__comp, __a) { }
    00081
    00082       template<typename _InputIterator>
    00083         multiset(_InputIterator __first, _InputIterator __last,
    00084          const _Compare& __comp = _Compare(),
    00085          const _Allocator& __a = _Allocator())
    00086     : _Base(__gnu_debug::__check_valid_range(__first, __last), __last,
    00087         __comp, __a) { }
    00088
    00089       multiset(const multiset& __x)
    00090       : _Base(__x), _Safe_base() { }
    00091
    00092       multiset(const _Base& __x)
    00093       : _Base(__x), _Safe_base() { }
    00094
    00095 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    00096       multiset(multiset&& __x)
    00097       : _Base(std::forward<multiset>(__x)), _Safe_base()
    00098       { this->_M_swap(__x); }
    00099 #endif
    00100
    00101       ~multiset() { }
    00102
    00103       multiset&
    00104       operator=(const multiset& __x)
    00105       {
    00106     *static_cast<_Base*>(this) = __x;
    00107     this->_M_invalidate_all();
    00108     return *this;
    00109       }
    00110
    00111 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    00112       multiset&
    00113       operator=(multiset&& __x)
    00114       {
    00115         // NB: DR 675.
    00116     clear();
    00117     swap(__x);
    00118     return *this;
    00119       }
    00120 #endif
    00121
    00122       using _Base::get_allocator;
    00123
    00124       // iterators:
    00125       iterator
    00126       begin()
    00127       { return iterator(_Base::begin(), this); }
    00128
    00129       const_iterator
    00130       begin() const
    00131       { return const_iterator(_Base::begin(), this); }
    00132
    00133       iterator
    00134       end()
    00135       { return iterator(_Base::end(), this); }
    00136
    00137       const_iterator
    00138       end() const
    00139       { return const_iterator(_Base::end(), this); }
    00140
    00141       reverse_iterator
    00142       rbegin()
    00143       { return reverse_iterator(end()); }
    00144
    00145       const_reverse_iterator
    00146       rbegin() const
    00147       { return const_reverse_iterator(end()); }
    00148
    00149       reverse_iterator
    00150       rend()
    00151       { return reverse_iterator(begin()); }
    00152
    00153       const_reverse_iterator
    00154       rend() const
    00155       { return const_reverse_iterator(begin()); }
    00156
    00157 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    00158       const_iterator
    00159       cbegin() const
    00160       { return const_iterator(_Base::begin(), this); }
    00161
    00162       const_iterator
    00163       cend() const
    00164       { return const_iterator(_Base::end(), this); }
    00165
    00166       const_reverse_iterator
    00167       crbegin() const
    00168       { return const_reverse_iterator(end()); }
    00169
    00170       const_reverse_iterator
    00171       crend() const
    00172       { return const_reverse_iterator(begin()); }
    00173 #endif
    00174
    00175       // capacity:
    00176       using _Base::empty;
    00177       using _Base::size;
    00178       using _Base::max_size;
    00179
    00180       // modifiers:
    00181       iterator
    00182       insert(const value_type& __x)
    00183       { return iterator(_Base::insert(__x), this); }
    00184
    00185       iterator
    00186       insert(iterator __position, const value_type& __x)
    00187       {
    00188     __glibcxx_check_insert(__position);
    00189     return iterator(_Base::insert(__position.base(), __x), this);
    00190       }
    00191
    00192       template<typename _InputIterator>
    00193       void
    00194       insert(_InputIterator __first, _InputIterator __last)
    00195       {
    00196     __glibcxx_check_valid_range(__first, __last);
    00197     _Base::insert(__first, __last);
    00198       }
    00199
    00200       void
    00201       erase(iterator __position)
    00202       {
    00203     __glibcxx_check_erase(__position);
    00204     __position._M_invalidate();
    00205     _Base::erase(__position.base());
    00206       }
    00207
    00208       size_type
    00209       erase(const key_type& __x)
    00210       {
    00211     std::pair<iterator, iterator> __victims = this->equal_range(__x);
    00212     size_type __count = 0;
    00213     while (__victims.first != __victims.second)
    00214     {
    00215       iterator __victim = __victims.first++;
    00216       __victim._M_invalidate();
    00217       _Base::erase(__victim.base());
    00218       ++__count;
    00219     }
    00220     return __count;
    00221       }
    00222
    00223       void
    00224       erase(iterator __first, iterator __last)
    00225       {
    00226     // _GLIBCXX_RESOLVE_LIB_DEFECTS
    00227     // 151. can't currently clear() empty container
    00228     __glibcxx_check_erase_range(__first, __last);
    00229     while (__first != __last)
    00230     this->erase(__first++);
    00231       }
    00232
    00233       void
    00234 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    00235       swap(multiset&& __x)
    00236 #else
    00237       swap(multiset& __x)
    00238 #endif
    00239       {
    00240     _Base::swap(__x);
    00241     this->_M_swap(__x);
    00242       }
    00243
    00244       void
    00245       clear()
    00246       { this->erase(begin(), end()); }
    00247
    00248       // observers:
    00249       using _Base::key_comp;
    00250       using _Base::value_comp;
    00251
    00252       // multiset operations:
    00253       iterator
    00254       find(const key_type& __x)
    00255       { return iterator(_Base::find(__x), this); }
    00256
    00257       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    00258       // 214. set::find() missing const overload
    00259       const_iterator
    00260       find(const key_type& __x) const
    00261       { return const_iterator(_Base::find(__x), this); }
    00262
    00263       using _Base::count;
    00264
    00265       iterator
    00266       lower_bound(const key_type& __x)
    00267       { return iterator(_Base::lower_bound(__x), this); }
    00268
    00269       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    00270       // 214. set::find() missing const overload
    00271       const_iterator
    00272       lower_bound(const key_type& __x) const
    00273       { return const_iterator(_Base::lower_bound(__x), this); }
    00274
    00275       iterator
    00276       upper_bound(const key_type& __x)
    00277       { return iterator(_Base::upper_bound(__x), this); }
    00278
    00279       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    00280       // 214. set::find() missing const overload
    00281       const_iterator
    00282       upper_bound(const key_type& __x) const
    00283       { return const_iterator(_Base::upper_bound(__x), this); }
    00284
    00285       std::pair<iterator,iterator>
    00286       equal_range(const key_type& __x)
    00287       {
    00288     typedef typename _Base::iterator _Base_iterator;
    00289     std::pair<_Base_iterator, _Base_iterator> __res =
    00290         _Base::equal_range(__x);
    00291     return std::make_pair(iterator(__res.first, this),
    00292                   iterator(__res.second, this));
    00293       }
    00294
    00295       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    00296       // 214. set::find() missing const overload
    00297       std::pair<const_iterator,const_iterator>
    00298       equal_range(const key_type& __x) const
    00299       {
    00300     typedef typename _Base::const_iterator _Base_iterator;
    00301     std::pair<_Base_iterator, _Base_iterator> __res =
    00302         _Base::equal_range(__x);
    00303     return std::make_pair(const_iterator(__res.first, this),
    00304                   const_iterator(__res.second, this));
    00305       }
    00306
    00307       _Base&
    00308       _M_base() { return *this; }
    00309
    00310       const _Base&
    00311       _M_base() const { return *this; }
    00312
    00313     private:
    00314       void
    00315       _M_invalidate_all()
    00316       {
    00317     typedef typename _Base::const_iterator _Base_const_iterator;
    00318     typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
    00319     this->_M_invalidate_if(_Not_equal(_M_base().end()));
    00320       }
    00321     };
    00322
    00323   template<typename _Key, typename _Compare, typename _Allocator>
    00324     inline bool
    00325     operator==(const multiset<_Key, _Compare, _Allocator>& __lhs,
    00326            const multiset<_Key, _Compare, _Allocator>& __rhs)
    00327     { return __lhs._M_base() == __rhs._M_base(); }
    00328
    00329   template<typename _Key, typename _Compare, typename _Allocator>
    00330     inline bool
    00331     operator!=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    00332            const multiset<_Key, _Compare, _Allocator>& __rhs)
    00333     { return __lhs._M_base() != __rhs._M_base(); }
    00334
    00335   template<typename _Key, typename _Compare, typename _Allocator>
    00336     inline bool
    00337     operator<(const multiset<_Key, _Compare, _Allocator>& __lhs,
    00338           const multiset<_Key, _Compare, _Allocator>& __rhs)
    00339     { return __lhs._M_base() < __rhs._M_base(); }
    00340
    00341   template<typename _Key, typename _Compare, typename _Allocator>
    00342     inline bool
    00343     operator<=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    00344            const multiset<_Key, _Compare, _Allocator>& __rhs)
    00345     { return __lhs._M_base() <= __rhs._M_base(); }
    00346
    00347   template<typename _Key, typename _Compare, typename _Allocator>
    00348     inline bool
    00349     operator>=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    00350            const multiset<_Key, _Compare, _Allocator>& __rhs)
    00351     { return __lhs._M_base() >= __rhs._M_base(); }
    00352
    00353   template<typename _Key, typename _Compare, typename _Allocator>
    00354     inline bool
    00355     operator>(const multiset<_Key, _Compare, _Allocator>& __lhs,
    00356           const multiset<_Key, _Compare, _Allocator>& __rhs)
    00357     { return __lhs._M_base() > __rhs._M_base(); }
    00358
    00359   template<typename _Key, typename _Compare, typename _Allocator>
    00360     void
    00361     swap(multiset<_Key, _Compare, _Allocator>& __x,
    00362      multiset<_Key, _Compare, _Allocator>& __y)
    00363     { return __x.swap(__y); }
    00364
    00365 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    00366   template<typename _Key, typename _Compare, typename _Allocator>
    00367     void
    00368     swap(multiset<_Key, _Compare, _Allocator>&& __x,
    00369      multiset<_Key, _Compare, _Allocator>& __y)
    00370     { return __x.swap(__y); }
    00371
    00372   template<typename _Key, typename _Compare, typename _Allocator>
    00373     void
    00374     swap(multiset<_Key, _Compare, _Allocator>& __x,
    00375      multiset<_Key, _Compare, _Allocator>&& __y)
    00376     { return __x.swap(__y); }
    00377 #endif
    00378
    00379 } // namespace __debug
    00380 } // namespace std
    00381
    00382 #endif