multiset.h

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00001 // Debugging multiset implementation -*- C++ -*-
00002 
00003 // Copyright (C) 2003, 2004, 2005
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::multiset<_Key, _Compare, _Allocator>,
00050       public __gnu_debug::_Safe_sequence<multiset<_Key, _Compare, _Allocator> >
00051     {
00052       typedef _GLIBCXX_STD::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<_Key,_Compare,_Allocator>& __x)
00090       : _Base(__x), _Safe_base() { }
00091 
00092       multiset(const _Base& __x) : _Base(__x), _Safe_base() { }
00093 
00094       ~multiset() { }
00095 
00096       multiset<_Key,_Compare,_Allocator>&
00097       operator=(const multiset<_Key,_Compare,_Allocator>& __x)
00098       {
00099     *static_cast<_Base*>(this) = __x;
00100     this->_M_invalidate_all();
00101     return *this;
00102       }
00103 
00104       using _Base::get_allocator;
00105 
00106       // iterators:
00107       iterator
00108       begin()
00109       { return iterator(_Base::begin(), this); }
00110 
00111       const_iterator
00112       begin() const
00113       { return const_iterator(_Base::begin(), this); }
00114 
00115       iterator
00116       end()
00117       { return iterator(_Base::end(), this); }
00118 
00119       const_iterator
00120       end() const
00121       { return const_iterator(_Base::end(), this); }
00122 
00123       reverse_iterator
00124       rbegin()
00125       { return reverse_iterator(end()); }
00126 
00127       const_reverse_iterator
00128       rbegin() const
00129       { return const_reverse_iterator(end()); }
00130 
00131       reverse_iterator
00132       rend()
00133       { return reverse_iterator(begin()); }
00134 
00135       const_reverse_iterator
00136       rend() const
00137       { return const_reverse_iterator(begin()); }
00138 
00139       // capacity:
00140       using _Base::empty;
00141       using _Base::size;
00142       using _Base::max_size;
00143 
00144       // modifiers:
00145       iterator
00146       insert(const value_type& __x)
00147       { return iterator(_Base::insert(__x), this); }
00148 
00149       iterator
00150       insert(iterator __position, const value_type& __x)
00151       {
00152     __glibcxx_check_insert(__position);
00153     return iterator(_Base::insert(__position.base(), __x), this);
00154       }
00155 
00156       template<typename _InputIterator>
00157       void
00158       insert(_InputIterator __first, _InputIterator __last)
00159       {
00160     __glibcxx_check_valid_range(__first, __last);
00161     _Base::insert(__first, __last);
00162       }
00163 
00164       void
00165       erase(iterator __position)
00166       {
00167     __glibcxx_check_erase(__position);
00168     __position._M_invalidate();
00169     _Base::erase(__position.base());
00170       }
00171 
00172       size_type
00173       erase(const key_type& __x)
00174       {
00175     std::pair<iterator, iterator> __victims = this->equal_range(__x);
00176     size_type __count = 0;
00177     while (__victims.first != __victims.second)
00178     {
00179       iterator __victim = __victims.first++;
00180       __victim._M_invalidate();
00181       _Base::erase(__victim.base());
00182       ++__count;
00183     }
00184     return __count;
00185       }
00186 
00187       void
00188       erase(iterator __first, iterator __last)
00189       {
00190     // _GLIBCXX_RESOLVE_LIB_DEFECTS
00191     // 151. can't currently clear() empty container
00192     __glibcxx_check_erase_range(__first, __last);
00193     while (__first != __last)
00194     this->erase(__first++);
00195       }
00196 
00197       void
00198       swap(multiset<_Key,_Compare,_Allocator>& __x)
00199       {
00200     _Base::swap(__x);
00201     this->_M_swap(__x);
00202       }
00203 
00204       void
00205       clear()
00206       { this->erase(begin(), end()); }
00207 
00208       // observers:
00209       using _Base::key_comp;
00210       using _Base::value_comp;
00211 
00212       // multiset operations:
00213       iterator
00214       find(const key_type& __x)
00215       { return iterator(_Base::find(__x), this); }
00216 
00217       // _GLIBCXX_RESOLVE_LIB_DEFECTS
00218       // 214. set::find() missing const overload
00219       const_iterator
00220       find(const key_type& __x) const
00221       { return const_iterator(_Base::find(__x), this); }
00222 
00223       using _Base::count;
00224 
00225       iterator
00226       lower_bound(const key_type& __x)
00227       { return iterator(_Base::lower_bound(__x), this); }
00228 
00229       // _GLIBCXX_RESOLVE_LIB_DEFECTS
00230       // 214. set::find() missing const overload
00231       const_iterator
00232       lower_bound(const key_type& __x) const
00233       { return const_iterator(_Base::lower_bound(__x), this); }
00234 
00235       iterator
00236       upper_bound(const key_type& __x)
00237       { return iterator(_Base::upper_bound(__x), this); }
00238 
00239       // _GLIBCXX_RESOLVE_LIB_DEFECTS
00240       // 214. set::find() missing const overload
00241       const_iterator
00242       upper_bound(const key_type& __x) const
00243       { return const_iterator(_Base::upper_bound(__x), this); }
00244 
00245       std::pair<iterator,iterator>
00246       equal_range(const key_type& __x)
00247       {
00248     typedef typename _Base::iterator _Base_iterator;
00249     std::pair<_Base_iterator, _Base_iterator> __res =
00250         _Base::equal_range(__x);
00251     return std::make_pair(iterator(__res.first, this),
00252                   iterator(__res.second, this));
00253       }
00254 
00255       // _GLIBCXX_RESOLVE_LIB_DEFECTS
00256       // 214. set::find() missing const overload
00257       std::pair<const_iterator,const_iterator>
00258       equal_range(const key_type& __x) const
00259       {
00260     typedef typename _Base::const_iterator _Base_iterator;
00261     std::pair<_Base_iterator, _Base_iterator> __res =
00262         _Base::equal_range(__x);
00263     return std::make_pair(const_iterator(__res.first, this),
00264                   const_iterator(__res.second, this));
00265       }
00266 
00267       _Base&
00268       _M_base() { return *this; }
00269 
00270       const _Base&
00271       _M_base() const { return *this; }
00272 
00273     private:
00274       void
00275       _M_invalidate_all()
00276       {
00277     typedef typename _Base::const_iterator _Base_const_iterator;
00278     typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
00279     this->_M_invalidate_if(_Not_equal(_M_base().end()));
00280       }
00281     };
00282 
00283   template<typename _Key, typename _Compare, typename _Allocator>
00284     inline bool
00285     operator==(const multiset<_Key,_Compare,_Allocator>& __lhs,
00286            const multiset<_Key,_Compare,_Allocator>& __rhs)
00287     { return __lhs._M_base() == __rhs._M_base(); }
00288 
00289   template<typename _Key, typename _Compare, typename _Allocator>
00290     inline bool
00291     operator!=(const multiset<_Key,_Compare,_Allocator>& __lhs,
00292            const multiset<_Key,_Compare,_Allocator>& __rhs)
00293     { return __lhs._M_base() != __rhs._M_base(); }
00294 
00295   template<typename _Key, typename _Compare, typename _Allocator>
00296     inline bool
00297     operator<(const multiset<_Key,_Compare,_Allocator>& __lhs,
00298           const multiset<_Key,_Compare,_Allocator>& __rhs)
00299     { return __lhs._M_base() < __rhs._M_base(); }
00300 
00301   template<typename _Key, typename _Compare, typename _Allocator>
00302     inline bool
00303     operator<=(const multiset<_Key,_Compare,_Allocator>& __lhs,
00304            const multiset<_Key,_Compare,_Allocator>& __rhs)
00305     { return __lhs._M_base() <= __rhs._M_base(); }
00306 
00307   template<typename _Key, typename _Compare, typename _Allocator>
00308     inline bool
00309     operator>=(const multiset<_Key,_Compare,_Allocator>& __lhs,
00310            const multiset<_Key,_Compare,_Allocator>& __rhs)
00311     { return __lhs._M_base() >= __rhs._M_base(); }
00312 
00313   template<typename _Key, typename _Compare, typename _Allocator>
00314     inline bool
00315     operator>(const multiset<_Key,_Compare,_Allocator>& __lhs,
00316           const multiset<_Key,_Compare,_Allocator>& __rhs)
00317     { return __lhs._M_base() > __rhs._M_base(); }
00318 
00319   template<typename _Key, typename _Compare, typename _Allocator>
00320     void
00321     swap(multiset<_Key,_Compare,_Allocator>& __x,
00322      multiset<_Key,_Compare,_Allocator>& __y)
00323     { return __x.swap(__y); }
00324 } // namespace __debug
00325 } // namespace std
00326 
00327 #endif

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