libstdc++
debug/multiset.h
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00001 // Debugging multiset implementation -*- C++ -*-
00002 
00003 // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011
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 3, 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 // Under Section 7 of GPL version 3, you are granted additional
00018 // permissions described in the GCC Runtime Library Exception, version
00019 // 3.1, as published by the Free Software Foundation.
00020 
00021 // You should have received a copy of the GNU General Public License and
00022 // a copy of the GCC Runtime Library Exception along with this program;
00023 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
00024 // <http://www.gnu.org/licenses/>.
00025 
00026 /** @file debug/multiset.h
00027  *  This file is a GNU debug extension to the Standard C++ Library.
00028  */
00029 
00030 #ifndef _GLIBCXX_DEBUG_MULTISET_H
00031 #define _GLIBCXX_DEBUG_MULTISET_H 1
00032 
00033 #include <debug/safe_sequence.h>
00034 #include <debug/safe_iterator.h>
00035 #include <utility>
00036 
00037 namespace std _GLIBCXX_VISIBILITY(default)
00038 {
00039 namespace __debug
00040 {
00041   /// Class std::multiset with safety/checking/debug instrumentation.
00042   template<typename _Key, typename _Compare = std::less<_Key>,
00043        typename _Allocator = std::allocator<_Key> >
00044     class multiset
00045     : public _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator>,
00046       public __gnu_debug::_Safe_sequence<multiset<_Key, _Compare, _Allocator> >
00047     {
00048       typedef _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator> _Base;
00049 
00050       typedef typename _Base::const_iterator _Base_const_iterator;
00051       typedef typename _Base::iterator _Base_iterator;
00052       typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal;
00053     public:
00054       // types:
00055       typedef _Key                   key_type;
00056       typedef _Key                   value_type;
00057       typedef _Compare                   key_compare;
00058       typedef _Compare                   value_compare;
00059       typedef _Allocator                 allocator_type;
00060       typedef typename _Base::reference              reference;
00061       typedef typename _Base::const_reference        const_reference;
00062 
00063       typedef __gnu_debug::_Safe_iterator<_Base_iterator, multiset>
00064       iterator;
00065       typedef __gnu_debug::_Safe_iterator<_Base_const_iterator,
00066                       multiset> const_iterator;
00067 
00068       typedef typename _Base::size_type              size_type;
00069       typedef typename _Base::difference_type        difference_type;
00070       typedef typename _Base::pointer                pointer;
00071       typedef typename _Base::const_pointer          const_pointer;
00072       typedef std::reverse_iterator<iterator>        reverse_iterator;
00073       typedef std::reverse_iterator<const_iterator>  const_reverse_iterator;
00074 
00075       // 23.3.3.1 construct/copy/destroy:
00076       explicit multiset(const _Compare& __comp = _Compare(),
00077             const _Allocator& __a = _Allocator())
00078       : _Base(__comp, __a) { }
00079 
00080       template<typename _InputIterator>
00081         multiset(_InputIterator __first, _InputIterator __last,
00082          const _Compare& __comp = _Compare(),
00083          const _Allocator& __a = _Allocator())
00084     : _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first,
00085                                      __last)),
00086         __gnu_debug::__base(__last),
00087         __comp, __a) { }
00088 
00089       multiset(const multiset& __x)
00090       : _Base(__x) { }
00091 
00092       multiset(const _Base& __x)
00093       : _Base(__x) { }
00094 
00095 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00096       multiset(multiset&& __x)
00097       noexcept(is_nothrow_copy_constructible<_Compare>::value)
00098       : _Base(std::move(__x))
00099       { this->_M_swap(__x); }
00100 
00101       multiset(initializer_list<value_type> __l,
00102            const _Compare& __comp = _Compare(),
00103            const allocator_type& __a = allocator_type())
00104       : _Base(__l, __comp, __a) { }
00105 #endif
00106 
00107       ~multiset() _GLIBCXX_NOEXCEPT { }
00108 
00109       multiset&
00110       operator=(const multiset& __x)
00111       {
00112     *static_cast<_Base*>(this) = __x;
00113     this->_M_invalidate_all();
00114     return *this;
00115       }
00116 
00117 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00118       multiset&
00119       operator=(multiset&& __x)
00120       {
00121     // NB: DR 1204.
00122     // NB: DR 675.
00123     clear();
00124     swap(__x);
00125     return *this;
00126       }
00127 
00128       multiset&
00129       operator=(initializer_list<value_type> __l)
00130       {
00131     this->clear();
00132     this->insert(__l);
00133     return *this;
00134       }
00135 #endif
00136 
00137       using _Base::get_allocator;
00138 
00139       // iterators:
00140       iterator
00141       begin() _GLIBCXX_NOEXCEPT
00142       { return iterator(_Base::begin(), this); }
00143 
00144       const_iterator
00145       begin() const _GLIBCXX_NOEXCEPT
00146       { return const_iterator(_Base::begin(), this); }
00147 
00148       iterator
00149       end() _GLIBCXX_NOEXCEPT
00150       { return iterator(_Base::end(), this); }
00151 
00152       const_iterator
00153       end() const _GLIBCXX_NOEXCEPT
00154       { return const_iterator(_Base::end(), this); }
00155 
00156       reverse_iterator
00157       rbegin() _GLIBCXX_NOEXCEPT
00158       { return reverse_iterator(end()); }
00159 
00160       const_reverse_iterator
00161       rbegin() const _GLIBCXX_NOEXCEPT
00162       { return const_reverse_iterator(end()); }
00163 
00164       reverse_iterator
00165       rend() _GLIBCXX_NOEXCEPT
00166       { return reverse_iterator(begin()); }
00167 
00168       const_reverse_iterator
00169       rend() const _GLIBCXX_NOEXCEPT
00170       { return const_reverse_iterator(begin()); }
00171 
00172 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00173       const_iterator
00174       cbegin() const noexcept
00175       { return const_iterator(_Base::begin(), this); }
00176 
00177       const_iterator
00178       cend() const noexcept
00179       { return const_iterator(_Base::end(), this); }
00180 
00181       const_reverse_iterator
00182       crbegin() const noexcept
00183       { return const_reverse_iterator(end()); }
00184 
00185       const_reverse_iterator
00186       crend() const noexcept
00187       { return const_reverse_iterator(begin()); }
00188 #endif
00189 
00190       // capacity:
00191       using _Base::empty;
00192       using _Base::size;
00193       using _Base::max_size;
00194 
00195       // modifiers:
00196       iterator
00197       insert(const value_type& __x)
00198       { return iterator(_Base::insert(__x), this); }
00199 
00200 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00201       iterator
00202       insert(value_type&& __x)
00203       { return iterator(_Base::insert(std::move(__x)), this); }
00204 #endif
00205 
00206       iterator
00207       insert(const_iterator __position, const value_type& __x)
00208       {
00209     __glibcxx_check_insert(__position);
00210     return iterator(_Base::insert(__position.base(), __x), this);
00211       }
00212 
00213 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00214       iterator
00215       insert(const_iterator __position, value_type&& __x)
00216       {
00217     __glibcxx_check_insert(__position);
00218     return iterator(_Base::insert(__position.base(), std::move(__x)),
00219             this);
00220       }
00221 #endif
00222 
00223       template<typename _InputIterator>
00224     void
00225     insert(_InputIterator __first, _InputIterator __last)
00226     {
00227       __glibcxx_check_valid_range(__first, __last);
00228       _Base::insert(__gnu_debug::__base(__first),
00229             __gnu_debug::__base(__last));
00230     }
00231 
00232 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00233       void
00234       insert(initializer_list<value_type> __l)
00235       { _Base::insert(__l); }
00236 #endif
00237 
00238 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00239       iterator
00240       erase(const_iterator __position)
00241       {
00242     __glibcxx_check_erase(__position);
00243     this->_M_invalidate_if(_Equal(__position.base()));
00244     return iterator(_Base::erase(__position.base()), this);
00245       }
00246 #else
00247       void
00248       erase(iterator __position)
00249       {
00250     __glibcxx_check_erase(__position);
00251     this->_M_invalidate_if(_Equal(__position.base()));
00252     _Base::erase(__position.base());
00253       }
00254 #endif
00255 
00256       size_type
00257       erase(const key_type& __x)
00258       {
00259     std::pair<_Base_iterator, _Base_iterator> __victims =
00260       _Base::equal_range(__x);
00261     size_type __count = 0;
00262     _Base_iterator __victim = __victims.first;
00263     while (__victim != __victims.second)
00264       {
00265         this->_M_invalidate_if(_Equal(__victim));
00266         _Base::erase(__victim++);
00267         ++__count;
00268       }
00269     return __count;
00270       }
00271 
00272 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00273       iterator
00274       erase(const_iterator __first, const_iterator __last)
00275       {
00276     // _GLIBCXX_RESOLVE_LIB_DEFECTS
00277     // 151. can't currently clear() empty container
00278     __glibcxx_check_erase_range(__first, __last);
00279     for (_Base_const_iterator __victim = __first.base();
00280          __victim != __last.base(); ++__victim)
00281       {
00282         _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(),
00283                   _M_message(__gnu_debug::__msg_valid_range)
00284                   ._M_iterator(__first, "first")
00285                   ._M_iterator(__last, "last"));
00286         this->_M_invalidate_if(_Equal(__victim));
00287       }
00288     return iterator(_Base::erase(__first.base(), __last.base()), this);
00289       }
00290 #else
00291       void
00292       erase(iterator __first, iterator __last)
00293       {
00294     // _GLIBCXX_RESOLVE_LIB_DEFECTS
00295     // 151. can't currently clear() empty container
00296     __glibcxx_check_erase_range(__first, __last);
00297     for (_Base_iterator __victim = __first.base();
00298          __victim != __last.base(); ++__victim)
00299       {
00300         _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(),
00301                   _M_message(__gnu_debug::__msg_valid_range)
00302                   ._M_iterator(__first, "first")
00303                   ._M_iterator(__last, "last"));
00304         this->_M_invalidate_if(_Equal(__victim));
00305       }
00306     _Base::erase(__first.base(), __last.base());
00307       }
00308 #endif
00309 
00310       void
00311       swap(multiset& __x)
00312       {
00313     _Base::swap(__x);
00314     this->_M_swap(__x);
00315       }
00316 
00317       void
00318       clear() _GLIBCXX_NOEXCEPT
00319       {
00320     this->_M_invalidate_all();
00321     _Base::clear();
00322       }
00323 
00324       // observers:
00325       using _Base::key_comp;
00326       using _Base::value_comp;
00327 
00328       // multiset operations:
00329       iterator
00330       find(const key_type& __x)
00331       { return iterator(_Base::find(__x), this); }
00332 
00333       // _GLIBCXX_RESOLVE_LIB_DEFECTS
00334       // 214. set::find() missing const overload
00335       const_iterator
00336       find(const key_type& __x) const
00337       { return const_iterator(_Base::find(__x), this); }
00338 
00339       using _Base::count;
00340 
00341       iterator
00342       lower_bound(const key_type& __x)
00343       { return iterator(_Base::lower_bound(__x), this); }
00344 
00345       // _GLIBCXX_RESOLVE_LIB_DEFECTS
00346       // 214. set::find() missing const overload
00347       const_iterator
00348       lower_bound(const key_type& __x) const
00349       { return const_iterator(_Base::lower_bound(__x), this); }
00350 
00351       iterator
00352       upper_bound(const key_type& __x)
00353       { return iterator(_Base::upper_bound(__x), this); }
00354 
00355       // _GLIBCXX_RESOLVE_LIB_DEFECTS
00356       // 214. set::find() missing const overload
00357       const_iterator
00358       upper_bound(const key_type& __x) const
00359       { return const_iterator(_Base::upper_bound(__x), this); }
00360 
00361       std::pair<iterator,iterator>
00362       equal_range(const key_type& __x)
00363       {
00364     std::pair<_Base_iterator, _Base_iterator> __res =
00365       _Base::equal_range(__x);
00366     return std::make_pair(iterator(__res.first, this),
00367                   iterator(__res.second, this));
00368       }
00369 
00370       // _GLIBCXX_RESOLVE_LIB_DEFECTS
00371       // 214. set::find() missing const overload
00372       std::pair<const_iterator,const_iterator>
00373       equal_range(const key_type& __x) const
00374       {
00375     std::pair<_Base_const_iterator, _Base_const_iterator> __res =
00376       _Base::equal_range(__x);
00377     return std::make_pair(const_iterator(__res.first, this),
00378                   const_iterator(__res.second, this));
00379       }
00380 
00381       _Base&
00382       _M_base() _GLIBCXX_NOEXCEPT       { return *this; }
00383 
00384       const _Base&
00385       _M_base() const _GLIBCXX_NOEXCEPT { return *this; }
00386 
00387     private:
00388       void
00389       _M_invalidate_all()
00390       {
00391     typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
00392     this->_M_invalidate_if(_Not_equal(_Base::end()));
00393       }
00394     };
00395 
00396   template<typename _Key, typename _Compare, typename _Allocator>
00397     inline bool
00398     operator==(const multiset<_Key, _Compare, _Allocator>& __lhs,
00399            const multiset<_Key, _Compare, _Allocator>& __rhs)
00400     { return __lhs._M_base() == __rhs._M_base(); }
00401 
00402   template<typename _Key, typename _Compare, typename _Allocator>
00403     inline bool
00404     operator!=(const multiset<_Key, _Compare, _Allocator>& __lhs,
00405            const multiset<_Key, _Compare, _Allocator>& __rhs)
00406     { return __lhs._M_base() != __rhs._M_base(); }
00407 
00408   template<typename _Key, typename _Compare, typename _Allocator>
00409     inline bool
00410     operator<(const multiset<_Key, _Compare, _Allocator>& __lhs,
00411           const multiset<_Key, _Compare, _Allocator>& __rhs)
00412     { return __lhs._M_base() < __rhs._M_base(); }
00413 
00414   template<typename _Key, typename _Compare, typename _Allocator>
00415     inline bool
00416     operator<=(const multiset<_Key, _Compare, _Allocator>& __lhs,
00417            const multiset<_Key, _Compare, _Allocator>& __rhs)
00418     { return __lhs._M_base() <= __rhs._M_base(); }
00419 
00420   template<typename _Key, typename _Compare, typename _Allocator>
00421     inline bool
00422     operator>=(const multiset<_Key, _Compare, _Allocator>& __lhs,
00423            const multiset<_Key, _Compare, _Allocator>& __rhs)
00424     { return __lhs._M_base() >= __rhs._M_base(); }
00425 
00426   template<typename _Key, typename _Compare, typename _Allocator>
00427     inline bool
00428     operator>(const multiset<_Key, _Compare, _Allocator>& __lhs,
00429           const multiset<_Key, _Compare, _Allocator>& __rhs)
00430     { return __lhs._M_base() > __rhs._M_base(); }
00431 
00432   template<typename _Key, typename _Compare, typename _Allocator>
00433     void
00434     swap(multiset<_Key, _Compare, _Allocator>& __x,
00435      multiset<_Key, _Compare, _Allocator>& __y)
00436     { return __x.swap(__y); }
00437 
00438 } // namespace __debug
00439 } // namespace std
00440 
00441 #endif