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      1 // Profiling multiset implementation -*- C++ -*-
      2 
      3 // Copyright (C) 2009, 2010, 2011 Free Software Foundation, Inc.
      4 //
      5 // This file is part of the GNU ISO C++ Library.  This library is free
      6 // software; you can redistribute it and/or modify it under the
      7 // terms of the GNU General Public License as published by the
      8 // Free Software Foundation; either version 3, or (at your option)
      9 // any later version.
     10 
     11 // This library is distributed in the hope that it will be useful,
     12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
     13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14 // GNU General Public License for more details.
     15 
     16 // Under Section 7 of GPL version 3, you are granted additional
     17 // permissions described in the GCC Runtime Library Exception, version
     18 // 3.1, as published by the Free Software Foundation.
     19 
     20 // You should have received a copy of the GNU General Public License and
     21 // a copy of the GCC Runtime Library Exception along with this program;
     22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     23 // <http://www.gnu.org/licenses/>.
     24 
     25 /** @file profile/multiset.h
     26  *  This file is a GNU profile extension to the Standard C++ Library.
     27  */
     28 
     29 #ifndef _GLIBCXX_PROFILE_MULTISET_H
     30 #define _GLIBCXX_PROFILE_MULTISET_H 1
     31 
     32 #include <utility>
     33 
     34 namespace std _GLIBCXX_VISIBILITY(default)
     35 {
     36 namespace __profile
     37 {
     38   /// Class std::multiset wrapper with performance instrumentation.
     39   template<typename _Key, typename _Compare = std::less<_Key>,
     40 	   typename _Allocator = std::allocator<_Key> >
     41     class multiset
     42     : public _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator>
     43     {
     44       typedef _GLIBCXX_STD_C::multiset<_Key, _Compare, _Allocator> _Base;
     45 
     46     public:
     47       // types:
     48       typedef _Key				     key_type;
     49       typedef _Key				     value_type;
     50       typedef _Compare				     key_compare;
     51       typedef _Compare				     value_compare;
     52       typedef _Allocator			     allocator_type;
     53       typedef typename _Base::reference	             reference;
     54       typedef typename _Base::const_reference        const_reference;
     55 
     56       typedef typename _Base::iterator               iterator;
     57       typedef typename _Base::const_iterator         const_iterator;
     58       typedef typename _Base::reverse_iterator       reverse_iterator;
     59       typedef typename _Base::const_reverse_iterator const_reverse_iterator;
     60 
     61       typedef typename _Base::size_type              size_type;
     62       typedef typename _Base::difference_type        difference_type;
     63       typedef typename _Base::pointer                pointer;
     64       typedef typename _Base::const_pointer          const_pointer;
     65 
     66       // 23.3.3.1 construct/copy/destroy:
     67       explicit multiset(const _Compare& __comp = _Compare(),
     68 			const _Allocator& __a = _Allocator())
     69       : _Base(__comp, __a) { }
     70 
     71       template<typename _InputIterator>
     72         multiset(_InputIterator __first, _InputIterator __last,
     73 		 const _Compare& __comp = _Compare(),
     74 		 const _Allocator& __a = _Allocator())
     75 	: _Base(__first, __last, __comp, __a) { }
     76 
     77       multiset(const multiset& __x)
     78       : _Base(__x) { }
     79 
     80       multiset(const _Base& __x)
     81       : _Base(__x) { }
     82 
     83 #ifdef __GXX_EXPERIMENTAL_CXX0X__
     84       multiset(multiset&& __x)
     85       noexcept(is_nothrow_copy_constructible<_Compare>::value)
     86       : _Base(std::move(__x))
     87       { }
     88 
     89       multiset(initializer_list<value_type> __l,
     90 	       const _Compare& __comp = _Compare(),
     91 	       const allocator_type& __a = allocator_type())
     92       : _Base(__l, __comp, __a) { }
     93 #endif
     94 
     95       ~multiset() _GLIBCXX_NOEXCEPT { }
     96 
     97       multiset&
     98       operator=(const multiset& __x)
     99       {
    100 	*static_cast<_Base*>(this) = __x;
    101 	return *this;
    102       }
    103 
    104 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    105       multiset&
    106       operator=(multiset&& __x)
    107       {
    108 	// NB: DR 1204.
    109 	// NB: DR 675.
    110 	this->clear();
    111 	this->swap(__x);
    112 	return *this;
    113       }
    114 
    115       multiset&
    116       operator=(initializer_list<value_type> __l)
    117       {
    118 	this->clear();
    119 	this->insert(__l);
    120 	return *this;
    121       }
    122 #endif
    123 
    124       using _Base::get_allocator;
    125 
    126       // iterators:
    127       iterator
    128       begin() _GLIBCXX_NOEXCEPT
    129       { return iterator(_Base::begin()); }
    130 
    131       const_iterator
    132       begin() const _GLIBCXX_NOEXCEPT
    133       { return const_iterator(_Base::begin()); }
    134 
    135       iterator
    136       end() _GLIBCXX_NOEXCEPT
    137       { return iterator(_Base::end()); }
    138 
    139       const_iterator
    140       end() const _GLIBCXX_NOEXCEPT
    141       { return const_iterator(_Base::end()); }
    142 
    143       reverse_iterator
    144       rbegin() _GLIBCXX_NOEXCEPT
    145       { return reverse_iterator(end()); }
    146 
    147       const_reverse_iterator
    148       rbegin() const _GLIBCXX_NOEXCEPT
    149       { return const_reverse_iterator(end()); }
    150 
    151       reverse_iterator
    152       rend() _GLIBCXX_NOEXCEPT
    153       { return reverse_iterator(begin()); }
    154 
    155       const_reverse_iterator
    156       rend() const _GLIBCXX_NOEXCEPT
    157       { return const_reverse_iterator(begin()); }
    158 
    159 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    160       const_iterator
    161       cbegin() const noexcept
    162       { return const_iterator(_Base::begin()); }
    163 
    164       const_iterator
    165       cend() const noexcept
    166       { return const_iterator(_Base::end()); }
    167 
    168       const_reverse_iterator
    169       crbegin() const noexcept
    170       { return const_reverse_iterator(end()); }
    171 
    172       const_reverse_iterator
    173       crend() const noexcept
    174       { return const_reverse_iterator(begin()); }
    175 #endif
    176 
    177       // capacity:
    178       using _Base::empty;
    179       using _Base::size;
    180       using _Base::max_size;
    181 
    182       // modifiers:
    183       iterator
    184       insert(const value_type& __x)
    185       { return iterator(_Base::insert(__x)); }
    186 
    187 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    188       iterator
    189       insert(value_type&& __x)
    190       { return iterator(_Base::insert(std::move(__x))); }
    191 #endif
    192 
    193       iterator
    194       insert(const_iterator __position, const value_type& __x)
    195       { return iterator(_Base::insert(__position, __x)); }
    196 
    197 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    198       iterator
    199       insert(const_iterator __position, value_type&& __x)
    200       { return iterator(_Base::insert(__position, std::move(__x))); }
    201 #endif
    202 
    203       template<typename _InputIterator>
    204         void
    205         insert(_InputIterator __first, _InputIterator __last)
    206         { _Base::insert(__first, __last); }
    207 
    208 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    209       void
    210       insert(initializer_list<value_type> __l)
    211       { _Base::insert(__l); }
    212 #endif
    213 
    214 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    215       iterator
    216       erase(const_iterator __position)
    217       { return iterator(_Base::erase(__position)); }
    218 #else
    219       void
    220       erase(iterator __position)
    221       { _Base::erase(__position); }
    222 #endif
    223 
    224       size_type
    225       erase(const key_type& __x)
    226       {
    227 	std::pair<iterator, iterator> __victims = this->equal_range(__x);
    228 	size_type __count = 0;
    229 	while (__victims.first != __victims.second)
    230 	{
    231 	  iterator __victim = __victims.first++;
    232 	  _Base::erase(__victim);
    233 	  ++__count;
    234 	}
    235 	return __count;
    236       }
    237 
    238 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    239       iterator
    240       erase(const_iterator __first, const_iterator __last)
    241       { return iterator(_Base::erase(__first, __last)); }
    242 #else
    243       void
    244       erase(iterator __first, iterator __last)
    245       { _Base::erase(__first, __last); }
    246 #endif
    247 
    248       void
    249       swap(multiset& __x)
    250       { _Base::swap(__x); }
    251 
    252       void
    253       clear() _GLIBCXX_NOEXCEPT
    254       { this->erase(begin(), end()); }
    255 
    256       // observers:
    257       using _Base::key_comp;
    258       using _Base::value_comp;
    259 
    260       // multiset operations:
    261       iterator
    262       find(const key_type& __x)
    263       { return iterator(_Base::find(__x)); }
    264 
    265       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    266       // 214. set::find() missing const overload
    267       const_iterator
    268       find(const key_type& __x) const
    269       { return const_iterator(_Base::find(__x)); }
    270 
    271       using _Base::count;
    272 
    273       iterator
    274       lower_bound(const key_type& __x)
    275       { return iterator(_Base::lower_bound(__x)); }
    276 
    277       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    278       // 214. set::find() missing const overload
    279       const_iterator
    280       lower_bound(const key_type& __x) const
    281       { return const_iterator(_Base::lower_bound(__x)); }
    282 
    283       iterator
    284       upper_bound(const key_type& __x)
    285       { return iterator(_Base::upper_bound(__x)); }
    286 
    287       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    288       // 214. set::find() missing const overload
    289       const_iterator
    290       upper_bound(const key_type& __x) const
    291       { return const_iterator(_Base::upper_bound(__x)); }
    292 
    293       std::pair<iterator,iterator>
    294       equal_range(const key_type& __x)
    295       {
    296 	typedef typename _Base::iterator _Base_iterator;
    297 	std::pair<_Base_iterator, _Base_iterator> __res =
    298         _Base::equal_range(__x);
    299 	return std::make_pair(iterator(__res.first),
    300 			      iterator(__res.second));
    301       }
    302 
    303       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    304       // 214. set::find() missing const overload
    305       std::pair<const_iterator,const_iterator>
    306       equal_range(const key_type& __x) const
    307       {
    308 	typedef typename _Base::const_iterator _Base_iterator;
    309 	std::pair<_Base_iterator, _Base_iterator> __res =
    310         _Base::equal_range(__x);
    311 	return std::make_pair(const_iterator(__res.first),
    312 			      const_iterator(__res.second));
    313       }
    314 
    315       _Base&
    316       _M_base() _GLIBCXX_NOEXCEPT       { return *this; }
    317 
    318       const _Base&
    319       _M_base() const _GLIBCXX_NOEXCEPT { return *this; }
    320 
    321     };
    322 
    323   template<typename _Key, typename _Compare, typename _Allocator>
    324     inline bool
    325     operator==(const multiset<_Key, _Compare, _Allocator>& __lhs,
    326 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    327     { return __lhs._M_base() == __rhs._M_base(); }
    328 
    329   template<typename _Key, typename _Compare, typename _Allocator>
    330     inline bool
    331     operator!=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    332 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    333     { return __lhs._M_base() != __rhs._M_base(); }
    334 
    335   template<typename _Key, typename _Compare, typename _Allocator>
    336     inline bool
    337     operator<(const multiset<_Key, _Compare, _Allocator>& __lhs,
    338 	      const multiset<_Key, _Compare, _Allocator>& __rhs)
    339     { return __lhs._M_base() < __rhs._M_base(); }
    340 
    341   template<typename _Key, typename _Compare, typename _Allocator>
    342     inline bool
    343     operator<=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    344 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    345     { return __lhs._M_base() <= __rhs._M_base(); }
    346 
    347   template<typename _Key, typename _Compare, typename _Allocator>
    348     inline bool
    349     operator>=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    350 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    351     { return __lhs._M_base() >= __rhs._M_base(); }
    352 
    353   template<typename _Key, typename _Compare, typename _Allocator>
    354     inline bool
    355     operator>(const multiset<_Key, _Compare, _Allocator>& __lhs,
    356 	      const multiset<_Key, _Compare, _Allocator>& __rhs)
    357     { return __lhs._M_base() > __rhs._M_base(); }
    358 
    359   template<typename _Key, typename _Compare, typename _Allocator>
    360     void
    361     swap(multiset<_Key, _Compare, _Allocator>& __x,
    362 	 multiset<_Key, _Compare, _Allocator>& __y)
    363     { return __x.swap(__y); }
    364 
    365 } // namespace __profile
    366 } // namespace std
    367 
    368 #endif
    369