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      1 // Profiling multiset implementation -*- C++ -*-
      2 
      3 // Copyright (C) 2009-2013 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 #if __cplusplus >= 201103L
     72       template<typename _InputIterator,
     73 	       typename = std::_RequireInputIter<_InputIterator>>
     74 #else
     75       template<typename _InputIterator>
     76 #endif
     77         multiset(_InputIterator __first, _InputIterator __last,
     78 		 const _Compare& __comp = _Compare(),
     79 		 const _Allocator& __a = _Allocator())
     80 	: _Base(__first, __last, __comp, __a) { }
     81 
     82       multiset(const multiset& __x)
     83       : _Base(__x) { }
     84 
     85       multiset(const _Base& __x)
     86       : _Base(__x) { }
     87 
     88 #if __cplusplus >= 201103L
     89       multiset(multiset&& __x)
     90       noexcept(is_nothrow_copy_constructible<_Compare>::value)
     91       : _Base(std::move(__x))
     92       { }
     93 
     94       multiset(initializer_list<value_type> __l,
     95 	       const _Compare& __comp = _Compare(),
     96 	       const allocator_type& __a = allocator_type())
     97       : _Base(__l, __comp, __a) { }
     98 #endif
     99 
    100       ~multiset() _GLIBCXX_NOEXCEPT { }
    101 
    102       multiset&
    103       operator=(const multiset& __x)
    104       {
    105 	*static_cast<_Base*>(this) = __x;
    106 	return *this;
    107       }
    108 
    109 #if __cplusplus >= 201103L
    110       multiset&
    111       operator=(multiset&& __x)
    112       {
    113 	// NB: DR 1204.
    114 	// NB: DR 675.
    115 	this->clear();
    116 	this->swap(__x);
    117 	return *this;
    118       }
    119 
    120       multiset&
    121       operator=(initializer_list<value_type> __l)
    122       {
    123 	this->clear();
    124 	this->insert(__l);
    125 	return *this;
    126       }
    127 #endif
    128 
    129       using _Base::get_allocator;
    130 
    131       // iterators:
    132       iterator
    133       begin() _GLIBCXX_NOEXCEPT
    134       { return iterator(_Base::begin()); }
    135 
    136       const_iterator
    137       begin() const _GLIBCXX_NOEXCEPT
    138       { return const_iterator(_Base::begin()); }
    139 
    140       iterator
    141       end() _GLIBCXX_NOEXCEPT
    142       { return iterator(_Base::end()); }
    143 
    144       const_iterator
    145       end() const _GLIBCXX_NOEXCEPT
    146       { return const_iterator(_Base::end()); }
    147 
    148       reverse_iterator
    149       rbegin() _GLIBCXX_NOEXCEPT
    150       { return reverse_iterator(end()); }
    151 
    152       const_reverse_iterator
    153       rbegin() const _GLIBCXX_NOEXCEPT
    154       { return const_reverse_iterator(end()); }
    155 
    156       reverse_iterator
    157       rend() _GLIBCXX_NOEXCEPT
    158       { return reverse_iterator(begin()); }
    159 
    160       const_reverse_iterator
    161       rend() const _GLIBCXX_NOEXCEPT
    162       { return const_reverse_iterator(begin()); }
    163 
    164 #if __cplusplus >= 201103L
    165       const_iterator
    166       cbegin() const noexcept
    167       { return const_iterator(_Base::begin()); }
    168 
    169       const_iterator
    170       cend() const noexcept
    171       { return const_iterator(_Base::end()); }
    172 
    173       const_reverse_iterator
    174       crbegin() const noexcept
    175       { return const_reverse_iterator(end()); }
    176 
    177       const_reverse_iterator
    178       crend() const noexcept
    179       { return const_reverse_iterator(begin()); }
    180 #endif
    181 
    182       // capacity:
    183       using _Base::empty;
    184       using _Base::size;
    185       using _Base::max_size;
    186 
    187       // modifiers:
    188 #if __cplusplus >= 201103L
    189       template<typename... _Args>
    190 	iterator
    191 	emplace(_Args&&... __args)
    192 	{ return iterator(_Base::emplace(std::forward<_Args>(__args)...)); }
    193 
    194       template<typename... _Args>
    195 	iterator
    196 	emplace_hint(const_iterator __pos, _Args&&... __args)
    197 	{
    198 	  return iterator(_Base::emplace_hint(__pos,
    199 					      std::forward<_Args>(__args)...));
    200 	}
    201 #endif
    202 
    203       iterator
    204       insert(const value_type& __x)
    205       { return iterator(_Base::insert(__x)); }
    206 
    207 #if __cplusplus >= 201103L
    208       iterator
    209       insert(value_type&& __x)
    210       { return iterator(_Base::insert(std::move(__x))); }
    211 #endif
    212 
    213       iterator
    214       insert(const_iterator __position, const value_type& __x)
    215       { return iterator(_Base::insert(__position, __x)); }
    216 
    217 #if __cplusplus >= 201103L
    218       iterator
    219       insert(const_iterator __position, value_type&& __x)
    220       { return iterator(_Base::insert(__position, std::move(__x))); }
    221 #endif
    222 
    223 #if __cplusplus >= 201103L
    224       template<typename _InputIterator,
    225 	       typename = std::_RequireInputIter<_InputIterator>>
    226 #else
    227       template<typename _InputIterator>
    228 #endif
    229         void
    230         insert(_InputIterator __first, _InputIterator __last)
    231         { _Base::insert(__first, __last); }
    232 
    233 #if __cplusplus >= 201103L
    234       void
    235       insert(initializer_list<value_type> __l)
    236       { _Base::insert(__l); }
    237 #endif
    238 
    239 #if __cplusplus >= 201103L
    240       iterator
    241       erase(const_iterator __position)
    242       { return iterator(_Base::erase(__position)); }
    243 #else
    244       void
    245       erase(iterator __position)
    246       { _Base::erase(__position); }
    247 #endif
    248 
    249       size_type
    250       erase(const key_type& __x)
    251       {
    252 	std::pair<iterator, iterator> __victims = this->equal_range(__x);
    253 	size_type __count = 0;
    254 	while (__victims.first != __victims.second)
    255 	{
    256 	  iterator __victim = __victims.first++;
    257 	  _Base::erase(__victim);
    258 	  ++__count;
    259 	}
    260 	return __count;
    261       }
    262 
    263 #if __cplusplus >= 201103L
    264       iterator
    265       erase(const_iterator __first, const_iterator __last)
    266       { return iterator(_Base::erase(__first, __last)); }
    267 #else
    268       void
    269       erase(iterator __first, iterator __last)
    270       { _Base::erase(__first, __last); }
    271 #endif
    272 
    273       void
    274       swap(multiset& __x)
    275       { _Base::swap(__x); }
    276 
    277       void
    278       clear() _GLIBCXX_NOEXCEPT
    279       { this->erase(begin(), end()); }
    280 
    281       // observers:
    282       using _Base::key_comp;
    283       using _Base::value_comp;
    284 
    285       // multiset operations:
    286       iterator
    287       find(const key_type& __x)
    288       { return iterator(_Base::find(__x)); }
    289 
    290       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    291       // 214. set::find() missing const overload
    292       const_iterator
    293       find(const key_type& __x) const
    294       { return const_iterator(_Base::find(__x)); }
    295 
    296       using _Base::count;
    297 
    298       iterator
    299       lower_bound(const key_type& __x)
    300       { return iterator(_Base::lower_bound(__x)); }
    301 
    302       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    303       // 214. set::find() missing const overload
    304       const_iterator
    305       lower_bound(const key_type& __x) const
    306       { return const_iterator(_Base::lower_bound(__x)); }
    307 
    308       iterator
    309       upper_bound(const key_type& __x)
    310       { return iterator(_Base::upper_bound(__x)); }
    311 
    312       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    313       // 214. set::find() missing const overload
    314       const_iterator
    315       upper_bound(const key_type& __x) const
    316       { return const_iterator(_Base::upper_bound(__x)); }
    317 
    318       std::pair<iterator,iterator>
    319       equal_range(const key_type& __x)
    320       {
    321 	typedef typename _Base::iterator _Base_iterator;
    322 	std::pair<_Base_iterator, _Base_iterator> __res =
    323         _Base::equal_range(__x);
    324 	return std::make_pair(iterator(__res.first),
    325 			      iterator(__res.second));
    326       }
    327 
    328       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    329       // 214. set::find() missing const overload
    330       std::pair<const_iterator,const_iterator>
    331       equal_range(const key_type& __x) const
    332       {
    333 	typedef typename _Base::const_iterator _Base_iterator;
    334 	std::pair<_Base_iterator, _Base_iterator> __res =
    335         _Base::equal_range(__x);
    336 	return std::make_pair(const_iterator(__res.first),
    337 			      const_iterator(__res.second));
    338       }
    339 
    340       _Base&
    341       _M_base() _GLIBCXX_NOEXCEPT       { return *this; }
    342 
    343       const _Base&
    344       _M_base() const _GLIBCXX_NOEXCEPT { return *this; }
    345 
    346     };
    347 
    348   template<typename _Key, typename _Compare, typename _Allocator>
    349     inline bool
    350     operator==(const multiset<_Key, _Compare, _Allocator>& __lhs,
    351 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    352     { return __lhs._M_base() == __rhs._M_base(); }
    353 
    354   template<typename _Key, typename _Compare, typename _Allocator>
    355     inline bool
    356     operator!=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    357 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    358     { return __lhs._M_base() != __rhs._M_base(); }
    359 
    360   template<typename _Key, typename _Compare, typename _Allocator>
    361     inline bool
    362     operator<(const multiset<_Key, _Compare, _Allocator>& __lhs,
    363 	      const multiset<_Key, _Compare, _Allocator>& __rhs)
    364     { return __lhs._M_base() < __rhs._M_base(); }
    365 
    366   template<typename _Key, typename _Compare, typename _Allocator>
    367     inline bool
    368     operator<=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    369 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    370     { return __lhs._M_base() <= __rhs._M_base(); }
    371 
    372   template<typename _Key, typename _Compare, typename _Allocator>
    373     inline bool
    374     operator>=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    375 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    376     { return __lhs._M_base() >= __rhs._M_base(); }
    377 
    378   template<typename _Key, typename _Compare, typename _Allocator>
    379     inline bool
    380     operator>(const multiset<_Key, _Compare, _Allocator>& __lhs,
    381 	      const multiset<_Key, _Compare, _Allocator>& __rhs)
    382     { return __lhs._M_base() > __rhs._M_base(); }
    383 
    384   template<typename _Key, typename _Compare, typename _Allocator>
    385     void
    386     swap(multiset<_Key, _Compare, _Allocator>& __x,
    387 	 multiset<_Key, _Compare, _Allocator>& __y)
    388     { return __x.swap(__y); }
    389 
    390 } // namespace __profile
    391 } // namespace std
    392 
    393 #endif
    394