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      1 // Profiling multiset implementation -*- C++ -*-
      2 
      3 // Copyright (C) 2009-2014 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 #if __cplusplus >= 201103L
     47       typedef __gnu_cxx::__alloc_traits<_Allocator> _Alloc_traits;
     48 #endif
     49 
     50     public:
     51       // types:
     52       typedef _Key				     key_type;
     53       typedef _Key				     value_type;
     54       typedef _Compare				     key_compare;
     55       typedef _Compare				     value_compare;
     56       typedef _Allocator			     allocator_type;
     57       typedef typename _Base::reference	             reference;
     58       typedef typename _Base::const_reference        const_reference;
     59 
     60       typedef typename _Base::iterator               iterator;
     61       typedef typename _Base::const_iterator         const_iterator;
     62       typedef typename _Base::reverse_iterator       reverse_iterator;
     63       typedef typename _Base::const_reverse_iterator const_reverse_iterator;
     64 
     65       typedef typename _Base::size_type              size_type;
     66       typedef typename _Base::difference_type        difference_type;
     67       typedef typename _Base::pointer                pointer;
     68       typedef typename _Base::const_pointer          const_pointer;
     69 
     70       // 23.3.3.1 construct/copy/destroy:
     71 
     72       multiset()
     73       : _Base() { }
     74 
     75       explicit multiset(const _Compare& __comp,
     76 			const _Allocator& __a = _Allocator())
     77       : _Base(__comp, __a) { }
     78 
     79 #if __cplusplus >= 201103L
     80       template<typename _InputIterator,
     81 	       typename = std::_RequireInputIter<_InputIterator>>
     82 #else
     83       template<typename _InputIterator>
     84 #endif
     85         multiset(_InputIterator __first, _InputIterator __last,
     86 		 const _Compare& __comp = _Compare(),
     87 		 const _Allocator& __a = _Allocator())
     88 	: _Base(__first, __last, __comp, __a) { }
     89 
     90 #if __cplusplus < 201103L
     91       multiset(const multiset& __x)
     92       : _Base(__x) { }
     93 #else
     94       multiset(const multiset&) = default;
     95       multiset(multiset&&) = default;
     96 
     97       multiset(initializer_list<value_type> __l,
     98 	       const _Compare& __comp = _Compare(),
     99 	       const allocator_type& __a = allocator_type())
    100       : _Base(__l, __comp, __a) { }
    101 
    102       explicit
    103       multiset(const allocator_type& __a)
    104 	: _Base(__a) { }
    105 
    106       multiset(const multiset& __x, const allocator_type& __a)
    107       : _Base(__x, __a) { }
    108 
    109       multiset(multiset&& __x, const allocator_type& __a)
    110       noexcept(is_nothrow_copy_constructible<_Compare>::value
    111 	       && _Alloc_traits::_S_always_equal())
    112       : _Base(std::move(__x), __a) { }
    113 
    114       multiset(initializer_list<value_type> __l, const allocator_type& __a)
    115       : _Base(__l, __a) { }
    116 
    117       template<typename _InputIterator>
    118         multiset(_InputIterator __first, _InputIterator __last,
    119 	    const allocator_type& __a)
    120 	  : _Base(__first, __last, __a) { }
    121 #endif
    122 
    123       multiset(const _Base& __x)
    124       : _Base(__x) { }
    125 
    126       ~multiset() _GLIBCXX_NOEXCEPT { }
    127 
    128 #if __cplusplus < 201103L
    129       multiset&
    130       operator=(const multiset& __x)
    131       {
    132 	_M_base() = __x;
    133 	return *this;
    134       }
    135 #else
    136       multiset&
    137       operator=(const multiset&) = default;
    138 
    139       multiset&
    140       operator=(multiset&&) = default;
    141 
    142       multiset&
    143       operator=(initializer_list<value_type> __l)
    144       {
    145 	_M_base() = __l;
    146 	return *this;
    147       }
    148 #endif
    149 
    150       using _Base::get_allocator;
    151 
    152       // iterators:
    153       iterator
    154       begin() _GLIBCXX_NOEXCEPT
    155       { return iterator(_Base::begin()); }
    156 
    157       const_iterator
    158       begin() const _GLIBCXX_NOEXCEPT
    159       { return const_iterator(_Base::begin()); }
    160 
    161       iterator
    162       end() _GLIBCXX_NOEXCEPT
    163       { return iterator(_Base::end()); }
    164 
    165       const_iterator
    166       end() const _GLIBCXX_NOEXCEPT
    167       { return const_iterator(_Base::end()); }
    168 
    169       reverse_iterator
    170       rbegin() _GLIBCXX_NOEXCEPT
    171       { return reverse_iterator(end()); }
    172 
    173       const_reverse_iterator
    174       rbegin() const _GLIBCXX_NOEXCEPT
    175       { return const_reverse_iterator(end()); }
    176 
    177       reverse_iterator
    178       rend() _GLIBCXX_NOEXCEPT
    179       { return reverse_iterator(begin()); }
    180 
    181       const_reverse_iterator
    182       rend() const _GLIBCXX_NOEXCEPT
    183       { return const_reverse_iterator(begin()); }
    184 
    185 #if __cplusplus >= 201103L
    186       const_iterator
    187       cbegin() const noexcept
    188       { return const_iterator(_Base::begin()); }
    189 
    190       const_iterator
    191       cend() const noexcept
    192       { return const_iterator(_Base::end()); }
    193 
    194       const_reverse_iterator
    195       crbegin() const noexcept
    196       { return const_reverse_iterator(end()); }
    197 
    198       const_reverse_iterator
    199       crend() const noexcept
    200       { return const_reverse_iterator(begin()); }
    201 #endif
    202 
    203       // capacity:
    204       using _Base::empty;
    205       using _Base::size;
    206       using _Base::max_size;
    207 
    208       // modifiers:
    209 #if __cplusplus >= 201103L
    210       template<typename... _Args>
    211 	iterator
    212 	emplace(_Args&&... __args)
    213 	{ return iterator(_Base::emplace(std::forward<_Args>(__args)...)); }
    214 
    215       template<typename... _Args>
    216 	iterator
    217 	emplace_hint(const_iterator __pos, _Args&&... __args)
    218 	{
    219 	  return iterator(_Base::emplace_hint(__pos,
    220 					      std::forward<_Args>(__args)...));
    221 	}
    222 #endif
    223 
    224       iterator
    225       insert(const value_type& __x)
    226       { return iterator(_Base::insert(__x)); }
    227 
    228 #if __cplusplus >= 201103L
    229       iterator
    230       insert(value_type&& __x)
    231       { return iterator(_Base::insert(std::move(__x))); }
    232 #endif
    233 
    234       iterator
    235       insert(const_iterator __position, const value_type& __x)
    236       { return iterator(_Base::insert(__position, __x)); }
    237 
    238 #if __cplusplus >= 201103L
    239       iterator
    240       insert(const_iterator __position, value_type&& __x)
    241       { return iterator(_Base::insert(__position, std::move(__x))); }
    242 #endif
    243 
    244 #if __cplusplus >= 201103L
    245       template<typename _InputIterator,
    246 	       typename = std::_RequireInputIter<_InputIterator>>
    247 #else
    248       template<typename _InputIterator>
    249 #endif
    250         void
    251         insert(_InputIterator __first, _InputIterator __last)
    252         { _Base::insert(__first, __last); }
    253 
    254 #if __cplusplus >= 201103L
    255       void
    256       insert(initializer_list<value_type> __l)
    257       { _Base::insert(__l); }
    258 #endif
    259 
    260 #if __cplusplus >= 201103L
    261       iterator
    262       erase(const_iterator __position)
    263       { return iterator(_Base::erase(__position)); }
    264 #else
    265       void
    266       erase(iterator __position)
    267       { _Base::erase(__position); }
    268 #endif
    269 
    270       size_type
    271       erase(const key_type& __x)
    272       {
    273 	std::pair<iterator, iterator> __victims = this->equal_range(__x);
    274 	size_type __count = 0;
    275 	while (__victims.first != __victims.second)
    276 	{
    277 	  iterator __victim = __victims.first++;
    278 	  _Base::erase(__victim);
    279 	  ++__count;
    280 	}
    281 	return __count;
    282       }
    283 
    284 #if __cplusplus >= 201103L
    285       iterator
    286       erase(const_iterator __first, const_iterator __last)
    287       { return iterator(_Base::erase(__first, __last)); }
    288 #else
    289       void
    290       erase(iterator __first, iterator __last)
    291       { _Base::erase(__first, __last); }
    292 #endif
    293 
    294       void
    295       swap(multiset& __x)
    296 #if __cplusplus >= 201103L
    297       noexcept(_Alloc_traits::_S_nothrow_swap())
    298 #endif
    299       { _Base::swap(__x); }
    300 
    301       void
    302       clear() _GLIBCXX_NOEXCEPT
    303       { this->erase(begin(), end()); }
    304 
    305       // observers:
    306       using _Base::key_comp;
    307       using _Base::value_comp;
    308 
    309       // multiset operations:
    310       iterator
    311       find(const key_type& __x)
    312       { return iterator(_Base::find(__x)); }
    313 
    314       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    315       // 214. set::find() missing const overload
    316       const_iterator
    317       find(const key_type& __x) const
    318       { return const_iterator(_Base::find(__x)); }
    319 
    320       using _Base::count;
    321 
    322       iterator
    323       lower_bound(const key_type& __x)
    324       { return iterator(_Base::lower_bound(__x)); }
    325 
    326       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    327       // 214. set::find() missing const overload
    328       const_iterator
    329       lower_bound(const key_type& __x) const
    330       { return const_iterator(_Base::lower_bound(__x)); }
    331 
    332       iterator
    333       upper_bound(const key_type& __x)
    334       { return iterator(_Base::upper_bound(__x)); }
    335 
    336       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    337       // 214. set::find() missing const overload
    338       const_iterator
    339       upper_bound(const key_type& __x) const
    340       { return const_iterator(_Base::upper_bound(__x)); }
    341 
    342       std::pair<iterator,iterator>
    343       equal_range(const key_type& __x)
    344       {
    345 	typedef typename _Base::iterator _Base_iterator;
    346 	std::pair<_Base_iterator, _Base_iterator> __res =
    347         _Base::equal_range(__x);
    348 	return std::make_pair(iterator(__res.first),
    349 			      iterator(__res.second));
    350       }
    351 
    352       // _GLIBCXX_RESOLVE_LIB_DEFECTS
    353       // 214. set::find() missing const overload
    354       std::pair<const_iterator,const_iterator>
    355       equal_range(const key_type& __x) const
    356       {
    357 	typedef typename _Base::const_iterator _Base_iterator;
    358 	std::pair<_Base_iterator, _Base_iterator> __res =
    359         _Base::equal_range(__x);
    360 	return std::make_pair(const_iterator(__res.first),
    361 			      const_iterator(__res.second));
    362       }
    363 
    364       _Base&
    365       _M_base() _GLIBCXX_NOEXCEPT       { return *this; }
    366 
    367       const _Base&
    368       _M_base() const _GLIBCXX_NOEXCEPT { return *this; }
    369 
    370     };
    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     inline bool
    386     operator<(const multiset<_Key, _Compare, _Allocator>& __lhs,
    387 	      const multiset<_Key, _Compare, _Allocator>& __rhs)
    388     { return __lhs._M_base() < __rhs._M_base(); }
    389 
    390   template<typename _Key, typename _Compare, typename _Allocator>
    391     inline bool
    392     operator<=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    393 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    394     { return __lhs._M_base() <= __rhs._M_base(); }
    395 
    396   template<typename _Key, typename _Compare, typename _Allocator>
    397     inline bool
    398     operator>=(const multiset<_Key, _Compare, _Allocator>& __lhs,
    399 	       const multiset<_Key, _Compare, _Allocator>& __rhs)
    400     { return __lhs._M_base() >= __rhs._M_base(); }
    401 
    402   template<typename _Key, typename _Compare, typename _Allocator>
    403     inline bool
    404     operator>(const multiset<_Key, _Compare, _Allocator>& __lhs,
    405 	      const multiset<_Key, _Compare, _Allocator>& __rhs)
    406     { return __lhs._M_base() > __rhs._M_base(); }
    407 
    408   template<typename _Key, typename _Compare, typename _Allocator>
    409     void
    410     swap(multiset<_Key, _Compare, _Allocator>& __x,
    411 	 multiset<_Key, _Compare, _Allocator>& __y)
    412     { return __x.swap(__y); }
    413 
    414 } // namespace __profile
    415 } // namespace std
    416 
    417 #endif
    418