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      1 // Profiling multimap 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/multimap.h
     26  *  This file is a GNU profile extension to the Standard C++ Library.
     27  */
     28 
     29 #ifndef _GLIBCXX_PROFILE_MULTIMAP_H
     30 #define _GLIBCXX_PROFILE_MULTIMAP_H 1
     31 
     32 #include <utility>
     33 
     34 namespace std _GLIBCXX_VISIBILITY(default)
     35 {
     36 namespace __profile
     37 {
     38   /// Class std::multimap wrapper with performance instrumentation.
     39   template<typename _Key, typename _Tp, typename _Compare = std::less<_Key>,
     40 	   typename _Allocator = std::allocator<std::pair<const _Key, _Tp> > >
     41     class multimap
     42     : public _GLIBCXX_STD_C::multimap<_Key, _Tp, _Compare, _Allocator>
     43     {
     44       typedef _GLIBCXX_STD_C::multimap<_Key, _Tp, _Compare, _Allocator> _Base;
     45 
     46     public:
     47       // types:
     48       typedef _Key				     key_type;
     49       typedef _Tp				     mapped_type;
     50       typedef std::pair<const _Key, _Tp>             value_type;
     51       typedef _Compare                               key_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       // 23.3.1.1 construct/copy/destroy:
     67       explicit multimap(const _Compare& __comp = _Compare(),
     68 			const _Allocator& __a = _Allocator())
     69       : _Base(__comp, __a) { }
     70 
     71       template<typename _InputIterator>
     72       multimap(_InputIterator __first, _InputIterator __last,
     73 	       const _Compare& __comp = _Compare(),
     74 	       const _Allocator& __a = _Allocator())
     75       : _Base(__first, __last, __comp, __a) { }
     76 
     77       multimap(const multimap& __x)
     78       : _Base(__x) { }
     79 
     80       multimap(const _Base& __x)
     81       : _Base(__x) { }
     82 
     83 #ifdef __GXX_EXPERIMENTAL_CXX0X__
     84       multimap(multimap&& __x)
     85       : _Base(std::move(__x))
     86       { }
     87 
     88       multimap(initializer_list<value_type> __l,
     89 	       const _Compare& __c = _Compare(),
     90 	       const allocator_type& __a = allocator_type())
     91       : _Base(__l, __c, __a) { }
     92 #endif
     93 
     94       ~multimap() { }
     95 
     96       multimap&
     97       operator=(const multimap& __x)
     98       {
     99 	*static_cast<_Base*>(this) = __x;
    100 	return *this;
    101       }
    102 
    103 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    104       multimap&
    105       operator=(multimap&& __x)
    106       {
    107 	// NB: DR 1204.
    108 	// NB: DR 675.
    109 	this->clear();
    110 	this->swap(__x);
    111 	return *this;
    112       }
    113 
    114       multimap&
    115       operator=(initializer_list<value_type> __l)
    116       {
    117 	this->clear();
    118 	this->insert(__l);
    119 	return *this;
    120       }
    121 #endif
    122 
    123       using _Base::get_allocator;
    124 
    125       // iterators:
    126       iterator
    127       begin()
    128       { return iterator(_Base::begin()); }
    129 
    130       const_iterator
    131       begin() const
    132       { return const_iterator(_Base::begin()); }
    133 
    134       iterator
    135       end()
    136       { return iterator(_Base::end()); }
    137 
    138       const_iterator
    139       end() const
    140       { return const_iterator(_Base::end()); }
    141 
    142       reverse_iterator
    143       rbegin()
    144       { return reverse_iterator(end()); }
    145 
    146       const_reverse_iterator
    147       rbegin() const
    148       { return const_reverse_iterator(end()); }
    149 
    150       reverse_iterator
    151       rend()
    152       { return reverse_iterator(begin()); }
    153 
    154       const_reverse_iterator
    155       rend() const
    156       { return const_reverse_iterator(begin()); }
    157 
    158 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    159       const_iterator
    160       cbegin() const
    161       { return const_iterator(_Base::begin()); }
    162 
    163       const_iterator
    164       cend() const
    165       { return const_iterator(_Base::end()); }
    166 
    167       const_reverse_iterator
    168       crbegin() const
    169       { return const_reverse_iterator(end()); }
    170 
    171       const_reverse_iterator
    172       crend() const
    173       { return const_reverse_iterator(begin()); }
    174 #endif
    175 
    176       // capacity:
    177       using _Base::empty;
    178       using _Base::size;
    179       using _Base::max_size;
    180 
    181       // modifiers:
    182       iterator
    183       insert(const value_type& __x)
    184       { return iterator(_Base::insert(__x)); }
    185 
    186 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    187       template<typename _Pair, typename = typename
    188 	       std::enable_if<std::is_convertible<_Pair,
    189 						  value_type>::value>::type>
    190         iterator
    191         insert(_Pair&& __x)
    192         { return iterator(_Base::insert(std::forward<_Pair>(__x))); }
    193 #endif
    194 
    195 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    196       void
    197       insert(std::initializer_list<value_type> __list)
    198       { _Base::insert(__list); }
    199 #endif
    200 
    201       iterator
    202 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    203       insert(const_iterator __position, const value_type& __x)
    204 #else
    205       insert(iterator __position, const value_type& __x)
    206 #endif
    207       { return iterator(_Base::insert(__position, __x)); }
    208 
    209 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    210       template<typename _Pair, typename = typename
    211 	       std::enable_if<std::is_convertible<_Pair,
    212 						  value_type>::value>::type>
    213         iterator
    214         insert(const_iterator __position, _Pair&& __x)
    215         { return iterator(_Base::insert(__position,
    216 					std::forward<_Pair>(__x))); }
    217 #endif
    218 
    219       template<typename _InputIterator>
    220         void
    221         insert(_InputIterator __first, _InputIterator __last)
    222         { _Base::insert(__first, __last); }
    223 
    224 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    225       iterator
    226       erase(const_iterator __position)
    227       { return iterator(_Base::erase(__position)); }
    228 
    229       iterator
    230       erase(iterator __position)
    231       { return iterator(_Base::erase(__position)); }
    232 #else
    233       void
    234       erase(iterator __position)
    235       { _Base::erase(__position); }
    236 #endif
    237 
    238       size_type
    239       erase(const key_type& __x)
    240       {
    241 	std::pair<iterator, iterator> __victims = this->equal_range(__x);
    242 	size_type __count = 0;
    243 	while (__victims.first != __victims.second)
    244 	{
    245 	  iterator __victim = __victims.first++;
    246 	  _Base::erase(__victim);
    247 	  ++__count;
    248 	}
    249 	return __count;
    250       }
    251 
    252 #ifdef __GXX_EXPERIMENTAL_CXX0X__
    253       iterator
    254       erase(const_iterator __first, const_iterator __last)
    255       { return iterator(_Base::erase(__first, __last)); }
    256 #else
    257       void
    258       erase(iterator __first, iterator __last)
    259       { _Base::erase(__first, __last); }
    260 #endif
    261 
    262       void
    263       swap(multimap& __x)
    264       { _Base::swap(__x); }
    265 
    266       void
    267       clear()
    268       { this->erase(begin(), end()); }
    269 
    270       // observers:
    271       using _Base::key_comp;
    272       using _Base::value_comp;
    273 
    274       // 23.3.1.3 multimap operations:
    275       iterator
    276       find(const key_type& __x)
    277       { return iterator(_Base::find(__x)); }
    278 
    279       const_iterator
    280       find(const key_type& __x) const
    281       { return const_iterator(_Base::find(__x)); }
    282 
    283       using _Base::count;
    284 
    285       iterator
    286       lower_bound(const key_type& __x)
    287       { return iterator(_Base::lower_bound(__x)); }
    288 
    289       const_iterator
    290       lower_bound(const key_type& __x) const
    291       { return const_iterator(_Base::lower_bound(__x)); }
    292 
    293       iterator
    294       upper_bound(const key_type& __x)
    295       { return iterator(_Base::upper_bound(__x)); }
    296 
    297       const_iterator
    298       upper_bound(const key_type& __x) const
    299       { return const_iterator(_Base::upper_bound(__x)); }
    300 
    301       std::pair<iterator,iterator>
    302       equal_range(const key_type& __x)
    303       {
    304 	typedef typename _Base::iterator _Base_iterator;
    305 	std::pair<_Base_iterator, _Base_iterator> __res =
    306 	_Base::equal_range(__x);
    307 	return std::make_pair(iterator(__res.first),
    308 			      iterator(__res.second));
    309       }
    310 
    311       std::pair<const_iterator,const_iterator>
    312       equal_range(const key_type& __x) const
    313       {
    314 	typedef typename _Base::const_iterator _Base_const_iterator;
    315 	std::pair<_Base_const_iterator, _Base_const_iterator> __res =
    316 	_Base::equal_range(__x);
    317 	return std::make_pair(const_iterator(__res.first),
    318 			      const_iterator(__res.second));
    319       }
    320 
    321       _Base&
    322       _M_base() { return *this; }
    323 
    324       const _Base&
    325       _M_base() const { return *this; }
    326     };
    327 
    328   template<typename _Key, typename _Tp,
    329 	   typename _Compare, typename _Allocator>
    330     inline bool
    331     operator==(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
    332 	       const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
    333     { return __lhs._M_base() == __rhs._M_base(); }
    334 
    335   template<typename _Key, typename _Tp,
    336 	   typename _Compare, typename _Allocator>
    337     inline bool
    338     operator!=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
    339 	       const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
    340     { return __lhs._M_base() != __rhs._M_base(); }
    341 
    342   template<typename _Key, typename _Tp,
    343 	   typename _Compare, typename _Allocator>
    344     inline bool
    345     operator<(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
    346 	      const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
    347     { return __lhs._M_base() < __rhs._M_base(); }
    348 
    349   template<typename _Key, typename _Tp,
    350 	   typename _Compare, typename _Allocator>
    351     inline bool
    352     operator<=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
    353 	       const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
    354     { return __lhs._M_base() <= __rhs._M_base(); }
    355 
    356   template<typename _Key, typename _Tp,
    357 	   typename _Compare, typename _Allocator>
    358     inline bool
    359     operator>=(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
    360 	       const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
    361     { return __lhs._M_base() >= __rhs._M_base(); }
    362 
    363   template<typename _Key, typename _Tp,
    364 	   typename _Compare, typename _Allocator>
    365     inline bool
    366     operator>(const multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
    367 	      const multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
    368     { return __lhs._M_base() > __rhs._M_base(); }
    369 
    370   template<typename _Key, typename _Tp,
    371 	   typename _Compare, typename _Allocator>
    372     inline void
    373     swap(multimap<_Key, _Tp, _Compare, _Allocator>& __lhs,
    374 	 multimap<_Key, _Tp, _Compare, _Allocator>& __rhs)
    375     { __lhs.swap(__rhs); }
    376 
    377 } // namespace __profile
    378 } // namespace std
    379 
    380 #endif
    381