| // Profiling unordered_map/unordered_multimap implementation -*- C++ -*- |
| |
| // Copyright (C) 2009, 2010 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| // |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| /** @file profile/unordered_map |
| * This file is a GNU profile extension to the Standard C++ Library. |
| */ |
| |
| #ifndef _GLIBCXX_PROFILE_UNORDERED_MAP |
| #define _GLIBCXX_PROFILE_UNORDERED_MAP 1 |
| |
| #ifndef __GXX_EXPERIMENTAL_CXX0X__ |
| # include <bits/c++0x_warning.h> |
| #else |
| # include <unordered_map> |
| |
| #include <profile/base.h> |
| |
| #define _GLIBCXX_BASE unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc> |
| #define _GLIBCXX_STD_BASE _GLIBCXX_STD_C::_GLIBCXX_BASE |
| |
| namespace std _GLIBCXX_VISIBILITY(default) |
| { |
| namespace __profile |
| { |
| /// Class std::unordered_map wrapper with performance instrumentation. |
| template<typename _Key, typename _Tp, |
| typename _Hash = std::hash<_Key>, |
| typename _Pred = std::equal_to<_Key>, |
| typename _Alloc = std::allocator<_Key> > |
| class unordered_map |
| : public _GLIBCXX_STD_BASE |
| { |
| typedef typename _GLIBCXX_STD_BASE _Base; |
| |
| public: |
| typedef typename _Base::size_type size_type; |
| typedef typename _Base::hasher hasher; |
| typedef typename _Base::key_equal key_equal; |
| typedef typename _Base::allocator_type allocator_type; |
| typedef typename _Base::key_type key_type; |
| typedef typename _Base::value_type value_type; |
| typedef typename _Base::difference_type difference_type; |
| typedef typename _Base::reference reference; |
| typedef typename _Base::const_reference const_reference; |
| typedef typename _Base::mapped_type mapped_type; |
| |
| typedef typename _Base::iterator iterator; |
| typedef typename _Base::const_iterator const_iterator; |
| |
| explicit |
| unordered_map(size_type __n = 10, |
| const hasher& __hf = hasher(), |
| const key_equal& __eql = key_equal(), |
| const allocator_type& __a = allocator_type()) |
| : _Base(__n, __hf, __eql, __a) |
| { |
| __profcxx_hashtable_construct(this, _Base::bucket_count()); |
| __profcxx_hashtable_construct2(this); |
| } |
| |
| template<typename _InputIterator> |
| unordered_map(_InputIterator __f, _InputIterator __l, |
| size_type __n = 0, |
| const hasher& __hf = hasher(), |
| const key_equal& __eql = key_equal(), |
| const allocator_type& __a = allocator_type()) |
| : _Base(__f, __l, __n, __hf, __eql, __a) |
| { |
| __profcxx_hashtable_construct(this, _Base::bucket_count()); |
| __profcxx_hashtable_construct2(this); |
| } |
| |
| unordered_map(const _Base& __x) |
| : _Base(__x) |
| { |
| __profcxx_hashtable_construct(this, _Base::bucket_count()); |
| __profcxx_hashtable_construct2(this); |
| } |
| |
| unordered_map(unordered_map&& __x) |
| : _Base(std::move(__x)) |
| { |
| __profcxx_hashtable_construct(this, _Base::bucket_count()); |
| __profcxx_hashtable_construct2(this); |
| } |
| |
| unordered_map(initializer_list<value_type> __l, |
| size_type __n = 0, |
| const hasher& __hf = hasher(), |
| const key_equal& __eql = key_equal(), |
| const allocator_type& __a = allocator_type()) |
| : _Base(__l, __n, __hf, __eql, __a) { } |
| |
| unordered_map& |
| operator=(const unordered_map& __x) |
| { |
| *static_cast<_Base*>(this) = __x; |
| return *this; |
| } |
| |
| unordered_map& |
| operator=(unordered_map&& __x) |
| { |
| // NB: DR 1204. |
| // NB: DR 675. |
| this->clear(); |
| this->swap(__x); |
| return *this; |
| } |
| |
| unordered_map& |
| operator=(initializer_list<value_type> __l) |
| { |
| this->clear(); |
| this->insert(__l); |
| return *this; |
| } |
| |
| ~unordered_map() |
| { |
| __profcxx_hashtable_destruct(this, _Base::bucket_count(), |
| _Base::size()); |
| _M_profile_destruct(); |
| } |
| |
| _Base& |
| _M_base() { return *this; } |
| |
| const _Base& |
| _M_base() const { return *this; } |
| |
| |
| void |
| clear() |
| { |
| __profcxx_hashtable_destruct(this, _Base::bucket_count(), |
| _Base::size()); |
| _M_profile_destruct(); |
| _Base::clear(); |
| } |
| |
| void |
| insert(std::initializer_list<value_type> __l) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| _Base::insert(__l); |
| _M_profile_resize(__old_size); |
| } |
| |
| std::pair<iterator, bool> |
| insert(const value_type& __obj) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| std::pair<iterator, bool> __res = _Base::insert(__obj); |
| _M_profile_resize(__old_size); |
| return __res; |
| } |
| |
| iterator |
| insert(const_iterator __iter, const value_type& __v) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| iterator __res = _Base::insert(__iter, __v); |
| _M_profile_resize(__old_size); |
| return __res; |
| } |
| |
| template<typename _Pair, typename = typename |
| std::enable_if<std::is_convertible<_Pair, |
| value_type>::value>::type> |
| std::pair<iterator, bool> |
| insert(_Pair&& __obj) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| std::pair<iterator, bool> __res |
| = _Base::insert(std::forward<_Pair>(__obj)); |
| _M_profile_resize(__old_size); |
| return __res; |
| } |
| |
| template<typename _Pair, typename = typename |
| std::enable_if<std::is_convertible<_Pair, |
| value_type>::value>::type> |
| iterator |
| insert(const_iterator __iter, _Pair&& __v) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| iterator __res = _Base::insert(__iter, std::forward<_Pair>(__v)); |
| _M_profile_resize(__old_size); |
| return __res; |
| } |
| |
| template<typename _InputIter> |
| void |
| insert(_InputIter __first, _InputIter __last) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| _Base::insert(__first, __last); |
| _M_profile_resize(__old_size); |
| } |
| |
| void |
| insert(const value_type* __first, const value_type* __last) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| _Base::insert(__first, __last); |
| _M_profile_resize(__old_size); |
| } |
| |
| // operator[] |
| mapped_type& |
| operator[](const _Key& __k) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| mapped_type& __res = _M_base()[__k]; |
| _M_profile_resize(__old_size); |
| return __res; |
| } |
| |
| mapped_type& |
| operator[](_Key&& __k) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| mapped_type& __res = _M_base()[std::move(__k)]; |
| _M_profile_resize(__old_size); |
| return __res; |
| } |
| |
| void |
| swap(unordered_map& __x) |
| { _Base::swap(__x); } |
| |
| void rehash(size_type __n) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| _Base::rehash(__n); |
| _M_profile_resize(__old_size); |
| } |
| |
| private: |
| void |
| _M_profile_resize(size_type __old_size) |
| { |
| size_type __new_size = _Base::bucket_count(); |
| if (__old_size != __new_size) |
| __profcxx_hashtable_resize(this, __old_size, __new_size); |
| } |
| |
| void |
| _M_profile_destruct() |
| { |
| size_type __hops = 0, __lc = 0, __chain = 0; |
| for (iterator __it = _M_base().begin(); __it != _M_base().end(); |
| ++__it) |
| { |
| while (__it._M_cur_node->_M_next) |
| { |
| ++__chain; |
| ++__it; |
| } |
| if (__chain) |
| { |
| ++__chain; |
| __lc = __lc > __chain ? __lc : __chain; |
| __hops += __chain * (__chain - 1) / 2; |
| __chain = 0; |
| } |
| } |
| __profcxx_hashtable_destruct2(this, __lc, _Base::size(), __hops); |
| } |
| }; |
| |
| template<typename _Key, typename _Tp, typename _Hash, |
| typename _Pred, typename _Alloc> |
| inline void |
| swap(unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, |
| unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) |
| { __x.swap(__y); } |
| |
| template<typename _Key, typename _Tp, typename _Hash, |
| typename _Pred, typename _Alloc> |
| inline bool |
| operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, |
| const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) |
| { return __x._M_equal(__y); } |
| |
| template<typename _Key, typename _Tp, typename _Hash, |
| typename _Pred, typename _Alloc> |
| inline bool |
| operator!=(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, |
| const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) |
| { return !(__x == __y); } |
| |
| #undef _GLIBCXX_BASE |
| #undef _GLIBCXX_STD_BASE |
| #define _GLIBCXX_BASE unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc> |
| #define _GLIBCXX_STD_BASE _GLIBCXX_STD_C::_GLIBCXX_BASE |
| |
| /// Class std::unordered_multimap wrapper with performance instrumentation. |
| template<typename _Key, typename _Tp, |
| typename _Hash = std::hash<_Key>, |
| typename _Pred = std::equal_to<_Key>, |
| typename _Alloc = std::allocator<_Key> > |
| class unordered_multimap |
| : public _GLIBCXX_STD_BASE |
| { |
| typedef typename _GLIBCXX_STD_BASE _Base; |
| |
| public: |
| typedef typename _Base::size_type size_type; |
| typedef typename _Base::hasher hasher; |
| typedef typename _Base::key_equal key_equal; |
| typedef typename _Base::allocator_type allocator_type; |
| typedef typename _Base::key_type key_type; |
| typedef typename _Base::value_type value_type; |
| typedef typename _Base::difference_type difference_type; |
| typedef typename _Base::reference reference; |
| typedef typename _Base::const_reference const_reference; |
| |
| typedef typename _Base::iterator iterator; |
| typedef typename _Base::const_iterator const_iterator; |
| |
| explicit |
| unordered_multimap(size_type __n = 10, |
| const hasher& __hf = hasher(), |
| const key_equal& __eql = key_equal(), |
| const allocator_type& __a = allocator_type()) |
| : _Base(__n, __hf, __eql, __a) |
| { |
| __profcxx_hashtable_construct(this, _Base::bucket_count()); |
| } |
| template<typename _InputIterator> |
| unordered_multimap(_InputIterator __f, _InputIterator __l, |
| size_type __n = 0, |
| const hasher& __hf = hasher(), |
| const key_equal& __eql = key_equal(), |
| const allocator_type& __a = allocator_type()) |
| : _Base(__f, __l, __n, __hf, __eql, __a) |
| { |
| __profcxx_hashtable_construct(this, _Base::bucket_count()); |
| } |
| |
| unordered_multimap(const _Base& __x) |
| : _Base(__x) |
| { |
| __profcxx_hashtable_construct(this, _Base::bucket_count()); |
| } |
| |
| unordered_multimap(unordered_multimap&& __x) |
| : _Base(std::move(__x)) |
| { |
| __profcxx_hashtable_construct(this, _Base::bucket_count()); |
| } |
| |
| unordered_multimap(initializer_list<value_type> __l, |
| size_type __n = 0, |
| const hasher& __hf = hasher(), |
| const key_equal& __eql = key_equal(), |
| const allocator_type& __a = allocator_type()) |
| : _Base(__l, __n, __hf, __eql, __a) { } |
| |
| unordered_multimap& |
| operator=(const unordered_multimap& __x) |
| { |
| *static_cast<_Base*>(this) = __x; |
| return *this; |
| } |
| |
| unordered_multimap& |
| operator=(unordered_multimap&& __x) |
| { |
| // NB: DR 1204. |
| // NB: DR 675. |
| this->clear(); |
| this->swap(__x); |
| return *this; |
| } |
| |
| unordered_multimap& |
| operator=(initializer_list<value_type> __l) |
| { |
| this->clear(); |
| this->insert(__l); |
| return *this; |
| } |
| |
| ~unordered_multimap() |
| { |
| __profcxx_hashtable_destruct(this, _Base::bucket_count(), |
| _Base::size()); |
| _M_profile_destruct(); |
| } |
| |
| _Base& |
| _M_base() { return *this; } |
| |
| const _Base& |
| _M_base() const { return *this; } |
| |
| |
| void |
| clear() |
| { |
| __profcxx_hashtable_destruct(this, _Base::bucket_count(), |
| _Base::size()); |
| _M_profile_destruct(); |
| _Base::clear(); |
| } |
| |
| void |
| insert(std::initializer_list<value_type> __l) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| _Base::insert(__l); |
| _M_profile_resize(__old_size, _Base::bucket_count()); |
| } |
| |
| iterator |
| insert(const value_type& __obj) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| iterator __res = _Base::insert(__obj); |
| _M_profile_resize(__old_size, _Base::bucket_count()); |
| return __res; |
| } |
| |
| iterator |
| insert(const_iterator __iter, const value_type& __v) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| iterator __res = _Base::insert(__iter, __v); |
| _M_profile_resize(__old_size, _Base::bucket_count()); |
| return __res; |
| } |
| |
| template<typename _Pair, typename = typename |
| std::enable_if<std::is_convertible<_Pair, |
| value_type>::value>::type> |
| iterator |
| insert(_Pair&& __obj) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| iterator __res = _Base::insert(std::forward<_Pair>(__obj)); |
| _M_profile_resize(__old_size, _Base::bucket_count()); |
| return __res; |
| } |
| |
| template<typename _Pair, typename = typename |
| std::enable_if<std::is_convertible<_Pair, |
| value_type>::value>::type> |
| iterator |
| insert(const_iterator __iter, _Pair&& __v) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| iterator __res = _Base::insert(__iter, std::forward<_Pair>(__v)); |
| _M_profile_resize(__old_size, _Base::bucket_count()); |
| return __res; |
| } |
| |
| template<typename _InputIter> |
| void |
| insert(_InputIter __first, _InputIter __last) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| _Base::insert(__first, __last); |
| _M_profile_resize(__old_size, _Base::bucket_count()); |
| } |
| |
| void |
| insert(const value_type* __first, const value_type* __last) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| _Base::insert(__first, __last); |
| _M_profile_resize(__old_size, _Base::bucket_count()); |
| } |
| |
| void |
| swap(unordered_multimap& __x) |
| { _Base::swap(__x); } |
| |
| void rehash(size_type __n) |
| { |
| size_type __old_size = _Base::bucket_count(); |
| _Base::rehash(__n); |
| _M_profile_resize(__old_size, _Base::bucket_count()); |
| } |
| |
| private: |
| void |
| _M_profile_resize(size_type __old_size, size_type __new_size) |
| { |
| if (__old_size != __new_size) |
| __profcxx_hashtable_resize(this, __old_size, __new_size); |
| } |
| |
| void |
| _M_profile_destruct() |
| { |
| size_type __hops = 0, __lc = 0, __chain = 0; |
| for (iterator __it = _M_base().begin(); __it != _M_base().end(); |
| ++__it) |
| { |
| while (__it._M_cur_node->_M_next) |
| { |
| ++__chain; |
| ++__it; |
| } |
| if (__chain) |
| { |
| ++__chain; |
| __lc = __lc > __chain ? __lc : __chain; |
| __hops += __chain * (__chain - 1) / 2; |
| __chain = 0; |
| } |
| } |
| __profcxx_hashtable_destruct2(this, __lc, _Base::size(), __hops); |
| } |
| |
| }; |
| |
| template<typename _Key, typename _Tp, typename _Hash, |
| typename _Pred, typename _Alloc> |
| inline void |
| swap(unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, |
| unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) |
| { __x.swap(__y); } |
| |
| template<typename _Key, typename _Tp, typename _Hash, |
| typename _Pred, typename _Alloc> |
| inline bool |
| operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, |
| const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) |
| { return __x._M_equal(__y); } |
| |
| template<typename _Key, typename _Tp, typename _Hash, |
| typename _Pred, typename _Alloc> |
| inline bool |
| operator!=(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x, |
| const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y) |
| { return !(__x == __y); } |
| |
| } // namespace __profile |
| } // namespace std |
| |
| #undef _GLIBCXX_BASE |
| #undef _GLIBCXX_STD_BASE |
| |
| #endif // __GXX_EXPERIMENTAL_CXX0X__ |
| |
| #endif |