mirror of git://gcc.gnu.org/git/gcc.git
521 lines
15 KiB
C++
521 lines
15 KiB
C++
// Profiling unordered_map/unordered_multimap implementation -*- C++ -*-
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// Copyright (C) 2009-2014 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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/** @file profile/unordered_map
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* This file is a GNU profile extension to the Standard C++ Library.
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*/
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#ifndef _GLIBCXX_PROFILE_UNORDERED_MAP
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#define _GLIBCXX_PROFILE_UNORDERED_MAP 1
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#if __cplusplus < 201103L
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# include <bits/c++0x_warning.h>
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#else
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# include <unordered_map>
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#include <profile/base.h>
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#include <profile/unordered_base.h>
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#define _GLIBCXX_BASE unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>
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#define _GLIBCXX_STD_BASE _GLIBCXX_STD_C::_GLIBCXX_BASE
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namespace std _GLIBCXX_VISIBILITY(default)
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{
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namespace __profile
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{
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/// Class std::unordered_map wrapper with performance instrumentation.
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template<typename _Key, typename _Tp,
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typename _Hash = std::hash<_Key>,
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typename _Pred = std::equal_to<_Key>,
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typename _Alloc = std::allocator<std::pair<const _Key, _Tp> > >
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class unordered_map
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: public _GLIBCXX_STD_BASE,
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public _Unordered_profile<unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>,
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true>
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{
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typedef typename _GLIBCXX_STD_BASE _Base;
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_Base&
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_M_base() noexcept { return *this; }
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const _Base&
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_M_base() const noexcept { return *this; }
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public:
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typedef typename _Base::size_type size_type;
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typedef typename _Base::hasher hasher;
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typedef typename _Base::key_equal key_equal;
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typedef typename _Base::allocator_type allocator_type;
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typedef typename _Base::key_type key_type;
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typedef typename _Base::value_type value_type;
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typedef typename _Base::difference_type difference_type;
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typedef typename _Base::reference reference;
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typedef typename _Base::const_reference const_reference;
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typedef typename _Base::mapped_type mapped_type;
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typedef typename _Base::iterator iterator;
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typedef typename _Base::const_iterator const_iterator;
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explicit
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unordered_map(size_type __n = 10,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__n, __hf, __eql, __a) { }
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template<typename _InputIterator>
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unordered_map(_InputIterator __f, _InputIterator __l,
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size_type __n = 0,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__f, __l, __n, __hf, __eql, __a) { }
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unordered_map(const unordered_map&) = default;
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unordered_map(const _Base& __x)
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: _Base(__x) { }
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unordered_map(unordered_map&&) = default;
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explicit
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unordered_map(const allocator_type& __a)
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: _Base(__a) { }
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unordered_map(const unordered_map& __umap,
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const allocator_type& __a)
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: _Base(__umap, __a) { }
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unordered_map(unordered_map&& __umap,
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const allocator_type& __a)
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: _Base(std::move(__umap._M_base()), __a) { }
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unordered_map(initializer_list<value_type> __l,
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size_type __n = 0,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__l, __n, __hf, __eql, __a) { }
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unordered_map&
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operator=(const unordered_map&) = default;
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unordered_map&
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operator=(unordered_map&&) = default;
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unordered_map&
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operator=(initializer_list<value_type> __l)
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{
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_M_base() = __l;
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return *this;
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}
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void
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clear() noexcept
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{
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__profcxx_hashtable_destruct(this, _Base::bucket_count(),
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_Base::size());
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this->_M_profile_destruct();
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_Base::clear();
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}
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template<typename... _Args>
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std::pair<iterator, bool>
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emplace(_Args&&... __args)
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{
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size_type __old_size = _Base::bucket_count();
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std::pair<iterator, bool> __res
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= _Base::emplace(std::forward<_Args>(__args)...);
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_M_profile_resize(__old_size);
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return __res;
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}
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template<typename... _Args>
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iterator
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emplace_hint(const_iterator __it, _Args&&... __args)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res
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= _Base::emplace_hint(__it, std::forward<_Args>(__args)...);
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_M_profile_resize(__old_size);
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return __res;
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}
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void
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insert(std::initializer_list<value_type> __l)
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{
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size_type __old_size = _Base::bucket_count();
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_Base::insert(__l);
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_M_profile_resize(__old_size);
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}
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std::pair<iterator, bool>
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insert(const value_type& __obj)
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{
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size_type __old_size = _Base::bucket_count();
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std::pair<iterator, bool> __res = _Base::insert(__obj);
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_M_profile_resize(__old_size);
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return __res;
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}
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iterator
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insert(const_iterator __iter, const value_type& __v)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res = _Base::insert(__iter, __v);
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_M_profile_resize(__old_size);
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return __res;
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}
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template<typename _Pair, typename = typename
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std::enable_if<std::is_constructible<value_type,
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_Pair&&>::value>::type>
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std::pair<iterator, bool>
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insert(_Pair&& __obj)
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{
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size_type __old_size = _Base::bucket_count();
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std::pair<iterator, bool> __res
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= _Base::insert(std::forward<_Pair>(__obj));
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_M_profile_resize(__old_size);
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return __res;
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}
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template<typename _Pair, typename = typename
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std::enable_if<std::is_constructible<value_type,
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_Pair&&>::value>::type>
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iterator
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insert(const_iterator __iter, _Pair&& __v)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res = _Base::insert(__iter, std::forward<_Pair>(__v));
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_M_profile_resize(__old_size);
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return __res;
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}
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template<typename _InputIter>
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void
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insert(_InputIter __first, _InputIter __last)
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{
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size_type __old_size = _Base::bucket_count();
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_Base::insert(__first, __last);
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_M_profile_resize(__old_size);
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}
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// operator[]
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mapped_type&
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operator[](const _Key& __k)
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{
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size_type __old_size = _Base::bucket_count();
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mapped_type& __res = _M_base()[__k];
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_M_profile_resize(__old_size);
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return __res;
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}
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mapped_type&
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operator[](_Key&& __k)
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{
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size_type __old_size = _Base::bucket_count();
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mapped_type& __res = _M_base()[std::move(__k)];
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_M_profile_resize(__old_size);
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return __res;
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}
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void
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swap(unordered_map& __x)
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noexcept( noexcept(__x._M_base().swap(__x)) )
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{ _Base::swap(__x._M_base()); }
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void rehash(size_type __n)
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{
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size_type __old_size = _Base::bucket_count();
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_Base::rehash(__n);
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_M_profile_resize(__old_size);
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}
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private:
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void
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_M_profile_resize(size_type __old_size)
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{
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size_type __new_size = _Base::bucket_count();
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if (__old_size != __new_size)
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__profcxx_hashtable_resize(this, __old_size, __new_size);
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}
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};
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline void
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swap(unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ __x.swap(__y); }
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline bool
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operator==(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ return static_cast<const _GLIBCXX_STD_BASE&>(__x) == __y; }
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline bool
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operator!=(const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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const unordered_map<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ return !(__x == __y); }
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#undef _GLIBCXX_BASE
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#undef _GLIBCXX_STD_BASE
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#define _GLIBCXX_BASE unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>
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#define _GLIBCXX_STD_BASE _GLIBCXX_STD_C::_GLIBCXX_BASE
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/// Class std::unordered_multimap wrapper with performance instrumentation.
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template<typename _Key, typename _Tp,
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typename _Hash = std::hash<_Key>,
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typename _Pred = std::equal_to<_Key>,
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typename _Alloc = std::allocator<std::pair<const _Key, _Tp> > >
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class unordered_multimap
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: public _GLIBCXX_STD_BASE,
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public _Unordered_profile<unordered_multimap<_Key, _Tp,
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_Hash, _Pred, _Alloc>,
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false>
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{
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typedef typename _GLIBCXX_STD_BASE _Base;
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_Base&
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_M_base() noexcept { return *this; }
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const _Base&
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_M_base() const noexcept { return *this; }
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public:
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typedef typename _Base::size_type size_type;
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typedef typename _Base::hasher hasher;
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typedef typename _Base::key_equal key_equal;
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typedef typename _Base::allocator_type allocator_type;
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typedef typename _Base::key_type key_type;
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typedef typename _Base::value_type value_type;
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typedef typename _Base::difference_type difference_type;
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typedef typename _Base::reference reference;
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typedef typename _Base::const_reference const_reference;
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typedef typename _Base::iterator iterator;
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typedef typename _Base::const_iterator const_iterator;
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explicit
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unordered_multimap(size_type __n = 10,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__n, __hf, __eql, __a) { }
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template<typename _InputIterator>
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unordered_multimap(_InputIterator __f, _InputIterator __l,
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size_type __n = 0,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__f, __l, __n, __hf, __eql, __a) { }
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unordered_multimap(const unordered_multimap&) = default;
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unordered_multimap(const _Base& __x)
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: _Base(__x) { }
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unordered_multimap(unordered_multimap&&) = default;
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explicit
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unordered_multimap(const allocator_type& __a)
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: _Base(__a) { }
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unordered_multimap(const unordered_multimap& __ummap,
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const allocator_type& __a)
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: _Base(__ummap._M_base(), __a) { }
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unordered_multimap(unordered_multimap&& __ummap,
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const allocator_type& __a)
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: _Base(std::move(__ummap._M_base()), __a) { }
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unordered_multimap(initializer_list<value_type> __l,
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size_type __n = 0,
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const hasher& __hf = hasher(),
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const key_equal& __eql = key_equal(),
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const allocator_type& __a = allocator_type())
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: _Base(__l, __n, __hf, __eql, __a) { }
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unordered_multimap&
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operator=(const unordered_multimap&) = default;
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unordered_multimap&
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operator=(unordered_multimap&&) = default;
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unordered_multimap&
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operator=(initializer_list<value_type> __l)
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{
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_M_base() = __l;
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return *this;
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}
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void
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clear() noexcept
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{
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__profcxx_hashtable_destruct(this, _Base::bucket_count(),
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_Base::size());
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this->_M_profile_destruct();
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_Base::clear();
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}
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template<typename... _Args>
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iterator
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emplace(_Args&&... __args)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res
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= _Base::emplace(std::forward<_Args>(__args)...);
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_M_profile_resize(__old_size);
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return __res;
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}
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template<typename... _Args>
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iterator
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emplace_hint(const_iterator __it, _Args&&... __args)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res
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= _Base::emplace_hint(__it, std::forward<_Args>(__args)...);
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_M_profile_resize(__old_size);
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return __res;
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}
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void
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insert(std::initializer_list<value_type> __l)
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{
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size_type __old_size = _Base::bucket_count();
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_Base::insert(__l);
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_M_profile_resize(__old_size);
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}
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iterator
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insert(const value_type& __obj)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res = _Base::insert(__obj);
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_M_profile_resize(__old_size);
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return __res;
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}
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iterator
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insert(const_iterator __iter, const value_type& __v)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res = _Base::insert(__iter, __v);
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_M_profile_resize(__old_size);
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return __res;
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}
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template<typename _Pair, typename = typename
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std::enable_if<std::is_constructible<value_type,
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_Pair&&>::value>::type>
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iterator
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insert(_Pair&& __obj)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res = _Base::insert(std::forward<_Pair>(__obj));
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_M_profile_resize(__old_size);
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return __res;
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}
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template<typename _Pair, typename = typename
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std::enable_if<std::is_constructible<value_type,
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_Pair&&>::value>::type>
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iterator
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insert(const_iterator __iter, _Pair&& __v)
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{
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size_type __old_size = _Base::bucket_count();
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iterator __res = _Base::insert(__iter, std::forward<_Pair>(__v));
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_M_profile_resize(__old_size);
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return __res;
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}
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template<typename _InputIter>
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void
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insert(_InputIter __first, _InputIter __last)
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{
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size_type __old_size = _Base::bucket_count();
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_Base::insert(__first, __last);
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_M_profile_resize(__old_size);
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}
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void
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swap(unordered_multimap& __x)
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noexcept( noexcept(__x._M_base().swap(__x)) )
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{ _Base::swap(__x._M_base()); }
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void
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rehash(size_type __n)
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{
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size_type __old_size = _Base::bucket_count();
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_Base::rehash(__n);
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_M_profile_resize(__old_size);
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}
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private:
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void
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_M_profile_resize(size_type __old_size)
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{
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size_type __new_size = _Base::bucket_count();
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if (__old_size != __new_size)
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__profcxx_hashtable_resize(this, __old_size, __new_size);
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}
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};
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline void
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swap(unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ __x.swap(__y); }
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline bool
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operator==(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ return static_cast<const _GLIBCXX_STD_BASE&>(__x) == __y; }
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template<typename _Key, typename _Tp, typename _Hash,
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typename _Pred, typename _Alloc>
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inline bool
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operator!=(const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __x,
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const unordered_multimap<_Key, _Tp, _Hash, _Pred, _Alloc>& __y)
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{ return !(__x == __y); }
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} // namespace __profile
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} // namespace std
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#undef _GLIBCXX_BASE
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#undef _GLIBCXX_STD_BASE
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#endif // C++11
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#endif
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