X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fbackward%2Fhashtable.h;fp=i686-linux-gnu-4.7%2Fusr%2Finclude%2Fc%2B%2B%2F4.7%2Fbackward%2Fhashtable.h;h=dbba097d130ee629650aabaa023c1db26c5b0ecd;hb=94df942c2c7bd3457276fe5b7367623cbb8c1302;hp=0000000000000000000000000000000000000000;hpb=4dd7d9155a920895ff7b1cb6b9c9c676aa62000a;p=cross.git diff --git a/i686-linux-gnu-4.7/usr/include/c++/4.7/backward/hashtable.h b/i686-linux-gnu-4.7/usr/include/c++/4.7/backward/hashtable.h new file mode 100644 index 0000000..dbba097 --- /dev/null +++ b/i686-linux-gnu-4.7/usr/include/c++/4.7/backward/hashtable.h @@ -0,0 +1,1168 @@ +// Hashtable implementation used by containers -*- C++ -*- + +// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 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 and +// a copy of the GCC Runtime Library Exception along with this program; +// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +// . + +/* + * Copyright (c) 1996,1997 + * Silicon Graphics Computer Systems, Inc. + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Silicon Graphics makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + * + * Copyright (c) 1994 + * Hewlett-Packard Company + * + * Permission to use, copy, modify, distribute and sell this software + * and its documentation for any purpose is hereby granted without fee, + * provided that the above copyright notice appear in all copies and + * that both that copyright notice and this permission notice appear + * in supporting documentation. Hewlett-Packard Company makes no + * representations about the suitability of this software for any + * purpose. It is provided "as is" without express or implied warranty. + * + */ + +/** @file backward/hashtable.h + * This file is a GNU extension to the Standard C++ Library (possibly + * containing extensions from the HP/SGI STL subset). + */ + +#ifndef _BACKWARD_HASHTABLE_H +#define _BACKWARD_HASHTABLE_H 1 + +// Hashtable class, used to implement the hashed associative containers +// hash_set, hash_map, hash_multiset, and hash_multimap. + +#include +#include +#include +#include +#include + +namespace __gnu_cxx _GLIBCXX_VISIBILITY(default) +{ +_GLIBCXX_BEGIN_NAMESPACE_VERSION + + using std::size_t; + using std::ptrdiff_t; + using std::forward_iterator_tag; + using std::input_iterator_tag; + using std::_Construct; + using std::_Destroy; + using std::distance; + using std::vector; + using std::pair; + using std::__iterator_category; + + template + struct _Hashtable_node + { + _Hashtable_node* _M_next; + _Val _M_val; + }; + + template > + class hashtable; + + template + struct _Hashtable_iterator; + + template + struct _Hashtable_const_iterator; + + template + struct _Hashtable_iterator + { + typedef hashtable<_Val, _Key, _HashFcn, _ExtractKey, _EqualKey, _Alloc> + _Hashtable; + typedef _Hashtable_iterator<_Val, _Key, _HashFcn, + _ExtractKey, _EqualKey, _Alloc> + iterator; + typedef _Hashtable_const_iterator<_Val, _Key, _HashFcn, + _ExtractKey, _EqualKey, _Alloc> + const_iterator; + typedef _Hashtable_node<_Val> _Node; + typedef forward_iterator_tag iterator_category; + typedef _Val value_type; + typedef ptrdiff_t difference_type; + typedef size_t size_type; + typedef _Val& reference; + typedef _Val* pointer; + + _Node* _M_cur; + _Hashtable* _M_ht; + + _Hashtable_iterator(_Node* __n, _Hashtable* __tab) + : _M_cur(__n), _M_ht(__tab) { } + + _Hashtable_iterator() { } + + reference + operator*() const + { return _M_cur->_M_val; } + + pointer + operator->() const + { return &(operator*()); } + + iterator& + operator++(); + + iterator + operator++(int); + + bool + operator==(const iterator& __it) const + { return _M_cur == __it._M_cur; } + + bool + operator!=(const iterator& __it) const + { return _M_cur != __it._M_cur; } + }; + + template + struct _Hashtable_const_iterator + { + typedef hashtable<_Val, _Key, _HashFcn, _ExtractKey, _EqualKey, _Alloc> + _Hashtable; + typedef _Hashtable_iterator<_Val,_Key,_HashFcn, + _ExtractKey,_EqualKey,_Alloc> + iterator; + typedef _Hashtable_const_iterator<_Val, _Key, _HashFcn, + _ExtractKey, _EqualKey, _Alloc> + const_iterator; + typedef _Hashtable_node<_Val> _Node; + + typedef forward_iterator_tag iterator_category; + typedef _Val value_type; + typedef ptrdiff_t difference_type; + typedef size_t size_type; + typedef const _Val& reference; + typedef const _Val* pointer; + + const _Node* _M_cur; + const _Hashtable* _M_ht; + + _Hashtable_const_iterator(const _Node* __n, const _Hashtable* __tab) + : _M_cur(__n), _M_ht(__tab) { } + + _Hashtable_const_iterator() { } + + _Hashtable_const_iterator(const iterator& __it) + : _M_cur(__it._M_cur), _M_ht(__it._M_ht) { } + + reference + operator*() const + { return _M_cur->_M_val; } + + pointer + operator->() const + { return &(operator*()); } + + const_iterator& + operator++(); + + const_iterator + operator++(int); + + bool + operator==(const const_iterator& __it) const + { return _M_cur == __it._M_cur; } + + bool + operator!=(const const_iterator& __it) const + { return _M_cur != __it._M_cur; } + }; + + // Note: assumes long is at least 32 bits. + enum { _S_num_primes = 29 }; + + template + struct _Hashtable_prime_list + { + static const _PrimeType __stl_prime_list[_S_num_primes]; + + static const _PrimeType* + _S_get_prime_list(); + }; + + template const _PrimeType + _Hashtable_prime_list<_PrimeType>::__stl_prime_list[_S_num_primes] = + { + 5ul, 53ul, 97ul, 193ul, 389ul, + 769ul, 1543ul, 3079ul, 6151ul, 12289ul, + 24593ul, 49157ul, 98317ul, 196613ul, 393241ul, + 786433ul, 1572869ul, 3145739ul, 6291469ul, 12582917ul, + 25165843ul, 50331653ul, 100663319ul, 201326611ul, 402653189ul, + 805306457ul, 1610612741ul, 3221225473ul, 4294967291ul + }; + + template inline const _PrimeType* + _Hashtable_prime_list<_PrimeType>::_S_get_prime_list() + { + return __stl_prime_list; + } + + inline unsigned long + __stl_next_prime(unsigned long __n) + { + const unsigned long* __first = _Hashtable_prime_list::_S_get_prime_list(); + const unsigned long* __last = __first + (int)_S_num_primes; + const unsigned long* pos = std::lower_bound(__first, __last, __n); + return pos == __last ? *(__last - 1) : *pos; + } + + // Forward declaration of operator==. + template + class hashtable; + + template + bool + operator==(const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht1, + const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht2); + + // Hashtables handle allocators a bit differently than other + // containers do. If we're using standard-conforming allocators, then + // a hashtable unconditionally has a member variable to hold its + // allocator, even if it so happens that all instances of the + // allocator type are identical. This is because, for hashtables, + // this extra storage is negligible. Additionally, a base class + // wouldn't serve any other purposes; it wouldn't, for example, + // simplify the exception-handling code. + template + class hashtable + { + public: + typedef _Key key_type; + typedef _Val value_type; + typedef _HashFcn hasher; + typedef _EqualKey key_equal; + + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef value_type* pointer; + typedef const value_type* const_pointer; + typedef value_type& reference; + typedef const value_type& const_reference; + + hasher + hash_funct() const + { return _M_hash; } + + key_equal + key_eq() const + { return _M_equals; } + + private: + typedef _Hashtable_node<_Val> _Node; + + public: + typedef typename _Alloc::template rebind::other allocator_type; + allocator_type + get_allocator() const + { return _M_node_allocator; } + + private: + typedef typename _Alloc::template rebind<_Node>::other _Node_Alloc; + typedef typename _Alloc::template rebind<_Node*>::other _Nodeptr_Alloc; + typedef vector<_Node*, _Nodeptr_Alloc> _Vector_type; + + _Node_Alloc _M_node_allocator; + + _Node* + _M_get_node() + { return _M_node_allocator.allocate(1); } + + void + _M_put_node(_Node* __p) + { _M_node_allocator.deallocate(__p, 1); } + + private: + hasher _M_hash; + key_equal _M_equals; + _ExtractKey _M_get_key; + _Vector_type _M_buckets; + size_type _M_num_elements; + + public: + typedef _Hashtable_iterator<_Val, _Key, _HashFcn, _ExtractKey, + _EqualKey, _Alloc> + iterator; + typedef _Hashtable_const_iterator<_Val, _Key, _HashFcn, _ExtractKey, + _EqualKey, _Alloc> + const_iterator; + + friend struct + _Hashtable_iterator<_Val, _Key, _HashFcn, _ExtractKey, _EqualKey, _Alloc>; + + friend struct + _Hashtable_const_iterator<_Val, _Key, _HashFcn, _ExtractKey, + _EqualKey, _Alloc>; + + public: + hashtable(size_type __n, const _HashFcn& __hf, + const _EqualKey& __eql, const _ExtractKey& __ext, + const allocator_type& __a = allocator_type()) + : _M_node_allocator(__a), _M_hash(__hf), _M_equals(__eql), + _M_get_key(__ext), _M_buckets(__a), _M_num_elements(0) + { _M_initialize_buckets(__n); } + + hashtable(size_type __n, const _HashFcn& __hf, + const _EqualKey& __eql, + const allocator_type& __a = allocator_type()) + : _M_node_allocator(__a), _M_hash(__hf), _M_equals(__eql), + _M_get_key(_ExtractKey()), _M_buckets(__a), _M_num_elements(0) + { _M_initialize_buckets(__n); } + + hashtable(const hashtable& __ht) + : _M_node_allocator(__ht.get_allocator()), _M_hash(__ht._M_hash), + _M_equals(__ht._M_equals), _M_get_key(__ht._M_get_key), + _M_buckets(__ht.get_allocator()), _M_num_elements(0) + { _M_copy_from(__ht); } + + hashtable& + operator= (const hashtable& __ht) + { + if (&__ht != this) + { + clear(); + _M_hash = __ht._M_hash; + _M_equals = __ht._M_equals; + _M_get_key = __ht._M_get_key; + _M_copy_from(__ht); + } + return *this; + } + + ~hashtable() + { clear(); } + + size_type + size() const + { return _M_num_elements; } + + size_type + max_size() const + { return size_type(-1); } + + bool + empty() const + { return size() == 0; } + + void + swap(hashtable& __ht) + { + std::swap(_M_hash, __ht._M_hash); + std::swap(_M_equals, __ht._M_equals); + std::swap(_M_get_key, __ht._M_get_key); + _M_buckets.swap(__ht._M_buckets); + std::swap(_M_num_elements, __ht._M_num_elements); + } + + iterator + begin() + { + for (size_type __n = 0; __n < _M_buckets.size(); ++__n) + if (_M_buckets[__n]) + return iterator(_M_buckets[__n], this); + return end(); + } + + iterator + end() + { return iterator(0, this); } + + const_iterator + begin() const + { + for (size_type __n = 0; __n < _M_buckets.size(); ++__n) + if (_M_buckets[__n]) + return const_iterator(_M_buckets[__n], this); + return end(); + } + + const_iterator + end() const + { return const_iterator(0, this); } + + template + friend bool + operator==(const hashtable<_Vl, _Ky, _HF, _Ex, _Eq, _Al>&, + const hashtable<_Vl, _Ky, _HF, _Ex, _Eq, _Al>&); + + public: + size_type + bucket_count() const + { return _M_buckets.size(); } + + size_type + max_bucket_count() const + { return _Hashtable_prime_list:: + _S_get_prime_list()[(int)_S_num_primes - 1]; + } + + size_type + elems_in_bucket(size_type __bucket) const + { + size_type __result = 0; + for (_Node* __n = _M_buckets[__bucket]; __n; __n = __n->_M_next) + __result += 1; + return __result; + } + + pair + insert_unique(const value_type& __obj) + { + resize(_M_num_elements + 1); + return insert_unique_noresize(__obj); + } + + iterator + insert_equal(const value_type& __obj) + { + resize(_M_num_elements + 1); + return insert_equal_noresize(__obj); + } + + pair + insert_unique_noresize(const value_type& __obj); + + iterator + insert_equal_noresize(const value_type& __obj); + + template + void + insert_unique(_InputIterator __f, _InputIterator __l) + { insert_unique(__f, __l, __iterator_category(__f)); } + + template + void + insert_equal(_InputIterator __f, _InputIterator __l) + { insert_equal(__f, __l, __iterator_category(__f)); } + + template + void + insert_unique(_InputIterator __f, _InputIterator __l, + input_iterator_tag) + { + for ( ; __f != __l; ++__f) + insert_unique(*__f); + } + + template + void + insert_equal(_InputIterator __f, _InputIterator __l, + input_iterator_tag) + { + for ( ; __f != __l; ++__f) + insert_equal(*__f); + } + + template + void + insert_unique(_ForwardIterator __f, _ForwardIterator __l, + forward_iterator_tag) + { + size_type __n = distance(__f, __l); + resize(_M_num_elements + __n); + for ( ; __n > 0; --__n, ++__f) + insert_unique_noresize(*__f); + } + + template + void + insert_equal(_ForwardIterator __f, _ForwardIterator __l, + forward_iterator_tag) + { + size_type __n = distance(__f, __l); + resize(_M_num_elements + __n); + for ( ; __n > 0; --__n, ++__f) + insert_equal_noresize(*__f); + } + + reference + find_or_insert(const value_type& __obj); + + iterator + find(const key_type& __key) + { + size_type __n = _M_bkt_num_key(__key); + _Node* __first; + for (__first = _M_buckets[__n]; + __first && !_M_equals(_M_get_key(__first->_M_val), __key); + __first = __first->_M_next) + { } + return iterator(__first, this); + } + + const_iterator + find(const key_type& __key) const + { + size_type __n = _M_bkt_num_key(__key); + const _Node* __first; + for (__first = _M_buckets[__n]; + __first && !_M_equals(_M_get_key(__first->_M_val), __key); + __first = __first->_M_next) + { } + return const_iterator(__first, this); + } + + size_type + count(const key_type& __key) const + { + const size_type __n = _M_bkt_num_key(__key); + size_type __result = 0; + + for (const _Node* __cur = _M_buckets[__n]; __cur; + __cur = __cur->_M_next) + if (_M_equals(_M_get_key(__cur->_M_val), __key)) + ++__result; + return __result; + } + + pair + equal_range(const key_type& __key); + + pair + equal_range(const key_type& __key) const; + + size_type + erase(const key_type& __key); + + void + erase(const iterator& __it); + + void + erase(iterator __first, iterator __last); + + void + erase(const const_iterator& __it); + + void + erase(const_iterator __first, const_iterator __last); + + void + resize(size_type __num_elements_hint); + + void + clear(); + + private: + size_type + _M_next_size(size_type __n) const + { return __stl_next_prime(__n); } + + void + _M_initialize_buckets(size_type __n) + { + const size_type __n_buckets = _M_next_size(__n); + _M_buckets.reserve(__n_buckets); + _M_buckets.insert(_M_buckets.end(), __n_buckets, (_Node*) 0); + _M_num_elements = 0; + } + + size_type + _M_bkt_num_key(const key_type& __key) const + { return _M_bkt_num_key(__key, _M_buckets.size()); } + + size_type + _M_bkt_num(const value_type& __obj) const + { return _M_bkt_num_key(_M_get_key(__obj)); } + + size_type + _M_bkt_num_key(const key_type& __key, size_t __n) const + { return _M_hash(__key) % __n; } + + size_type + _M_bkt_num(const value_type& __obj, size_t __n) const + { return _M_bkt_num_key(_M_get_key(__obj), __n); } + + _Node* + _M_new_node(const value_type& __obj) + { + _Node* __n = _M_get_node(); + __n->_M_next = 0; + __try + { + this->get_allocator().construct(&__n->_M_val, __obj); + return __n; + } + __catch(...) + { + _M_put_node(__n); + __throw_exception_again; + } + } + + void + _M_delete_node(_Node* __n) + { + this->get_allocator().destroy(&__n->_M_val); + _M_put_node(__n); + } + + void + _M_erase_bucket(const size_type __n, _Node* __first, _Node* __last); + + void + _M_erase_bucket(const size_type __n, _Node* __last); + + void + _M_copy_from(const hashtable& __ht); + }; + + template + _Hashtable_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>& + _Hashtable_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>:: + operator++() + { + const _Node* __old = _M_cur; + _M_cur = _M_cur->_M_next; + if (!_M_cur) + { + size_type __bucket = _M_ht->_M_bkt_num(__old->_M_val); + while (!_M_cur && ++__bucket < _M_ht->_M_buckets.size()) + _M_cur = _M_ht->_M_buckets[__bucket]; + } + return *this; + } + + template + inline _Hashtable_iterator<_Val, _Key, _HF, _ExK, _EqK, _All> + _Hashtable_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>:: + operator++(int) + { + iterator __tmp = *this; + ++*this; + return __tmp; + } + + template + _Hashtable_const_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>& + _Hashtable_const_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>:: + operator++() + { + const _Node* __old = _M_cur; + _M_cur = _M_cur->_M_next; + if (!_M_cur) + { + size_type __bucket = _M_ht->_M_bkt_num(__old->_M_val); + while (!_M_cur && ++__bucket < _M_ht->_M_buckets.size()) + _M_cur = _M_ht->_M_buckets[__bucket]; + } + return *this; + } + + template + inline _Hashtable_const_iterator<_Val, _Key, _HF, _ExK, _EqK, _All> + _Hashtable_const_iterator<_Val, _Key, _HF, _ExK, _EqK, _All>:: + operator++(int) + { + const_iterator __tmp = *this; + ++*this; + return __tmp; + } + + template + bool + operator==(const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht1, + const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht2) + { + typedef typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::_Node _Node; + + if (__ht1._M_buckets.size() != __ht2._M_buckets.size()) + return false; + + for (size_t __n = 0; __n < __ht1._M_buckets.size(); ++__n) + { + _Node* __cur1 = __ht1._M_buckets[__n]; + _Node* __cur2 = __ht2._M_buckets[__n]; + // Check same length of lists + for (; __cur1 && __cur2; + __cur1 = __cur1->_M_next, __cur2 = __cur2->_M_next) + { } + if (__cur1 || __cur2) + return false; + // Now check one's elements are in the other + for (__cur1 = __ht1._M_buckets[__n] ; __cur1; + __cur1 = __cur1->_M_next) + { + bool _found__cur1 = false; + for (__cur2 = __ht2._M_buckets[__n]; + __cur2; __cur2 = __cur2->_M_next) + { + if (__cur1->_M_val == __cur2->_M_val) + { + _found__cur1 = true; + break; + } + } + if (!_found__cur1) + return false; + } + } + return true; + } + + template + inline bool + operator!=(const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht1, + const hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>& __ht2) + { return !(__ht1 == __ht2); } + + template + inline void + swap(hashtable<_Val, _Key, _HF, _Extract, _EqKey, _All>& __ht1, + hashtable<_Val, _Key, _HF, _Extract, _EqKey, _All>& __ht2) + { __ht1.swap(__ht2); } + + template + pair::iterator, bool> + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + insert_unique_noresize(const value_type& __obj) + { + const size_type __n = _M_bkt_num(__obj); + _Node* __first = _M_buckets[__n]; + + for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) + if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) + return pair(iterator(__cur, this), false); + + _Node* __tmp = _M_new_node(__obj); + __tmp->_M_next = __first; + _M_buckets[__n] = __tmp; + ++_M_num_elements; + return pair(iterator(__tmp, this), true); + } + + template + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::iterator + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + insert_equal_noresize(const value_type& __obj) + { + const size_type __n = _M_bkt_num(__obj); + _Node* __first = _M_buckets[__n]; + + for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) + if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) + { + _Node* __tmp = _M_new_node(__obj); + __tmp->_M_next = __cur->_M_next; + __cur->_M_next = __tmp; + ++_M_num_elements; + return iterator(__tmp, this); + } + + _Node* __tmp = _M_new_node(__obj); + __tmp->_M_next = __first; + _M_buckets[__n] = __tmp; + ++_M_num_elements; + return iterator(__tmp, this); + } + + template + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::reference + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + find_or_insert(const value_type& __obj) + { + resize(_M_num_elements + 1); + + size_type __n = _M_bkt_num(__obj); + _Node* __first = _M_buckets[__n]; + + for (_Node* __cur = __first; __cur; __cur = __cur->_M_next) + if (_M_equals(_M_get_key(__cur->_M_val), _M_get_key(__obj))) + return __cur->_M_val; + + _Node* __tmp = _M_new_node(__obj); + __tmp->_M_next = __first; + _M_buckets[__n] = __tmp; + ++_M_num_elements; + return __tmp->_M_val; + } + + template + pair::iterator, + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::iterator> + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + equal_range(const key_type& __key) + { + typedef pair _Pii; + const size_type __n = _M_bkt_num_key(__key); + + for (_Node* __first = _M_buckets[__n]; __first; + __first = __first->_M_next) + if (_M_equals(_M_get_key(__first->_M_val), __key)) + { + for (_Node* __cur = __first->_M_next; __cur; + __cur = __cur->_M_next) + if (!_M_equals(_M_get_key(__cur->_M_val), __key)) + return _Pii(iterator(__first, this), iterator(__cur, this)); + for (size_type __m = __n + 1; __m < _M_buckets.size(); ++__m) + if (_M_buckets[__m]) + return _Pii(iterator(__first, this), + iterator(_M_buckets[__m], this)); + return _Pii(iterator(__first, this), end()); + } + return _Pii(end(), end()); + } + + template + pair::const_iterator, + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::const_iterator> + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + equal_range(const key_type& __key) const + { + typedef pair _Pii; + const size_type __n = _M_bkt_num_key(__key); + + for (const _Node* __first = _M_buckets[__n]; __first; + __first = __first->_M_next) + { + if (_M_equals(_M_get_key(__first->_M_val), __key)) + { + for (const _Node* __cur = __first->_M_next; __cur; + __cur = __cur->_M_next) + if (!_M_equals(_M_get_key(__cur->_M_val), __key)) + return _Pii(const_iterator(__first, this), + const_iterator(__cur, this)); + for (size_type __m = __n + 1; __m < _M_buckets.size(); ++__m) + if (_M_buckets[__m]) + return _Pii(const_iterator(__first, this), + const_iterator(_M_buckets[__m], this)); + return _Pii(const_iterator(__first, this), end()); + } + } + return _Pii(end(), end()); + } + + template + typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::size_type + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(const key_type& __key) + { + const size_type __n = _M_bkt_num_key(__key); + _Node* __first = _M_buckets[__n]; + _Node* __saved_slot = 0; + size_type __erased = 0; + + if (__first) + { + _Node* __cur = __first; + _Node* __next = __cur->_M_next; + while (__next) + { + if (_M_equals(_M_get_key(__next->_M_val), __key)) + { + if (&_M_get_key(__next->_M_val) != &__key) + { + __cur->_M_next = __next->_M_next; + _M_delete_node(__next); + __next = __cur->_M_next; + ++__erased; + --_M_num_elements; + } + else + { + __saved_slot = __cur; + __cur = __next; + __next = __cur->_M_next; + } + } + else + { + __cur = __next; + __next = __cur->_M_next; + } + } + bool __delete_first = _M_equals(_M_get_key(__first->_M_val), __key); + if (__saved_slot) + { + __next = __saved_slot->_M_next; + __saved_slot->_M_next = __next->_M_next; + _M_delete_node(__next); + ++__erased; + --_M_num_elements; + } + if (__delete_first) + { + _M_buckets[__n] = __first->_M_next; + _M_delete_node(__first); + ++__erased; + --_M_num_elements; + } + } + return __erased; + } + + template + void hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(const iterator& __it) + { + _Node* __p = __it._M_cur; + if (__p) + { + const size_type __n = _M_bkt_num(__p->_M_val); + _Node* __cur = _M_buckets[__n]; + + if (__cur == __p) + { + _M_buckets[__n] = __cur->_M_next; + _M_delete_node(__cur); + --_M_num_elements; + } + else + { + _Node* __next = __cur->_M_next; + while (__next) + { + if (__next == __p) + { + __cur->_M_next = __next->_M_next; + _M_delete_node(__next); + --_M_num_elements; + break; + } + else + { + __cur = __next; + __next = __cur->_M_next; + } + } + } + } + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(iterator __first, iterator __last) + { + size_type __f_bucket = __first._M_cur ? _M_bkt_num(__first._M_cur->_M_val) + : _M_buckets.size(); + + size_type __l_bucket = __last._M_cur ? _M_bkt_num(__last._M_cur->_M_val) + : _M_buckets.size(); + + if (__first._M_cur == __last._M_cur) + return; + else if (__f_bucket == __l_bucket) + _M_erase_bucket(__f_bucket, __first._M_cur, __last._M_cur); + else + { + _M_erase_bucket(__f_bucket, __first._M_cur, 0); + for (size_type __n = __f_bucket + 1; __n < __l_bucket; ++__n) + _M_erase_bucket(__n, 0); + if (__l_bucket != _M_buckets.size()) + _M_erase_bucket(__l_bucket, __last._M_cur); + } + } + + template + inline void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(const_iterator __first, const_iterator __last) + { + erase(iterator(const_cast<_Node*>(__first._M_cur), + const_cast(__first._M_ht)), + iterator(const_cast<_Node*>(__last._M_cur), + const_cast(__last._M_ht))); + } + + template + inline void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + erase(const const_iterator& __it) + { erase(iterator(const_cast<_Node*>(__it._M_cur), + const_cast(__it._M_ht))); } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + resize(size_type __num_elements_hint) + { + const size_type __old_n = _M_buckets.size(); + if (__num_elements_hint > __old_n) + { + const size_type __n = _M_next_size(__num_elements_hint); + if (__n > __old_n) + { + _Vector_type __tmp(__n, (_Node*)(0), _M_buckets.get_allocator()); + __try + { + for (size_type __bucket = 0; __bucket < __old_n; ++__bucket) + { + _Node* __first = _M_buckets[__bucket]; + while (__first) + { + size_type __new_bucket = _M_bkt_num(__first->_M_val, + __n); + _M_buckets[__bucket] = __first->_M_next; + __first->_M_next = __tmp[__new_bucket]; + __tmp[__new_bucket] = __first; + __first = _M_buckets[__bucket]; + } + } + _M_buckets.swap(__tmp); + } + __catch(...) + { + for (size_type __bucket = 0; __bucket < __tmp.size(); + ++__bucket) + { + while (__tmp[__bucket]) + { + _Node* __next = __tmp[__bucket]->_M_next; + _M_delete_node(__tmp[__bucket]); + __tmp[__bucket] = __next; + } + } + __throw_exception_again; + } + } + } + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + _M_erase_bucket(const size_type __n, _Node* __first, _Node* __last) + { + _Node* __cur = _M_buckets[__n]; + if (__cur == __first) + _M_erase_bucket(__n, __last); + else + { + _Node* __next; + for (__next = __cur->_M_next; + __next != __first; + __cur = __next, __next = __cur->_M_next) + ; + while (__next != __last) + { + __cur->_M_next = __next->_M_next; + _M_delete_node(__next); + __next = __cur->_M_next; + --_M_num_elements; + } + } + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + _M_erase_bucket(const size_type __n, _Node* __last) + { + _Node* __cur = _M_buckets[__n]; + while (__cur != __last) + { + _Node* __next = __cur->_M_next; + _M_delete_node(__cur); + __cur = __next; + _M_buckets[__n] = __cur; + --_M_num_elements; + } + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + clear() + { + if (_M_num_elements == 0) + return; + + for (size_type __i = 0; __i < _M_buckets.size(); ++__i) + { + _Node* __cur = _M_buckets[__i]; + while (__cur != 0) + { + _Node* __next = __cur->_M_next; + _M_delete_node(__cur); + __cur = __next; + } + _M_buckets[__i] = 0; + } + _M_num_elements = 0; + } + + template + void + hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>:: + _M_copy_from(const hashtable& __ht) + { + _M_buckets.clear(); + _M_buckets.reserve(__ht._M_buckets.size()); + _M_buckets.insert(_M_buckets.end(), __ht._M_buckets.size(), (_Node*) 0); + __try + { + for (size_type __i = 0; __i < __ht._M_buckets.size(); ++__i) { + const _Node* __cur = __ht._M_buckets[__i]; + if (__cur) + { + _Node* __local_copy = _M_new_node(__cur->_M_val); + _M_buckets[__i] = __local_copy; + + for (_Node* __next = __cur->_M_next; + __next; + __cur = __next, __next = __cur->_M_next) + { + __local_copy->_M_next = _M_new_node(__next->_M_val); + __local_copy = __local_copy->_M_next; + } + } + } + _M_num_elements = __ht._M_num_elements; + } + __catch(...) + { + clear(); + __throw_exception_again; + } + } + +_GLIBCXX_END_NAMESPACE_VERSION +} // namespace + +#endif