-// Backward-compat support -*- C++ -*-
+// Hashtable implementation used by containers -*- C++ -*-
-// Copyright (C) 2001 Free Software Foundation, Inc.
+// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
+// 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 2, or (at your option)
+// 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,
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
+// 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.
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
+// 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
+// <http://www.gnu.org/licenses/>.
/*
* Copyright (c) 1996,1997
*
*/
-/* NOTE: This is an internal header file, included by other STL headers.
- * You should not attempt to use it directly.
+/** @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 _CPP_BACKWARD_HASHTABLE_H
-#define _CPP_BACKWARD_HASHTABLE_H 1
+#ifndef _HASHTABLE_H
+#define _HASHTABLE_H 1
-#include "backward_warning.h"
-#include <ext/stl_hashtable.h>
-#include "algo.h"
-#include "alloc.h"
-#include "vector.h"
+// Hashtable class, used to implement the hashed associative containers
+// hash_set, hash_map, hash_multiset, and hash_multimap.
-using __gnu_cxx::hash;
-using __gnu_cxx::hashtable;
+#include <vector>
+#include <iterator>
+#include <algorithm>
+#include <bits/stl_function.h>
+#include <backward/hash_fun.h>
-#endif /* _CPP_BACKWARD_HASHTABLE_H */
+_GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
-// Local Variables:
-// mode:C++
-// End:
+ 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<class _Val>
+ struct _Hashtable_node
+ {
+ _Hashtable_node* _M_next;
+ _Val _M_val;
+ };
+
+ template<class _Val, class _Key, class _HashFcn, class _ExtractKey,
+ class _EqualKey, class _Alloc = std::allocator<_Val> >
+ class hashtable;
+
+ template<class _Val, class _Key, class _HashFcn,
+ class _ExtractKey, class _EqualKey, class _Alloc>
+ struct _Hashtable_iterator;
+
+ template<class _Val, class _Key, class _HashFcn,
+ class _ExtractKey, class _EqualKey, class _Alloc>
+ struct _Hashtable_const_iterator;
+
+ template<class _Val, class _Key, class _HashFcn,
+ class _ExtractKey, class _EqualKey, class _Alloc>
+ 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<class _Val, class _Key, class _HashFcn,
+ class _ExtractKey, class _EqualKey, class _Alloc>
+ 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 = 28 };
+
+ static const unsigned long __stl_prime_list[_S_num_primes] =
+ {
+ 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
+ };
+
+ inline unsigned long
+ __stl_next_prime(unsigned long __n)
+ {
+ const unsigned long* __first = __stl_prime_list;
+ const unsigned long* __last = __stl_prime_list + (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 _Val, class _Key, class _HF, class _Ex,
+ class _Eq, class _All>
+ class hashtable;
+
+ template<class _Val, class _Key, class _HF, class _Ex,
+ class _Eq, class _All>
+ 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 _Val, class _Key, class _HashFcn,
+ class _ExtractKey, class _EqualKey, class _Alloc>
+ 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<value_type>::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<class _Vl, class _Ky, class _HF, class _Ex, class _Eq,
+ class _Al>
+ 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 __stl_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<iterator, bool>
+ 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<iterator, bool>
+ insert_unique_noresize(const value_type& __obj);
+
+ iterator
+ insert_equal_noresize(const value_type& __obj);
+
+ template<class _InputIterator>
+ void
+ insert_unique(_InputIterator __f, _InputIterator __l)
+ { insert_unique(__f, __l, __iterator_category(__f)); }
+
+ template<class _InputIterator>
+ void
+ insert_equal(_InputIterator __f, _InputIterator __l)
+ { insert_equal(__f, __l, __iterator_category(__f)); }
+
+ template<class _InputIterator>
+ void
+ insert_unique(_InputIterator __f, _InputIterator __l,
+ input_iterator_tag)
+ {
+ for ( ; __f != __l; ++__f)
+ insert_unique(*__f);
+ }
+
+ template<class _InputIterator>
+ void
+ insert_equal(_InputIterator __f, _InputIterator __l,
+ input_iterator_tag)
+ {
+ for ( ; __f != __l; ++__f)
+ insert_equal(*__f);
+ }
+
+ template<class _ForwardIterator>
+ 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<class _ForwardIterator>
+ 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<iterator, iterator>
+ equal_range(const key_type& __key);
+
+ pair<const_iterator, const_iterator>
+ 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<class _Val, class _Key, class _HF, class _ExK, class _EqK,
+ class _All>
+ _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<class _Val, class _Key, class _HF, class _ExK, class _EqK,
+ class _All>
+ 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<class _Val, class _Key, class _HF, class _ExK, class _EqK,
+ class _All>
+ _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<class _Val, class _Key, class _HF, class _ExK, class _EqK,
+ class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Extract, class _EqKey,
+ class _All>
+ inline void
+ swap(hashtable<_Val, _Key, _HF, _Extract, _EqKey, _All>& __ht1,
+ hashtable<_Val, _Key, _HF, _Extract, _EqKey, _All>& __ht2)
+ { __ht1.swap(__ht2); }
+
+ template<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ pair<typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::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, bool>(iterator(__cur, this), false);
+
+ _Node* __tmp = _M_new_node(__obj);
+ __tmp->_M_next = __first;
+ _M_buckets[__n] = __tmp;
+ ++_M_num_elements;
+ return pair<iterator, bool>(iterator(__tmp, this), true);
+ }
+
+ template<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ pair<typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::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<iterator, iterator> _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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ pair<typename hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::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<const_iterator, const_iterator> _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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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];
+ 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))
+ {
+ __cur->_M_next = __next->_M_next;
+ _M_delete_node(__next);
+ __next = __cur->_M_next;
+ ++__erased;
+ --_M_num_elements;
+ }
+ else
+ {
+ __cur = __next;
+ __next = __cur->_M_next;
+ }
+ }
+ if (_M_equals(_M_get_key(__first->_M_val), __key))
+ {
+ _M_buckets[__n] = __first->_M_next;
+ _M_delete_node(__first);
+ ++__erased;
+ --_M_num_elements;
+ }
+ }
+ return __erased;
+ }
+
+ template<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<hashtable*>(__first._M_ht)),
+ iterator(const_cast<_Node*>(__last._M_cur),
+ const_cast<hashtable*>(__last._M_ht)));
+ }
+
+ template<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ inline void
+ hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::
+ erase(const const_iterator& __it)
+ { erase(iterator(const_cast<_Node*>(__it._M_cur),
+ const_cast<hashtable*>(__it._M_ht))); }
+
+ template<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ void
+ hashtable<_Val, _Key, _HF, _Ex, _Eq, _All>::
+ clear()
+ {
+ 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<class _Val, class _Key, class _HF, class _Ex, class _Eq, class _All>
+ 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
+
+#endif
projects / msp430-gcc.git / blobdiff