mirror of
https://github.com/reactos/reactos.git
synced 2024-08-26 05:08:39 +00:00
659 lines
22 KiB
C++
659 lines
22 KiB
C++
/*
|
|
*
|
|
* Copyright (c) 1994
|
|
* Hewlett-Packard Company
|
|
*
|
|
* Copyright (c) 1996,1997
|
|
* Silicon Graphics Computer Systems, Inc.
|
|
*
|
|
* Copyright (c) 1997
|
|
* Moscow Center for SPARC Technology
|
|
*
|
|
* Copyright (c) 1999
|
|
* Boris Fomitchev
|
|
*
|
|
* This material is provided "as is", with absolutely no warranty expressed
|
|
* or implied. Any use is at your own risk.
|
|
*
|
|
* Permission to use or copy this software for any purpose is hereby granted
|
|
* without fee, provided the above notices are retained on all copies.
|
|
* Permission to modify the code and to distribute modified code is granted,
|
|
* provided the above notices are retained, and a notice that the code was
|
|
* modified is included with the above copyright notice.
|
|
*
|
|
*/
|
|
|
|
/* NOTE: This is an internal header file, included by other STL headers.
|
|
* You should not attempt to use it directly.
|
|
*/
|
|
|
|
#ifndef _STLP_INTERNAL_HASHTABLE_H
|
|
#define _STLP_INTERNAL_HASHTABLE_H
|
|
|
|
#ifndef _STLP_INTERNAL_VECTOR_H
|
|
# include <stl/_vector.h>
|
|
#endif
|
|
|
|
#ifndef _STLP_INTERNAL_SLIST_H
|
|
# include <stl/_slist.h>
|
|
#endif
|
|
|
|
#ifndef _STLP_INTERNAL_ITERATOR_H
|
|
# include <stl/_iterator.h>
|
|
#endif
|
|
|
|
#ifndef _STLP_INTERNAL_FUNCTION_BASE_H
|
|
# include <stl/_function_base.h>
|
|
#endif
|
|
|
|
#ifndef _STLP_INTERNAL_ALGOBASE_H
|
|
# include <stl/_algobase.h>
|
|
#endif
|
|
|
|
#ifndef _STLP_HASH_FUN_H
|
|
# include <stl/_hash_fun.h>
|
|
#endif
|
|
|
|
/*
|
|
* Hashtable class, used to implement the hashed associative containers
|
|
* hash_set, hash_map, hash_multiset, hash_multimap,
|
|
* unordered_set, unordered_map, unordered_multiset, unordered_multimap.
|
|
*/
|
|
|
|
_STLP_BEGIN_NAMESPACE
|
|
|
|
#if defined (_STLP_USE_TEMPLATE_EXPORT)
|
|
//Export of the classes used to represent buckets in the hashtable implementation.
|
|
# if !defined (_STLP_USE_PTR_SPECIALIZATIONS)
|
|
//If pointer specialization is enabled vector<_Slist_node_base*> will use the void*
|
|
//storage type for which internal classes have already been exported.
|
|
_STLP_EXPORT_TEMPLATE_CLASS allocator<_STLP_PRIV _Slist_node_base*>;
|
|
|
|
_STLP_MOVE_TO_PRIV_NAMESPACE
|
|
_STLP_EXPORT_TEMPLATE_CLASS _STLP_alloc_proxy<_Slist_node_base**, _Slist_node_base*,
|
|
allocator<_Slist_node_base*> >;
|
|
_STLP_EXPORT_TEMPLATE_CLASS _Vector_base<_Slist_node_base*,
|
|
allocator<_Slist_node_base*> >;
|
|
_STLP_MOVE_TO_STD_NAMESPACE
|
|
# endif
|
|
|
|
# if defined (_STLP_DEBUG)
|
|
_STLP_MOVE_TO_PRIV_NAMESPACE
|
|
# define _STLP_NON_DBG_VECTOR _STLP_NON_DBG_NAME(vector)
|
|
_STLP_EXPORT_TEMPLATE_CLASS __construct_checker<_STLP_NON_DBG_VECTOR<_Slist_node_base*, allocator<_Slist_node_base*> > >;
|
|
_STLP_EXPORT_TEMPLATE_CLASS _STLP_NON_DBG_VECTOR<_Slist_node_base*, allocator<_Slist_node_base*> >;
|
|
# undef _STLP_NON_DBG_VECTOR
|
|
_STLP_MOVE_TO_STD_NAMESPACE
|
|
# endif
|
|
|
|
_STLP_EXPORT_TEMPLATE_CLASS vector<_STLP_PRIV _Slist_node_base*,
|
|
allocator<_STLP_PRIV _Slist_node_base*> >;
|
|
#endif
|
|
|
|
#if defined (_STLP_DEBUG)
|
|
# define hashtable _STLP_NON_DBG_NAME(hashtable)
|
|
_STLP_MOVE_TO_PRIV_NAMESPACE
|
|
#endif
|
|
|
|
// some compilers require the names of template parameters to be the same
|
|
template <class _Val, class _Key, class _HF,
|
|
class _Traits, class _ExK, class _EqK, class _All>
|
|
class hashtable;
|
|
|
|
#if !defined (_STLP_DEBUG)
|
|
_STLP_MOVE_TO_PRIV_NAMESPACE
|
|
#endif
|
|
|
|
template <class _BaseIte, class _Traits>
|
|
struct _Ht_iterator {
|
|
typedef typename _Traits::_ConstTraits _ConstTraits;
|
|
typedef typename _Traits::_NonConstTraits _NonConstTraits;
|
|
|
|
typedef _Ht_iterator<_BaseIte,_Traits> _Self;
|
|
|
|
typedef typename _Traits::value_type value_type;
|
|
typedef typename _Traits::pointer pointer;
|
|
typedef typename _Traits::reference reference;
|
|
typedef forward_iterator_tag iterator_category;
|
|
typedef ptrdiff_t difference_type;
|
|
typedef size_t size_type;
|
|
|
|
typedef _Ht_iterator<_BaseIte, _NonConstTraits> iterator;
|
|
typedef _Ht_iterator<_BaseIte, _ConstTraits> const_iterator;
|
|
|
|
_Ht_iterator() {}
|
|
//copy constructor for iterator and constructor from iterator for const_iterator
|
|
_Ht_iterator(const iterator& __it) : _M_ite(__it._M_ite) {}
|
|
_Ht_iterator(_BaseIte __it) : _M_ite(__it) {}
|
|
|
|
reference operator*() const {
|
|
return *_M_ite;
|
|
}
|
|
_STLP_DEFINE_ARROW_OPERATOR
|
|
|
|
_Self& operator++() {
|
|
++_M_ite;
|
|
return *this;
|
|
}
|
|
_Self operator++(int) {
|
|
_Self __tmp = *this;
|
|
++*this;
|
|
return __tmp;
|
|
}
|
|
|
|
bool operator == (const_iterator __rhs) const {
|
|
return _M_ite == __rhs._M_ite;
|
|
}
|
|
bool operator != (const_iterator __rhs) const {
|
|
return _M_ite != __rhs._M_ite;
|
|
}
|
|
|
|
_BaseIte _M_ite;
|
|
};
|
|
|
|
_STLP_MOVE_TO_STD_NAMESPACE
|
|
|
|
#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
|
|
template <class _BaseIte, class _Traits>
|
|
struct __type_traits<_STLP_PRIV _Ht_iterator<_BaseIte, _Traits> > {
|
|
typedef __false_type has_trivial_default_constructor;
|
|
typedef __true_type has_trivial_copy_constructor;
|
|
typedef __true_type has_trivial_assignment_operator;
|
|
typedef __true_type has_trivial_destructor;
|
|
typedef __false_type is_POD_type;
|
|
};
|
|
#endif /* _STLP_CLASS_PARTIAL_SPECIALIZATION */
|
|
|
|
#if defined (_STLP_USE_OLD_HP_ITERATOR_QUERIES)
|
|
template <class _BaseIte, class _Traits>
|
|
inline
|
|
# if defined (_STLP_NESTED_TYPE_PARAM_BUG)
|
|
_STLP_TYPENAME_ON_RETURN_TYPE _Traits::value_type *
|
|
# else
|
|
_STLP_TYPENAME_ON_RETURN_TYPE _STLP_PRIV _Ht_iterator<_BaseIte,_Traits>::value_type *
|
|
# endif
|
|
value_type(const _STLP_PRIV _Ht_iterator<_BaseIte,_Traits>&) {
|
|
typedef _STLP_TYPENAME _STLP_PRIV _Ht_iterator<_BaseIte,_Traits>::value_type _Val;
|
|
return (_Val*) 0;
|
|
}
|
|
template <class _BaseIte, class _Traits>
|
|
inline forward_iterator_tag iterator_category(const _STLP_PRIV _Ht_iterator<_BaseIte,_Traits>&)
|
|
{ return forward_iterator_tag(); }
|
|
template <class _BaseIte, class _Traits>
|
|
inline ptrdiff_t* distance_type(const _STLP_PRIV _Ht_iterator<_BaseIte,_Traits>&)
|
|
{ return (ptrdiff_t*) 0; }
|
|
#endif
|
|
|
|
_STLP_MOVE_TO_PRIV_NAMESPACE
|
|
|
|
template <class _Dummy>
|
|
class _Stl_prime {
|
|
// Returns begining of primes list and size by reference.
|
|
static const size_t* _S_primes(size_t&);
|
|
public:
|
|
//Returns the maximum number of buckets handled by the hashtable implementation
|
|
static size_t _STLP_CALL _S_max_nb_buckets();
|
|
|
|
//Returns the bucket size next to a required size
|
|
static size_t _STLP_CALL _S_next_size(size_t);
|
|
|
|
// Returns the bucket range containing sorted list of prime numbers <= __hint.
|
|
static void _STLP_CALL _S_prev_sizes(size_t __hint, const size_t *&__begin, const size_t *&__end);
|
|
};
|
|
|
|
#if defined (_STLP_USE_TEMPLATE_EXPORT)
|
|
_STLP_EXPORT_TEMPLATE_CLASS _Stl_prime<bool>;
|
|
#endif
|
|
|
|
typedef _Stl_prime<bool> _Stl_prime_type;
|
|
|
|
#if !defined (_STLP_DEBUG)
|
|
_STLP_MOVE_TO_STD_NAMESPACE
|
|
#endif
|
|
|
|
/*
|
|
* 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 _HF,
|
|
class _Traits, class _ExK, class _EqK, class _All>
|
|
class hashtable {
|
|
typedef hashtable<_Val, _Key, _HF, _Traits, _ExK, _EqK, _All> _Self;
|
|
typedef typename _Traits::_NonConstTraits _NonConstTraits;
|
|
typedef typename _Traits::_ConstTraits _ConstTraits;
|
|
typedef typename _Traits::_NonConstLocalTraits _NonConstLocalTraits;
|
|
typedef typename _Traits::_ConstLocalTraits _ConstLocalTraits;
|
|
|
|
public:
|
|
typedef _Key key_type;
|
|
typedef _Val value_type;
|
|
typedef _HF hasher;
|
|
typedef _EqK key_equal;
|
|
|
|
typedef size_t size_type;
|
|
typedef ptrdiff_t difference_type;
|
|
typedef typename _NonConstTraits::pointer pointer;
|
|
typedef const value_type* const_pointer;
|
|
typedef typename _NonConstTraits::reference reference;
|
|
typedef const value_type& const_reference;
|
|
typedef forward_iterator_tag _Iterator_category;
|
|
|
|
hasher hash_funct() const { return _M_hash; }
|
|
key_equal key_eq() const { return _M_equals; }
|
|
|
|
private:
|
|
_STLP_FORCE_ALLOCATORS(_Val, _All)
|
|
#if defined (_STLP_DEBUG)
|
|
typedef _STLP_PRIV _STLP_NON_DBG_NAME(slist)<value_type, _All> _ElemsCont;
|
|
#else
|
|
typedef slist<value_type, _All> _ElemsCont;
|
|
#endif
|
|
typedef typename _ElemsCont::iterator _ElemsIte;
|
|
typedef typename _ElemsCont::const_iterator _ElemsConstIte;
|
|
typedef _STLP_PRIV _Slist_node_base _BucketType;
|
|
typedef typename _Alloc_traits<_BucketType*, _All>::allocator_type _BucketAllocType;
|
|
/*
|
|
* We are going to use vector of _Slist_node_base pointers for 2 reasons:
|
|
* - limit code bloat, all hashtable instanciation use the same buckets representation.
|
|
* - avoid _STLP_DEBUG performance trouble: with a vector of iterator on slist the resize
|
|
* method would be too slow because the slist::splice_after method become linear on
|
|
* the number of iterators in the buckets rather than constant in time as the iterator
|
|
* has to be move from a slist to the other.
|
|
*/
|
|
#if defined (_STLP_DEBUG)
|
|
typedef _STLP_PRIV _STLP_NON_DBG_NAME(vector)<_BucketType*, _BucketAllocType> _BucketVector;
|
|
#else
|
|
typedef vector<_BucketType*, _BucketAllocType> _BucketVector;
|
|
#endif
|
|
|
|
hasher _M_hash;
|
|
key_equal _M_equals;
|
|
_ElemsCont _M_elems;
|
|
_BucketVector _M_buckets;
|
|
size_type _M_num_elements;
|
|
float _M_max_load_factor;
|
|
_STLP_KEY_TYPE_FOR_CONT_EXT(key_type)
|
|
|
|
static const key_type& _M_get_key(const value_type& __val) {
|
|
_ExK k;
|
|
return k(__val);
|
|
}
|
|
public:
|
|
typedef _STLP_PRIV _Ht_iterator<_ElemsIte, _NonConstTraits> iterator;
|
|
typedef _STLP_PRIV _Ht_iterator<_ElemsIte, _ConstTraits> const_iterator;
|
|
//TODO: Avoids this debug check and make the local_iterator different from
|
|
//iterator in debug mode too.
|
|
#if !defined (_STLP_DEBUG)
|
|
typedef _STLP_PRIV _Ht_iterator<_ElemsIte, _NonConstLocalTraits> local_iterator;
|
|
typedef _STLP_PRIV _Ht_iterator<_ElemsIte, _ConstLocalTraits> const_local_iterator;
|
|
#else
|
|
typedef iterator local_iterator;
|
|
typedef const_iterator const_local_iterator;
|
|
#endif
|
|
|
|
typedef _All allocator_type;
|
|
allocator_type get_allocator() const { return _M_elems.get_allocator(); }
|
|
|
|
#if !defined (_STLP_DONT_SUP_DFLT_PARAM)
|
|
hashtable(size_type __n,
|
|
const _HF& __hf,
|
|
const _EqK& __eql,
|
|
const allocator_type& __a = allocator_type())
|
|
#else
|
|
hashtable(size_type __n,
|
|
const _HF& __hf,
|
|
const _EqK& __eql)
|
|
: _M_hash(__hf),
|
|
_M_equals(__eql),
|
|
_M_elems(allocator_type()),
|
|
_M_buckets(_STLP_CONVERT_ALLOCATOR(__a, _BucketType*)),
|
|
_M_num_elements(0),
|
|
_M_max_load_factor(1.0f)
|
|
{ _M_initialize_buckets(__n); }
|
|
|
|
hashtable(size_type __n,
|
|
const _HF& __hf,
|
|
const _EqK& __eql,
|
|
const allocator_type& __a)
|
|
#endif
|
|
: _M_hash(__hf),
|
|
_M_equals(__eql),
|
|
_M_elems(__a),
|
|
_M_buckets(_STLP_CONVERT_ALLOCATOR(__a, _BucketType*)),
|
|
_M_num_elements(0),
|
|
_M_max_load_factor(1.0f)
|
|
{ _M_initialize_buckets(__n); }
|
|
|
|
hashtable(const _Self& __ht)
|
|
: _M_hash(__ht._M_hash),
|
|
_M_equals(__ht._M_equals),
|
|
_M_elems(__ht.get_allocator()),
|
|
_M_buckets(_STLP_CONVERT_ALLOCATOR(__ht.get_allocator(), _BucketType*)),
|
|
_M_num_elements(0),
|
|
_M_max_load_factor(1.0f)
|
|
{ _M_copy_from(__ht); }
|
|
|
|
#if !defined (_STLP_NO_MOVE_SEMANTIC)
|
|
hashtable(__move_source<_Self> src)
|
|
: _M_hash(_STLP_PRIV _AsMoveSource(src.get()._M_hash)),
|
|
_M_equals(_STLP_PRIV _AsMoveSource(src.get()._M_equals)),
|
|
_M_elems(__move_source<_ElemsCont>(src.get()._M_elems)),
|
|
_M_buckets(__move_source<_BucketVector>(src.get()._M_buckets)),
|
|
_M_num_elements(src.get()._M_num_elements),
|
|
_M_max_load_factor(src.get()._M_max_load_factor) {}
|
|
#endif
|
|
|
|
_Self& operator= (const _Self& __ht) {
|
|
if (&__ht != this) {
|
|
clear();
|
|
_M_hash = __ht._M_hash;
|
|
_M_equals = __ht._M_equals;
|
|
_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(_Self& __ht) {
|
|
_STLP_STD::swap(_M_hash, __ht._M_hash);
|
|
_STLP_STD::swap(_M_equals, __ht._M_equals);
|
|
_M_elems.swap(__ht._M_elems);
|
|
_M_buckets.swap(__ht._M_buckets);
|
|
_STLP_STD::swap(_M_num_elements, __ht._M_num_elements);
|
|
_STLP_STD::swap(_M_max_load_factor, __ht._M_max_load_factor);
|
|
}
|
|
|
|
iterator begin() { return _M_elems.begin(); }
|
|
iterator end() { return _M_elems.end(); }
|
|
local_iterator begin(size_type __n) { return _ElemsIte(_M_buckets[__n]); }
|
|
local_iterator end(size_type __n) { return _ElemsIte(_M_buckets[__n + 1]); }
|
|
|
|
const_iterator begin() const { return __CONST_CAST(_ElemsCont&, _M_elems).begin(); }
|
|
const_iterator end() const { return __CONST_CAST(_ElemsCont&, _M_elems).end(); }
|
|
const_local_iterator begin(size_type __n) const { return _ElemsIte(_M_buckets[__n]); }
|
|
const_local_iterator end(size_type __n) const { return _ElemsIte(_M_buckets[__n + 1]); }
|
|
|
|
//static bool _STLP_CALL _M_equal (const _Self&, const _Self&);
|
|
|
|
public:
|
|
//The number of buckets is size() - 1 because the last bucket always contains
|
|
//_M_elems.end() to make algo easier to implement.
|
|
size_type bucket_count() const { return _M_buckets.size() - 1; }
|
|
size_type max_bucket_count() const { return _STLP_PRIV _Stl_prime_type::_S_max_nb_buckets(); }
|
|
size_type elems_in_bucket(size_type __bucket) const
|
|
{ return _STLP_STD::distance(_ElemsIte(_M_buckets[__bucket]), _ElemsIte(_M_buckets[__bucket + 1])); }
|
|
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
size_type bucket(const _KT& __k) const { return _M_bkt_num_key(__k); }
|
|
|
|
// hash policy
|
|
float load_factor() const { return (float)size() / (float)bucket_count(); }
|
|
float max_load_factor() const { return _M_max_load_factor; }
|
|
void max_load_factor(float __z) {
|
|
_M_max_load_factor = __z;
|
|
_M_resize();
|
|
}
|
|
|
|
pair<iterator, bool> insert_unique(const value_type& __obj) {
|
|
_M_enlarge(_M_num_elements + 1);
|
|
return insert_unique_noresize(__obj);
|
|
}
|
|
|
|
iterator insert_equal(const value_type& __obj) {
|
|
_M_enlarge(_M_num_elements + 1);
|
|
return insert_equal_noresize(__obj);
|
|
}
|
|
|
|
protected:
|
|
iterator _M_insert_noresize(size_type __n, const value_type& __obj);
|
|
public:
|
|
pair<iterator, bool> insert_unique_noresize(const value_type& __obj);
|
|
iterator insert_equal_noresize(const value_type& __obj);
|
|
|
|
#if defined (_STLP_MEMBER_TEMPLATES)
|
|
template <class _InputIterator>
|
|
void insert_unique(_InputIterator __f, _InputIterator __l)
|
|
{ insert_unique(__f, __l, _STLP_ITERATOR_CATEGORY(__f, _InputIterator)); }
|
|
|
|
template <class _InputIterator>
|
|
void insert_equal(_InputIterator __f, _InputIterator __l)
|
|
{ insert_equal(__f, __l, _STLP_ITERATOR_CATEGORY(__f, _InputIterator)); }
|
|
|
|
template <class _InputIterator>
|
|
void insert_unique(_InputIterator __f, _InputIterator __l,
|
|
const input_iterator_tag &) {
|
|
for ( ; __f != __l; ++__f)
|
|
insert_unique(*__f);
|
|
}
|
|
|
|
template <class _InputIterator>
|
|
void insert_equal(_InputIterator __f, _InputIterator __l,
|
|
const input_iterator_tag &) {
|
|
for ( ; __f != __l; ++__f)
|
|
insert_equal(*__f);
|
|
}
|
|
|
|
template <class _ForwardIterator>
|
|
void insert_unique(_ForwardIterator __f, _ForwardIterator __l,
|
|
const forward_iterator_tag &) {
|
|
size_type __n = _STLP_STD::distance(__f, __l);
|
|
_M_enlarge(_M_num_elements + __n);
|
|
for ( ; __n > 0; --__n, ++__f)
|
|
insert_unique_noresize(*__f);
|
|
}
|
|
|
|
template <class _ForwardIterator>
|
|
void insert_equal(_ForwardIterator __f, _ForwardIterator __l,
|
|
const forward_iterator_tag &) {
|
|
size_type __n = _STLP_STD::distance(__f, __l);
|
|
_M_enlarge(_M_num_elements + __n);
|
|
for ( ; __n > 0; --__n, ++__f)
|
|
insert_equal_noresize(*__f);
|
|
}
|
|
|
|
#else /* _STLP_MEMBER_TEMPLATES */
|
|
void insert_unique(const value_type* __f, const value_type* __l) {
|
|
size_type __n = __l - __f;
|
|
_M_enlarge(_M_num_elements + __n);
|
|
for ( ; __n > 0; --__n, ++__f)
|
|
insert_unique_noresize(*__f);
|
|
}
|
|
|
|
void insert_equal(const value_type* __f, const value_type* __l) {
|
|
size_type __n = __l - __f;
|
|
_M_enlarge(_M_num_elements + __n);
|
|
for ( ; __n > 0; --__n, ++__f)
|
|
insert_equal_noresize(*__f);
|
|
}
|
|
|
|
void insert_unique(const_iterator __f, const_iterator __l) {
|
|
size_type __n = _STLP_STD::distance(__f, __l);
|
|
_M_enlarge(_M_num_elements + __n);
|
|
for ( ; __n > 0; --__n, ++__f)
|
|
insert_unique_noresize(*__f);
|
|
}
|
|
|
|
void insert_equal(const_iterator __f, const_iterator __l) {
|
|
size_type __n = _STLP_STD::distance(__f, __l);
|
|
_M_enlarge(_M_num_elements + __n);
|
|
for ( ; __n > 0; --__n, ++__f)
|
|
insert_equal_noresize(*__f);
|
|
}
|
|
#endif /*_STLP_MEMBER_TEMPLATES */
|
|
|
|
//reference find_or_insert(const value_type& __obj);
|
|
|
|
private:
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
_ElemsIte _M_find(const _KT& __key) const {
|
|
size_type __n = _M_bkt_num_key(__key);
|
|
_ElemsIte __first(_M_buckets[__n]);
|
|
_ElemsIte __last(_M_buckets[__n + 1]);
|
|
for ( ; (__first != __last) && !_M_equals(_M_get_key(*__first), __key); ++__first);
|
|
if (__first != __last)
|
|
return __first;
|
|
else
|
|
return __CONST_CAST(_ElemsCont&, _M_elems).end();
|
|
}
|
|
|
|
public:
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
iterator find(const _KT& __key) { return _M_find(__key); }
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
const_iterator find(const _KT& __key) const { return _M_find(__key); }
|
|
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
size_type count(const _KT& __key) const {
|
|
const size_type __n = _M_bkt_num_key(__key);
|
|
|
|
_ElemsIte __cur(_M_buckets[__n]);
|
|
_ElemsIte __last(_M_buckets[__n + 1]);
|
|
for (; __cur != __last; ++__cur) {
|
|
if (_M_equals(_M_get_key(*__cur), __key)) {
|
|
size_type __result = 1;
|
|
for (++__cur;
|
|
__cur != __last && _M_equals(_M_get_key(*__cur), __key);
|
|
++__result, ++__cur);
|
|
return __result;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
pair<iterator, iterator> equal_range(const _KT& __key) {
|
|
typedef pair<iterator, iterator> _Pii;
|
|
const size_type __n = _M_bkt_num_key(__key);
|
|
|
|
for (_ElemsIte __first(_M_buckets[__n]), __last(_M_buckets[__n + 1]);
|
|
__first != __last; ++__first) {
|
|
if (_M_equals(_M_get_key(*__first), __key)) {
|
|
_ElemsIte __cur(__first);
|
|
for (++__cur; (__cur != __last) && _M_equals(_M_get_key(*__cur), __key); ++__cur);
|
|
return _Pii(__first, __cur);
|
|
}
|
|
}
|
|
return _Pii(end(), end());
|
|
}
|
|
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
pair<const_iterator, const_iterator> equal_range(const _KT& __key) const {
|
|
typedef pair<const_iterator, const_iterator> _Pii;
|
|
const size_type __n = _M_bkt_num_key(__key);
|
|
|
|
for (_ElemsIte __first(_M_buckets[__n]), __last(_M_buckets[__n + 1]);
|
|
__first != __last; ++__first) {
|
|
if (_M_equals(_M_get_key(*__first), __key)) {
|
|
_ElemsIte __cur(__first);
|
|
for (++__cur; (__cur != __last) && _M_equals(_M_get_key(*__cur), __key); ++__cur);
|
|
return _Pii(__first, __cur);
|
|
}
|
|
}
|
|
return _Pii(end(), end());
|
|
}
|
|
|
|
size_type erase(const key_type& __key);
|
|
void erase(const_iterator __it);
|
|
void erase(const_iterator __first, const_iterator __last);
|
|
|
|
private:
|
|
void _M_enlarge(size_type __n);
|
|
void _M_reduce();
|
|
void _M_resize();
|
|
void _M_rehash(size_type __num_buckets);
|
|
#if defined (_STLP_DEBUG)
|
|
void _M_check() const;
|
|
#endif
|
|
|
|
public:
|
|
void rehash(size_type __num_buckets_hint);
|
|
void resize(size_type __num_buckets_hint)
|
|
{ rehash(__num_buckets_hint); }
|
|
void clear();
|
|
|
|
// this is for hash_map::operator[]
|
|
reference _M_insert(const value_type& __obj);
|
|
|
|
private:
|
|
//__n is set to the first bucket that has to be modified if any
|
|
//erase/insert operation is done after the returned iterator.
|
|
iterator _M_before_begin(size_type &__n) const;
|
|
|
|
static iterator _S_before_begin(const _ElemsCont& __elems, const _BucketVector& __buckets,
|
|
size_type &__n);
|
|
|
|
void _M_initialize_buckets(size_type __n) {
|
|
const size_type __n_buckets = _STLP_PRIV _Stl_prime_type::_S_next_size(__n) + 1;
|
|
_M_buckets.reserve(__n_buckets);
|
|
_M_buckets.assign(__n_buckets, __STATIC_CAST(_BucketType*, 0));
|
|
}
|
|
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
size_type _M_bkt_num_key(const _KT& __key) const
|
|
{ return _M_bkt_num_key(__key, bucket_count()); }
|
|
|
|
size_type _M_bkt_num(const value_type& __obj) const
|
|
{ return _M_bkt_num_key(_M_get_key(__obj)); }
|
|
|
|
_STLP_TEMPLATE_FOR_CONT_EXT
|
|
size_type _M_bkt_num_key(const _KT& __key, size_type __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); }
|
|
|
|
void _M_copy_from(const _Self& __ht);
|
|
};
|
|
|
|
#if defined (_STLP_DEBUG)
|
|
# undef hashtable
|
|
_STLP_MOVE_TO_STD_NAMESPACE
|
|
#endif
|
|
|
|
_STLP_END_NAMESPACE
|
|
|
|
#if !defined (_STLP_LINK_TIME_INSTANTIATION)
|
|
# include <stl/_hashtable.c>
|
|
#endif
|
|
|
|
#if defined (_STLP_DEBUG)
|
|
# include <stl/debug/_hashtable.h>
|
|
#endif
|
|
|
|
_STLP_BEGIN_NAMESPACE
|
|
|
|
#define _STLP_TEMPLATE_HEADER template <class _Val, class _Key, class _HF, class _Traits, class _ExK, class _EqK, class _All>
|
|
#define _STLP_TEMPLATE_CONTAINER hashtable<_Val,_Key,_HF,_Traits,_ExK,_EqK,_All>
|
|
#include <stl/_relops_hash_cont.h>
|
|
#undef _STLP_TEMPLATE_CONTAINER
|
|
#undef _STLP_TEMPLATE_HEADER
|
|
|
|
#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION) && !defined (_STLP_NO_MOVE_SEMANTIC)
|
|
template <class _Val, class _Key, class _HF, class _Traits, class _ExK, class _EqK, class _All>
|
|
struct __move_traits<hashtable<_Val, _Key, _HF, _Traits, _ExK, _EqK, _All> > {
|
|
//Hashtables are movable:
|
|
typedef __true_type implemented;
|
|
|
|
//Completeness depends on many template parameters, for the moment we consider it not complete:
|
|
typedef __false_type complete;
|
|
};
|
|
#endif
|
|
|
|
_STLP_END_NAMESPACE
|
|
|
|
#endif /* _STLP_INTERNAL_HASHTABLE_H */
|
|
|
|
// Local Variables:
|
|
// mode:C++
|
|
// End:
|