/*

 *

 * 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_HASH_MAP_H

#define _STLP_INTERNAL_HASH_MAP_H

#ifndef _STLP_INTERNAL_HASHTABLE_H

#  include <stl/_hashtable.h>

#endif

_STLP_BEGIN_NAMESPACE

//Specific iterator traits creation

_STLP_CREATE_HASH_ITERATOR_TRAITS(HashMapTraitsT, traits)

template <class _Key, class _Tp, _STLP_DFL_TMPL_PARAM(_HashFcn,hash<_Key>),

          _STLP_DFL_TMPL_PARAM(_EqualKey,equal_to<_Key>),

          _STLP_DEFAULT_PAIR_ALLOCATOR_SELECT(const _Key, _Tp) >

class hash_map

#if defined (_STLP_USE_PARTIAL_SPEC_WORKAROUND)

               : public __stlport_class<hash_map<_Key, _Tp, _HashFcn, _EqualKey, _Alloc> >

#endif

{

private:

  typedef hash_map<_Key, _Tp, _HashFcn, _EqualKey, _Alloc> _Self;

public:

  typedef _Key key_type;

  typedef _Tp data_type;

  typedef _Tp mapped_type;

#if !defined (__DMC__)

  typedef pair<const key_type, data_type> value_type;

#else

  /* DMC goes too far in template instanciation and tries to fully instanciate

   * slist<pair<const int, string> > for instance. The generation of assignment

   * operator fails of course so we are force to use mutable key for this compiler.

   */

  typedef pair<key_type, data_type> value_type;

#endif

private:

  //Specific iterator traits creation

  typedef _STLP_PRIV _HashMapTraitsT<value_type> _HashMapTraits;

public:

  typedef hashtable<value_type, key_type, _HashFcn, _HashMapTraits,

                    _STLP_SELECT1ST(value_type, _Key), _EqualKey, _Alloc > _Ht;

  typedef typename _Ht::hasher hasher;

  typedef typename _Ht::key_equal key_equal;

  typedef typename _Ht::size_type size_type;

  typedef typename _Ht::difference_type difference_type;

  typedef typename _Ht::pointer pointer;

  typedef typename _Ht::const_pointer const_pointer;

  typedef typename _Ht::reference reference;

  typedef typename _Ht::const_reference const_reference;

  typedef typename _Ht::iterator iterator;

  typedef typename _Ht::const_iterator const_iterator;

  typedef typename _Ht::allocator_type allocator_type;

  hasher hash_funct() const { return _M_ht.hash_funct(); }

  key_equal key_eq() const { return _M_ht.key_eq(); }

  allocator_type get_allocator() const { return _M_ht.get_allocator(); }

private:

  _Ht _M_ht;

  _STLP_KEY_TYPE_FOR_CONT_EXT(key_type)

public:

  hash_map() : _M_ht(100, hasher(), key_equal(), allocator_type()) {}

  explicit hash_map(size_type __n)

    : _M_ht(__n, hasher(), key_equal(), allocator_type()) {}

  hash_map(size_type __n, const hasher& __hf)

    : _M_ht(__n, __hf, key_equal(), allocator_type()) {}

  hash_map(size_type __n, const hasher& __hf, const key_equal& __eql,

           const allocator_type& __a = allocator_type())

    : _M_ht(__n, __hf, __eql, __a) {}

  hash_map(__move_source<_Self> src)

    : _M_ht(__move_source<_Ht>(src.get()._M_ht)) {

  }

#ifdef _STLP_MEMBER_TEMPLATES

  template <class _InputIterator>

  hash_map(_InputIterator __f, _InputIterator __l)

    : _M_ht(100, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

  template <class _InputIterator>

  hash_map(_InputIterator __f, _InputIterator __l, size_type __n)

    : _M_ht(__n, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

  template <class _InputIterator>

  hash_map(_InputIterator __f, _InputIterator __l, size_type __n,

           const hasher& __hf)

    : _M_ht(__n, __hf, key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

# ifdef _STLP_NEEDS_EXTRA_TEMPLATE_CONSTRUCTORS

  template <class _InputIterator>

  hash_map(_InputIterator __f, _InputIterator __l, size_type __n,

           const hasher& __hf, const key_equal& __eql)

    : _M_ht(__n, __hf, __eql, allocator_type())

    { _M_ht.insert_unique(__f, __l); }

# endif

  template <class _InputIterator>

  hash_map(_InputIterator __f, _InputIterator __l, size_type __n,

           const hasher& __hf, const key_equal& __eql,

           const allocator_type& __a _STLP_ALLOCATOR_TYPE_DFL)

    : _M_ht(__n, __hf, __eql, __a)

    { _M_ht.insert_unique(__f, __l); }

#else

  hash_map(const value_type* __f, const value_type* __l)

    : _M_ht(100, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

  hash_map(const value_type* __f, const value_type* __l, size_type __n)

    : _M_ht(__n, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

  hash_map(const value_type* __f, const value_type* __l, size_type __n,

           const hasher& __hf)

    : _M_ht(__n, __hf, key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

  hash_map(const value_type* __f, const value_type* __l, size_type __n,

           const hasher& __hf, const key_equal& __eql,

           const allocator_type& __a = allocator_type())

    : _M_ht(__n, __hf, __eql, __a)

    { _M_ht.insert_unique(__f, __l); }

  hash_map(const_iterator __f, const_iterator __l)

    : _M_ht(100, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

  hash_map(const_iterator __f, const_iterator __l, size_type __n)

    : _M_ht(__n, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

  hash_map(const_iterator __f, const_iterator __l, size_type __n,

           const hasher& __hf)

    : _M_ht(__n, __hf, key_equal(), allocator_type())

    { _M_ht.insert_unique(__f, __l); }

  hash_map(const_iterator __f, const_iterator __l, size_type __n,

           const hasher& __hf, const key_equal& __eql,

           const allocator_type& __a = allocator_type())

    : _M_ht(__n, __hf, __eql, __a)

    { _M_ht.insert_unique(__f, __l); }

#endif /*_STLP_MEMBER_TEMPLATES */

public:

  size_type size() const { return _M_ht.size(); }

  size_type max_size() const { return _M_ht.max_size(); }

  bool empty() const { return _M_ht.empty(); }

  void swap(_Self& __hs) { _M_ht.swap(__hs._M_ht); }

  iterator begin() { return _M_ht.begin(); }

  iterator end() { return _M_ht.end(); }

  const_iterator begin() const { return _M_ht.begin(); }

  const_iterator end() const { return _M_ht.end(); }

public:

  pair<iterator,bool> insert(const value_type& __obj)

  { return _M_ht.insert_unique(__obj); }

#ifdef _STLP_MEMBER_TEMPLATES

  template <class _InputIterator>

  void insert(_InputIterator __f, _InputIterator __l)

  { _M_ht.insert_unique(__f,__l); }

#else

  void insert(const value_type* __f, const value_type* __l)

  { _M_ht.insert_unique(__f,__l); }

  void insert(const_iterator __f, const_iterator __l)

  { _M_ht.insert_unique(__f, __l); }

#endif /*_STLP_MEMBER_TEMPLATES */

  pair<iterator,bool> insert_noresize(const value_type& __obj)

  { return _M_ht.insert_unique_noresize(__obj); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  iterator find(const _KT& __key) { return _M_ht.find(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  const_iterator find(const _KT& __key) const { return _M_ht.find(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  _Tp& operator[](const _KT& __key) {

    iterator __it = _M_ht.find(__key);

    return (__it == _M_ht.end() ?

      _M_ht._M_insert(value_type(__key, _STLP_DEFAULT_CONSTRUCTED(_Tp))).second :

      (*__it).second );

  }

  _STLP_TEMPLATE_FOR_CONT_EXT

  size_type count(const _KT& __key) const { return _M_ht.count(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  pair<iterator, iterator> equal_range(const _KT& __key)

  { return _M_ht.equal_range(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  pair<const_iterator, const_iterator> equal_range(const _KT& __key) const

  { return _M_ht.equal_range(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  size_type erase(const _KT& __key) {return _M_ht.erase(__key); }

  void erase(iterator __it) { _M_ht.erase(__it); }

  void erase(iterator __f, iterator __l) { _M_ht.erase(__f, __l); }

  void clear() { _M_ht.clear(); }

  void resize(size_type __hint) { _M_ht.resize(__hint); }

  size_type bucket_count() const { return _M_ht.bucket_count(); }

  size_type max_bucket_count() const { return _M_ht.max_bucket_count(); }

  size_type elems_in_bucket(size_type __n) const

  { return _M_ht.elems_in_bucket(__n); }

};

//Specific iterator traits creation

_STLP_CREATE_HASH_ITERATOR_TRAITS(HashMultimapTraitsT, traits)

template <class _Key, class _Tp, _STLP_DFL_TMPL_PARAM(_HashFcn,hash<_Key>),

          _STLP_DFL_TMPL_PARAM(_EqualKey,equal_to<_Key>),

          _STLP_DEFAULT_PAIR_ALLOCATOR_SELECT(const _Key, _Tp) >

class hash_multimap

#if defined (_STLP_USE_PARTIAL_SPEC_WORKAROUND)

                    : public __stlport_class<hash_multimap<_Key, _Tp, _HashFcn, _EqualKey, _Alloc> >

#endif

{

private:

  typedef hash_multimap<_Key, _Tp, _HashFcn, _EqualKey, _Alloc> _Self;

public:

  typedef _Key key_type;

  typedef _Tp data_type;

  typedef _Tp mapped_type;

#if !defined (__DMC__)

  typedef pair<const key_type, data_type> value_type;

#else

  typedef pair<key_type, data_type> value_type;

#endif

private:

  //Specific iterator traits creation

  typedef _STLP_PRIV _HashMultimapTraitsT<value_type> _HashMultimapTraits;

public:

  typedef hashtable<value_type, key_type, _HashFcn, _HashMultimapTraits,

                    _STLP_SELECT1ST(value_type,  _Key), _EqualKey, _Alloc > _Ht;

  typedef typename _Ht::hasher hasher;

  typedef typename _Ht::key_equal key_equal;

  typedef typename _Ht::size_type size_type;

  typedef typename _Ht::difference_type difference_type;

  typedef typename _Ht::pointer pointer;

  typedef typename _Ht::const_pointer const_pointer;

  typedef typename _Ht::reference reference;

  typedef typename _Ht::const_reference const_reference;

  typedef typename _Ht::iterator iterator;

  typedef typename _Ht::const_iterator const_iterator;

  typedef typename _Ht::allocator_type allocator_type;

  hasher hash_funct() const { return _M_ht.hash_funct(); }

  key_equal key_eq() const { return _M_ht.key_eq(); }

  allocator_type get_allocator() const { return _M_ht.get_allocator(); }

private:

  _Ht _M_ht;

  _STLP_KEY_TYPE_FOR_CONT_EXT(key_type)

public:

  hash_multimap() : _M_ht(100, hasher(), key_equal(), allocator_type()) {}

  explicit hash_multimap(size_type __n)

    : _M_ht(__n, hasher(), key_equal(), allocator_type()) {}

  hash_multimap(size_type __n, const hasher& __hf)

    : _M_ht(__n, __hf, key_equal(), allocator_type()) {}

  hash_multimap(size_type __n, const hasher& __hf, const key_equal& __eql,

                const allocator_type& __a = allocator_type())

    : _M_ht(__n, __hf, __eql, __a) {}

  hash_multimap(__move_source<_Self> src)

    : _M_ht(__move_source<_Ht>(src.get()._M_ht)) {

  }

#ifdef _STLP_MEMBER_TEMPLATES

  template <class _InputIterator>

  hash_multimap(_InputIterator __f, _InputIterator __l)

    : _M_ht(100, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

  template <class _InputIterator>

  hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n)

    : _M_ht(__n, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

  template <class _InputIterator>

  hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n,

                const hasher& __hf)

    : _M_ht(__n, __hf, key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

#  ifdef _STLP_NEEDS_EXTRA_TEMPLATE_CONSTRUCTORS

  template <class _InputIterator>

  hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n,

                const hasher& __hf, const key_equal& __eql)

    : _M_ht(__n, __hf, __eql, allocator_type())

    { _M_ht.insert_equal(__f, __l); }

#  endif

  template <class _InputIterator>

  hash_multimap(_InputIterator __f, _InputIterator __l, size_type __n,

                const hasher& __hf, const key_equal& __eql,

                const allocator_type& __a _STLP_ALLOCATOR_TYPE_DFL)

    : _M_ht(__n, __hf, __eql, __a)

    { _M_ht.insert_equal(__f, __l); }

#else

  hash_multimap(const value_type* __f, const value_type* __l)

    : _M_ht(100, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

  hash_multimap(const value_type* __f, const value_type* __l, size_type __n)

    : _M_ht(__n, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

  hash_multimap(const value_type* __f, const value_type* __l, size_type __n,

                const hasher& __hf)

    : _M_ht(__n, __hf, key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

  hash_multimap(const value_type* __f, const value_type* __l, size_type __n,

                const hasher& __hf, const key_equal& __eql,

                const allocator_type& __a = allocator_type())

    : _M_ht(__n, __hf, __eql, __a)

    { _M_ht.insert_equal(__f, __l); }

  hash_multimap(const_iterator __f, const_iterator __l)

    : _M_ht(100, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

  hash_multimap(const_iterator __f, const_iterator __l, size_type __n)

    : _M_ht(__n, hasher(), key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

  hash_multimap(const_iterator __f, const_iterator __l, size_type __n,

                const hasher& __hf)

    : _M_ht(__n, __hf, key_equal(), allocator_type())

    { _M_ht.insert_equal(__f, __l); }

  hash_multimap(const_iterator __f, const_iterator __l, size_type __n,

                const hasher& __hf, const key_equal& __eql,

                const allocator_type& __a = allocator_type())

    : _M_ht(__n, __hf, __eql, __a)

    { _M_ht.insert_equal(__f, __l); }

#endif /*_STLP_MEMBER_TEMPLATES */

public:

  size_type size() const { return _M_ht.size(); }

  size_type max_size() const { return _M_ht.max_size(); }

  bool empty() const { return _M_ht.empty(); }

  void swap(_Self& __hs) { _M_ht.swap(__hs._M_ht); }

  iterator begin() { return _M_ht.begin(); }

  iterator end() { return _M_ht.end(); }

  const_iterator begin() const { return _M_ht.begin(); }

  const_iterator end() const { return _M_ht.end(); }

public:

  iterator insert(const value_type& __obj)

    { return _M_ht.insert_equal(__obj); }

#ifdef _STLP_MEMBER_TEMPLATES

  template <class _InputIterator>

  void insert(_InputIterator __f, _InputIterator __l)

    { _M_ht.insert_equal(__f,__l); }

#else

  void insert(const value_type* __f, const value_type* __l) {

    _M_ht.insert_equal(__f,__l);

  }

  void insert(const_iterator __f, const_iterator __l)

    { _M_ht.insert_equal(__f, __l); }

#endif /*_STLP_MEMBER_TEMPLATES */

  iterator insert_noresize(const value_type& __obj)

    { return _M_ht.insert_equal_noresize(__obj); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  iterator find(const _KT& __key) { return _M_ht.find(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  const_iterator find(const _KT& __key) const { return _M_ht.find(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  size_type count(const _KT& __key) const { return _M_ht.count(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  pair<iterator, iterator>

  equal_range(const _KT& __key) { return _M_ht.equal_range(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  pair<const_iterator, const_iterator>

  equal_range(const _KT& __key) const { return _M_ht.equal_range(__key); }

  _STLP_TEMPLATE_FOR_CONT_EXT

  size_type erase(const _KT& __key) {return _M_ht.erase(__key); }

  void erase(iterator __it) { _M_ht.erase(__it); }

  void erase(iterator __f, iterator __l) { _M_ht.erase(__f, __l); }

  void clear() { _M_ht.clear(); }

public:

  void resize(size_type __hint) { _M_ht.resize(__hint); }

  size_type bucket_count() const { return _M_ht.bucket_count(); }

  size_type max_bucket_count() const { return _M_ht.max_bucket_count(); }

  size_type elems_in_bucket(size_type __n) const

  { return _M_ht.elems_in_bucket(__n); }

};

#define _STLP_TEMPLATE_HEADER template <class _Key, class _Tp, class _HashFcn, class _EqlKey, class _Alloc>

#define _STLP_TEMPLATE_CONTAINER hash_map<_Key,_Tp,_HashFcn,_EqlKey,_Alloc>

#include <stl/_relops_hash_cont.h>

#undef _STLP_TEMPLATE_CONTAINER

#define _STLP_TEMPLATE_CONTAINER hash_multimap<_Key,_Tp,_HashFcn,_EqlKey,_Alloc>

#include <stl/_relops_hash_cont.h>

#undef _STLP_TEMPLATE_CONTAINER

#undef _STLP_TEMPLATE_HEADER

#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)

template <class _Key, class _Tp, class _HashFn,  class _EqKey, class _Alloc>

struct __move_traits<hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc> > :

  _STLP_PRIV __move_traits_help<typename hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc>::_Ht>

{};

template <class _Key, class _Tp, class _HashFn,  class _EqKey, class _Alloc>

struct __move_traits<hash_multimap<_Key, _Tp, _HashFn, _EqKey, _Alloc> > :

  _STLP_PRIV __move_traits_help<typename hash_multimap<_Key, _Tp, _HashFn, _EqKey, _Alloc>::_Ht>

{};

// Specialization of insert_iterator so that it will work for hash_map

// and hash_multimap.

template <class _Key, class _Tp, class _HashFn,  class _EqKey, class _Alloc>

class insert_iterator<hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc> > {

protected:

  typedef hash_map<_Key, _Tp, _HashFn, _EqKey, _Alloc> _Container;

  _Container* container;

public:

  typedef _Container          container_type;

  typedef output_iterator_tag iterator_category;

  typedef void                value_type;

  typedef void                difference_type;

  typedef void                pointer;

  typedef void                reference;

  insert_iterator(_Container& __x) : container(&__x) {}

  insert_iterator(_Container& __x, typename _Container::iterator)

    : container(&__x) {}

  insert_iterator<_Container>&

  operator=(const typename _Container::value_type& __val) {

    container->insert(__val);

    return *this;

  }

  insert_iterator<_Container>& operator*() { return *this; }

  insert_iterator<_Container>& operator++() { return *this; }

  insert_iterator<_Container>& operator++(int) { return *this; }

};

template <class _Key, class _Tp, class _HashFn,  class _EqKey, class _Alloc>

class insert_iterator<hash_multimap<_Key, _Tp, _HashFn, _EqKey, _Alloc> > {

protected:

  typedef hash_multimap<_Key, _Tp, _HashFn, _EqKey, _Alloc> _Container;

  _Container* container;

  typename _Container::iterator iter;

public:

  typedef _Container          container_type;

  typedef output_iterator_tag iterator_category;

  typedef void                value_type;

  typedef void                difference_type;

  typedef void                pointer;

  typedef void                reference;

  insert_iterator(_Container& __x) : container(&__x) {}

  insert_iterator(_Container& __x, typename _Container::iterator)

    : container(&__x) {}

  insert_iterator<_Container>&

  operator=(const typename _Container::value_type& __val) {

    container->insert(__val);

    return *this;

  }

  insert_iterator<_Container>& operator*() { return *this; }

  insert_iterator<_Container>& operator++() { return *this; }

  insert_iterator<_Container>& operator++(int) { return *this; }

};

#endif /* _STLP_CLASS_PARTIAL_SPECIALIZATION */

_STLP_END_NAMESPACE

#endif /* _STLP_INTERNAL_HASH_MAP_H */

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