_unordered_map.h

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/*
 * Copyright (c) 2004
 * Francois Dumont
 *
 * 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_UNORDERED_MAP_H
#define _STLP_INTERNAL_UNORDERED_MAP_H

#ifndef _STLP_INTERNAL_HASHTABLE_H
#  include <stl/_hashtable.h>
#endif

_STLP_BEGIN_NAMESPACE

//Specific iterator traits creation
_STLP_CREATE_HASH_ITERATOR_TRAITS(UnorderedMapTraitsT, traits)

_STLP_BEGIN_TR1_NAMESPACE

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(_STLP_CONST _Key, _Tp) >
class unordered_map
#if defined (_STLP_USE_PARTIAL_SPEC_WORKAROUND)
               : public __stlport_class<unordered_map<_Key, _Tp, _HashFcn, _EqualKey, _Alloc> >
#endif
{
private:
  typedef unordered_map<_Key, _Tp, _HashFcn, _EqualKey, _Alloc> _Self;
public:
  typedef _Key key_type;
  typedef _Tp data_type;
  typedef _Tp mapped_type;
  typedef pair<_STLP_CONST key_type, data_type> value_type;
private:
  //Specific iterator traits creation
  typedef _STLP_PRIV _UnorderedMapTraitsT<value_type> _UnorderedMapTraits;

public:
  typedef hashtable<value_type, key_type, _HashFcn, _UnorderedMapTraits,
                    _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::local_iterator local_iterator;
  typedef typename _Ht::const_local_iterator const_local_iterator;

  typedef typename _Ht::allocator_type allocator_type;

  hasher hash_function() 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:
  explicit unordered_map(size_type __n = 0, const hasher& __hf = hasher(),
                         const key_equal& __eql = key_equal(),
                         const allocator_type& __a = allocator_type())
    : _M_ht(__n, __hf, __eql, __a) {}

#if !defined (_STLP_NO_MOVE_SEMANTIC)
  unordered_map(__move_source<_Self> src)
    : _M_ht(__move_source<_Ht>(src.get()._M_ht)) {}
#endif

#if defined (_STLP_MEMBER_TEMPLATES)
  template <class _InputIterator>
  unordered_map(_InputIterator __f, _InputIterator __l,
                size_type __n = 0, const hasher& __hf = hasher(),
                const key_equal& __eql = key_equal(),
                const allocator_type& __a = allocator_type())
    : _M_ht(__n, __hf, __eql, __a)
  { _M_ht.insert_unique(__f, __l); }
#else
  unordered_map(const value_type* __f, const value_type* __l,
                size_type __n = 0, const hasher& __hf = hasher(),
                const key_equal& __eql = key_equal(),
                const allocator_type& __a = allocator_type())
    : _M_ht(__n, __hf, __eql, __a)
  { _M_ht.insert_unique(__f, __l); }

  unordered_map(const_iterator __f, const_iterator __l,
                size_type __n = 0, const hasher& __hf = hasher(),
                const key_equal& __eql = key_equal(),
                const allocator_type& __a = allocator_type())
    : _M_ht(__n, __hf, __eql, __a)
  { _M_ht.insert_unique(__f, __l); }
#endif /*_STLP_MEMBER_TEMPLATES */

  _Self& operator = (const _Self& __other)
  { _M_ht = __other._M_ht; return *this; }

  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); }
#if defined (_STLP_USE_PARTIAL_SPEC_WORKAROUND) && !defined (_STLP_FUNCTION_TMPL_PARTIAL_ORDER)
  void _M_swap_workaround(_Self& __x) { swap(__x); }
#endif

  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(); }

  pair<iterator,bool> insert(const value_type& __obj)
  { return _M_ht.insert_unique(__obj); }
  iterator insert(const_iterator /*__hint*/, const value_type& __obj)
  { return _M_ht.insert_unique(__obj); }
#if defined (_STLP_MEMBER_TEMPLATES)
  template <class _InputIterator>
  void insert(_InputIterator __f, _InputIterator __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)
#endif /*_STLP_MEMBER_TEMPLATES */
  { _M_ht.insert_unique(__f, __l); }

  _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); }

  size_type erase(const key_type& __key) {return _M_ht.erase(__key); }
  void erase(const_iterator __it) { _M_ht.erase(__it); }
  void erase(const_iterator __f, const_iterator __l) { _M_ht.erase(__f, __l); }
  void clear() { _M_ht.clear(); }

  size_type bucket_count() const { return _M_ht.bucket_count(); }
  size_type max_bucket_count() const { return _M_ht.max_bucket_count(); }
  size_type bucket_size(size_type __n) const { return _M_ht.elems_in_bucket(__n); }
  _STLP_TEMPLATE_FOR_CONT_EXT
  size_type bucket(const _KT& __k) const { return _M_ht.bucket(__k); }
  local_iterator begin(size_type __n) { return _M_ht.begin(__n); }
  local_iterator end(size_type __n) { return _M_ht.end(__n); }
  const_local_iterator begin(size_type __n) const { return _M_ht.begin(__n); }
  const_local_iterator end(size_type __n) const { return _M_ht.end(__n); }

  float load_factor() const { return _M_ht.load_factor(); }
  float max_load_factor() const { return _M_ht.max_load_factor(); }
  void max_load_factor(float __val) { _M_ht.max_load_factor(__val); }
  void rehash(size_type __hint) { _M_ht.rehash(__hint); }

#if defined (__DMC__) // disable operator==(pair<x,unordered_map>, pair<x,unordered_map>)
  bool operator==(const _Self&) const;
#endif
};

_STLP_END_NAMESPACE

//Specific iterator traits creation
_STLP_CREATE_HASH_ITERATOR_TRAITS(UnorderedMultimapTraitsT, traits)

_STLP_BEGIN_TR1_NAMESPACE

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(_STLP_CONST _Key, _Tp) >
class unordered_multimap
#if defined (_STLP_USE_PARTIAL_SPEC_WORKAROUND)
                    : public __stlport_class<unordered_multimap<_Key, _Tp, _HashFcn, _EqualKey, _Alloc> >
#endif
{
private:
  typedef unordered_multimap<_Key, _Tp, _HashFcn, _EqualKey, _Alloc> _Self;
public:
  typedef _Key key_type;
  typedef _Tp data_type;
  typedef _Tp mapped_type;
  typedef pair<_STLP_CONST key_type, data_type> value_type;
private:
  //Specific iterator traits creation
  typedef _STLP_PRIV _UnorderedMultimapTraitsT<value_type> _UnorderedMultimapTraits;

public:
  typedef hashtable<value_type, key_type, _HashFcn, _UnorderedMultimapTraits,
                    _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::local_iterator local_iterator;
  typedef typename _Ht::const_local_iterator const_local_iterator;

  typedef typename _Ht::allocator_type allocator_type;

  hasher hash_function() 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:
  explicit unordered_multimap(size_type __n = 0, const hasher& __hf = hasher(),
                              const key_equal& __eql = key_equal(),
                              const allocator_type& __a = allocator_type())
    : _M_ht(__n, __hf, __eql, __a) {}

#if !defined (_STLP_NO_MOVE_SEMANTIC)
  unordered_multimap(__move_source<_Self> src)
    : _M_ht(__move_source<_Ht>(src.get()._M_ht)) {}
#endif

#if defined (_STLP_MEMBER_TEMPLATES)
  template <class _InputIterator>
  unordered_multimap(_InputIterator __f, _InputIterator __l,
                     size_type __n = 0, const hasher& __hf = hasher(),
                     const key_equal& __eql = key_equal(),
                     const allocator_type& __a = allocator_type())
    : _M_ht(__n, __hf, __eql, __a)
  { _M_ht.insert_equal(__f, __l); }
#else
  unordered_multimap(const value_type* __f, const value_type* __l,
                     size_type __n = 0, const hasher& __hf = hasher(),
                     const key_equal& __eql = key_equal(),
                     const allocator_type& __a = allocator_type())
    : _M_ht(__n, __hf, __eql, __a)
  { _M_ht.insert_equal(__f, __l); }

  unordered_multimap(const_iterator __f, const_iterator __l,
                     size_type __n = 0, const hasher& __hf = hasher(),
                     const key_equal& __eql = key_equal(),
                     const allocator_type& __a = allocator_type())
    : _M_ht(__n, __hf, __eql, __a)
  { _M_ht.insert_equal(__f, __l); }
#endif /*_STLP_MEMBER_TEMPLATES */

  _Self& operator = (const _Self& __other)
  { _M_ht = __other._M_ht; return *this; }

  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); }
#if defined (_STLP_USE_PARTIAL_SPEC_WORKAROUND) && !defined (_STLP_FUNCTION_TMPL_PARTIAL_ORDER)
  void _M_swap_workaround(_Self& __x) { swap(__x); }
#endif

  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(); }

  iterator insert(const value_type& __obj)
  { return _M_ht.insert_equal(__obj); }
  iterator insert(const_iterator /*__hint*/, const value_type& __obj)
  { return _M_ht.insert_equal(__obj); }
#if defined (_STLP_MEMBER_TEMPLATES)
  template <class _InputIterator>
  void insert(_InputIterator __f, _InputIterator __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)
#endif /*_STLP_MEMBER_TEMPLATES */
  { _M_ht.insert_equal(__f, __l); }

  _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); }

  size_type erase(const key_type& __key) {return _M_ht.erase(__key); }
  void erase(const_iterator __it) { _M_ht.erase(__it); }
  void erase(const_iterator __f, const_iterator __l) { _M_ht.erase(__f, __l); }
  void clear() { _M_ht.clear(); }

  size_type bucket_count() const { return _M_ht.bucket_count(); }
  size_type max_bucket_count() const { return _M_ht.max_bucket_count(); }
  size_type bucket_size(size_type __n) const { return _M_ht.elems_in_bucket(__n); }
  _STLP_TEMPLATE_FOR_CONT_EXT
  size_type bucket(const _KT& __k) const { return _M_ht.bucket(__k); }
  local_iterator begin(size_type __n) { return _M_ht.begin(__n); }
  local_iterator end(size_type __n) { return _M_ht.end(__n); }
  const_local_iterator begin(size_type __n) const { return _M_ht.begin(__n); }
  const_local_iterator end(size_type __n) const { return _M_ht.end(__n); }

  float load_factor() const { return _M_ht.load_factor(); }
  float max_load_factor() const { return _M_ht.max_load_factor(); }
  void max_load_factor(float __val) { _M_ht.max_load_factor(__val); }
  void rehash(size_type __hint) { _M_ht.rehash(__hint); }
};

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

#include <stl/_relops_hash_cont.h>

#undef _STLP_TEMPLATE_CONTAINER
#define _STLP_TEMPLATE_CONTAINER unordered_multimap<_Key,_Tp,_HashFcn,_EqlKey,_Alloc>

#include <stl/_relops_hash_cont.h>

#undef _STLP_TEMPLATE_CONTAINER
#undef _STLP_TEMPLATE_HEADER

_STLP_END_NAMESPACE

// Specialization of insert_iterator so that it will work for unordered_map
// and unordered_multimap.

#if defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
#  if !defined (_STLP_NO_MOVE_SEMANTIC)
template <class _Key, class _Tp, class _HashFn,  class _EqKey, class _Alloc>
struct __move_traits<_STLP_TR1 unordered_map<_Key, _Tp, _HashFn, _EqKey, _Alloc> > :
  _STLP_PRIV __move_traits_help<typename _STLP_TR1 unordered_map<_Key, _Tp, _HashFn, _EqKey, _Alloc>::_Ht>
{};

template <class _Key, class _Tp, class _HashFn,  class _EqKey, class _Alloc>
struct __move_traits<_STLP_TR1 unordered_multimap<_Key, _Tp, _HashFn, _EqKey, _Alloc> > :
  _STLP_PRIV __move_traits_help<typename _STLP_TR1 unordered_map<_Key, _Tp, _HashFn, _EqKey, _Alloc>::_Ht>
{};
#  endif

template <class _Key, class _Tp, class _HashFn,  class _EqKey, class _Alloc>
class insert_iterator<_STLP_TR1 unordered_map<_Key, _Tp, _HashFn, _EqKey, _Alloc> > {
protected:
  typedef _STLP_TR1 unordered_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<_STLP_TR1 unordered_multimap<_Key, _Tp, _HashFn, _EqKey, _Alloc> > {
protected:
  typedef _STLP_TR1 unordered_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_UNORDERED_MAP_H */

// Local Variables:
// mode:C++
// End: