libstdc++/stl/stl_map.h

   1 /*
   2  *
   3  * Copyright (c) 1994
   4  * Hewlett-Packard Company
   5  *
   6  * Permission to use, copy, modify, distribute and sell this software
   7  * and its documentation for any purpose is hereby granted without fee,
   8  * provided that the above copyright notice appear in all copies and
   9  * that both that copyright notice and this permission notice appear
  10  * in supporting documentation.  Hewlett-Packard Company makes no
  11  * representations about the suitability of this software for any
  12  * purpose.  It is provided "as is" without express or implied warranty.
  13  *
  14  *
  15  * Copyright (c) 1996,1997
  16  * Silicon Graphics Computer Systems, Inc.
  17  *
  18  * Permission to use, copy, modify, distribute and sell this software
  19  * and its documentation for any purpose is hereby granted without fee,
  20  * provided that the above copyright notice appear in all copies and
  21  * that both that copyright notice and this permission notice appear
  22  * in supporting documentation.  Silicon Graphics makes no
  23  * representations about the suitability of this software for any
  24  * purpose.  It is provided "as is" without express or implied warranty.
  25  */
  26
  27 /* NOTE: This is an internal header file, included by other STL headers.
  28  *   You should not attempt to use it directly.
  29  */
  30
  31 #ifndef __SGI_STL_INTERNAL_MAP_H
  32 #define __SGI_STL_INTERNAL_MAP_H
  33
  34 __STL_BEGIN_NAMESPACE
  35
  36 #if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
  37 #pragma set woff 1174
  38 #pragma set woff 1375
  39 #endif
  40
  41 #ifndef __STL_LIMITED_DEFAULT_TEMPLATES
  42 template <class _Key, class _Tp, class _Compare = less<_Key>,
  43           class _Alloc = __STL_DEFAULT_ALLOCATOR(_Tp) >
  44 #else
  45 template <class _Key, class _Tp, class _Compare,
  46           class _Alloc = __STL_DEFAULT_ALLOCATOR(_Tp) >
  47 #endif
  48 class map {
  49 public:
  50
  51 // typedefs:
  52
  53   typedef _Key                  key_type;
  54   typedef _Tp                   data_type;
  55   typedef _Tp                   mapped_type;
  56   typedef pair<const _Key, _Tp> value_type;
  57   typedef _Compare              key_compare;
  58
  59   class value_compare
  60     : public binary_function<value_type, value_type, bool> {
  61   friend class map<_Key,_Tp,_Compare,_Alloc>;
  62   protected :
  63     _Compare _M_comp;
  64     value_compare(_Compare __c) : _M_comp(__c) {}
  65   public:
  66     bool operator()(const value_type& __x, const value_type& __y) const {
  67       return _M_comp(__x.first, __y.first);
  68     }
  69   };
  70
  71 private:
  72   typedef _Rb_tree<key_type, value_type,
  73                    _Select1st<value_type>, key_compare, _Alloc> _Rep_type;
  74   _Rep_type _M_t;  // red-black tree representing map
  75 public:
  76   typedef typename _Rep_type::pointer pointer;
  77   typedef typename _Rep_type::const_pointer const_pointer;
  78   typedef typename _Rep_type::reference reference;
  79   typedef typename _Rep_type::const_reference const_reference;
  80   typedef typename _Rep_type::iterator iterator;
  81   typedef typename _Rep_type::const_iterator const_iterator;
  82   typedef typename _Rep_type::reverse_iterator reverse_iterator;
  83   typedef typename _Rep_type::const_reverse_iterator const_reverse_iterator;
  84   typedef typename _Rep_type::size_type size_type;
  85   typedef typename _Rep_type::difference_type difference_type;
  86   typedef typename _Rep_type::allocator_type allocator_type;
  87
  88   // allocation/deallocation
  89
  90   map() : _M_t(_Compare(), allocator_type()) {}
  91   explicit map(const _Compare& __comp,
  92                const allocator_type& __a = allocator_type())
  93     : _M_t(__comp, __a) {}
  94
  95 #ifdef __STL_MEMBER_TEMPLATES
  96   template <class _InputIterator>
  97   map(_InputIterator __first, _InputIterator __last)
  98     : _M_t(_Compare(), allocator_type())
  99     { _M_t.insert_unique(__first, __last); }
 100
 101   template <class _InputIterator>
 102   map(_InputIterator __first, _InputIterator __last, const _Compare& __comp,
 103       const allocator_type& __a = allocator_type())
 104     : _M_t(__comp, __a) { _M_t.insert_unique(__first, __last); }
 105 #else
 106   map(const value_type* __first, const value_type* __last)
 107     : _M_t(_Compare(), allocator_type())
 108     { _M_t.insert_unique(__first, __last); }
 109
 110   map(const value_type* __first,
 111       const value_type* __last, const _Compare& __comp,
 112       const allocator_type& __a = allocator_type())
 113     : _M_t(__comp, __a) { _M_t.insert_unique(__first, __last); }
 114
 115   map(const_iterator __first, const_iterator __last)
 116     : _M_t(_Compare(), allocator_type())
 117     { _M_t.insert_unique(__first, __last); }
 118
 119   map(const_iterator __first, const_iterator __last, const _Compare& __comp,
 120       const allocator_type& __a = allocator_type())
 121     : _M_t(__comp, __a) { _M_t.insert_unique(__first, __last); }
 122
 123 #endif /* __STL_MEMBER_TEMPLATES */
 124
 125   map(const map<_Key,_Tp,_Compare,_Alloc>& __x) : _M_t(__x._M_t) {}
 126   map<_Key,_Tp,_Compare,_Alloc>&
 127   operator=(const map<_Key, _Tp, _Compare, _Alloc>& __x)
 128   {
 129     _M_t = __x._M_t;
 130     return *this;
 131   }
 132
 133   // accessors:
 134
 135   key_compare key_comp() const { return _M_t.key_comp(); }
 136   value_compare value_comp() const { return value_compare(_M_t.key_comp()); }
 137   allocator_type get_allocator() const { return _M_t.get_allocator(); }
 138
 139   iterator begin() { return _M_t.begin(); }
 140   const_iterator begin() const { return _M_t.begin(); }
 141   iterator end() { return _M_t.end(); }
 142   const_iterator end() const { return _M_t.end(); }
 143   reverse_iterator rbegin() { return _M_t.rbegin(); }
 144   const_reverse_iterator rbegin() const { return _M_t.rbegin(); }
 145   reverse_iterator rend() { return _M_t.rend(); }
 146   const_reverse_iterator rend() const { return _M_t.rend(); }
 147   bool empty() const { return _M_t.empty(); }
 148   size_type size() const { return _M_t.size(); }
 149   size_type max_size() const { return _M_t.max_size(); }
 150   _Tp& operator[](const key_type& __k) {
 151     iterator __i = lower_bound(__k);
 152     // __i->first is greater than or equivalent to __k.
 153     if (__i == end() || key_comp()(__k, (*__i).first))
 154       __i = insert(__i, value_type(__k, _Tp()));
 155     return (*__i).second;
 156   }
 157   void swap(map<_Key,_Tp,_Compare,_Alloc>& __x) { _M_t.swap(__x._M_t); }
 158
 159   // insert/erase
 160
 161   pair<iterator,bool> insert(const value_type& __x)
 162     { return _M_t.insert_unique(__x); }
 163   iterator insert(iterator position, const value_type& __x)
 164     { return _M_t.insert_unique(position, __x); }
 165 #ifdef __STL_MEMBER_TEMPLATES
 166   template <class _InputIterator>
 167   void insert(_InputIterator __first, _InputIterator __last) {
 168     _M_t.insert_unique(__first, __last);
 169   }
 170 #else
 171   void insert(const value_type* __first, const value_type* __last) {
 172     _M_t.insert_unique(__first, __last);
 173   }
 174   void insert(const_iterator __first, const_iterator __last) {
 175     _M_t.insert_unique(__first, __last);
 176   }
 177 #endif /* __STL_MEMBER_TEMPLATES */
 178
 179   void erase(iterator __position) { _M_t.erase(__position); }
 180   size_type erase(const key_type& __x) { return _M_t.erase(__x); }
 181   void erase(iterator __first, iterator __last)
 182     { _M_t.erase(__first, __last); }
 183   void clear() { _M_t.clear(); }
 184
 185   // map operations:
 186
 187   iterator find(const key_type& __x) { return _M_t.find(__x); }
 188   const_iterator find(const key_type& __x) const { return _M_t.find(__x); }
 189   size_type count(const key_type& __x) const { return _M_t.count(__x); }
 190   iterator lower_bound(const key_type& __x) {return _M_t.lower_bound(__x); }
 191   const_iterator lower_bound(const key_type& __x) const {
 192     return _M_t.lower_bound(__x);
 193   }
 194   iterator upper_bound(const key_type& __x) {return _M_t.upper_bound(__x); }
 195   const_iterator upper_bound(const key_type& __x) const {
 196     return _M_t.upper_bound(__x);
 197   }
 198
 199   pair<iterator,iterator> equal_range(const key_type& __x) {
 200     return _M_t.equal_range(__x);
 201   }
 202   pair<const_iterator,const_iterator> equal_range(const key_type& __x) const {
 203     return _M_t.equal_range(__x);
 204   }
 205   friend bool operator== __STL_NULL_TMPL_ARGS (const map&, const map&);
 206   friend bool operator< __STL_NULL_TMPL_ARGS (const map&, const map&);
 207 };
 208
 209 template <class _Key, class _Tp, class _Compare, class _Alloc>
 210 inline bool operator==(const map<_Key,_Tp,_Compare,_Alloc>& __x,
 211                        const map<_Key,_Tp,_Compare,_Alloc>& __y) {
 212   return __x._M_t == __y._M_t;
 213 }
 214
 215 template <class _Key, class _Tp, class _Compare, class _Alloc>
 216 inline bool operator<(const map<_Key,_Tp,_Compare,_Alloc>& __x,
 217                       const map<_Key,_Tp,_Compare,_Alloc>& __y) {
 218   return __x._M_t < __y._M_t;
 219 }
 220
 221 #ifdef __STL_FUNCTION_TMPL_PARTIAL_ORDER
 222
 223 template <class _Key, class _Tp, class _Compare, class _Alloc>
 224 inline void swap(map<_Key,_Tp,_Compare,_Alloc>& __x,
 225                  map<_Key,_Tp,_Compare,_Alloc>& __y) {
 226   __x.swap(__y);
 227 }
 228
 229 #endif /* __STL_FUNCTION_TMPL_PARTIAL_ORDER */
 230
 231 #if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
 232 #pragma reset woff 1174
 233 #pragma reset woff 1375
 234 #endif
 235
 236 __STL_END_NAMESPACE
 237
 238 #endif /* __SGI_STL_INTERNAL_MAP_H */
 239
 240 // Local Variables:
 241 // mode:C++
 242 // End: