class TMap: public TCollection

 TMap ctor. See THashTable for a description of the arguments.

 TMap dtor. Objects are not deleted unless the TMap is the
 owner (set via SetOwner()).

 This function may not be used (but we need to provide it since it is
 a pure virtual in TCollection). Use Add(key,value) instead.

 Add a (key,value) pair to the map.

 Return the ratio of entries vs occupied slots.

 Return number of slots in the hashtable. Use GetSize() to get the
 number of objects stored in the TMap.

 Remove all (key,value) pairs from the map but DO NOT delete the keys
 and/or values. Key objects are not deleted unless the TMap is the
 owner (set via SetOwner()). To delete only the value objects call
 DeleteValues() and to delete both keys and values use DeleteAll().

 Returns the number of collisions for a key with a certain name
 (i.e. number of objects in same slot in the hash table, i.e. length
 of linked list).

 Returns the number of collisions for a key (i.e. number of objects
 in same slot in the hash table, i.e. length of linked list).

 Remove all (key,value) pairs from the map AND delete the keys
 when they are allocated on the heap.

 Remove all (key,value) pairs from the map AND delete the values
 when they are allocated on the heap.

 Remove all (key,value) pairs from the map AND delete the keys AND
 values when they are allocated on the heap.

 Check if a (key,value) pair exists with keyname as name of the key.
 Returns a TPair* (need to downcast from TObject). Use Key() and
 Value() to get the pointers to the key and value, respectively.
 Returns 0 if not found.

 Check if a (key,value) pair exists with key as key.
 Returns a TPair* (need to downcast from TObject). Use Key() and
 Value() to get the pointers to the key and value, respectively.
 Returns 0 if not found.

 Returns a pointer to the value associated with keyname as name of the key.

 Returns a pointer to the value associated with key.

 Create an iterator for TMap.

 Print all objects in this collection.
 Wildcarding is supported, e.g. wildcard="xxx*" prints only objects
 with names matching xxx*.

 Print all objects in this collection, passing option to the
 objects Print() method.
 Wildcarding is supported, e.g. wildcard="xxx*" prints only objects
 with names matching xxx*.

 Rehash the underlaying THashTable (see THashTable::Rehash()).

 Remove the (key,value) pair with key from the map. Returns the key
 object or 0 in case key was not found.

 Stream all key/value pairs in the map to or from the I/O buffer.