#ifndef HashTab_h#define HashTab_h#include <object.h>class BucketList ;class BucketList { public:  BucketList(char *key);  ~BucketList();  BucketList *next_ ;  char *key_ ;  char *element_ ;  void DeleteList();  BucketList *Lookup(char *key);  int Length();  BucketList *Delete(char *key);};#define DEFAULT_BUCKETS 19class HashTab ;class HashTab : public TclObject { public:  HashTab(int buckets = DEFAULT_BUCKETS);  ~HashTab();  int elements_ ;  BucketList **htab_ ;  int buckets_ ;  BucketList *LookupInsertNotFound(char* key, char *element);  BucketList *Lookup(char* key);  void Delete(char *key);  char *FindElement(char *key);};#endif