extern const char *hash_jam (struct hash_control *,
const char *key, PTR value);
-/* Replace an existing entry in a hash table. This returns the old
- value stored for the entry. If the entry is not found in the hash
- table, this does nothing and returns NULL. */
-
-extern PTR hash_replace (struct hash_control *, const char *key,
- PTR value);
-
/* Find an entry in a hash table, returning its value. Returns NULL
if the entry is not found. */
extern PTR hash_find (struct hash_control *, const char *key);
-/* Delete an entry from a hash table. This returns the value stored
- for that entry, or NULL if there is no such entry. */
-
-extern PTR hash_delete (struct hash_control *, const char *key);
-
/* Traverse a hash table. Call the function on every entry in the
hash table. */