-/* returns control block */
-struct hash_control *hash_new PARAMS ((void));
-void hash_die PARAMS ((struct hash_control *));
-/* returns previous value */
-PTR hash_delete PARAMS ((struct hash_control *, const char *str));
-/* returns previous value */
-PTR hash_replace PARAMS ((struct hash_control *, const char *str, PTR val));
-/* returns error string or null */
-const char *hash_insert PARAMS ((struct hash_control *, const char *str,
- PTR val));
-/* returns value */
-PTR hash_find PARAMS ((struct hash_control *, const char *str));
-/* returns error text or null (internal) */
-const char *hash_jam PARAMS ((struct hash_control *, const char *str,
- PTR val));
-
-void hash_print_statistics PARAMS ((FILE *, const char *,
- struct hash_control *));
-#endif /* #ifdef hashH */
-
-/* end of hash.h */
+/* Set the size of the hash table used. */
+
+void set_gas_hash_table_size (unsigned long);
+
+/* Create a hash table. This return a control block. */
+
+extern struct hash_control *hash_new (void);
+extern struct hash_control *hash_new_sized (unsigned long);
+
+/* Delete a hash table, freeing all allocated memory. */
+
+extern void hash_die (struct hash_control *);
+
+/* Insert an entry into a hash table. This returns NULL on success.
+ On error, it returns a printable string indicating the error. It
+ is considered to be an error if the entry already exists in the
+ hash table. */
+
+extern const char *hash_insert (struct hash_control *,
+ const char *key, void *value);
+
+/* Insert or replace an entry in a hash table. This returns NULL on
+ success. On error, it returns a printable string indicating the
+ error. If an entry already exists, its value is replaced. */
+
+extern const char *hash_jam (struct hash_control *,
+ const char *key, void *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 void *hash_replace (struct hash_control *, const char *key,
+ void *value);
+
+/* Find an entry in a hash table, returning its value. Returns NULL
+ if the entry is not found. */
+
+extern void *hash_find (struct hash_control *, const char *key);
+
+/* As hash_find, but KEY is of length LEN and is not guaranteed to be
+ NUL-terminated. */
+
+extern void *hash_find_n (struct hash_control *, const char *key, size_t len);
+
+/* Delete an entry from a hash table. This returns the value stored
+ for that entry, or NULL if there is no such entry. */
+
+extern void *hash_delete (struct hash_control *, const char *key, int);
+
+/* Traverse a hash table. Call the function on every entry in the
+ hash table. */
+
+extern void hash_traverse (struct hash_control *,
+ void (*pfn) (const char *key, void *value));
+
+/* Print hash table statistics on the specified file. NAME is the
+ name of the hash table, used for printing a header. */
+
+extern void hash_print_statistics (FILE *, const char *name,
+ struct hash_control *);
+
+#endif /* HASH_H */