/*-----------------------------------------------------------------------------
- * $Id: Hash.h,v 1.2 2000/01/13 14:34:03 hwloidl Exp $
*
* (c) The GHC Team, 1999
*
*
* -------------------------------------------------------------------------- */
+#ifndef HASH_H
+#define HASH_H
+
typedef struct hashtable HashTable; /* abstract */
+/* Hash table access where the keys are StgWords */
+HashTable * allocHashTable ( void );
void * lookupHashTable ( HashTable *table, StgWord key );
void insertHashTable ( HashTable *table, StgWord key, void *data );
void * removeHashTable ( HashTable *table, StgWord key, void *data );
-void freeHashTable ( HashTable *table, void (*freeDataFun)(void *) );
-HashTable * allocHashTable ( void );
+
+/* Hash table access where the keys are C strings (the strings are
+ * assumed to be allocated by the caller, and mustn't be deallocated
+ * until the corresponding hash table entry has been removed).
+ */
+HashTable * allocStrHashTable ( void );
+
+#define lookupStrHashTable(table, key) \
+ (lookupHashTable(table, (StgWord)key))
+
+#define insertStrHashTable(table, key, data) \
+ (insertHashTable(table, (StgWord)key, data))
+
+#define removeStrHashTable(table, key, data) \
+ (removeHashTable(table, (StgWord)key, data))
+
+/* Freeing hash tables
+ */
+void freeHashTable ( HashTable *table, void (*freeDataFun)(void *) );
+
+#endif /* HASH_H */