Added patty_dict_delete()

include/patty/dict.h

@@ -41,6 +41,8 @@ void *patty_dict_get(patty_dict *dict, void *key, size_t keysz);
 
 void *patty_dict_set(patty_dict *dict, void *key, size_t keysz, void *value);
 
+void *patty_dict_delete(patty_dict *dict, void *key, size_t keysz);
+
 void patty_dict_destroy(patty_dict *dict);
 
 #endif /* _PATTY_DICT_H */

src/dict.c

@@ -158,6 +158,23 @@ error_malloc_bucket:
     return NULL;
 }
 
+void *patty_dict_delete(patty_dict *dict, void *key, size_t keysz) {
+    patty_dict_slot *slot;
+    void *value;
+
+    uint32_t hash = patty_hash(key, keysz);
+
+    if ((slot = patty_dict_slot_find(dict, hash)) == NULL) {
+        return NULL;
+    }
+
+    value = slot->value;
+
+    memset(slot, '\0', sizeof(*slot));
+
+    return value;
+}
+
 static int dict_item_release(void *key, size_t keysz, void *value, void *ctx) {
     free(value);