@@ -49,10 +49,18 @@
 
 	objc_global_mutex_unlock();
 
 	return i;
 }
+
+bool
+object_isTaggedPointer(id object)
+{
+	uintptr_t pointer = (uintptr_t)object;
+
+	return pointer & 1;
+}
 
 Class
 object_getTaggedPointerClass(id object)
 {
 	uintptr_t pointer = (uintptr_t)object ^ objc_tagged_pointer_secret;