diff -Naur a/src/String.h b/src/String.h
--- a/src/String.h	2023-07-25 10:51:57.599822581 +0800
+++ b/src/String.h	2023-07-25 10:52:19.904147633 +0800
@@ -12,6 +12,7 @@
 #include <stdio.h>
 #include <stdarg.h>
 #include <string>
+#include <ctime>
 
 class String
 {