--- libelwix/inc/elwix/avar.h	2019/09/24 15:49:52	1.11
+++ libelwix/inc/elwix/avar.h	2022/01/06 15:13:01	1.12
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: avar.h,v 1.11 2019/09/24 15:49:52 misho Exp $
+* $Id: avar.h,v 1.12 2022/01/06 15:13:01 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -12,7 +12,7 @@ terms:
 All of the documentation and software included in the ELWIX and AITNET
 Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
 
-Copyright 2004 - 2019
+Copyright 2004 - 2022
 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -353,6 +353,7 @@ typedef struct __packed {
 						switch (AIT_TYPE(__val)) { \
 							case buffer: \
 							case string: \
+								assert(!__val->val_in); \
 								if (__val->val.buffer) \
 									memset(__val->val.buffer, 0, \
 										AIT_LEN(__val)); \