--- libelwix/inc/elwix/avar.h	2016/05/18 12:47:42	1.10
+++ libelwix/inc/elwix/avar.h	2019/09/24 15:49:52	1.11
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: avar.h,v 1.10 2016/05/18 12:47:42 misho Exp $
+* $Id: avar.h,v 1.11 2019/09/24 15:49:52 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 - 2015
+Copyright 2004 - 2019
 	by Michael Pounov <misho@elwix.org>.  All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -308,6 +308,7 @@ typedef struct __packed {
 								break; \
 						} \
 					} while (0)
+/* Additional helper macro, which can help about copy data variables */
 #define AIT_COPY_DATA(_vl, _v)          do { AIT_COPY_VAL((_vl), (_v)); \
 						if (AIT_TYPE((_vl)) == data) \
 							AIT_SET_DATA((_vl), AIT_GET_DATA((_v)), \