--- Convert-BER-XS/XS.xs	2019/04/20 12:25:23	1.11
+++ Convert-BER-XS/XS.xs	2019/04/20 12:35:03	1.12
@@ -2,7 +2,10 @@
 #include "perl.h"
 #include "XSUB.h"
 
-// C99 required
+// C99 required!
+// this is not just for comments, but also for
+// integer constant semantics,
+// sscanf format modifiers and more.
 
 enum {
   // ASN_TAG