From cf086adca1b7b5a361a248808f9a847e513d3630 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 4 Aug 2009 02:14:24 -0400
Subject: [PATCH] [HB] Add comment

---
 src/hb-ot-layout-common-private.hh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/hb-ot-layout-common-private.hh b/src/hb-ot-layout-common-private.hh
index 596acd61b..6cee0852c 100644
--- a/src/hb-ot-layout-common-private.hh
+++ b/src/hb-ot-layout-common-private.hh
@@ -47,8 +47,10 @@ template <typename Type>
 struct Record
 {
   inline bool sanitize (SANITIZE_ARG_DEF, const char *base) {
-    /* Note: Doesn't sanitize referenced object */
-    /* Only accept ASCII-visible tags (mind DEL) */
+    /* Note: Only accept ASCII-visible tags (mind DEL)
+     * This is one of the few times (only time?) we check
+     * for data integrity, as opposed o just boundary checks
+     */
     return (tag & 0x80808080) == 0 && offset.sanitize (SANITIZE_ARG, base);
   }