From fe3dabc08df7501010564f8844bd4d11771cc6a4 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 8 Jun 2012 20:56:05 -0400
Subject: [PATCH] Minor

---
 src/hb-buffer.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/hb-buffer.cc b/src/hb-buffer.cc
index 34d2300..5c8b9e8 100644
--- a/src/hb-buffer.cc
+++ b/src/hb-buffer.cc
@@ -416,7 +416,7 @@ void
 hb_buffer_t::merge_clusters (unsigned int start,
 			     unsigned int end)
 {
-  if (unlikely (start >= end))
+  if (unlikely (end - start < 2))
     return;
 
   unsigned int cluster = info[start].cluster;
@@ -444,7 +444,7 @@ void
 hb_buffer_t::merge_out_clusters (unsigned int start,
 				 unsigned int end)
 {
-  if (unlikely (start >= end))
+  if (unlikely (end - start < 2))
     return;
 
   unsigned int cluster = out_info[start].cluster;
-- 
2.7.4