From 8ac345e5c0ed0aad6547592ea0839aabfb4ba980 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Mon, 2 Mar 2015 16:06:55 -0800
Subject: [PATCH] Fix reverse_range() to only reverse alt array if positions
 are used

In hb-coretext, when we were using scratch buffer for book-keeping,
a reverse_range() caused by the notdef-insertion loop could mess up
our log_clusters.  Ouch!
---
 src/hb-buffer.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-buffer.cc b/src/hb-buffer.cc
index 0500aa2..942177c 100644
--- a/src/hb-buffer.cc
+++ b/src/hb-buffer.cc
@@ -454,7 +454,7 @@ hb_buffer_t::reverse_range (unsigned int start,
     info[j] = t;
   }
 
-  if (pos) {
+  if (have_positions) {
     for (i = start, j = end - 1; i < j; i++, j--) {
       hb_glyph_position_t t;
 
-- 
2.7.4