From a27a31b9ee2601a05575cb581dc227caa73742c4 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 10 May 2019 16:26:19 -0700
Subject: [PATCH] Minor

---
 src/hb-ot-layout-common.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-ot-layout-common.hh b/src/hb-ot-layout-common.hh
index 06062ea1b..40349a01d 100644
--- a/src/hb-ot-layout-common.hh
+++ b/src/hb-ot-layout-common.hh
@@ -1224,7 +1224,7 @@ struct ClassDefFormat1
     hb_codepoint_t glyph_max = +glyphs | hb_reduce (hb_max, 0u);
 
     startGlyph = glyph_min;
-    classValue.len = glyph_max - glyph_min + 1;
+    c->check_assign (classValue.len, glyph_max - glyph_min + 1);
     if (unlikely (!c->extend (classValue))) return_trace (false);
 
     for (unsigned int i = 0; i < glyphs.length; i++)