From c2b151d95262a8dc2d2ce94e19ab0ef5b0c8f98d Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Sun, 10 Aug 2014 18:52:07 -0400
Subject: [PATCH] Fix hb_in_range() for types smaller than int

As exercised by hb-coretext .notdef code.
---
 src/hb-private.hh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/hb-private.hh b/src/hb-private.hh
index e97aab6c5..2709c0efe 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -848,7 +848,9 @@ hb_in_range (T u, T lo, T hi)
    * to generate a warning than unused variables. */
   ASSERT_STATIC (sizeof (hb_assert_unsigned_t<T>) >= 0);
 
-  return (u - lo) <= (hi - lo);
+  /* The casts below are important as if T is smaller than int,
+   * the subtract results will become a signed int! */
+  return (T)(u - lo) <= (T)(hi - lo);
 }
 
 template <typename T> static inline bool