From eb82959d6688f9e58be4b67670afba3649f1f799 Mon Sep 17 00:00:00 2001
From: Thiago Macieira <thiago.macieira@intel.com>
Date: Sat, 2 May 2015 10:44:37 -0700
Subject: [PATCH] Fix undefined behavior in left-shifting into negative

It's undefined behavior to left or right-shift a signed integer such
that the sign changes. Since SymbolCsbBit is 31, make sure we use
unsigned numbers.

Found by ICC
qplatformfontdatabase.cpp(614): error #68: integer conversion resulted in a change of sign

Change-Id: Idf715b895bac4d56b4afffff13da78d294b1248e
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
---
 src/gui/text/qplatformfontdatabase.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gui/text/qplatformfontdatabase.cpp b/src/gui/text/qplatformfontdatabase.cpp
index 5fa43948aa..502348a79a 100644
--- a/src/gui/text/qplatformfontdatabase.cpp
+++ b/src/gui/text/qplatformfontdatabase.cpp
@@ -611,7 +611,7 @@ QSupportedWritingSystems QPlatformFontDatabase::writingSystemsFromTrueTypeBits(q
         hasScript = true;
         //qDebug("font %s supports Korean", familyName.latin1());
     }
-    if (codePageRange[0] & (1 << SymbolCsbBit)) {
+    if (codePageRange[0] & (1U << SymbolCsbBit)) {
         writingSystems = QSupportedWritingSystems();
         hasScript = false;
     }