From d13e3441a9a3f11c7f9c9ebb21a514526987f56e Mon Sep 17 00:00:00 2001
From: Kim Motoyoshi Kalland <kim.kalland@nokia.com>
Date: Thu, 5 Jul 2012 14:52:53 +0200
Subject: Fix division by zero in triangulating stroker.

Task-number: QTBUG-15621

Change-Id: I10e0e39e57078507a01e1c2edb59fa52fd932f6c
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>
---
 src/gui/opengl/qtriangulatingstroker_p.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/gui/opengl/qtriangulatingstroker_p.h')

diff --git a/src/gui/opengl/qtriangulatingstroker_p.h b/src/gui/opengl/qtriangulatingstroker_p.h
index 4f36a4e6e6..532172c05d 100644
--- a/src/gui/opengl/qtriangulatingstroker_p.h
+++ b/src/gui/opengl/qtriangulatingstroker_p.h
@@ -123,6 +123,7 @@ inline void QTriangulatingStroker::normalVector(float x1, float y1, float x2, fl
 {
     float dx = x2 - x1;
     float dy = y2 - y1;
+    Q_ASSERT(dx != 0 || dy != 0);
 
     float pw;
 
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