From 0326a51f897184eae20194c7c38750a504cbd994 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Sat, 17 Apr 2010 05:23:23 +0200
Subject: [PATCH] fix use of uninitialzed calues

---
 unsupported/Eigen/src/NonLinearOptimization/rwupdt.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/unsupported/Eigen/src/NonLinearOptimization/rwupdt.h b/unsupported/Eigen/src/NonLinearOptimization/rwupdt.h
index 7703ff8de..b0bf72923 100644
--- a/unsupported/Eigen/src/NonLinearOptimization/rwupdt.h
+++ b/unsupported/Eigen/src/NonLinearOptimization/rwupdt.h
@@ -26,7 +26,10 @@ void ei_rwupdt(
         }
 
         if (rowj == 0.)
-            continue;
+        {
+          givens[j] = PlanarRotation<Scalar>(1,0);
+          continue;
+        }
 
         /* determine a givens rotation which eliminates w(j). */
         givens[j].makeGivens(-r(j,j), rowj);