From ff05eee0ca8062221c88ab01b42154ff2a89ba86 Mon Sep 17 00:00:00 2001
From: Nghia Ho <nghia@prenav.com>
Date: Thu, 13 Dec 2018 17:03:31 -0800
Subject: [PATCH] fix for valgrind invalid read warning

---
 gtsam/nonlinear/ISAM2Clique.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam/nonlinear/ISAM2Clique.cpp b/gtsam/nonlinear/ISAM2Clique.cpp
index c55ca7959..48295f338 100644
--- a/gtsam/nonlinear/ISAM2Clique.cpp
+++ b/gtsam/nonlinear/ISAM2Clique.cpp
@@ -172,7 +172,7 @@ bool ISAM2Clique::valuesChanged(const KeySet& replaced,
                                 double threshold) const {
   auto frontals = conditional_->frontals();
   if (replaced.exists(frontals.front())) return true;
-  auto diff = originalValues - delta.vector(frontals);
+  Vector diff = originalValues - delta.vector(frontals);
   return diff.lpNorm<Eigen::Infinity>() >= threshold;
 }