From b9ce41ce025f5199f2844a21b800e4346d800206 Mon Sep 17 00:00:00 2001
From: Varun Agrawal <varagrawal@gmail.com>
Date: Thu, 6 Aug 2020 20:58:14 -0500
Subject: [PATCH] fix warning in FrobeniusWormholeFactor

---
 gtsam/slam/FrobeniusFactor.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gtsam/slam/FrobeniusFactor.cpp b/gtsam/slam/FrobeniusFactor.cpp
index 6981a6a1c..80aeea947 100644
--- a/gtsam/slam/FrobeniusFactor.cpp
+++ b/gtsam/slam/FrobeniusFactor.cpp
@@ -67,7 +67,8 @@ FrobeniusWormholeFactor::FrobeniusWormholeFactor(
     G_ = boost::make_shared<Matrix>();
     *G_ = SOn::VectorizedGenerators(p); // expensive!
   }
-  if (G_->rows() != pp_ || G_->cols() != SOn::Dimension(p))
+  if (static_cast<size_t>(G_->rows()) != pp_ ||
+      static_cast<size_t>(G_->cols()) != SOn::Dimension(p))
     throw std::invalid_argument("FrobeniusWormholeFactor: passed in generators "
                                 "of incorrect dimension.");
 }