From 69c9017b36c43dd886c527da1f8bb272dd1f6974 Mon Sep 17 00:00:00 2001
From: dellaert <dellaert@cc.gatech.edu>
Date: Tue, 26 May 2015 01:03:13 -0700
Subject: [PATCH] Added identity

---
 gtsam/base/tests/testGroup.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gtsam/base/tests/testGroup.cpp b/gtsam/base/tests/testGroup.cpp
index dadf2896c..241f71802 100644
--- a/gtsam/base/tests/testGroup.cpp
+++ b/gtsam/base/tests/testGroup.cpp
@@ -30,6 +30,7 @@ class Symmetric: private Eigen::PermutationMatrix<N> {
       Eigen::PermutationMatrix<N>(P) {
   }
 public:
+  static Symmetric identity() { return Symmetric(); }
   Symmetric() {
     Eigen::PermutationMatrix<N>::setIdentity();
   }