From 76b88bd06e8d9c3bce16b2277b7d6f6d7c02c3ea Mon Sep 17 00:00:00 2001
From: Alex Cunningham <alexgcunningham@gmail.com>
Date: Tue, 9 Oct 2012 18:21:06 +0000
Subject: [PATCH] Added empty() to BayesNet

---
 gtsam/inference/BayesNet.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gtsam/inference/BayesNet.h b/gtsam/inference/BayesNet.h
index 05a1504cb..1077c1cad 100644
--- a/gtsam/inference/BayesNet.h
+++ b/gtsam/inference/BayesNet.h
@@ -105,6 +105,11 @@ public:
     return conditionals_.size();
   }
 
+  /** @return true if there are no conditionals/nodes */
+  bool empty() const {
+    return conditionals_.empty();
+  }
+
   /** print statistics */
   void printStats(const std::string& s = "") const;