From cb885fb980b11eded918f41d3c04fa414f2bbdd2 Mon Sep 17 00:00:00 2001
From: Varun Agrawal <varagrawal@gmail.com>
Date: Tue, 3 Jan 2023 03:47:55 -0500
Subject: [PATCH] check for nullptr in HybridConditional::equals

---
 gtsam/hybrid/HybridConditional.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/gtsam/hybrid/HybridConditional.cpp b/gtsam/hybrid/HybridConditional.cpp
index 6657aec8c..611f9b0e7 100644
--- a/gtsam/hybrid/HybridConditional.cpp
+++ b/gtsam/hybrid/HybridConditional.cpp
@@ -117,6 +117,22 @@ bool HybridConditional::equals(const HybridFactor &other, double tol) const {
     return other != nullptr && dc->equals(*other, tol);
   }
   return inner_->equals(*(e->inner_), tol);
+
+  if (inner_) {
+    if (e->inner_) {
+      // Both the inner_ factors are not null
+      return inner_->equals(*(e->inner_), tol);
+    } else {
+      return false;
+    }
+  } else {
+    if (e->inner_) {
+      return false;
+    } else {
+      // Both inner_ are null
+      return true;
+    }
+  }
 }
 
 /* ************************************************************************ */