From 32d69a3bd73f979660ab1050357a5dd7ceef34f1 Mon Sep 17 00:00:00 2001
From: Frank Dellaert <dellaert@gmail.com>
Date: Mon, 16 Jan 2023 18:56:40 -0800
Subject: [PATCH] Trap if conditional==null.

---
 gtsam/hybrid/GaussianMixture.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/gtsam/hybrid/GaussianMixture.cpp b/gtsam/hybrid/GaussianMixture.cpp
index 66096170b..435410358 100644
--- a/gtsam/hybrid/GaussianMixture.cpp
+++ b/gtsam/hybrid/GaussianMixture.cpp
@@ -41,8 +41,10 @@ GaussianMixture::GaussianMixture(
   logConstant_ = -std::numeric_limits<double>::infinity();
   conditionals_.visit(
       [this](const GaussianConditional::shared_ptr &conditional) {
-        this->logConstant_ = std::max(this->logConstant_,
-                                      conditional->logNormalizationConstant());
+        if (conditional) {
+          this->logConstant_ = std::max(
+              this->logConstant_, conditional->logNormalizationConstant());
+        }
       });
 }