From a4df84f78552510a157a1bad85c13562479b76c0 Mon Sep 17 00:00:00 2001
From: Arne Morten Kvarving <arne.morten.kvarving@sintef.no>
Date: Thu, 20 Oct 2022 11:26:46 +0200
Subject: [PATCH] fixed: guard against invalid dereference in getRho

---
 opm/simulators/wells/StandardWellGeneric.hpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/opm/simulators/wells/StandardWellGeneric.hpp b/opm/simulators/wells/StandardWellGeneric.hpp
index 812b07f63..4cd02f783 100644
--- a/opm/simulators/wells/StandardWellGeneric.hpp
+++ b/opm/simulators/wells/StandardWellGeneric.hpp
@@ -106,7 +106,10 @@ protected:
     mutable BVectorWell Bx_;
     mutable BVectorWell invDrw_;
 
-    double getRho() const { return perf_densities_[0]; }
+    double getRho() const
+    {
+        return this->perf_densities_.empty() ? 0.0 : perf_densities_[0];
+    }
 };
 
 }