From 1d1ccbdec5411e259225130ff20d139df7da4f33 Mon Sep 17 00:00:00 2001
From: Paul Gessinger <paul.gessinger@cern.ch>
Date: Fri, 18 Oct 2024 14:07:27 +0200
Subject: [PATCH] fix: Move `default` constructor impl in CPP file (#3752)

This (somehow) fixes a faulty `-Wnull-dereference` case in GCC 11
---
 Core/include/Acts/Geometry/CylinderVolumeBounds.hpp | 2 +-
 Core/src/Geometry/CylinderVolumeBounds.cpp          | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Core/include/Acts/Geometry/CylinderVolumeBounds.hpp b/Core/include/Acts/Geometry/CylinderVolumeBounds.hpp
index 1951d96b2da..002af04cd59 100644
--- a/Core/include/Acts/Geometry/CylinderVolumeBounds.hpp
+++ b/Core/include/Acts/Geometry/CylinderVolumeBounds.hpp
@@ -128,7 +128,7 @@ class CylinderVolumeBounds : public VolumeBounds {
   /// Copy Constructor
   ///
   /// @param cylbo is the source cylinder volume bounds for the copy
-  CylinderVolumeBounds(const CylinderVolumeBounds& cylbo) = default;
+  CylinderVolumeBounds(const CylinderVolumeBounds& cylbo);
 
   ~CylinderVolumeBounds() override = default;
   CylinderVolumeBounds& operator=(const CylinderVolumeBounds& cylbo) = default;
diff --git a/Core/src/Geometry/CylinderVolumeBounds.cpp b/Core/src/Geometry/CylinderVolumeBounds.cpp
index c7bb8192f4a..d9af620ea45 100644
--- a/Core/src/Geometry/CylinderVolumeBounds.cpp
+++ b/Core/src/Geometry/CylinderVolumeBounds.cpp
@@ -309,4 +309,7 @@ void CylinderVolumeBounds::set(
   }
 }
 
+CylinderVolumeBounds::CylinderVolumeBounds(const CylinderVolumeBounds& cylbo) =
+    default;
+
 }  // namespace Acts