diff --git a/Modules/Core/Common/src/itkFileOutputWindow.cxx b/Modules/Core/Common/src/itkFileOutputWindow.cxx
index 8254bf78965..44984d849c0 100644
--- a/Modules/Core/Common/src/itkFileOutputWindow.cxx
+++ b/Modules/Core/Common/src/itkFileOutputWindow.cxx
@@ -33,7 +33,6 @@ FileOutputWindow::FileOutputWindow()
 FileOutputWindow::~FileOutputWindow()
 {
   delete m_Stream;
-  m_Stream = nullptr;
 }
 
 void
diff --git a/Modules/Core/QuadEdgeMesh/include/itkQuadEdgeMeshBaseIterator.h b/Modules/Core/QuadEdgeMesh/include/itkQuadEdgeMeshBaseIterator.h
index 0e32f3862ee..64631eaa881 100644
--- a/Modules/Core/QuadEdgeMesh/include/itkQuadEdgeMeshBaseIterator.h
+++ b/Modules/Core/QuadEdgeMesh/include/itkQuadEdgeMeshBaseIterator.h
@@ -275,9 +275,7 @@ class ITK_TEMPLATE_EXPORT QuadEdgeMeshIteratorGeom : public QuadEdgeMeshIterator
   using OriginRefType = typename QuadEdgeType::OriginRefType;
 
 public:
-  QuadEdgeMeshIteratorGeom(QuadEdgeType * e = (QuadEdgeType *)nullptr,
-                           int            op = Superclass::OperatorOnext,
-                           bool           start = true)
+  QuadEdgeMeshIteratorGeom(QuadEdgeType * e = nullptr, int op = Superclass::OperatorOnext, bool start = true)
     : Superclass(e, op, start)
   {}
 
diff --git a/Modules/Core/QuadEdgeMesh/include/itkQuadEdgeMeshFrontIterator.h b/Modules/Core/QuadEdgeMesh/include/itkQuadEdgeMeshFrontIterator.h
index 9072eda96f1..7ddc9d96581 100644
--- a/Modules/Core/QuadEdgeMesh/include/itkQuadEdgeMeshFrontIterator.h
+++ b/Modules/Core/QuadEdgeMesh/include/itkQuadEdgeMeshFrontIterator.h
@@ -32,10 +32,7 @@
   using FrontIterator = QuadEdgeMeshFrontIterator<MeshTypeArg, QEPrimalType>;                                         \
   using ConstFrontIterator = QuadEdgeMeshConstFrontIterator<MeshTypeArg, QEPrimalType>;                               \
                                                                                                                       \
-  virtual FrontIterator BeginFront(QEPrimalType * seed = (QEPrimalType *)nullptr)                                     \
-  {                                                                                                                   \
-    return (FrontIterator(this, true, seed));                                                                         \
-  }                                                                                                                   \
+  virtual FrontIterator BeginFront(QEPrimalType * seed = nullptr) { return (FrontIterator(this, true, seed)); }       \
                                                                                                                       \
   virtual ConstFrontIterator BeginFront(QEPrimalType * seed) const { return (ConstFrontIterator(this, true, seed)); } \
                                                                                                                       \
@@ -149,9 +146,7 @@ class ITK_TEMPLATE_EXPORT QuadEdgeMeshFrontBaseIterator
 
 public:
   /** Object creation methods. */
-  QuadEdgeMeshFrontBaseIterator(MeshType * mesh = (MeshType *)nullptr,
-                                bool       start = true,
-                                QEType *   seed = (QEType *)nullptr);
+  QuadEdgeMeshFrontBaseIterator(MeshType * mesh = nullptr, bool start = true, QEType * seed = nullptr);
   virtual ~QuadEdgeMeshFrontBaseIterator();
 
   Self &
@@ -242,7 +237,7 @@ class ITK_TEMPLATE_EXPORT QuadEdgeMeshFrontIterator : public QuadEdgeMeshFrontBa
 
 public:
   /** Object creation methods. */
-  QuadEdgeMeshFrontIterator(MeshType * mesh = (MeshType *)0, bool start = true, QEType * seed = (QEType *)nullptr)
+  QuadEdgeMeshFrontIterator(MeshType * mesh = (MeshType *)0, bool start = true, QEType * seed = nullptr)
     : Superclass(mesh, start, seed)
   {}
   ~QuadEdgeMeshFrontIterator() override = default;