diff --git a/src/OpenMesh/Apps/ProgViewer/ProgViewerWidget.hh b/src/OpenMesh/Apps/ProgViewer/ProgViewerWidget.hh
index bc644622..84d6a94f 100644
--- a/src/OpenMesh/Apps/ProgViewer/ProgViewerWidget.hh
+++ b/src/OpenMesh/Apps/ProgViewer/ProgViewerWidget.hh
@@ -95,7 +95,11 @@ public:
 public:   
   /// default constructor
   ProgViewerWidget(QWidget* _parent=0)
-    : MeshViewerWidget(_parent)
+    : MeshViewerWidget(_parent),
+      n_base_vertices_(0),
+      n_base_faces_(0),
+      n_detail_vertices_(0),
+      n_max_vertices_(0)
   {
     timer_ = new QTimer(this);
 
diff --git a/src/OpenMesh/Apps/QtViewer/QGLViewerWidget.hh b/src/OpenMesh/Apps/QtViewer/QGLViewerWidget.hh
index cd4cf8eb..44bf295a 100644
--- a/src/OpenMesh/Apps/QtViewer/QGLViewerWidget.hh
+++ b/src/OpenMesh/Apps/QtViewer/QGLViewerWidget.hh
@@ -74,7 +74,7 @@ public:
   typedef QGLWidget Super;
    
   // Default constructor.
-  QGLViewerWidget( QWidget* _parent=0 );
+  explicit QGLViewerWidget( QWidget* _parent=0 );
 
   // 
   QGLViewerWidget( QGLFormat& _fmt, QWidget* _parent=0 );
diff --git a/src/OpenMesh/Apps/Subdivider/MeshViewerWidget.hh b/src/OpenMesh/Apps/Subdivider/MeshViewerWidget.hh
index 073a08f9..5182a677 100644
--- a/src/OpenMesh/Apps/Subdivider/MeshViewerWidget.hh
+++ b/src/OpenMesh/Apps/Subdivider/MeshViewerWidget.hh
@@ -80,7 +80,7 @@ public:
   ~MeshViewerWidget() {}
 
   /// open mesh
-  inline bool open_mesh(const char* _filename, OpenMesh::IO::Options _opt)
+  inline bool open_mesh(const char* _filename, OpenMesh::IO::Options _opt) override
   {
     if ( Base::open_mesh( _filename, _opt ) )
     {
diff --git a/src/OpenMesh/Apps/VDProgMesh/Synthesizer/VDPMSynthesizerViewerWidget.cc b/src/OpenMesh/Apps/VDProgMesh/Synthesizer/VDPMSynthesizerViewerWidget.cc
index 2c6d28d4..026c7318 100644
--- a/src/OpenMesh/Apps/VDProgMesh/Synthesizer/VDPMSynthesizerViewerWidget.cc
+++ b/src/OpenMesh/Apps/VDProgMesh/Synthesizer/VDPMSynthesizerViewerWidget.cc
@@ -78,7 +78,14 @@ namespace OpenMesh {
 //== IMPLEMENTATION ========================================================== 
 
 VDPMSynthesizerViewerWidget::VDPMSynthesizerViewerWidget(QWidget* _parent, const char* _name)
-  : MeshViewerWidget(_parent)
+  : MeshViewerWidget(_parent),
+    kappa_square_(0.0),
+    adaptive_mode_(false),
+    n_base_vertices_(0),
+    n_base_edges_(0),
+    n_base_faces_(0),
+    n_details_(0)
+
 {
   adaptive_mode_ = true;
 }
diff --git a/src/OpenMesh/Core/IO/OMFormat.hh b/src/OpenMesh/Core/IO/OMFormat.hh
index 96b2a4fc..66aaf26a 100644
--- a/src/OpenMesh/Core/IO/OMFormat.hh
+++ b/src/OpenMesh/Core/IO/OMFormat.hh
@@ -252,7 +252,7 @@ namespace OMFormat {
 
       PropertyName( ) { }
 
-      PropertyName( const std::string& _name ) { *this = _name; }
+      explicit PropertyName( const std::string& _name ) { *this = _name; }
 
       bool is_valid() const { return is_valid( size() ); }
 
diff --git a/src/OpenMesh/Core/IO/exporter/ExporterT.hh b/src/OpenMesh/Core/IO/exporter/ExporterT.hh
index b788988c..9de326ca 100644
--- a/src/OpenMesh/Core/IO/exporter/ExporterT.hh
+++ b/src/OpenMesh/Core/IO/exporter/ExporterT.hh
@@ -84,7 +84,7 @@ class ExporterT : public BaseExporter
 public:
 
   // Constructor
-  ExporterT(const Mesh& _mesh) : mesh_(_mesh) {}
+  explicit ExporterT(const Mesh& _mesh) : mesh_(_mesh) {}
 
 
   // get vertex data
diff --git a/src/OpenMesh/Core/IO/importer/ImporterT.hh b/src/OpenMesh/Core/IO/importer/ImporterT.hh
index f1ffdf68..50ee3192 100644
--- a/src/OpenMesh/Core/IO/importer/ImporterT.hh
+++ b/src/OpenMesh/Core/IO/importer/ImporterT.hh
@@ -89,7 +89,7 @@ public:
   typedef std::vector<VertexHandle>  VHandles;
 
 
-  ImporterT(Mesh& _mesh) : mesh_(_mesh), halfedgeNormals_() {}
+  explicit ImporterT(Mesh& _mesh) : mesh_(_mesh), halfedgeNormals_() {}
 
 
   virtual VertexHandle add_vertex(const Vec3f& _point) override
diff --git a/src/OpenMesh/Core/IO/reader/OMReader.cc b/src/OpenMesh/Core/IO/reader/OMReader.cc
index 3098c4e7..41a4b3a9 100644
--- a/src/OpenMesh/Core/IO/reader/OMReader.cc
+++ b/src/OpenMesh/Core/IO/reader/OMReader.cc
@@ -387,10 +387,12 @@ bool _OMReader_::read_binary_vertex_chunk(std::istream &_is, BaseImporter &_bi,
     default: // skip unknown chunks
     {
       omerr() << "Unknown chunk type ignored!\n";
-      size_t size_of = header_.n_vertices_ * OMFormat::vector_size(chunk_header_);
-      _is.ignore(size_of);
-      bytes_ += size_of;
+      size_t chunk_size = header_.n_vertices_ * OMFormat::vector_size(chunk_header_);
+      _is.ignore(chunk_size);
+      bytes_ += chunk_size;
+      break;
     }
+
   }
 
   // all chunk data has been read..?!
@@ -505,9 +507,9 @@ bool _OMReader_::read_binary_face_chunk(std::istream &_is, BaseImporter &_bi, Op
     default: // skip unknown chunks
     {
       omerr() << "Unknown chunk type ignore!\n";
-      size_t size_of = OMFormat::chunk_data_size(header_, chunk_header_);
-      _is.ignore(size_of);
-      bytes_ += size_of;
+      size_t chunk_size = OMFormat::chunk_data_size(header_, chunk_header_);
+      _is.ignore(chunk_size);
+      bytes_ += chunk_size;
     }
   }
   return fidx == header_.n_faces_;
@@ -549,9 +551,9 @@ bool _OMReader_::read_binary_edge_chunk(std::istream &_is, BaseImporter &_bi, Op
 
     default:
       // skip unknown type
-      size_t size_of = OMFormat::chunk_data_size(header_, chunk_header_);
-      _is.ignore(size_of);
-      bytes_ += size_of;
+      size_t chunk_size = OMFormat::chunk_data_size(header_, chunk_header_);
+      _is.ignore(chunk_size);
+      bytes_ += chunk_size;
   }
 
   return b < bytes_;
@@ -627,9 +629,9 @@ bool _OMReader_::read_binary_halfedge_chunk(std::istream &_is, BaseImporter &_bi
     default:
       // skip unknown chunk
       omerr() << "Unknown chunk type ignored!\n";
-      size_t size_of = OMFormat::chunk_data_size(header_, chunk_header_);
-      _is.ignore(size_of);
-      bytes_ += size_of;
+      size_t chunk_size = OMFormat::chunk_data_size(header_, chunk_header_);
+      _is.ignore(chunk_size);
+      bytes_ += chunk_size;
   }
 
   return b < bytes_;
@@ -655,9 +657,9 @@ bool _OMReader_::read_binary_mesh_chunk(std::istream &_is, BaseImporter &_bi, Op
 
     default:
       // skip unknown chunk
-      size_t size_of = OMFormat::chunk_data_size(header_, chunk_header_);
-      _is.ignore(size_of);
-      bytes_ += size_of;
+      size_t chunk_size = OMFormat::chunk_data_size(header_, chunk_header_);
+      _is.ignore(chunk_size);
+      bytes_ += chunk_size;
   }
 
   return b < bytes_;
diff --git a/src/OpenMesh/Core/IO/writer/PLYWriter.hh b/src/OpenMesh/Core/IO/writer/PLYWriter.hh
index 3fd4d9ff..08814955 100644
--- a/src/OpenMesh/Core/IO/writer/PLYWriter.hh
+++ b/src/OpenMesh/Core/IO/writer/PLYWriter.hh
@@ -120,7 +120,7 @@ private:
   {
     ValueType type;
     const BaseProperty*  property;
-    CustomProperty(const BaseProperty* const _p):type(Unsupported),property(_p){}
+    explicit CustomProperty(const BaseProperty* const _p):type(Unsupported),property(_p){}
   };
 
   const char* nameOfType_[12];
diff --git a/src/OpenMesh/Core/Mesh/ArrayKernel.hh b/src/OpenMesh/Core/Mesh/ArrayKernel.hh
index b6d76792..d538aeb7 100644
--- a/src/OpenMesh/Core/Mesh/ArrayKernel.hh
+++ b/src/OpenMesh/Core/Mesh/ArrayKernel.hh
@@ -340,10 +340,10 @@ public:
   void clean_keep_reservation();
 
   // --- number of items ---
-  size_t n_vertices()  const { return vertices_.size(); }
-  size_t n_halfedges() const { return 2*edges_.size(); }
-  size_t n_edges()     const { return edges_.size(); }
-  size_t n_faces()     const { return faces_.size(); }
+  size_t n_vertices()  const override  { return vertices_.size(); }
+  size_t n_halfedges() const override { return 2*edges_.size(); }
+  size_t n_edges()     const override { return edges_.size(); }
+  size_t n_faces()     const override { return faces_.size(); }
 
   bool vertices_empty()  const { return vertices_.empty(); }
   bool halfedges_empty() const { return edges_.empty(); }
@@ -697,7 +697,7 @@ public:
     typedef StatusSetT<Handle> Base;
 
   public:
-    AutoStatusSetT(ArrayKernel& _kernel)
+    explicit AutoStatusSetT(ArrayKernel& _kernel)
     : StatusSetT<Handle>(_kernel, _kernel.pop_bit_mask(Handle()))
     { /*assert(size() == 0);*/ } //the set should be empty on creation
 
diff --git a/src/OpenMesh/Core/Mesh/PolyConnectivity.hh b/src/OpenMesh/Core/Mesh/PolyConnectivity.hh
index 650e2f93..78e8a3f9 100644
--- a/src/OpenMesh/Core/Mesh/PolyConnectivity.hh
+++ b/src/OpenMesh/Core/Mesh/PolyConnectivity.hh
@@ -1121,7 +1121,7 @@ public:
           typedef ITER_TYPE iterator;
           typedef ITER_TYPE const_iterator;
 
-          EntityRange(CONTAINER_TYPE &container) : container_(container) {}
+          explicit EntityRange(CONTAINER_TYPE &container) : container_(container) {}
           ITER_TYPE begin() const { return (container_.*begin_fn)(); }
           ITER_TYPE end() const { return (container_.*end_fn)(); }
 
diff --git a/src/OpenMesh/Core/Utils/Property.hh b/src/OpenMesh/Core/Utils/Property.hh
index 60b31abb..3fe88b3f 100644
--- a/src/OpenMesh/Core/Utils/Property.hh
+++ b/src/OpenMesh/Core/Utils/Property.hh
@@ -230,7 +230,7 @@ public:
 
 public:
 
-  PropertyT(const std::string& _name = "<unknown>")
+  explicit PropertyT(const std::string& _name = "<unknown>")
     : BaseProperty(_name)
   { }
 
@@ -394,7 +394,7 @@ public:
 
 public:
 
-  PropertyT(const std::string& _name = "<unknown>")
+  explicit PropertyT(const std::string& _name = "<unknown>")
     : BaseProperty(_name)
   { }
 
diff --git a/src/OpenMesh/Core/Utils/PropertyContainer.hh b/src/OpenMesh/Core/Utils/PropertyContainer.hh
index 2ce55e0e..7ac94409 100644
--- a/src/OpenMesh/Core/Utils/PropertyContainer.hh
+++ b/src/OpenMesh/Core/Utils/PropertyContainer.hh
@@ -322,21 +322,21 @@ private:
 #ifndef DOXY_IGNORE_THIS
   struct Reserve
   {
-    Reserve(size_t _n) : n_(_n) {}
+    explicit Reserve(size_t _n) : n_(_n) {}
     void operator()(BaseProperty* _p) const { if (_p) _p->reserve(n_); }
     size_t n_;
   };
 
   struct Resize
   {
-    Resize(size_t _n) : n_(_n) {}
+    explicit Resize(size_t _n) : n_(_n) {}
     void operator()(BaseProperty* _p) const { if (_p) _p->resize(n_); }
     size_t n_;
   };
 
   struct ResizeIfSmaller
   {
-    ResizeIfSmaller(size_t _n) : n_(_n) {}
+    explicit ResizeIfSmaller(size_t _n) : n_(_n) {}
     void operator()(BaseProperty* _p) const { if (_p && _p->n_elements() < n_) _p->resize(n_); }
     size_t n_;
   };
diff --git a/src/OpenMesh/Tools/Decimater/ModQuadricT.hh b/src/OpenMesh/Tools/Decimater/ModQuadricT.hh
index 9d86a067..444c1098 100644
--- a/src/OpenMesh/Tools/Decimater/ModQuadricT.hh
+++ b/src/OpenMesh/Tools/Decimater/ModQuadricT.hh
@@ -85,7 +85,7 @@ public:
   /** Constructor
    *  \internal
    */
-  ModQuadricT( MeshT &_mesh )
+  explicit ModQuadricT( MeshT &_mesh )
     : Base(_mesh, false)
   {
     unset_max_err();
@@ -103,7 +103,7 @@ public:
 public: // inherited
 
   /// Initalize the module and prepare the mesh for decimation.
-  virtual void initialize(void);
+  virtual void initialize(void) override;
 
   /** Compute collapse priority based on error quadrics.
    *
@@ -138,7 +138,7 @@ public: // inherited
   }
 
   /// set the percentage of maximum quadric error
-  void set_error_tolerance_factor(double _factor);
+  void set_error_tolerance_factor(double _factor) override;
 
 
 
diff --git a/src/OpenMesh/Tools/Subdivider/Adaptive/Composite/RuleInterfaceT.hh b/src/OpenMesh/Tools/Subdivider/Adaptive/Composite/RuleInterfaceT.hh
index bf5867ef..da9f8227 100644
--- a/src/OpenMesh/Tools/Subdivider/Adaptive/Composite/RuleInterfaceT.hh
+++ b/src/OpenMesh/Tools/Subdivider/Adaptive/Composite/RuleInterfaceT.hh
@@ -96,7 +96,7 @@ struct RuleHandleT : public BaseHandle
   protected:\
     friend class CompositeT<mesh_type>; \
   public: \
-    const char *type() const { return #classname; } \
+    const char *type() const override { return #classname; } \
     typedef classname<mesh_type>     Self;          \
     typedef RuleHandleT< Self >      Handle
 
diff --git a/src/OpenMesh/Tools/Subdivider/Adaptive/Composite/RulesT.hh b/src/OpenMesh/Tools/Subdivider/Adaptive/Composite/RulesT.hh
index 0fdf3e79..576193de 100644
--- a/src/OpenMesh/Tools/Subdivider/Adaptive/Composite/RulesT.hh
+++ b/src/OpenMesh/Tools/Subdivider/Adaptive/Composite/RulesT.hh
@@ -242,7 +242,7 @@ public:
 
   explicit FVc(M& _mesh) : Inherited(_mesh) { init_coeffs(50); }
 
-  void raise(typename M::VertexHandle& _vh, state_t _target_state);
+  void raise(typename M::VertexHandle& _vh, state_t _target_state) override;
   MIPS_WARN_WA(Face) // avoid warning
   MIPS_WARN_WA(Edge) // avoid warning
 
@@ -412,7 +412,7 @@ public:
 
   explicit EVc(M& _mesh) : Inherited(_mesh) { init_coeffs(50); }
 
-  void raise(typename M::VertexHandle& _vh, state_t _target_state);
+  void raise(typename M::VertexHandle& _vh, state_t _target_state) override;
   MIPS_WARN_WA(Face) // avoid warning
   MIPS_WARN_WA(Edge) // avoid warning
 
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/CatmullClarkT.hh b/src/OpenMesh/Tools/Subdivider/Uniform/CatmullClarkT.hh
index 2d6faa35..a1d71f97 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/CatmullClarkT.hh
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/CatmullClarkT.hh
@@ -114,15 +114,15 @@ public:
 
 public:
 
-  const char *name() const { return "Uniform CatmullClark"; }
+  const char *name() const override { return "Uniform CatmullClark"; }
 
 protected:
 
   /// Initialize properties and weights
-  virtual bool prepare( MeshType& _m );
+  virtual bool prepare( MeshType& _m ) override;
 
   /// Remove properties and weights
-  virtual bool cleanup( MeshType& _m );
+  virtual bool cleanup( MeshType& _m ) override;
 
   /** \brief Execute n subdivision steps
      *
@@ -131,7 +131,7 @@ protected:
      * @param _update_points Unused here
      * @return successful?
      */
-  virtual bool subdivide( MeshType& _m, size_t _n , const bool _update_points = true);
+  virtual bool subdivide( MeshType& _m, size_t _n , const bool _update_points = true) override;
 
 private:
 
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/Composite/CompositeT.hh b/src/OpenMesh/Tools/Subdivider/Uniform/Composite/CompositeT.hh
index 66327cd0..3227ded9 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/Composite/CompositeT.hh
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/Composite/CompositeT.hh
@@ -102,13 +102,13 @@ public:
 
 public: // inherited interface
 
-  virtual const char *name( void ) const = 0;
+  virtual const char *name( void ) const override = 0;
 
 protected: // inherited interface
 
-  bool prepare( MeshType& _m );
+  bool prepare( MeshType& _m ) override;
 
-  bool subdivide( MeshType& _m, size_t _n, const bool _update_points = true  )
+  bool subdivide( MeshType& _m, size_t _n, const bool _update_points = true  ) override
   {
     assert( p_mesh_ == &_m );
 
@@ -124,7 +124,7 @@ protected: // inherited interface
 #ifdef NDEBUG
   bool cleanup( MeshType& ) 
 #else
-  bool cleanup( MeshType& _m ) 
+  bool cleanup( MeshType& _m ) override
 #endif
   { 
     assert( p_mesh_ == &_m );
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/CompositeLoopT.hh b/src/OpenMesh/Tools/Subdivider/Uniform/CompositeLoopT.hh
index a52db9f4..624760a1 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/CompositeLoopT.hh
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/CompositeLoopT.hh
@@ -87,11 +87,11 @@ public:
 
 public:
   
-  const char *name() const { return "Uniform Composite Loop"; }
+  const char *name() const override { return "Uniform Composite Loop"; }
   
 protected: // inherited interface
 
-  void apply_rules(void)  
+  void apply_rules(void) override
   { 
     Inherited::Tvv4(); 
     Inherited::VdE(); 
@@ -119,7 +119,7 @@ protected:
                     weights_.end(), compute_weight() );
     }
     
-    double operator()(size_t _valence) { return weights_[_valence]; }
+    double operator()(size_t _valence) override { return weights_[_valence]; }
 
     /// \internal
     struct compute_weight 
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/CompositeSqrt3T.hh b/src/OpenMesh/Tools/Subdivider/Uniform/CompositeSqrt3T.hh
index c9af0fcb..ed1030e2 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/CompositeSqrt3T.hh
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/CompositeSqrt3T.hh
@@ -87,11 +87,11 @@ public:
 
 public:
    
-  const char *name() const { return "Uniform Composite Sqrt3"; }
+  const char *name() const override { return "Uniform Composite Sqrt3"; }
 
 protected: // inherited interface
 
-  void apply_rules(void)  
+  void apply_rules(void) override
   {
     Inherited::Tvv3(); 
     Inherited::VF(); 
@@ -117,7 +117,7 @@ protected:
                     weights_.end(), compute_weight() );
     }
     
-    double operator()(size_t _valence) { return weights_[_valence]; }
+    double operator()(size_t _valence) override { return weights_[_valence]; }
 
   /** \internal
    */
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/LoopT.hh b/src/OpenMesh/Tools/Subdivider/Uniform/LoopT.hh
index f7253c1d..1c92502e 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/LoopT.hh
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/LoopT.hh
@@ -116,7 +116,7 @@ public:
 public:
 
 
-  const char *name() const { return "Uniform Loop"; }
+  const char *name() const override { return "Uniform Loop"; }
 
 
   /// Pre-compute weights
@@ -130,7 +130,7 @@ public:
 protected:
 
 
-  bool prepare( mesh_t& _m )
+  bool prepare( mesh_t& _m ) override
   {
     _m.add_property( vp_pos_ );
     _m.add_property( ep_pos_ );
@@ -138,7 +138,7 @@ protected:
   }
 
 
-  bool cleanup( mesh_t& _m )
+  bool cleanup( mesh_t& _m ) override
   {
     _m.remove_property( vp_pos_ );
     _m.remove_property( ep_pos_ );
@@ -146,7 +146,7 @@ protected:
   }
 
 
-  bool subdivide( mesh_t& _m, size_t _n, const bool _update_points = true)
+  bool subdivide( mesh_t& _m, size_t _n, const bool _update_points = true) override
   {
 
     ///TODO:Implement fixed positions
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/ModifiedButterFlyT.hh b/src/OpenMesh/Tools/Subdivider/Uniform/ModifiedButterFlyT.hh
index 61ac23b9..c437e1e9 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/ModifiedButterFlyT.hh
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/ModifiedButterFlyT.hh
@@ -117,7 +117,7 @@ public:
 public:
 
 
-  const char *name() const { return "Uniform Spectral"; }
+  const char *name() const override { return "Uniform Spectral"; }
 
 
   /// Pre-compute weights
@@ -158,7 +158,7 @@ public:
 protected:
 
 
-  bool prepare( mesh_t& _m )
+  bool prepare( mesh_t& _m ) override
   {
     _m.add_property( vp_pos_ );
     _m.add_property( ep_pos_ );
@@ -166,7 +166,7 @@ protected:
   }
 
 
-  bool cleanup( mesh_t& _m )
+  bool cleanup( mesh_t& _m ) override
   {
     _m.remove_property( vp_pos_ );
     _m.remove_property( ep_pos_ );
@@ -174,7 +174,7 @@ protected:
   }
 
 
-  bool subdivide( MeshType& _m, size_t _n , const bool _update_points = true)
+  bool subdivide( MeshType& _m, size_t _n , const bool _update_points = true) override
   {
 
     ///TODO:Implement fixed positions
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/Sqrt3InterpolatingSubdividerLabsikGreinerT.hh b/src/OpenMesh/Tools/Subdivider/Uniform/Sqrt3InterpolatingSubdividerLabsikGreinerT.hh
index 5d4182cc..70dca4db 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/Sqrt3InterpolatingSubdividerLabsikGreinerT.hh
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/Sqrt3InterpolatingSubdividerLabsikGreinerT.hh
@@ -128,7 +128,7 @@ public:
 public:
 
 
-  const char *name() const { return "Uniform Interpolating Sqrt3"; }
+  const char *name() const override { return "Uniform Interpolating Sqrt3"; }
 
   /// Pre-compute weights
   void init_weights(size_t _max_valence=50)
@@ -170,7 +170,7 @@ public:
 protected:
 
 
-  bool prepare( MeshType& _m )
+  bool prepare( MeshType& _m ) override
   {
     _m.request_edge_status();
     _m.add_property( fp_pos_ );
@@ -183,7 +183,7 @@ protected:
   }
 
 
-  bool cleanup( MeshType& _m )
+  bool cleanup( MeshType& _m ) override
   {
     _m.release_edge_status();
     _m.remove_property( fp_pos_ );
@@ -193,7 +193,7 @@ protected:
   }
 
 
-  bool subdivide( MeshType& _m, size_t _n , const bool _update_points = true)
+  bool subdivide( MeshType& _m, size_t _n , const bool _update_points = true) override
   {
 
     ///TODO:Implement fixed positions
diff --git a/src/OpenMesh/Tools/Subdivider/Uniform/Sqrt3T.hh b/src/OpenMesh/Tools/Subdivider/Uniform/Sqrt3T.hh
index dcea039b..aacb2083 100644
--- a/src/OpenMesh/Tools/Subdivider/Uniform/Sqrt3T.hh
+++ b/src/OpenMesh/Tools/Subdivider/Uniform/Sqrt3T.hh
@@ -121,7 +121,7 @@ public:
 public:
 
 
-  const char *name() const { return "Uniform Sqrt3"; }
+  const char *name() const override { return "Uniform Sqrt3"; }
 
   
   /// Pre-compute weights
@@ -135,7 +135,7 @@ public:
 protected:
 
 
-  bool prepare( MeshType& _m )
+  bool prepare( MeshType& _m ) override
   {
     _m.request_edge_status();
     _m.add_property( vp_pos_ );
@@ -148,7 +148,7 @@ protected:
   }
 
 
-  bool cleanup( MeshType& _m )
+  bool cleanup( MeshType& _m ) override
   {
     _m.release_edge_status();
     _m.remove_property( vp_pos_ );
@@ -157,7 +157,7 @@ protected:
     return true;
   }
 
-  bool subdivide( MeshType& _m, size_t _n , const bool _update_points = true)
+  bool subdivide( MeshType& _m, size_t _n , const bool _update_points = true) override
   {
 
     ///TODO:Implement fixed positions
diff --git a/src/OpenMesh/Tools/Utils/HeapT.hh b/src/OpenMesh/Tools/Utils/HeapT.hh
index e4f0ba63..8ccfd8f3 100644
--- a/src/OpenMesh/Tools/Utils/HeapT.hh
+++ b/src/OpenMesh/Tools/Utils/HeapT.hh
@@ -152,7 +152,7 @@ public:
   {}
 #else
   /// Construct with a given \c HeapIterface.
-  HeapT(const HeapInterface &_interface)
+  explicit HeapT(const HeapInterface &_interface)
   : HeapVector(),  interface_(_interface)
   {}
 #endif
diff --git a/src/OpenMesh/Tools/Utils/StripifierT.hh b/src/OpenMesh/Tools/Utils/StripifierT.hh
index 4f27a856..21ebc00c 100644
--- a/src/OpenMesh/Tools/Utils/StripifierT.hh
+++ b/src/OpenMesh/Tools/Utils/StripifierT.hh
@@ -88,7 +88,7 @@ public:
 
 
   /// Default constructor
-  StripifierT(Mesh& _mesh);
+  explicit StripifierT(Mesh& _mesh);
 
   /// Destructor
   ~StripifierT();