diff --git a/DDCore/src/Evaluator/string.src b/DDCore/src/Evaluator/string.src
index a675a99b1de5fdc8a757bd23fb108c8c7fcdf4a8..86da311c0df315928d9f3e9420f66ab44c020a17 100644
--- a/DDCore/src/Evaluator/string.src
+++ b/DDCore/src/Evaluator/string.src
@@ -40,13 +40,18 @@ struct string {
   }
 
   // Copy constructor from string.
-  string(const string& x) { 
+  string(const string& x)  {
     x.p->n++;
     p = x.p;
   }
 
   // Destructor.
-  ~string() { if (--p->n == 0) { delete [] p->s; delete p; } }
+  ~string() {
+    if (--p->n == 0) {
+      delete [] p->s;
+      delete p;
+    }
+  }
     
   // Assignment from character string.
   string& operator=(const char* s) {
diff --git a/DDRec/src/DetectorSurfaces.cpp b/DDRec/src/DetectorSurfaces.cpp
index 1885133b7f6bb6aa14b660bf51f7c5529c277ded..1a59123be614ecfc108aebc117753671da25f261 100644
--- a/DDRec/src/DetectorSurfaces.cpp
+++ b/DDRec/src/DetectorSurfaces.cpp
@@ -23,12 +23,10 @@ namespace DD4hep {
       const VolSurfaceList* vsL = volSurfaceList(det) ;
 
       try {
+        _sL = det.extension< SurfaceList >() ;
 
-	_sL = det.extension< SurfaceList >() ;
-
-      } catch( std::runtime_error e){ 
-	
-	_sL = det.addExtension<SurfaceList >(  new SurfaceList( true )  ) ; 
+      } catch(const std::exception& e) { 
+        _sL = det.addExtension<SurfaceList >(  new SurfaceList( true )  ) ; 
       }
 
       if( ! vsL->empty() && _sL->empty() ) {  // only fill surfaces for this DetElement once
diff --git a/DDTest/src/test_surface.cc b/DDTest/src/test_surface.cc
index 78595a71884d13b106b1e9cbfd402de08453f125..29f4a2c7a78d8176c72f331c3309daaaab5b22f6 100644
--- a/DDTest/src/test_surface.cc
+++ b/DDTest/src/test_surface.cc
@@ -31,7 +31,7 @@ class STR {
   float _val ;
   std::string _str ;
 public:
-  STR ( float val ) : _val( val ){
+  STR ( float val ) : _val( val ), _str() {
     std::stringstream s1 ; 
     s1 << _val ;
     _str = s1.str() ;
diff --git a/DDTest/src/test_units.cc b/DDTest/src/test_units.cc
index 5668310b7a98f921549ec64088d88c894efccaeb..d3cc02e544d692c3c2447d6ed85643022da43ef0 100644
--- a/DDTest/src/test_units.cc
+++ b/DDTest/src/test_units.cc
@@ -24,7 +24,7 @@ class STR {
   float _val ;
   std::string _str ;
 public:
-  STR ( float val ) : _val( val ){
+  STR ( float val ) : _val(val), _str() {
     std::stringstream s1 ; 
     s1 << _val ;
     _str = s1.str() ;
diff --git a/GaudiPluginService/src/PluginService.cpp b/GaudiPluginService/src/PluginService.cpp
index 4f08f0ce95e70f9a4425757644e96779ad3d6a66..4337611b7656e4e029edd9b8e900a5446b76a7e4 100644
--- a/GaudiPluginService/src/PluginService.cpp
+++ b/GaudiPluginService/src/PluginService.cpp
@@ -66,7 +66,7 @@ namespace {
   /// Helper function used to set values in FactoryInfo data members only
   /// if the original value is empty and reporting warnings in case of
   /// inconsistencies.
-  inline void factoryInfoSetHelper(std::string& dest, const std::string value,
+  inline void factoryInfoSetHelper(std::string& dest, const std::string& value,
                                    const std::string& desc,
                                    const std::string& id) {
     if (dest.empty()) {
@@ -340,11 +340,11 @@ namespace Gaudi { namespace PluginService {
     }
 
     void Logger::report(Level lvl, const std::string& msg) {
-      static const char* levels[] = {"DEBUG  : ",
-                                     "INFO   : ",
-                                     "WARNING: ",
-                                     "ERROR  : "};
       if (lvl >= level()) {
+        static const char* levels[] = {"DEBUG  : ",
+                                       "INFO   : ",
+                                       "WARNING: ",
+                                       "ERROR  : "};
         std::cerr << levels[lvl] << msg << std::endl;
       }
     }
diff --git a/GaudiPluginService/src/capi_pluginservice.cpp b/GaudiPluginService/src/capi_pluginservice.cpp
index 94b09228531a2621e637c8ac964fca586f7ef557..1380fd2837fe8e50b346ce270d075c3fe201eb2c 100644
--- a/GaudiPluginService/src/capi_pluginservice.cpp
+++ b/GaudiPluginService/src/capi_pluginservice.cpp
@@ -32,7 +32,7 @@ cgaudi_pluginsvc_get_factory_at(cgaudi_pluginsvc_t self, int n)
          itr = reg->factories().begin(),
          iend= reg->factories().end();
        itr != iend;
-       itr++) {
+       ++itr) {
     keys.push_back(itr->first);
   }
   const char *key = keys[n].c_str();
@@ -103,7 +103,7 @@ cgaudi_factory_get_property_at(cgaudi_factory_t self, int n)
          itr = fi.properties.begin(),
          iend = fi.properties.end();
        itr != iend;
-       itr++, i++) {
+       ++itr, ++i) {
     if (i == n) {
       cprop.key = itr->first.c_str();
       return cprop;
diff --git a/UtilityApps/src/MultiView.h b/UtilityApps/src/MultiView.h
index 3a6c9776c39f7e1bf2c3f0936d663535a0dcae10..8dc7978884fea89ca91ce9abc4b71bdd99e53e68 100644
--- a/UtilityApps/src/MultiView.h
+++ b/UtilityApps/src/MultiView.h
@@ -39,7 +39,6 @@
  */
 
 class MultiView {
-
 public:
 
   TEveProjectionManager *fRPhiMgr;
@@ -197,6 +196,25 @@ public:
   {
     fRhoZEventScene->DestroyElements();
   }
+
+private:
+  MultiView(const MultiView& /* x */)
+    : fRPhiMgr(0), fRhoZMgr(0), f3DView(0), fRPhiView(0), fRhoZView(0),
+      fRPhiGeomScene(0), fRhoZGeomScene(0), fRPhiEventScene(0), fRhoZEventScene(0)  
+  {
+  }
+  MultiView& operator=(const MultiView& /* x */)  {
+    fRPhiMgr = 0;
+    fRhoZMgr = 0;
+    f3DView = 0;
+    fRPhiView = 0;
+    fRhoZView = 0;
+    fRPhiGeomScene = 0;
+    fRhoZGeomScene = 0;
+    fRPhiEventScene = 0;
+    fRhoZEventScene = 0;
+    return *this;
+  }
 };
 
 //=====================================================================================
diff --git a/examples/SimpleDetector/src/ZPlanarTracker_geo.cpp b/examples/SimpleDetector/src/ZPlanarTracker_geo.cpp
index ceb6ca19f36e1d106386c8859c0b5b525d95389f..ef755b60ab7ce5392a097a4fc7092e95c1bfb93d 100644
--- a/examples/SimpleDetector/src/ZPlanarTracker_geo.cpp
+++ b/examples/SimpleDetector/src/ZPlanarTracker_geo.cpp
@@ -185,20 +185,18 @@ static Ref_t create_element(LCDD& lcdd, xml_h e, SensitiveDetector sens)  {
       double radius = supp_distance ;
       double offset = supp_offset ;
       
-      pv = layer_assembly.placeVolume( supp_vol,Transform3D( rot, Position( ( radius + lthick/2. ) * cos(phi)  - offset * sin( phi ) ,
-									    ( radius + lthick/2. ) * sin(phi)  + offset * cos( phi ) ,
-									    0. ) ));
+      /* pv = */layer_assembly.placeVolume(supp_vol,Transform3D(rot, Position((radius+lthick/2.)*cos(phi) - offset*sin(phi),
+                                                                              (radius+lthick/2.)*sin(phi) + offset*cos(phi),
+                                                                              0. ) ));
 
       // --- place sensitive -----
       lthick = sens_thickness ;
       radius = sens_distance ;
       offset = sens_offset ;
       
-      pv = layer_assembly.placeVolume( sens_vol,Transform3D( rot, Position( ( radius + lthick/2. ) * cos(phi)  - offset * sin( phi ) ,
-									    ( radius + lthick/2. ) * sin(phi)  + offset * cos( phi ) ,
-									    0. ) ));
-
-
+      pv = layer_assembly.placeVolume( sens_vol,Transform3D(rot, Position((radius + lthick/2.0)*cos(phi) - offset*sin(phi),
+                                                                          (radius + lthick/2.0)*sin(phi) + offset*cos(phi),
+                                                                          0. ) ));
 
       //      pv.addPhysVolID("layer", layer_id ).addPhysVolID( "module" , j ).addPhysVolID("sensor", 0 )   ;
       pv.addPhysVolID( "module" , j ).addPhysVolID("sensor", 0 )   ;