PD: modernize C++: use default member init

src/Mod/PartDesign/App/FeatureAddSub.cpp

@@ -43,7 +43,6 @@ namespace PartDesign {
 PROPERTY_SOURCE(PartDesign::FeatureAddSub, PartDesign::Feature)
 
 FeatureAddSub::FeatureAddSub()
-  :  addSubType(Additive)
 {
     ADD_PROPERTY(AddSubShape,(TopoDS_Shape()));
     ADD_PROPERTY_TYPE(Refine,(0),"Part Design",(App::PropertyType)(App::Prop_None),"Refine shape (clean up redundant edges) after adding/subtracting");

src/Mod/PartDesign/App/FeatureAddSub.h

@@ -52,7 +52,7 @@ public:
     App::PropertyBool Refine;
 
 protected:
-    Type addSubType;
+    Type addSubType{Additive};
 
     TopoDS_Shape refineShapeIfActive(const TopoDS_Shape&) const;
 };

src/Mod/PartDesign/App/FeaturePrimitive.cpp

@@ -61,7 +61,6 @@ const App::PropertyQuantityConstraint::Constraints quantityRangeZero = { 0.0, FL
 PROPERTY_SOURCE_WITH_EXTENSIONS(PartDesign::FeaturePrimitive, PartDesign::FeatureAddSub)
 
 FeaturePrimitive::FeaturePrimitive()
-  :  primitiveType(Box)
 {
     Part::AttachExtension::initExtension(this);
 }

src/Mod/PartDesign/Gui/SketchWorkflow.cpp

@@ -634,7 +634,6 @@ private:
 
 SketchWorkflow::SketchWorkflow(Gui::Document* document)
     : guidocument(document)
-    , activeBody(nullptr)
 {
     appdocument = guidocument->getDocument();
 }

src/Mod/PartDesign/Gui/SketchWorkflow.h

@@ -57,7 +57,7 @@ private:
 private:
     Gui::Document* guidocument;
     App::Document* appdocument;
-    PartDesign::Body* activeBody;
+    PartDesign::Body* activeBody{nullptr};
 };
 
 } // namespace PartDesignGui

src/Mod/PartDesign/Gui/ViewProvider.cpp

@@ -50,7 +50,6 @@ using namespace PartDesignGui;
 PROPERTY_SOURCE_WITH_EXTENSIONS(PartDesignGui::ViewProvider, PartGui::ViewProviderPart)
 
 ViewProvider::ViewProvider()
-: oldTip(nullptr), isSetTipIcon(false)
 {
     PartGui::ViewProviderAttachExtension::initExtension(this);
 }

src/Mod/PartDesign/Gui/ViewProvider.h

@@ -86,8 +86,8 @@ protected:
     virtual TaskDlgFeatureParameters *getEditDialog();
 
     std::string oldWb;
-    App::DocumentObject* oldTip;
-    bool isSetTipIcon;
+    App::DocumentObject* oldTip{nullptr};
+    bool isSetTipIcon{false};
 };
 
 using ViewProviderPython = Gui::ViewProviderPythonFeatureT<ViewProvider>;

src/Mod/PartDesign/Gui/ViewProviderTransformed.h

@@ -35,10 +35,7 @@ class PartDesignGuiExport ViewProviderTransformed : public ViewProvider
     PROPERTY_HEADER_WITH_OVERRIDE(PartDesignGui::ViewProviderTransformed);
 
 public:
-    /// constructor
-    ViewProviderTransformed()
-        : pcRejectedRoot(nullptr) {}
-    /// destructor
+    ViewProviderTransformed() = default;
     ~ViewProviderTransformed() override  = default;
 
     // The feature name of the subclass
@@ -63,7 +60,7 @@ protected:
     bool checkDlgOpen(TaskDlgTransformedParameters* transformedDlg);
 
     // node for the representation of rejected repetitions
-    SoGroup           * pcRejectedRoot;
+    SoGroup           * pcRejectedRoot{nullptr};
 
     QString diagMessage;