[Path] remove superfluous nullptr checks

src/Mod/Path/App/Voronoi.cpp

@@ -192,7 +192,7 @@ void Voronoi::colorExterior(const Voronoi::diagram_type::edge_type *edge, std::s
   edge->color(colorValue);
   edge->twin()->color(colorValue);
   auto v = edge->vertex1();
-  if (v == nullptr || !edge->is_primary()) {
+  if (!v || !edge->is_primary()) {
     return;
   }
   v->color(colorValue);

src/Mod/Path/App/VoronoiCell.cpp

@@ -55,7 +55,7 @@ VoronoiCell::~VoronoiCell() {
 }
 
 bool VoronoiCell::isBound(void) const {
-  if (ptr != nullptr && dia.isValid() && index != Voronoi::InvalidIndex) {
+  if (ptr && dia.isValid() && index != Voronoi::InvalidIndex) {
     if (&(dia->cells()[index]) == ptr) {
       return true;
     }

src/Mod/Path/App/VoronoiEdge.cpp

@@ -56,7 +56,7 @@ VoronoiEdge::~VoronoiEdge() {
 }
 
 bool VoronoiEdge::isBound(void) const {
-  if (ptr != nullptr && dia.isValid() && index != Voronoi::InvalidIndex) {
+  if (ptr && dia.isValid() && index != Voronoi::InvalidIndex) {
     if (&(dia->edges()[index]) == ptr) {
       return true;
     }

src/Mod/Path/App/VoronoiPyImp.cpp

@@ -188,7 +188,7 @@ static bool callbackWithVertex(Voronoi::diagram_type *dia, PyObject *callback, c
 #endif
       Py_DECREF(arglist);
       Py_DECREF(vx);
-      if (result == nullptr) {
+      if (!result) {
         bail = true;
       } else {
         rc = result == Py_True;

src/Mod/Path/App/VoronoiVertex.cpp

@@ -56,7 +56,7 @@ VoronoiVertex::~VoronoiVertex() {
 }
 
 bool VoronoiVertex::isBound(void) const {
-  if (ptr != nullptr && dia.isValid() && index != Voronoi::InvalidIndex) {
+  if (ptr && dia.isValid() && index != Voronoi::InvalidIndex) {
     if (&(dia->vertices()[index]) == ptr) {
       return true;
     }

src/Mod/Path/Gui/ViewProviderPath.cpp

@@ -588,7 +588,7 @@ private:
           colorindex.push_back(color);
         }
 
-        if (next != nullptr) {
+        if (next) {
             points.push_back(*next);
             markers.push_back(*next);
             colorindex.push_back(color);

src/Mod/Path/PathSimulator/App/PathSim.cpp

@@ -46,9 +46,9 @@ PathSim::PathSim()
 
 PathSim::~PathSim()
 {
-	if (m_stock != nullptr)
+	if (m_stock)
 	    delete m_stock;
-	if (m_tool != nullptr)
+	if (m_tool)
 		delete m_tool;
 }
 
@@ -68,7 +68,7 @@ Base::Placement * PathSim::ApplyCommand(Base::Placement * pos, Command * cmd)
 	Point3D fromPos(*pos);
 	Point3D toPos(*pos);
 	toPos.UpdateCmd(*cmd);
-	if (m_tool != nullptr)
+	if (m_tool)
 	{
 		if (cmd->Name == "G0" || cmd->Name == "G1")
 		{

src/Mod/Path/PathSimulator/App/PathSimPyImp.cpp

@@ -87,7 +87,7 @@ PyObject* PathSimPy::GetResultMesh(PyObject * args)
 	if (!PyArg_ParseTuple(args, ""))
 		return nullptr;
 	cStock *stock = getPathSimPtr()->m_stock;
-	if (stock == nullptr)
+	if (!stock)
 	{
 		PyErr_SetString(PyExc_RuntimeError, "Simulation has stock object");
 		return nullptr;

src/Mod/Path/PathSimulator/App/VolSim.h

@@ -119,7 +119,7 @@ public:
 
 	~Array2D()
 	{
-		if (data != nullptr)
+		if (data)
 			delete[] data;
 	}