0031004: Coding - eliminate warnings issued by gcc 9.1.0

Fixed -Wrestrict warning within OSD::SetSignal().

Fixed -Wdeprecated-copy warning by adding missing counterpart
in pair copy constructor / assignment operator or by removing trivial constructor.

AdvApp2Var_Node, AdvApp2Var_Patch are now declared as Handle.
AdvApp2Var_Iso is now passed by Handle.

Disabled operator= for TDF_Transaction and TDF_IDFilter.

Standard.cxx - fixed GCC version mischeck causing building failure with experimental GCC versions.

TopOpeBRepDS_EXPORT.cxx - fixed -Wmaybe-uninitialized warnings.

src/Interface/Interface_Graph.cxx

@@ -102,6 +102,26 @@ Interface_Graph::Interface_Graph
   theflags.Initialize(agraph.BitMap(),Standard_True);
 }
 
+Interface_Graph& Interface_Graph::operator= (const Interface_Graph& theOther)
+{
+  themodel = theOther.Model();
+  thepresents = theOther.thepresents;
+  thesharings = theOther.SharingTable();
+  thestats.Nullify();
+
+  const Standard_Integer nb = theOther.NbStatuses();
+  if (nb != 0)
+  {
+    thestats = new TColStd_HArray1OfInteger(1, nb);
+    for (Standard_Integer i = 1; i <= nb; ++i)
+    {
+      thestats->SetValue (i, theOther.Status(i));
+    }
+    theflags.Initialize (theOther.BitMap(), Standard_True);
+  }
+  return *this;
+}
+
 void Interface_Graph::InitStats()
 {
   thestats = new TColStd_HArray1OfInteger(1,themodel->NbEntities()) , 

src/Interface/Interface_Graph.hxx

@@ -87,6 +87,9 @@ public:
   //! Remark that status are copied from <agraph>, but the other
   //! lists (sharing/shared) are copied only if <copied> = True
   Standard_EXPORT Interface_Graph(const Interface_Graph& agraph, const Standard_Boolean copied = Standard_False);
+
+  //! Assignment
+  Standard_EXPORT Interface_Graph& operator= (const Interface_Graph& theOther);
   
   //! Erases data, making graph ready to rebegin from void
   //! (also resets Shared lists redefinitions)

src/Interface/Interface_STAT.hxx

@@ -97,7 +97,14 @@ public:
   
   //! used when starting
   Standard_EXPORT Interface_STAT(const Interface_STAT& other);
-  
+
+  //! Assignment
+  Interface_STAT& operator= (const Interface_STAT& theOther)
+  {
+    theOther.Internals (thetitle, thetotal, thephnam, thephw, thephdeb,thephfin, thestw);
+    return *this;
+  }
+
   //! Returns fields in once, without copying them, used for copy
   //! when starting
   Standard_EXPORT void Internals (Handle(TCollection_HAsciiString)& tit, Standard_Real& total, Handle(TColStd_HSequenceOfAsciiString)& phn, Handle(TColStd_HSequenceOfReal)& phw, Handle(TColStd_HSequenceOfInteger)& phdeb, Handle(TColStd_HSequenceOfInteger)& phfin, Handle(TColStd_HSequenceOfReal)& stw) const;