Work around bitset VS2017 and ealrlier compiler bug

common/UpdateType.cc

@@ -39,6 +39,12 @@
 *                                                                            *
 \*===========================================================================*/
 
+// Workaround compiler bug in VS2017 and earlier with colliding Qt operators and bitset
+#ifdef _MSC_VER
+  #if (_MSC_VER <= 1916)
+    #define  QT_NO_FLOAT16_OPERATORS
+  #endif
+#endif
 
 #include "TypesInternal.hh"
 #include "UpdateType.hh"

common/UpdateType.hh

@@ -84,7 +84,7 @@ class DLLEXPORT UpdateType {
         return os << type.type_;
     }
 
-  protected:
+  private:
     UpdateTypeSet type_;
 };