Method AddDeleteEventObserver

Modules/Core/include/mitkWeakPointer.h:223–236

  private:
    void AddDeleteEventObserver()
    {
      if (nullptr != m_RawPointer)
      {
        auto command = itk::SimpleMemberCommand<WeakPointer>::New();
        command->SetCallbackFunction(this, &WeakPointer::OnDeleteEvent);

        using TWithoutConst = typename std::remove_const_t<T>;
        //cast the pointer to non const before adding the observer. This is done to ensure that
        //weak pointer also supports const pointers.
        auto nonConstPointer = const_cast<TWithoutConst*>(m_RawPointer);
        m_ObserverTag = nonConstPointer->AddObserver(itk::DeleteEvent(), command);
      }
    }

    void RemoveDeleteEventObserver()
    {