Documenting implicitly generated C++ function

[Geoff Alexander]

I sometimes use an empty group to document use of implicitly generated C++ functions:

      /**
       * @name Assignment
       *
       * The implicitly generated copy assignment operator is used by design.
       */
      //@{
      // End Assignment
      //@}

However the empty group doesn't show in my documentation.  Is there a way to have empty groups in Doxygen documentation?  Or is there a better way to document implicitly generated C++ functions?

Thanks,
Geoff Alexander