in the series 60 doc named "Coding Conventions", it states
"You cannot push R-class objects onto the cleanup stack, hence they must not have a destructor."
yet, in the sample code Utilities.cpp:
they can't both be right.
I'm guessing doc is correct in that R classes do not have constructors/destructors, but rather should implement open/close methods. However, doc is incorrect that these R classes can't be put on cleanup stack.