[Rd] can R_do_slot_assign change slot type
ellis at stat.harvard.edu
Fri Mar 25 11:09:15 CET 2005
I've done this by accident before and it works, but causes trouble down
the line (IIRC saving and loading objects causes problems).
On Mar 21, 2005, at 10:22 PM, Vadim Ogranovich wrote:
> It seems that R_do_slot_assign can change the type of an S4 class slot.
> For example I have a class
> setClass("ostream", representation(id = "integer", keepOpen =
> and inside a C-function I was able to assign a RAW vector to the id
> slot. Is this intentional? I remember reading somewhere that the slot
> type is guaranteed by R. Maybe this doesn't extend to C code?
> Now, in the above example I actually don't know the eventual type of
> 'id' slot, it will be set up in some C code that intializes the class
> instance. What is the right way to define the representation in such a
> [[alternative HTML version deleted]]
> R-devel at stat.math.ethz.ch mailing list
Byron Ellis (ellis at stat.harvard.edu)
"Oook" -- The Librarian
More information about the R-devel