On Wed, 2014-06-18 at 09:09 +0900, Martin Jakt wrote: > On Tuesday 17 Jun 2014 19:34:59 Krzysztof Sakrejda wrote: > > On Tue, Jun 17, 2014 at 7:30 PM, Martin Jakt <[email protected]> wrote: > > >> if (identical(data_ptr, new('externalptr'))) return("No data available > > >> to retrieve.") > > > > > > thanks. I think it would have taken me a long time to come up with that > > > from the documentation. It seems curious there's no direct way. > > > > Yes... so it comes with the caveat that I'm not sure if this is > > documented behavior > > and the R developers might decide to change it (?) If this is somehow > > documented or if there is an Rcpp implementation which gets closer to > > documented behavior I would love to know. > > that's a good point. Perhaps a question for the r-dev mailing group. I've not > registered for it, but seems like it might be a good idea.
There is no R-level API for external pointers. You are expected to questions like "is it null?" on the C side. Martyn ----------------------------------------------------------------------- This message and its attachments are strictly confidential. If you are not the intended recipient of this message, please immediately notify the sender and delete it. Since its integrity cannot be guaranteed, its content cannot involve the sender's responsibility. Any misuse, any disclosure or publication of its content, either whole or partial, is prohibited, exception made of formally approved use ----------------------------------------------------------------------- _______________________________________________ Rcpp-devel mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
