[Rcpp-devel] Fwd: Re: Making objects in the C++ "side" persistent

Martin Jakt mjakt at z2.keio.jp
Wed Jun 18 02:09:23 CEST 2014

On Tuesday 17 Jun 2014 19:34:59 Krzysztof Sakrejda wrote:
> On Tue, Jun 17, 2014 at 7:30 PM, Martin Jakt <mjakt at z2.keio.jp> 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.

Martin Jakt
Department of Systems Medicine
Mitsunada Sakaguchi Laboratory
Keio University School of Medicine

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