On 20 March 2014 at 18:39, F.Tusell wrote: | I have been reading "Exposing C++ functions and classes with Rcpp | modules" and find the idea interesting. However, I read in Section 5 | that objects created | using an external pointer are not persistent from session to session.
Yes. The memory behind that pointer is not guaranteed... | For my purposes, I think I could use S4 objects that make C++ copies of | themselves at creation time, accessible via an external pointer. All | methods would then make use of the C++ copies for speed, and at the end | of the session the S4 copies that live in the R side would be saved. | | I am thinking of writing code which at the start of a session checks all | (S4) objects in the workspace and recreate the C++ copies. Is this the | way to go? Has someone with a similar problem devised an alternative | solution? If anyone can offer some hints (or better yet, point to some | package that I can use for inspiration) I would be grateful. The Stan folks also did something about this in an extension / rework of cxxfunction in inline -- see their package cxxfunplus on CRAN. (Which I haven't used so I can't help with details -- but it help you or point you the right way.) Dirk -- Dirk Eddelbuettel | e...@debian.org | http://dirk.eddelbuettel.com _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
