(Moderately wrong list: r-package-devel for packaging questions, rcpp-devel for Rcpp questions)
On 18 December 2017 at 13:24, Stravs, Michael wrote: | I am trying to make a package B that extends another package A. Package A uses Rcpp, and I want to extend a class X used there. It doesn't really matter (for the issue at hand) if you use Rcpp or not -- R only offers us C interfaces so C interfaces are all we got. And they don't know classes. I worked through that in some of my packages. See eg RcppXts which "extends" in your sense xts by allowing C++ level access from another package. The one key aspect is that _everything you want to call from B must be explicitly exported by A_. See Writing R Extensions for details. If you could rewrite your class A to be header-only then you could just include it via LinkingTo. But that is a different story. In short, "No Free Lunch" and no automagic mechanisms. Dirk -- http://dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
