I think Tomas's post is clear and quite helpful, I just disagree with the conclusions. IMHO C++ (through Rcpp) is still the best way to interface with R from compiled code for the majority of users.
Tomas's comments were mainly around the fact that things can go wrong if you start mixing R longjmp's with C++ destructors. This is why Rcpp encourages things like: - Use Rcpp::stop() in preference to Rf_error(); - Use Rcpp::eval() in preference to Rf_eval(); And so on. I think it's unfortunate that Tomas's conclusion is to use C rather than C++, as writing correct C programs is, in my opinion and experience, substantially more difficult than writing correct C++ programs -- especially when using modern C++ programming idioms. I also strongly believe that users have better things to do than manually manage protection of R objects, especially since Rcpp can manage that for you. Things are still not perfect, as Tomas pointed to a very real bug with the use of RNGScope, but it's still IMHO a substantial improvement over what needs to happen in equivalent C code. Ultimately, I think the lesson is: don't call R's C API directly from C++ code unless you absolutely know what you're doing. Best, Kevin On Thu, Apr 4, 2019 at 10:32 AM Fernando H Toledo <fernandohtol...@gmail.com> wrote: > > Dear All, > > Recently Tomas Kalibera has post on the blog of R developers about the > use o C++ in R packages. > > The post can be seem at the following link: > https://developer.r-project.org/Blog/public/2019/03/28/use-of-c---in-packages/ > > I would like to know your thoughts over that. In summary, he recommend > to avoid C++ in R packages but for me his points are not too clear. > Maybe you can help me to clarify them. > > Cheers, > FH > _______________________________________________ > 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 _______________________________________________ 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
