Hi Qiang, thanks for the quick reply! "TYPEOF" is runtime right? I want something compile time, i.e. depending on the type of the R object deduce a type to be fed to a templated function.
Best, Vissarion. On Sun, 14 Oct 2018 at 01:24, Qiang Kou <q...@qkou.info> wrote: > > Hi, Vissarion, > > If I understand your problem correctly, you can use "TYPEOF" from R's C API. > > You can find more info on the type of an R object from > https://cran.r-project.org/doc/manuals/r-release/R-ints.html#SEXPTYPEs > > The return value of this macro is an integer: > https://github.com/wch/r-source/blob/master/src/include/Rinternals.h#L94-L126 > > Hadley also gives several examples in http://adv-r.had.co.nz/C-interface.html > > Best, > > KK > > On Sat, Oct 13, 2018 at 2:49 PM Vissarion Fisikopoulos <fisi...@gmail.com> > wrote: >> >> Hi, >> >> I am working on a rcpp project. I have a set of templated C++ classes >> and templated C++ functions that accept any object from that set of >> classes as parameter. I want to expose this functionality to R using >> Rcpp. That is, the R user could create objects (that correspond to the >> set of C++ classes) and then call a function with those objects as >> parameters. >> >> My main issue is that I cannot extract from an R Class any type that >> can be used to parameterise a C++ templated function. >> >> Is there a standard way to do such an exposion within rcpp? >> >> Best, >> Vissarion >> _______________________________________________ >> 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
