On 25/04/2021 7:23 p.m., Cai Li wrote:
Hello All,I'm developing a package with C code. My question may be naive: I have several internal R functions that need to be called by C, but I cannot get it to work or find a solution. It can work if I export those internal functions in namespace, but it fails if I just want to keep them as internal functions without exporting them. I guess I need some flags to indicate the "internal" R internal functions? Could you please share your thoughts on how to fix this? Much appreciated in advance! // set up call to R function "R_function" SEXP func_R; PROTECT(func_R=lang2(install("R_function"), func_data));
It all depends on the environment where you evaluate that expression, just as it would if it was R code. You can't see internal package functions from the global environment, you need to evaluate them in the package namespace environment.
Duncan Murdoch ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
