Dear all,
It seems I can reference lazy-loaded data from an unloaded, unattached package
from R, but not using the equivalent Rcpp as described in the quickref
document. I checked out:
http://dirk.eddelbuettel.com/code/rcpp/html/Environment_8h_source.html and even
the scant references to envir
The XPtr is effectively a shared_ptr with special R friendly behavior.
Using XPtr is as simple as just passing a pointer to your dynamically
allocated C++ object to the XPtr constructor, see
https://stackoverflow.com/questions/45947880/pass-a-c-object-as-a-pointer-an-reuse-in-another-function-in-rc
