search for: r_trywrap

...reason, though, you can use this. I'll talk to Luke about whether we want to generalize this, it would be easy to have this support the full space of metadata for wrappers and be a general purpose wrapper-maker, but that isn't what it is right now. At the C-level, it looks like we do make R_tryWrap available (it appears in Rinternals.h, and not within a USE_RINTERNALS section),so you can call that from your own C(++) code. This creates a wrapper that has no metadata on it (or rather it has metadata but the metadata indicates that no special info is known about the vector). > > > I...

Hello, I?m experimenting with ALTREP and was wondering if there is a preferred way to create an ALTREP wrapper vector without using .Internal(wrap_meta(?)), which R CMD check doesn?t like since it uses an .Internal() function. I was trying to create a factor that used an ALTREP integer, but attempting to set the class and levels attributes always ended up duplicating and materializing the