It seems as if you can you use the ALTREP macro as done in this package: https://github.com/Jiefei-Wang/SharedObject/blob/804b6ac58c63a4bae95343ab43e8b1547b07ee6b/src/C_interface.cpp#L185
and in base R: https://github.com/wch/r-source/blob/54fbdca9d3fc63437d9e697f442d32732fb4f443/src/include/Rinlinedfuns.h#L118 The macro is defined here in Rinternals.h: https://github.com/wch/r-source/blob/abb550c99b3927e5fc03d12f1a8e7593fddc04d2/src/include/Rinternals.h#L325 Den man. 19. okt. 2020 kl. 10.13 skrev Jiefei Wang <szwj...@gmail.com>: > > Hi all, > > I would like to determine if an ALTREP object is from my package, I see > there is a function `ALTREP_CLASS` defined in RInternal.h but its return > value is neither a `R_altrep_class_t` object nor an STRSXP representing a > class name. I do not know how to correctly use it. Any suggestions? > > Thanks, > Jiefei > > [[alternative HTML version deleted]] > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
