> I am trying to use a custom S4 object in my C code and I cannot get the > access to its slots working. > > > > The following is a toy example, but even this crashes. > > > > In R I have: > > > > setClass("pd", representation(data="numeric")) > > x <- new("pd", data=1:5) > > > > test <- function(pd.obj) { > > res <- .C("TestFun", pd.obj)
.Call("TestFun", pd.obj) should work. Torsten > > res} > > > > test(x) > > > > (Of couse I load the DLL as well.) > > > > The corresponding C file has: > > > > SEXP TestFun(SEXP pd_obj) > > { > > SEXP t=R_NilValue; > > PROTECT(t = GET_SLOT(pd_obj, install("data"))); > > UNPROTECT(1); > > return(t); > > } > > > > > > What I hope to get as a result is the (1:5) vector. > > In the long term, the vector will be a multi-dimensional array and I > will want to do calculations using its contents in the C program. > > > > Thanks for any help, > > > > Aniko > > > Huntsman Cancer Institute wishes to promote open communication while > protecting confidential and/or privileged information. If you have received > this message in error, please inform the sender and delete all copies. > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html