Thank you for the prompt and helpful replies. We're embarrassed to
report that the problem was far more mundane: a lonely uninitialized
integer pointer.
On the bright side, we now have a far deeper understanding of SEXP i/o.
Rest assured, the C-coding team (that would be me) has be duly spanked
Apologies for any obtuseness in the following. We have been working
on Version 2.0 of the randomSurvivalForest CRAN package and we're
encountering a perplexing 'memory not mapped' segfault that we believe
is "influenced" by GC.
We essentially have two R functions, rsf.default(..), and
predict.rsf
