Hello,
This is a question that probably reveals my lack of understanding.
In a C function (call it cfunc), i created a SEXP, called S, and then
called R_PreserveObject on S.
I returned the SEXP to the calling R function (call it rfunc). Note, I
didn't call
R_ReleaseObject on S.
v <- .Call("cfunc")
So, are the following statements correct
1. S is 'doubly' protected from the GC by being associated both with 'v'
and because it has been added to the precious list (via a call to
R_PreserveObject without ReleaseObject being called)
2. I have another C function called cfunc2. In cfunc2, I call
R_ReleaseObject on S. S , however, is still protected from the GC, because
it is associated with 'v'
Is (1) and (2) correct?
I have not used R_protect/unprotect, because if I return from cfunc without
the equivalent number of unprotects, i get 'unbalanced stack' warnings. I'd
rather not have to worry about that because i intend to balance it later.
Regards
Saptarshi
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