Consider the C (or C++) code called from the .Call interface:
SEXP foo() {
SEXP *p = PROTECT(allocVector(REALSXP, 10));
...
UNPROTECT(1);
return p;
}
Why is there no danger that the allocated memory will be garbage
collected after the UNPROTECT, but before the return of p?
I have used code like this for some time and have never had a
problem, but I'm not sure if/why it is guaranteed to work.
Thanks,
Dominick
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