Dear list, On a follow up from my previous email, I am now trying to allocate vectors of length larger than 32-bit in C.
>From the R internals documentation, I read that: "The sxpinfo header is defined as a 32-bit C structure..." and "A SEXPREC is a C structure containing the 32-bit header..." The question is: does the INTSXP allow vectors larger than 32-bit? A test example: //### int *p_temp; SEXP root = PROTECT(allocVector(VECSXP, 5)); long long int verylargeinteger; // something to compute verylargeinteger, > 32-bit SEXP temp = SET_VECTOR_ELT(root, 0, allocVector(INTSXP, verylargeinteger)); p_temp = INTEGER(temp); //### "temp" should be a vector of length > 32-bit, and "p_temp" should be the pointer to that vector. If declaring: long long int *p_temp; (but the compiler throws a warning with an incompatible pointer type, because pointers should be integers of course). I've looked at all SEXPTYPEs in the R internals, and the only one specific to integer vectors is INTSXP. Can this be used for vectors of length larger than 32-bit? Thank you again, in advance, Adrian -- Adrian Dusa University of Bucharest Romanian Social Data Archive 1, Schitu Magureanu Bd. 050025 Bucharest sector 5 Romania Tel.:+40 21 3126618 \ +40 21 3120210 / int.101 Fax: +40 21 3158391 [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel