search for: r_protectwithindex

What is the best way to grow an R return object in writing a C function using the Rdefines.h macros. In my application, the final size of the return object is not known during construction. My understanding is that each time I grow an R object I have to use PROTECT() again, probably before UNPROTECTing the smaller version. However, due to the stack character of the PROTECT mechanism, UNPROTECT

...hcdr ld: 0711-317 ERROR: Undefined symbol: .R_strtod ld: 0711-317 ERROR: Undefined symbol: .Rf_isBlankString ld: 0711-317 ERROR: Undefined symbol: R_NaReal ld: 0711-317 ERROR: Undefined symbol: .UNIMPLEMENTED ld: 0711-317 ERROR: Undefined symbol: .Rf_duplicate ld: 0711-317 ERROR: Undefined symbol: .R_ProtectWithIndex ld: 0711-317 ERROR: Undefined symbol: R_NamesSymbol ld: 0711-317 ERROR: Undefined symbol: .Rf_getAttrib ld: 0711-317 ERROR: Undefined symbol: .Rf_errorcall ld: 0711-317 ERROR: Undefined symbol: .Rf_protect ld: 0711-317 ERROR: Undefined symbol: .Rf_str2type ld: 0711-317 ERROR: Undefined symbol: .Rf_...