search for: r_allocateptr

Had been looking into Luke Tierney's R_AllocatePtr() and was left with a question about exactly when does R reclaim heap memory. Implication of 'simpleref.nw' is that one can allocate C data on the R heap, and as long as pointer object is alive, the data and pointer will remain valid. But it calls allocString() which is implemented using R_...

Is it possible for S4 to (continue) dispatch to a class created during dispatching? The code below doesn't work; is this not possible or have I ommitted something? Concept was to create a SEXP with R_AllocatePtr, give it a class attribute, and continue dispatch. Example code below omits multiple parameters that can be different types. Essentially, any parameter would be converted to an internal type "class" and the final dispatch would be passing EXTPTRSXP objects. library(methods) setGeneric(...

...ss("ProbesetGE", representation("PDNNObject")) ---- static void ProbesetGE_finalizer(SEXP vntData) { Rprintf("In ProbesetGE_finalizer()\n"); /* Deallocate memory of structure fields */ } static SEXP AllocateProbesetGEPtr(unsigned count) { return R_AllocatePtr(count, sizeof(ProbesetGE_t), ProbesetGETypeTag)); } SEXP R_PDNN_newProbesetGE(unsigned count) { SEXP vntObj; SEXP vntClassDef; SEXP vntData; SEXP vntAttr; SEXP vntHandle; unsigned n = 0; PROTECT(vntClassDef = MAKE_CLASS...