-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, has anybody experience with the registration mechanism for C/C++ functions for R? I have a C function of the form: void OAWrapper(double* Rpre, int* m, int* n, int *mod, double *res) which I want to register. However, when I write void R_init_GOSim(DllInfo *info){ R_CMethodDef cMethods[] = {{"OAWrapper", &OAWrapper, 5, {REALSXP,INTSXP, INTSXP, INTSXP, REALSXP}}, {NULL, NULL, 0}}; R_registerRoutines(info, cMethods, NULL, NULL, NULL); } then R crashes. Has anybody an idea? Thank you very much Holger -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.2 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFdoy75ZMgwjLrZIMRAu4SAJ9uyUFdMu5Ouk2Zie+696yRXmjyQACgqUcp yodS/0OaMiF7CQnxM0EWLUE= =YK6U -----END PGP SIGNATURE-----

Hi, Using .Call technique this is done as follows and I would strongly recommend to use .Call to prevent crashing on wrong data types: SEXP OAWrapper (SEXP _Rpre, SEXP _m, SEXP _n, SEXP _mod, SEXP _res) { double * Rpre; int * m; Rpre = REAL(_Rpre); m = INTEGER(_m); etc etc etc /* you MUST return at least this or a new variable, this function MUST NOT be void as R expects a return from every function */ return R_NilValue; } Then you can register it as follows: static R_CallMethodDef cMethods[] = { {"OAWrapper", (DL_FUNC) &OAWrapper, 5}, {NULL, NULL, 0} } void R_init_GOSim(DllInfo *info){ /* you also had order of parameter here */ R_registerRoutines(info, NULL, cMethods, NULL, NULL); } This way I do my functions and they work perfectly fine :) Best Oleg Holger Fr?hlich wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi all, > > has anybody experience with the registration mechanism for C/C++ > functions for R? > > I have a C function of the form: > > void OAWrapper(double* Rpre, int* m, int* n, int *mod, double *res) > > which I want to register. > However, when I write > > void R_init_GOSim(DllInfo *info){ > R_CMethodDef cMethods[] = {{"OAWrapper", &OAWrapper, 5, > {REALSXP,INTSXP, INTSXP, INTSXP, REALSXP}}, {NULL, NULL, 0}}; > R_registerRoutines(info, cMethods, NULL, NULL, NULL); > } > > then R crashes. Has anybody an idea? > > Thank you very much > > Holger > > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.2.2 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFFdoy75ZMgwjLrZIMRAu4SAJ9uyUFdMu5Ouk2Zie+696yRXmjyQACgqUcp > yodS/0OaMiF7CQnxM0EWLUE= > =YK6U > -----END PGP SIGNATURE----- > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor -- Dr Oleg Sklyar * EBI/EMBL, Cambridge CB10 1SD, England * +44-1223-494466