On Sat, 24 May 2008, Laurent Gautier wrote:
Dear list,I have been using "findVar" (defined in src/main/envir.c) happily and would like to use "findFun". However I have trouble when the name searched cannot be found: while "findVar" returns R_UnboundValue, "findFun" does not (the 4 last lines of "findFun" are copied below). error(_("could not find function \"%s\""), CHAR(PRINTNAME(symbol))); /* NOT REACHED */ return R_UnboundValue; } I assume that the comment "/* NOT REACHED */ means that R_UnboundValue is not returned... and my question is: what is returned then ? (I am a little lost in the nested calls within "error").
There is no returned -- the call to 'error' will result in a non-local exit (executed via longjmp). The return statement is there to keep the C compiler happy since it doesn't know about this property of error and so would issue a warning, ant the /* NOT REACHED */ comment here (and elswehere) remindes us of this. Best, luke
Thanks, Laurent ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
-- Luke Tierney Chair, Statistics and Actuarial Science Ralph E. Wareham Professor of Mathematical Sciences University of Iowa Phone: 319-335-3386 Department of Statistics and Fax: 319-335-3017 Actuarial Science 241 Schaeffer Hall email: [EMAIL PROTECTED] Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
