Re: src/main/dotcode.c:do_dotCode() The value, if there is one, of a function called by .C or .Fortran is not captured, so one needs a wrapper. To avoid that, the user would have to declare that there is a value, specify its type, and supply an R variable to hold the value. Presumably, all of these could be combined in a new "VALUE=var" parameter. Then do_dotCode could arrange the correct type of C variable to receive the value (for every one of the 66 possible instances of the call), and then transfer that value to 'var'. It seems doable with a strong enough macro, if a bit complicated. Or one could say VALUE=<type> and get the value as a new, (n+1)_th element of the current list value.
Of course, existing code naming an argument with "VALUE" would break, so a completely new interface, perhaps .C.function(), .Fortran.function(), would be required to avoid that. Has this facility been ruled out? ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
