Oops, I guess you already figured this out... Kevin
--- Kevin Toppenberg <[EMAIL PROTECTED]> wrote: > Greg, > > Recursive functions always make my brain hurt, but I > don't think this shows what you are talking about. > The reason that the $$FACT^ZZGBAD(5)=1 is because > your > function returns VAL, which got set to 1 after the > recursive calls down to MYN=0. I don't think there > is > anything funny like passed parameters being changed. > > My understanding is that variables are given a NEW > when the function starts. > > Kevin > > > > --- Greg Woodhouse <[EMAIL PROTECTED]> wrote: > > > Sure. > > > > > > >ZL ZZGBAD ZP > > FACT(MYN) ; ; 3/8/05 12:14pm > > Q:MYN'>0 1 > > S VAL=$$FACT(MYN-1) > > S MYN=0 ;MYN changed! > > Q VAL > > > > >W $$FACT^ZZGBAD(5) > > 1 > > > > > > > > > --- Greg Kreis <[EMAIL PROTECTED]> wrote: > > > > > I am not following your reasoning Greg. Can you > > provide an example? > > > > > > Greg Woodhouse wrote: > > > > > > >Another thing to watch out for is recursive > > calls. With the scoping > > > >works in MUMPS it seems to me that the only > safe > > option is to copy > > > >parameter values into NEW variables (so that > you > > have a separate > > > copy > > > >in each stack frame). Otherwise, things might > not > > work as you > > > expect. > > > > > > > >--- Greg Woodhouse <[EMAIL PROTECTED]> > wrote: > > > > > > > > > > > > > > > >>In fact, I recall creating a special lookup > > routine that called > > > ^DIC > > > >>-- > > > >>except that I neglected to include the "I" > flag > > for ignore special > > > >>lookup routine. Needless to say, the result > was > > "interesting". > > > >> > > > >>--- Greg Kreis <[EMAIL PROTECTED]> > > wrote: > > > >> > > > >> > > > >> > > > >>>It can happen with repeatedly performing a DO > > command to any > > > >>>location. > > > >>>Anything that is putting new entries on the > > stack frame without > > > >>>eventually removing them. The stack on DSM > or > > Cache can probably > > > >>>handle > > > >>>300+ entries, so it never overflows with > > legitimate logic. ;-) > > > >>> > > > >>>Greg Woodhouse wrote: > > > >>> > > > >>> > > > >>> > > > >>>>It means there was an intepreter stack > > overflow. :-) > > > >>>> > > > >>>>Actually, I think you got into an infinite > > loop making repeated > > > >>>> > > > >>>> > > > >>>routine > > > >>> > > > >>> > > > >>>>calls (each of which requires the allocation > > of a new stack > > > frame, > > > >>>>which contains such details as NEW variables > > and the return > > > >>>> > > > >>>> > > > >>>address). > > > >>> > > > >>> > > > >>>>--- "Naik, Chintan (EDS)" > > <[EMAIL PROTECTED]> wrote: > > > >>>> > > > >>>> > > > >>>> > > > >>>> > > > >>>> > > > >>>>>Anyone know what this error means? > > > >>>>> > > > >>>>>%DSM-E-STKOVR, Interpreter stack overflow > > > >>>>> > > > >>>>> > > > >>>>>Thanks, > > > >>>>> > > > >>>>>Chintan Naik > > > >>>>>Health System Design & Development > > > >>>>>* (972)-796-2414 - (Plano - Tue, Wed, Thu) > > > >>>>>* (817)-798-0546 - (Dallas OIFO - Mon, Fri) > > > >>>>>* Fax: (972)-796-6181 > > > >>>>>* mailto:[EMAIL PROTECTED] > > > >>>>> > > > >>>>>To care for him who shall have borne the > > battle and for his > > > widow > > > >>>>> > > > >>>>> > > > >>>and > > > >>> > > > >>> > > > >>>>>his orphan... Abraham Lincoln > > > >>>>> > > > >>>>>Enrollment Systems Group... Where VA Health > > Care Begins! > > > >>>>> > > > >>>>> > > > >>>>> > > > >>>>> > > > > > > >>>>>------------------------------------------------------- > > > >>>>>SF email is sponsored by - The IT Product > > Guide > > > >>>>>Read honest & candid reviews on hundreds of > > IT Products from > > > real > > > >>>>>users. > > > >>>>>Discover which products truly live up to > the > > hype. Start reading > > > >>>>> > > > >>>>> > > > >>>now. > > > >>> > > > >>> > > > > > > >>>>>http://ads.osdn.com/?ad_ide95&alloc_id396&op=click > > > > > > >>>>>_______________________________________________ > > > >>>>>Hardhats-members mailing list > > > >>>>>Hardhats-members@lists.sourceforge.net > > > > > > >>>>>https://lists.sourceforge.net/lists/listinfo/hardhats-members > > > >>>>> > > > >>>>> > > > >>>>> > > > >>>>> > > > >>>>> > > > >>>>===== > > > >>>>A practical man is a man who practices the > > errors of his > > > >>>> > > > >>>> > > > >>>forefathers. --Benjamin Disraeli > > > >>> > > > >>> > > > >>>>==== > > > >>>>Greg Woodhouse > > > >>>>[EMAIL PROTECTED] > > > >>>>[EMAIL PROTECTED] > > > >>>> > > > >>>> > > > >>>> > > > >>>> > > > >>>> > > > > === message truncated === __________________________________ Celebrate Yahoo!'s 10th Birthday! Yahoo! 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