another Zcal bug isolated

To: CALC-TI@LISTS.PPP.TI.COM
Subject: another Zcal bug isolated
From: David Endahl <endahld@SCNC.WMSTON.K12.MI.US>
Date: Sun, 21 Jun 1998 15:27:22 -0400
Reply-To: David Endahl <endahld@SCNC.WMSTON.K12.MI.US>

Today I found another bug in Zcal for Ashell :)  I think that it is what's
causing the inconsistency in dates, even though the bug is "fixed".  If you
have the program, try this:
Go to Feb. 1998
        Hit the down arrow THREE times to go back to Feb. 1995
        Hit the up arrow once to go to 1996 (a leap year)
        Where's February 29'th???
This problem is weirder than just the first simple algorithm problem,
because if you just go back to Feb. 1996 without going back before it, it
displays 29 days, but if you go past it, it leaves out the extra day!  This
works for any leap year.  I'd like to see if the author of the game knows
about this, and if anyone else has been able to confirm this bug.  Thanks!


-David Endahl
endahld@scnc.wmston.k12.mi.us

"Without the band, it's just a GAME!"
"The first half is pre-game for  the halftime show"
"The second half is a time to prepare for the post-game show"
"Come for the band, stay for the football"

Follow-Ups:

Re: another Zcal bug isolated

From: Bryan Rabeler <brabeler@ISD.INGHAM.K12.MI.US>