🚀 go-pugleaf

Jay Maynard (jmaynard@oac.hsc.uth.tmc.edu) wrote:
: In article <1992Dec30.174457.29401@nntpserver.chevron.com> hdnea@usho92.hou281.chevron.com (David Neal) writes:
: >I was mucking around with getdate, and noticed
: >it won't take dates > 1999. Anyone know why? I hate to
: >just patch it and blow its leap year handling all to hell.

: Actually, if it's using a year mod 4 leap year algorithm, it'll do fine for
: 2000 - as 2000 is a leap year. 2100, on the other hand, may be a problem...

Yes.  Even though year 2000 is divisible by 100 (so it wouldn't ordinarily
be a leap year), it's divisible by 400, so it is a leap year after all.
So, 2000 can be treated just like 1992, 1996, and 2004.

The source code (370 assembler) for the Snobat 1.9 implementation of
Snobol4 has a note to the effect "This code will work until January 1,
2100.  If you're still using it then, the joke's on you".

--
Doug Sewell, Tech Support, Computer Center, Youngstown State University
doug@cc.ysu.edu	   doug@ysub.bitnet	<internet>!cc.ysu.edu!doug

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