From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.1 required=5.0 tests=BAYES_05,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,cfd23c10fd537a80 X-Google-Attributes: gid103376,public From: Geoff Bull Subject: Re: Ada Calendar oddity Date: 2000/05/19 Message-ID: <3924B35E.DC0C9CDF@acenet.com.au>#1/1 X-Deja-AN: 625254548 Content-Transfer-Encoding: 7bit References: <39176D85.603D7AEC@research.canon.com.au> <39178DEA.FD2C20FA@research.canon.com.au> <8f92o1$6v$1@nnrp1.deja.com> <3918BB77.693C70D6@research.canon.com.au> <8fahfv$mgt$1@nnrp1.deja.com> <39230A82.CFA6E18D@earthlink.net> X-Accept-Language: en Content-Type: text/plain; charset=us-ascii X-Complaints-To: abuse@telstra.net X-Trace: nsw.nnrp.telstra.net 958706727 203.35.118.1 (Fri, 19 May 2000 13:25:27 EST) Organization: Customer of Telstra Big Pond Direct MIME-Version: 1.0 NNTP-Posting-Date: Fri, 19 May 2000 13:25:27 EST Newsgroups: comp.lang.ada Date: 2000-05-19T00:00:00+00:00 List-Id: "Robert I. Eachus" wrote: > > Robert A Duff wrote: > > > The reason for the range 1901..2099 is that leap year calculations are > > simpler (and more efficient) in this range -- in this range, all years > > divisible by 4 are leap years (including 2000). 1900 and 2100 are not > > leap years. > > True, but that was the reason it was that way in Ada 83, when > avoiding the Y2K bug was a big deal. It was that kind of narrow (focussed on one problem) thinking that led to the y2k bug!