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=0.6 required=5.0 tests=BAYES_20,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 10db24,37e6dbf5e31f6da0 X-Google-Attributes: gid10db24,public X-Google-Thread: ff6c8,37e6dbf5e31f6da0 X-Google-Attributes: gidff6c8,public X-Google-Thread: 103376,37e6dbf5e31f6da0 X-Google-Attributes: gid103376,public X-Google-Thread: f43e6,37e6dbf5e31f6da0 X-Google-Attributes: gidf43e6,public X-Google-Thread: 1108a1,37e6dbf5e31f6da0 X-Google-Attributes: gid1108a1,public From: Dave Sparks Subject: Re: Software Engineering News Brief Date: 1996/11/18 Message-ID: #1/1 X-Deja-AN: 197242928 x-lines: 25 x-nntp-posting-host: sisyphus.demon.co.uk references: <55nqea$32a@news2.delphi.com> <3280BAFA.1B2F@email.mot.com> <563tle$cu7$1@shade.twinsun.com> <56lvss$r82@mulga.cs.mu.OZ.AU> organization: to be supplied x-attribution: DaveS newsgroups: comp.lang.ada,comp.sw.components,comp.object,comp.software-eng,comp.edu Date: 1996-11-18T00:00:00+00:00 List-Id: >>>>> "RD" == Robert Dewar writes: RD> ... RD> Also, dates that go outside the Ada range are tricky for another RD> reason, since they need geopolitical normalization in any case. The RD> question of whether a year is a leap year or not is not a scientific RD> or astronomical one, it is a political one, since it depends on the RD> laws of the country involved. All countries agree for the Ada range RD> of dates, but when you wander outside this range, countries will RD> disagree unless they change their laws. Again, deciding whether you RD> want the date according to the current law, or according to some RD> other scheme, is surely something a program must decide for itself. According to # Catholic Romania switched from the Julian to the Gregorian calendar on # on 1919 Mar 18. Greek Orthodox Romania switched on 1920 Mar 18. (sic). These dates seem to be within the ADA range. The same source gives other countries (including Russia) which did not change until after 1900. -- Dave.Sparks@sisyphus.demon.co.uk (Staffordshire, England)