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Re: calendar-day-of-week reports negative date

From: Glenn Morris
Subject: Re: calendar-day-of-week reports negative date
Date: Mon, 15 Sep 2003 10:57:12 +0100
User-agent: Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/)

Mark A. Hershberger wrote:

> calendar-day-of-week reports negative DOW for days B.C.
> (calendar-day-of-week '(1 1 -1)) ---> -1

AFAIK, this has always been the case, and such functions cannot be
relied upon to give meaningful answers for dates before the start of
the current era. For example, generate-calendar will refuse to do
anything for such dates. Maybe this function should too.

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