Re: xkcd: Day Counter

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From	Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups	rec.arts.sf.written, rec.arts.comics.strips, comp.lang.fortran, comp.lang.c++
Subject	Re: xkcd: Day Counter
Date	Sun, 05 Apr 2026 14:13:50 -0700
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Chris Ahlstrom <OFeem1987@teleworm.us> writes:
> Lynn McGuire wrote this screed in ALL-CAPS:
>
>> xkcd: Day Counter
>>     https://xkcd.com/3228/
>>
>> Yes, floating point errors are the bane of my life !  Not so much now 
>> with double precision but the single precision days were nightmares.
>
> Well these days we have long double.

C has had long double as a standard type since the original 1989
ANSI C standard.  (K&R1, 1978, didn't have long double.)

But wider floating-point types don't eliminate rounding errors.

[...]

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
void Void(void) { Void(); } /* The recursive call of the void */

Thread

xkcd: Day Counter Lynn McGuire <lynnmcguire5@gmail.com> - 2026-04-03 22:40 -0500
  Re: xkcd: Day Counter Your Name <YourName@YourISP.com> - 2026-04-04 16:46 +1300
    Re: xkcd: Day Counter Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-04 07:40 +0000
      Re: xkcd: Day Counter Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-04-04 16:19 +0000
        Re: xkcd: Day Counter Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-04 22:09 +0000
          Re: xkcd: Day Counter Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-04-05 12:50 +0000
            Re: xkcd: Day Counter Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-05 20:40 +0000
              Re: xkcd: Day Counter Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-04-05 23:06 +0000
                Re: xkcd: Day Counter Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-06 01:36 +0000
            Re: xkcd: Day Counter Louis Krupp <lkrupp@invalid.pssw.com.invalid> - 2026-04-06 16:03 -0600
          Re: xkcd: Day Counter Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-04-08 18:20 +0000
          Re: xkcd: Day Counter Cóilín Nioclásín Glostéir <thanks-to@Taf.com> - 2026-08-21 18:45 +0000
        Re: xkcd: Day Counter Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.invalid> - 2026-08-22 04:14 +0800
    Re: xkcd: Day Counter Paul S Person <psperson@old.netcom.invalid> - 2026-04-04 09:16 -0700
    Re: xkcd: Day Counter Stuart Redmann <DerTopper@web.de> - 2026-04-06 16:10 +0200
      Re: xkcd: Day Counter Paul S Person <psperson@old.netcom.invalid> - 2026-04-06 08:33 -0700
  Re: xkcd: Day Counter Tony Nance <tnusenet17@gmail.com> - 2026-04-04 10:40 -0400
    Re: xkcd: Day Counter Mark Jackson <mjackson@alumni.caltech.edu> - 2026-04-04 11:01 -0400
  Re: xkcd: Day Counter Jay Morris <morrisj@epsilon3.me> - 2026-04-04 11:44 -0500
  Re: xkcd: Day Counter Chris Ahlstrom <OFeem1987@teleworm.us> - 2026-04-05 10:22 -0400
    Re: xkcd: Day Counter Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-04-05 14:13 -0700
      Re: xkcd: Day Counter Thomas Koenig <tkoenig@netcologne.de> - 2026-04-06 05:25 +0000
        Re: xkcd: Day Counter Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-04-06 00:43 -0700
          Re: xkcd: Day Counter Thomas Koenig <tkoenig@netcologne.de> - 2026-04-06 20:14 +0000
            Re: xkcd: Day Counter Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2026-04-06 14:30 -0700
        Re: xkcd: Day Counter Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-04-06 15:54 +0000
          Re: xkcd: Day Counter Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-04-06 20:40 +0000
            Re: xkcd: Day Counter "J-P. Rosen" <rosen@adalog.fr> - 2026-04-07 07:48 +0200
  Re: xkcd: Day Counter candycanearter07 <candycanearter07@candycanearter07.nomail.afraid> - 2026-04-06 14:40 +0000

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