Bug 10331 - cal program won't accept years after 9999
cal program won't accept years after 9999
Product: Red Hat Linux
Classification: Retired
Component: util-linux (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Crutcher Dunnavant
: FutureFeature
Depends On:
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Reported: 2000-03-24 15:38 EST by Brad Garcia
Modified: 2008-05-01 11:37 EDT (History)
0 users

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Doc Type: Enhancement
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Last Closed: 2000-03-24 15:38:49 EST
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Description Brad Garcia 2000-03-24 15:38:49 EST
Why shouldn't the cal program show years 10000 onward?

> cal 1 10000
cal: illegal year value: use 1-9999
Comment 1 Jeff Johnson 2000-10-09 12:46:51 EDT
Do you really care?
Comment 2 Brad Garcia 2000-10-09 14:29:05 EDT
I cared enough to file a bug,
but I won't lose any sleep if it doesn't get fixed.

It just seems like a completely arbitrary limitation.  I can find no reason
for it.  The mathematics are the same past the year 9999.  The type-imposed
limit for year appears to be (((MAX_LONG - 379) * 400 / 146097) + 1),
or 5879610 for a 32-bit long.  This limitation occurs in the day_in_week()

I tried removing the artificial limitation and it appears to give
correct results.

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