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Subject: Re: What to do with too-large group ids?
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> From: Kai.Grossjohann@CS.Uni-Dortmund.DE (Kai
> Date: Mon, 29 Jul 2002 09:36:58 +0200
> 
> Richard Stallman <rms@gnu.org> writes:
> 
> > You could return large uids as strings.
> 
> They might easily be confused for user names in that case.

Then why not return them as floating-point numbers instead?  This is
what's already done for file sizes, if they are out of range for an
integer.