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Date: Tue, 22 Apr 1997 10:46:44 -0400 (EDT)
From: Thomas David Rivers <ponds!rivers@dg-rtp.dg.com>
Message-Id: <199704221446.KAA04079@lakes.water.net>
To: ponds!staff.psinet.net.au!adrian, danny@panda.hilink.com.au
Subject: Re: 64 bit number definitions?
Cc: ponds!FreeBSD.ORG!freebsd-hackers
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Daniel O'Callaghan writes
> 
> On Tue, 22 Apr 1997, Adrian Chadd wrote:
> 
> > Is there anywhere a 64 bit type in C I can get my hands on?
> > (the longest i've seen builtin to the compiler is the unsigned long, but I
> > commonly write more than 4 gigabytes to tape at once).
> > 
> > Which reminds me, freebsd's GNU tar apparently uses an "int" type for
> > tot_written, that doesn't look like it cant count over 32k bytes.
> 
> File offsets are described as off_t which is a quad_t, which is a 'long 
> long'.
> 
> I don't know why off_t is not u_quad_t (unsigned long long).
> 
> Snuggle up and read /usr/include/sys/types.h before going to sleep tonight.
> 
> Danny
> 

 Just a guess - but probably for negative offsets to lseek().

	- Dave Rivers -