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September 2004

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2004.09.16 19:12 "BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.16 19:23 "Re: BigTIFF Tag Value Count issue", by Frank Warmerdam
2004.09.16 19:36 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.16 19:38 "Re: BigTIFF Tag Value Count issue", by Frank Warmerdam
2004.09.16 20:08 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 01:14 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.16 22:39 "Re: BigTIFF Tag Value Count issue", by Ian Ameline
2004.09.17 00:09 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 00:32 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 01:54 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 02:29 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 02:58 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 03:08 "Re: BigTIFF Tag Value Count issue", by Chris Cox
2004.09.17 04:20 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 04:39 "Re: BigTIFF Tag Value Count issue", by Chris Cox
2004.09.17 11:25 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 14:31 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 14:40 "Re: BigTIFF Tag Value Count issue", by Frank Warmerdam
2004.09.17 15:02 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 21:41 "Re: BigTIFF Tag Value Count issue", by Chris Cox
2004.09.17 14:53 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 15:06 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 21:36 "Re: BigTIFF Tag Value Count issue", by Chris Cox
2004.09.17 05:46 "Re: BigTIFF Tag Value Count issue", by Frank Warmerdam
2004.09.17 11:40 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 13:11 "Re: BigTIFF Tag Value Count issue", by Frank Warmerdam
2004.09.17 13:34 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 15:10 "Re: BigTIFF Tag Value Count issue", by Fernando Loygorri
2004.09.17 15:10 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 15:55 "Re: BigTIFF Tag Value Count issue", by Fernando Loygorri
2004.09.17 16:00 "Re: BigTIFF Tag Value Count issue", by Frank Warmerdam
2004.09.17 16:33 "Re: BigTIFF Tag Value Count issue", by Fernando Loygorri
2004.09.17 16:13 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 16:34 "Re: BigTIFF Tag Value Count issue", by Fernando Loygorri
2004.09.17 16:43 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 21:48 "Re: BigTIFF Tag Value Count issue", by Ross A Finlayson
2004.09.17 22:15 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn
2004.09.17 21:41 "Re: BigTIFF Tag Value Count issue", by Chris Cox
2004.09.17 11:38 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 06:35 "Re: BigTIFF Tag Value Count issue", by Rob Tillaart
2004.09.17 11:43 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 12:46 "Re: BigTIFF Tag Value Count issue", by Rob Tillaart
2004.09.17 12:55 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 13:20 "Re: BigTIFF Tag Value Count issue", by Rob Tillaart
2004.09.17 13:47 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.17 13:08 "Re: BigTIFF Tag Value Count issue", by Ross A Finlayson
2004.09.19 12:31 "Re: BigTIFF Tag Value Count issue", by Andrey Kiselev
2004.09.19 16:43 "Re: BigTIFF Tag Value Count issue", by Joris Van Damme
2004.09.20 16:18 "Re: BigTIFF Tag Value Count issue", by Ed Grissom
2004.09.20 22:05 "Re: BigTIFF Tag Value Count issue", by Steve Carlsen
2004.09.20 23:09 "Re: BigTIFF Tag Value Count issue", by Bob Friesenhahn

2004.09.17 16:34 "Re: BigTIFF Tag Value Count issue", by Fernando Loygorri

> I have the same problem in Delphi. But I decided to just not 
> care. What are the odds of a file growing beyond 2^63-1 bytes?

As I asked in another reply, what is the problem with the spec
limiting the size to 2^63-1 instead of 2^64-1, then?

> If you're unsure about that, another option is to always 
> check whether the 64bit value is negative, and if it is, error 
> out.

But, then I cannot claim that the tool I write supports BigTIFF,
just a subset of it, which is no good for my purposes.

> And even if it is a problem, adjusting the spec to compensate for our
> implementation trouble, is, I think, not very good practice. 
> The major factor in spec design should be logic, instead, and this 
> logically is an unsigned value and there is no logical reason to 
> discriminate bit 63.

I disagree. There is nothing magic about the number 64. When 32
bits were becoming a straitjacket, the jump to 64 bits was made
because we already have a convenient data type for it in
languages like C. The equally convenient value for Java and
Delphi is 63.

Regards,

FGL