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SubjectRe: Filesize limitation

I think the orignal author was refering to files larger then 2gigs.

On Mon, 3 Nov 1997, Richard B. Johnson wrote:

> On Mon, 3 Nov 1997, Andre Uratsuka Manoel wrote:
>
> >
> >
> > On Mon, 3 Nov 1997, Richard B. Johnson wrote:
> >
> > -> On Mon, 3 Nov 1997, Andre Uratsuka Manoel wrote:
> > ->
> > -> >
> > -> There is plenty of "room" available in the object types that would
> > -> define a file in Linux for an ext2 file-system (like fpos_t, etc.)
> > ->
> > -> I don't have a spare disk large enough to make a 2Gb file. However,
> > -> I would guess that if you can't make one (with large enough media), there
> > -> is either a bug in the program that tries to create it or possibly a
> > -> bug in the kernel. You don't need 64 bits to manipulate a 2 Gb file.
> > ->
> > ->
> >
> > That's good, but it seems to me libc users a signed integer
> > (ssize_t) for functions like read, write, seek, tell. Couldn't that
> > cause problems, too?
> >
> > Also, the possibility of bugs in the program is still there.
> >
> > Thanks and regards
> > Andre
> >
> >
>
> Don't see how....
>
> #include <stdio.h>
>
> main()
> {
> long foo = 0x07fffffff; /* Largest signed 32-bit */
> printf("%ld bytes \n", foo);
> foo /= 1024;
> printf("%ld kilobytes\n", foo);
> foo /= 1024;
> printf("%ld megabytes\n", foo);
> }
>
> 2147483647 bytes
> 2097151 kilobytes
> 2047 megabytes
>
> As you can see, 2 Gb fits fine. ssize_t is a 32-bit (long) int under
> Linux.
>
>
> Cheers,
> Dick Johnson
>
> Richard B. Johnson
> Project Engineer
> Analogic Corporation
> Penguin : Linux version 2.1.60 on an i586 machine (66.15 BogoMips).
> Warning : It's hard to remain at the trailing edge of technology.
>


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