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Re: view/edit large files
From: |
Miles Bader |
Subject: |
Re: view/edit large files |
Date: |
Wed, 18 Feb 2009 06:19:24 +0900 |
Eli Zaretskii <address@hidden> writes:
>> > Is off_t guaranteed to be 64-bit wide? If not, we lose the advantage
>> > of the floats, no?
>>
>> If the system isn't capable of handling large files at all, then there's
>> no point in worrying about it, right?
>
> Some systems can handle large files, but only if you use something
> like off64_t.
Sure, but using variant interfaces for large-file support is a much
bigger and more intrusive change.
Oh, BTW, of course there's a range of offsets which are still within
32-bits, and are representable by floats but not by emacs integers.
A separate question is whether emacs should try to use something like
_FILE_OFFSET_BITS=64 by default or not (on linux/solaris/... that causes
64-bit variants of off_t, syscalls, etc, to be used even on 32-bit
systems).
>> No. The values being represented are integers. The user almost
>> certainly will not be passing in a non-integral float
>
> I was thinking about 1234.99999 or some such, due to inaccuracies in
> converting textual representation into a float.
This should not happen with integer values (if it does, something is
very wrong).
-Miles
--
Congratulation, n. The civility of envy.
- Re: view/edit large files, (continued)
- Re: view/edit large files, Eli Zaretskii, 2009/02/10
- Re: view/edit large files, Miles Bader, 2009/02/10
- Re: view/edit large files, Eli Zaretskii, 2009/02/10
- Re: view/edit large files, Miles Bader, 2009/02/10
- Re: view/edit large files, Eli Zaretskii, 2009/02/10
- Re: view/edit large files, Ted Zlatanov, 2009/02/10
- Re: view/edit large files, Stefan Monnier, 2009/02/17
- Re: view/edit large files, Eli Zaretskii, 2009/02/17
- Re: view/edit large files, Miles Bader, 2009/02/17
- Re: view/edit large files, Eli Zaretskii, 2009/02/17
- Re: view/edit large files,
Miles Bader <=
- Re: view/edit large files, Miles Bader, 2009/02/17
- Re: view/edit large files, Eli Zaretskii, 2009/02/17
- Re: view/edit large files, Stefan Monnier, 2009/02/17
- Re: view/edit large files, Ted Zlatanov, 2009/02/20
- Re: view/edit large files, Eli Zaretskii, 2009/02/10
- Re: view/edit large files, Miles Bader, 2009/02/10
- Re: view/edit large files (was: map-file-lines), Richard M Stallman, 2009/02/07
- Re: view/edit large files, Ted Zlatanov, 2009/02/09
- Re: view/edit large files, Richard M Stallman, 2009/02/10
- Re: map-file-lines, Mathias Dahl, 2009/02/06