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Re: view/edit large files
From: |
Miles Bader |
Subject: |
Re: view/edit large files |
Date: |
Tue, 10 Feb 2009 19:02:55 +0900 |
Eli Zaretskii <address@hidden> writes:
>> "floats" can exactly represent integers if the integer quantity fits
>> within the mantissa. For an IEEE double, that's 52 bits, which is
>> enough for many uses
>
> Right, but is it enough in this case? I don't know, it all depends on
> what kind of time resolution is needed. Also, time values are
> frequently used in arithmetic operations that could lose a few low
> bits.
If it's an integer, and it fits, it's exact -- there is no loss of precision.
>> (for an inode number, I'm not sure -- obviously
>> it's enough for 32-bit inode numbers, but possibly not some 64-bit
>> numbers
>
> Windows NTFS uses 64-bit numbers for the ``file index'' we use as the
> replacement for inode.
For traditional style inode numbers, which are allocate sequentially
from zero, it doesn't matter; however, for abstract 64-bit quantities
for which no guarantees, it wouldn't work.
-Miles
--
Discriminate, v.i. To note the particulars in which one person or thing is,
if possible, more objectionable than another.
- Re: map-file-lines, (continued)
- Re: map-file-lines, Ted Zlatanov, 2009/02/04
- Re: map-file-lines, Richard M Stallman, 2009/02/05
- view/edit large files (was: map-file-lines), Ted Zlatanov, 2009/02/06
- Re: view/edit large files, Ted Zlatanov, 2009/02/06
- Re: view/edit large files, Miles Bader, 2009/02/06
- Re: view/edit large files, Ted Zlatanov, 2009/02/09
- Re: view/edit large files, Stefan Monnier, 2009/02/09
- 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 <=
- 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, 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, Stefan Monnier, 2009/02/17