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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c
Subject: Re: How to read a data file whose size is unknown in C?
Date: Thu, 13 Aug 2015 13:39:12 -0700
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glen herrmannsfeldt <gah@ugcs.caltech.edu> writes:
> Bartc <bc@freeuk.com> wrote:
>> On 13/08/2015 01:04, Richard Heathfield wrote:
>>> On 13/08/15 00:44, Bartc wrote:
>  
>>>> Except the file itself could grow, shrink or be updated at the same
>>>> time. Reading a file into memory could actually be impossible!
>
>>> Right. Again, that's why this is very OS-specific. My original answer
>>> was based on the assumption that the file is well-behaved and stands
>>> still while you're trying to measure it.
>  
>> But if we're making assumptions, why not also that fseek and ftell work 
>> as expected?
>
> How do you expect them to work?

As specified by POSIX.

[...]

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"