AW: [PATCH] fread.3: Explain that file position is moved after calling fread()/fwrite()

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________________________________________
Von: Arkadiusz Drabczyk [arkadiusz@xxxxxxxxxxxx]
Gesendet: Mittwoch, 17. Juni 2020 19:30
An: Walter Harms
Cc: Jakub Wilk; Michael Kerrisk; linux-man@xxxxxxxxxxxxxxx
Betreff: Re: [PATCH] fread.3: Explain that file position is moved after calling fread()/fwrite()

On Wed, Jun 17, 2020 at 07:46:25AM +0000, Walter Harms wrote:
> Hi,
> i do not think character is correct it would confuse fseek() it says:
> "The new position, measured in bytes"

ok, v2 already sent.

> to make things more complicated fread has a "size" and returns the
> number of "things" read (" This number equals the number of bytes
> transferred only  when size  is 1.").
>
> therefor i would suggest to move the success case
> > > +The file position indicator for the stream is advanced by the number
> > > +of characters successfully read or written.
> into the "description section"

ok, let's see what Michael thinks about it.

> And add a word about partial reads into the "return value" section. E.g.
> to make clear what happens when you try to read size=10 while only 4 are left.
>

Isn't it already covered by this fragment:

"If an error occurs, or the end of the file is reached, the return
value is a short item count (or zero)."

IMHO no,
what does a "short item count" mean ?
E.g. my size is 4 bytes and there are 3 bytes left to read. what is the return value 
and will the last few bytes ever read ? 

--
Arkadiusz Drabczyk <arkadiusz@xxxxxxxxxxxx>




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