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From: Janis Papanagnou <janis_papanagnou+ng@hotmail.com>
Newsgroups: comp.lang.c
Subject: Re: Buffer contents well-defined after fgets() reaches EOF ?
Date: Sun, 9 Feb 2025 18:34:55 +0100
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On 09.02.2025 16:27, Andrey Tarasevich wrote:
> On Sat 2/8/2025 11:13 PM, Janis Papanagnou wrote:
>> But now I wanted to ignore all data that I got for fgets() != NULL
>> in the loop. And I hoped that *after* the loop the last read data is
>> still valid.
> 
> As Michael already noted it depends on what you consider as the last
> piece of valid data in your file.

I have a strong opinion of a text file concerning line terminators;
I answered that in my reply Michael.

> Say, what do you want to see as "the
> last line" in a file that ends with
> 
>   abracadabra\n<EOF here>
> 
> ?
> 
> Is "abracadabra" the last line? Or is the last line supposed to be empty
> in this case?

If "\n" is a string literal (2 characters, '\' and 'n') then it's an
incomplete line (as to my standards), if it's meant as a <LF> control
character then it's complete. (Similar with <CR> on old Apple/Macs and
<CR><LF> on DOS-alike systems.)

Janis