[C-prog-lang-l] Testing input issue

[Jura Pelc]

I found the bug and solve it. It looks like the stack was somehow fill from
the last interation of cycle. A simle condition solve it

if(gets(str) == NULL)
          LastCommand = 1;

Thans,

čt 6. 6. 2019 v 9:54 odesílatel Jura Pelc <jirik.pelc1998 at gmail.com> napsal:

> In basic I have this cycle:
>
> while(1)
> {
>           char str[MAX_COMMAND_LENGTH + 1];
>           fgets(str, MAX_COMMAND_LENGTH + 1, stdin);
> }
> cmd is: echo '1p' | ./app Small.txt
> and output is:
>
> 49 112 10Lorem ipsum dolor sit amet consectetuer eu Praesent dui libero
> Donec. Enim diam lobortis risus nec tempus tortor a Curabitur adipiscing
> Duis.
>  49 112 10Lorem ipsum dolor sit amet consectetuer eu Praesent dui libero
> Donec. Enim diam lobortis risus nec tempus tortor a Curabitur adipiscing
> Duis.
>  49 112 10Lorem ipsum dolor sit amet consectetuer eu Praesent dui libero
> Donec. Enim diam lobortis risus nec tempus tortor a Curabitur adipiscing
> Duis.
>  49 112 10Lorem ipsum dolor sit amet consectetuer eu Praesent dui libero
> Donec. Enim diam lobortis risus nec tempus tortor a Curabitur adipiscing
> Duis.
>  49 112 10Lorem ipsum dolor sit amet consectetuer eu Praesent dui libero
> Donec. Enim diam lobortis risus nec tempus tortor a Curabitur adipiscing
> Duis.
> ... infinite
>
>
> These numbers are chars in str
> It looks like the input is cycling or the buffer counter not moving.
>
> čt 6. 6. 2019 v 9:26 odesílatel Vladimír Kotal <vlada at devnull.cz> napsal:
>
>> In general there should not be much difference modulo buffering however
>> that should not impact the outcome.
>>
>> How exactly do you test for end of input ?
>>
>>
>> V. Kotal
>>
>> Dne st 5. 6. 2019 23:13 uživatel Jura Pelc <jirik.pelc1998 at gmail.com>
>> napsal:
>>
>>>
>>> Hi,
>>> I finished coding Ed Phase 1. I thing (I hope) I have done everything
>>> according to task. Today I want to start testing and found one issue.
>>> The first test ended in infinite loop. I found, then the application
>>> infinitely reading input a executing it.
>>> When the same input is used in running application it is fine.
>>>
>>> I have these construct to gen input
>>>                 fgets(str, MAX_COMMAND_LENGTH + 1, stdin);
>>> And command is:
>>>                 1p
>>> I let app to print me chars and in both situations it is 49, 112, 10
>>> So newline char is here and fgets should stop at new line
>>>
>>> So my question is: *What is difference between standard input directly
>>> from console and send by pipe?*
>>>
>>>
>>> --
>>>
>>> S pozdravem Jiří Pelc
>>> Matematicko-fyzikální fakulta
>>> Univerzita Karlova
>>> _______________________________________________
>>> c-prog-lang-l mailing list
>>> c-prog-lang-l at mff.cuni.cz
>>> http://mbox.ms.mff.cuni.cz/listserv/listinfo/c-prog-lang-l
>>>
>> _______________________________________________
>> c-prog-lang-l mailing list
>> c-prog-lang-l at mff.cuni.cz
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>>
>
>
> --
>
> S pozdravem Jiří Pelc
> Matematicko-fyzikální fakulta
> Univerzita Karlova
>


-- 

S pozdravem Jiří Pelc
Matematicko-fyzikální fakulta
Univerzita Karlova
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