[fpc-devel] TStreamReader (streamex unit) issue

[Michael Van Canneyt]

Thanks. I've assigned it to myself.

Michael.

On Fri, 9 Apr 2021, Andrea Mauri via fpc-devel wrote:

> Submitted as: 0038734 (https://bugs.freepascal.org/view.php?id=38734)
>
> On Fri, 9 Apr 2021 at 09:11, Michael Van Canneyt <michael at freepascal.org>
> wrote:
>
>>
>> Hello,
>>
>> Can you please post this in the bugtracker ?
>> So it will not be forgotten.
>>
>> Michael.
>>
>> On Thu, 8 Apr 2021, Andrea Mauri via fpc-devel wrote:
>>
>>> Dear all,
>>> TStreamReader.ReadLine seems to fail under specific circumstances.
>>> I created a test to easily reproduce the problem.
>>> The test makes use of a TStream that behaves in a weird, but formally
>>> correct way. I created it based on a real experience with the StdIn that
>> I
>>> was able to reproduce thanks to pre-existing logging.
>>> I suggest you use the test on Windows otherwise I'm not sure you'll be
>> able
>>> to reproduce the problem.
>>>
>>> I believe the bug can be fixed by updating VPByte right after FillBuffer
>> is
>>> called:
>>>
>>>      [...]
>>>      FillBuffer;
>>>      VPByte := @FBuffer[FBufferPosition]; //bugfix
>>>      VPosition := FBufferPosition;
>>>      [...]
>>>
>>> Tested with Lazarus 2.0.10 FPC 3.2.0 on Win64
>>>
>>> Posted on lazarus forum at:
>>>
>> https://forum.lazarus.freepascal.org/index.php?topic=54033.msg400820#msg400820
>>>
>>> Is it a bug or am I missing something?
>>>
>>> Kind regards,
>>> Andrea
>>>
>>
>