[fpc-devel]Some bugs in FCL in 1.0.x and 1.1 found and corrected

Michael.VanCanneyt at Wisa.be Michael.VanCanneyt at Wisa.be
Sat Jul 26 12:20:20 CEST 2003

On Sat, 26 Jul 2003, [ISO-8859-2] Micha³ Kamburelis wrote:

> Hi
> I was just playing with fcl examples and I found one bug in
> inc/streams.inc and A LOT of bugs in win32/fileinfo.pp. Bug in
> inc/streams.inc concerned the TStringStream class (I guess noone is
> using this class for anything so this bug was not noticed). And unit
> fileinfo.pp was totally unusable since these bugs prevented it from
> returning ANY version information info.

Strange, I tested that code and it worked fine for me.

> I corrected these bugs. Sorry, I'm unable to generate diffs so I will
> simply give here instructions on how to correct the bug in streams.inc
> and I'm attaching corrected version of fileinfo.pp. I found these bugs
> while compiling programs with FPC 1.0.10, FPC 1.1 is totally unstable on
> my win32 and linux so I wasn't able to actually _see_ these bugs in FPC
> 1.1. But I see that streams.inc and fileinfo.pp sources are exactly the
> same for FPC 1.0.10 and 1.1 so I'm pretty sure that these things should
> be corrected in FPC 1.1 in the same way.
> Here is how to correct streams.inc bug: line 713 in inc/streams.inc
> ("ReadString:='';") should be REMOVED (this line is pure nonsense, it
> prevents method TStringStream.ReadString from returning correct result).
> There were so many bugs and memory leaks in fileinfo.pp that I'm simply
> attaching to this letter corrected version of the file. I put some
> comments at the beginning of this file describing what I changed/added.
> I hope these corrections will be applied to fpc 1.1. And anyone of you
> that is using stable version, 1.0.10 and wants to use TStringStream or
> TFileVersionInfo classes from FCL should probably apply these
> corrections to his FPC 1.0.10 too.

The FCL is shared between 1.1 and 1.0. We will be making ready-to-use
installation packages for it, with fixes such as these.

Thanks for these fixes, I will apply them later today.


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