Am Dienstag, dem 16.12.2025 um 21:25 +0100 schrieb
[email protected]:
I REPORTED A SERIOS CRASH problem below..
I am an experience C++ developer
and can help to fix the problem.
?SOLUTION:
Do you think it is feasible to compile
it as a Win64 and/or using
typedef int64_t pos_type ;
or find another work-around , that I can go on ?
Dear Frank,
Thank you for your detailed report. I have a doubt though about the
cause of the bug. Do you get any backtrace, for example if you start LyX
from a console?
He is my reasoning : we use pos_type not as a difference of pointers,
but as a signed integer of the same size as size_t. The (bad) reason for
that is that we sometimes use the special value -1 to indicate a
position that concerns the whole paragraph.
However, to have a case where beginOfBody() is negative, we would need a
paragraph with more than 2 billion characters and additionally have all
these characters be in the 'label' part. This is the part in bold when
one uses a Description or Labeling layout, before the first space.
Unless you confirm that your document has such a structure, I am
inclined to look for another reason.
So now, this is the time when I enter in full divination mode :
somewhere in your document, you have a paragraph with Labeling layout
(Liste with German interface) which first paragraph is a line break inset.
In any case, this is how I managed to reproduce such a crash. The crash
happens when LyX tries to display the paragraph, so it may seem random.
If you want to find the culprit and solve it, I would advise opening the
lyx files in a text editor and search for something like:
\begin_body
\begin_layout Labeling
\labelwidthstring 00.00.0000
\begin_inset Newline newline
\end_inset
<maybe some content>
\end_layout
I would advise removing the whole paragraph, because it does not make
much sense.
Did I get it right?
Anyway, thanks a lot for the report. I have committed to master a fix to
the issue I have detected.
I am surprised though that this assertion is enabled in the code that we
distribute. This is something that we have to discuss wrt our Windows
packaging.
Riki, can I backport to 2.4.x and 2.5.x ?
HTH,
Jean-Marc
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