Re: dia SIGSEGV when I move Class object

[Lars Clausen <lrclause cs uiuc edu>]

On 29 Aug 2003, Dmitry Perfilyev wrote:
> > Of course the fact that GDB itself is broken by this point indicates
> > some runaway pointer bug earlier on.  I hate those things.  Maybe
> > valgrind or what's-it-called on Solaris would be the best to diagnose
> > this.
>
> I've replaced standart Sun (from sunsolve) libexpat package to
> self-compilled version expat-1.95.6 and GDB error disappeared.
>
> > > And stack:
> > >
> > > (gdb) where #0 0xfe50e71c in umlclass_update_data (umlclass=0x312640)
> > > at class.c:564
> > [...]
> >
> > Scary, that line reads:
> > umlclass->connections[0].pos = elem->corner;
>
> In my gdb that line reads:
> (gdb) f
> #0  0xfe54e71c in umlclass_update_data (umlclass=0x2efa38) at class.c:564
> 564       pointspacing = elem->width / (pointswide + 1.0);
> (gdb) list class.c:564
> 559     
> 560       /* there are four corner points and two side points, thus all
> 561        * remaining points are on the top/bottom width
> 562        */
> 563       pointswide = (UMLCLASS_CONNECTIONPOINTS - 6) / 2;
> 564       pointspacing = elem->width / (pointswide + 1.0);
> 565     
> 566       /* across the top connection points */
> 567       for (i=1;i<=pointswide;i++) {
> 568         umlclass->connections[i].pos.x = x + (pointspacing * i);
>
>
> > which is no different than what the other objects do.  Can you check
> > what the other objects involved are, to see which one is the core
> > dumper?  I.e. umlclass->connections, umlclass->connections[0], elem.
> There is only one object "Class" in the page.  Sequence: New -> Place UML
> Class object on the page -> try to move -> core

Well, unless you've set UMLCLASS_CONNECTIONPOINTS to 4, which would be a
strange thing to do, I guess the above expat thing could be to blame.  Ick!

> > I'd love to see Dia working on Solaris.  Hey, I'd even let Sun pay me to
> > work on it:)
> And includes Dia in StarOffice ;)

That'd take some work, I think:)

-Lars

-- 
Lars Clausen (http://shasta.cs.uiuc.edu/~lrclause)| HÃrdgrim of Numenor
"I do not agree with a word that you say, but I   |----------------------------
will defend to the death your right to say it."   | Where are we going, and
    --Evelyn Beatrice Hall paraphrasing Voltaire  | what's with the handbasket?