Re: gnuplot segfaults on keyboard interaction

[Tatsuro M. <tma...@ya...>]

Hello

I think it is a bug to be reported.
In the release note of gnuplot-4.4.0
*************
Support
-------
Please report all bugs and installation problems to the bug tracker
on SourceForge:

	http://sourceforge.net/tracker/?group_id=2055&atid=102055
*******************

So please report bug to the sf bug tracker in order to trace the bug easily afterwards.
The above note do not deny discussions on the beta ML, I believe.

Regards

Tatsuro 

--- J将舐gen Wieferink wrote:

> Am Montag, 15. Mセュ璽rz 2010 15:24:39 schrieb Benjamin Lindner:
> > 
> > But I managed to (hopefully) track it down to :
> >  event_keypress()
> >  builtin_toggle_grid()
> >  do_string_replot()
> >  replotrequest()
> >  m_capture()  <- segfault
> > 
> > Here m_capture() is called with both the parameters "start" and "end" as -1
> >  which (not surprisingly) leads to problems as the array token[] is indexed
> >  with both start and end.
> > 
> > The problem is, that at the time replotrequest() is called from within
> >  do_string_replot(), c_token is -1 and num_token is zero (Why? because
> >  do_string_and_free() calls lf_pop(), which sets c_token=-1 and
> >  num_token=0).
> > 
> > But apparently replotrequest() assumes that neither is the case, instead it
> >  tries to read tokens where there are none.
> 
> A remarkably good bug report.  As far as I can see,
> do_string_replot() should not call a function which takes a look at
> the command line.  I am surprised that this has not produced more
> problems so far.  I assume that part of replotrequest() belongs into
> replot_command().  Unfortunately, I do not have time to look deeper
> into this issue.
> 
> Juergen

Tatsuro wrote
>However gnuplot 4.5 on windows hangs even if one use
>gnuplot foo.gp -
> and press any key or mouse operation on the graph window.

>I think that it is a problem.

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