[Octave-bug-tracker] [bug #57245] "clear all" generates segfault if run before or after a plot

[Carlo de Falco]

Follow-up Comment #10, bug #57245 (project octave):

[comment #9 comment #9:]
> What does "graphics_toolkit" return before and after "clear all"? 


>> graphics_toolkit 
ans = gnuplot
>> clear all
>> graphics_toolkit 
ans = gnuplot


[comment #9 comment #9:]
> What is get (0, "defaultfigure__graphics_toolkit__") before and after "clear
all"?


>> get (0, "defaultfigure__graphics_toolkit__")
ans = gnuplot
>> clear all
>> get (0, "defaultfigure__graphics_toolkit__")
ans = gnuplot
>> exit


[comment #9 comment #9:]
> What does "available_graphics_toolkits" return? 


>> clear all
>> available_graphics_toolkits 
ans =
{
  [1,1] = gnuplot
}


[comment #9 comment #9:]
> Does it also cause a segfault after "clear all"?

No, it doesn't. But I do get a segfault if I type 'exit' after 'clear all' and
any of the above commands

[comment #9 comment #9:]
> Can you compile without stripping the symbols and get the backtrace from the
error again?

Actually I think I have, I compiled everything with '-g -O0' and disabled
stripping (which does not work on macos anyway) so I don't know exactly why
references to source code are missing but debugging Octave on macos is
notoriously difficult

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