[Octave-bug-tracker] [bug #47699] FLTK can segfault after using copyobj

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?47699>

                 Summary: FLTK can segfault after using copyobj
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Thu 14 Apr 2016 01:10:54 PM PDT
                Category: Plotting with OpenGL
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: dev
        Operating System: GNU/Linux

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Details:

This is a regression, and doesn't affect the qt toolkit.

Steps to reproduce


./run-octave -f --no-gui
graphics_toolkit fltk
demo ("copyobj", 1)
## Click on the title bar of the window labeled "Original" to activate it.
## Click on the title bar button to close the window completely.
>> error: base_graphics_object::set: invalid graphics object
error: parse error
error: called from
    delete at line 60 column 5
    closereq at line 42 column 5
    close at line 96 column 5
## Click on the title bar button to close the "Copyobj" window

## Octave segfaults
error: base_graphics_object::set: invalid graphics object
terminate called after throwing an instance of 'octave_execution_exception'
panic: Aborted -- stopping myself...







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