Crashes applying "Path along path" effect to closed contour

[Bug Importer]

Inkscape 0.46+devel from SVN at 02.09.2007.

For example, create an ellipse, apply "Path -> Object to path". Press
Ctrl-Shift-7, select "Path along path" and press Apply. Et volia! :)
Inkscape writes to console:

glibmm-ERROR **:
unhandled exception (type std::exception) in signal handler:
what: vector::_M_range_check

aborting...

Emergency save activated!
Emergency save completed. Inkscape will close now.
If you can reproduce this crash, please file a bug at www.inkscape.org
with a detailed description of the steps leading to the crash, so we can
fix it.
terminate called after throwing an instance of 'std::out_of_range'
  what(): vector::_M_range_check

After some experiments, I found that one dirty hack solves this problem: in
file src/live_effects/lpe-skeletalstrokes.cpp, in function
LPESkeletalStrokes::doEffect, change line
"n = force_continuity(remove_short_cuts(n,.1));"
to
    try
    {
      n = force_continuity(remove_short_cuts(n, .1));
    }
    catch (std::exception)
    {
      printf("Force_continuity exception\n");
    }

I.e., a bug is in "force_continuity" or in "remove_short_cuts" functions.

[Johan Engelen (johanengelen)]

Originator: NO

Not fixed yet, but does not crash any more.

[Johan Engelen (johanengelen)]

Exception can no longer occur, since no zerolength pw<d2>'s can happen after toPwSb().
Thanks Mental!