[Octave-bug-tracker] [bug #56232] Octave crash when inverting an empty sparse matrix.

[Rik]

Follow-up Comment #45, bug #56232 (project octave):

It took several hours to verify all uses of nzmax in Octave.  I think changing
Octave to universally reserve memory for a single value is okay.  I checked in
the change on the stable branche here
(https://hg.savannah.gnu.org/hgweb/octave/rev/c0d8ce61c1c9).

One nice thing is that it fixed a bad interaction with the amd libraries. 
Previously,


octave:1> symamd ([])

symamd version 2.9, May 4, 2016: ERROR.  Array A (row indices of matrix) not
present.
error: symamd: internal error!


But now,


octave:1> symamd ([])
ans = [](1x0)


which is the same as Matlab.


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