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

[Kai Torben Ohlhus]

Update of bug #56232 (project octave):

                  Status:         Patch Submitted => Ready For Test         

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Follow-up Comment #51:

Thank you all for taking care.

@Rik: Your patches solve my original issue:


>> C = sparse (2, 2, 0); inv (C)
error: inv: division by zero
>> C = sparse (ones (2)); C = C - C; inv (C)
error: inv: division by zero


>> ver
----------------------------------------------------------------------
GNU Octave Version: 5.1.1 (hg id: c0d8ce61c1c9)
GNU Octave License: GNU General Public License
Operating System: Linux 4.12.14-lp150.12.58-default #1 SMP Mon Apr 115:20:46
UTC 2019 (58fcc15) x86_64
---------------------------------------------------------------------


Personally, I like the current error behavior of Octave.  I am surprised, that
Matlab actually creates Matrices with a huge fill-up when inverting a sparse
or empty matrix.  But as Marco says this might be a discussion for the
developer list.

The segfault is fixed, so this item for me :-)

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