[Octave-bug-tracker] [bug #51950] sparse qr may return a malformed sparse matrix R with out of bounds entries

[Kenneth Hoste]

Follow-up Comment #22, bug #51950 (project octave):

I'm afraid I'm not knowledgeable enough to contribute to the proposed long
term solution (nor do I have time, for that matter).

Is there a "dirty" patch we can come up with to circumvent this problem?

This is currently blocking us from moving forward with running a large MATLAB
program on top of Octave instead.

With some pointers, I may be able to come up with a patch for this myself, for
example by trying to implement to deletion of extra rows  that get added
(unless that has been ruled out already as a potential fix/workaround, that's
not clear to me).

Another option is that we somehow dance around this in the application code.
How crazy would it be to try and avoid calling sparse_qr by using non-sparse
matrices?
I have to check how large the matrices are we're dealing with here, that's
probably an important factor...



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