[Octave-bug-tracker] [bug #61762] qp should check positive definiteness

[Markus Mützel]

Follow-up Comment #5, bug #61762 (project octave):

The order in which fields appear in a structure is important. (Or it can cause
issues when trying to concatenate these structures.)
That's the kind of error that I was trying to hint at with my comment. (Though
admittedly "a lot" was probably an exaggeration.)

Also in the code further down in qp.m, there are some checks for nargout.
Would we need to replicate those here?

I'm still not sure if it is a good idea to replicate that code (from a
maintainability point of view).
I haven't looked into it in much detail. But might that cause the function to
return a value when it otherwise would error out at some of the tests that are
skipped?

(Also, I haven't come across "quadratic" as a synonym for "positive definite".
Do those mean the same?)

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