[Octave-bug-tracker] [bug #55245] exist accepts empty matrix as first argument in Matlab but is error in Octave

[Richard]

Follow-up Comment #4, bug #55245 (project octave):

It's not documented and probably accidental.

In my case I discovered it because class properties initially default to [],
and a class property was a file name. I didn't check for empty before exist as
it had worked so far in Matlab.

There are easy workarounds, but it will cause potentially cause code developed
for Matlab which behaves correctly to throw an error in Octave. Up to you if
you think this is important.

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