[Octave-bug-tracker] [bug #49793] octave's inputParser only accepts validation functions that return true or false

[Amro]

Follow-up Comment #9, bug #49793 (project octave):

An anonymous function is similar to a regular one defined as: "function
varargout = fcn(x)", and nargout will return -1 for both, just like MATLAB.
Hence I was checking "nout~=0" rather than "nout>0".

But you're right, my version won't work unless there was a fixed error
ID/message for the too-many-outputs case. Not to mention I assumed it was okay
to call the validation twice..

I don't know how hard it is, but I guess a fix for nargout is needed here.


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