[Octave-bug-tracker] [bug #42152] Overloaded vercat() not called in some other cases

[Mike Miller]

Update of bug #42152 (project octave):

                  Status:                    None => Confirmed              

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Follow-up Comment #3:

That should have been "@double/horzcat" in my second bullet point.

Actually creating a @double/horzcat.m function with the following body


function y = horzcat(varargin)
  y = builtin('horzcat', varargin{:});
end


actually fixes this issue completely. Because the method can be resolved, the
class concatenation can succeed on the non-class double type, and the
resulting class array is finished correctly.

I would characterize this bug slightly differently than the current summary,
instead of the fact that the overloaded vertcat method is not being called,
it's more accurate to say that class-based concatenation of a row of primitive
types fails because the builtin cat methods are not looked up properly in a
class context.

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