[Octave-bug-tracker] [bug #64962] Avoid unessecary copy of dim_vector

[Rik]

Follow-up Comment #3, bug#64962 (group octave):

I don't think this was a comprehensive review.  Rather, Petter found an
instance which could clearly be improved and so made the change.

If there is a simple way to find these instances with grep or some other tool
I think we should convert more of the code base to do this.

I've never been able to get a good profiling run on Octave to find the real
hotspots.  But, I always do find that we are creating and destroying a lot of
temporary objects.  Eliminating that should help.


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