After spending nearly half of my votes on this thread this morning, I'd contemplated updating the node above; but I also wanted to further comment, thus I'm adding this node.

When I originally replied above, optree modification had not entered my mind. However, that option is certainly no less complex than unrolling the loop. At first glance it seems like that optree modification might be the answer, but as the code example to do that by diotalevi shows, its not trivial.

I think QM's post below is an excellent summary of this thread and the [good] ideas presented.

-Scott

In reply to Re^2: Doing "it" only once by 5mi11er
in thread Doing "it" only once by Limbic~Region

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