If they are highly educated, why not just say "if you use $&, the program slows down heavily", and let the highly educated engineers decide whether it matters or not.
In my mind, I picture this scenario: ...
I think they company would benefit much more from getting a decent testing procedure than to focus on one particular issue that might cause a slow down.

Your situation is best described as "penny-wise, pound foolish". Except that the pounds are worth lots of dollars.

Abigail

In reply to Re: detecting $& usage by Abigail-II
in thread detecting $& usage by greatdane

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