On Fri, Dec 30, 2022 at 12:21:52AM +0100, Steffen Nurpmeso wrote: > ..i want to reiterate the relation to what "human logic" expects.
I'm a human, so I feel qualified to address this point. What I expect from a command like (( i += j += i += j )) is to get unpredictable results that have no relationship to anything useful, because that code is complete rubbish. I can't even guess what the *intent* of the code is. I'm not optimistic enough to expect an error message, or even better, an immediate termination of the shell. That would be *far* too useful (because it would force the script's author to rewrite that code).
