My understanding is that the operators such as += .= -= are immune from uninitialized warnings whereas their longwinded counterparts ($x = $x + 1) are not. After beating myself about the head trying to figure out exactly what will trigger this warning, I posted a little quiz about my findings.

-Blake

In reply to Re: (tye)Re2: Swapping object variables by blakem
in thread Swapping object variables by Matts

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