>Ahh, but that's very different.  My suspicion is that both the last-expr
>scalar of the block and the $result scalar will share the same single
>payload, similar to how:

>        $x = $y

>doesn't actually copy the *content*... just the scalar wrapper around
>the content.

Does this mean that $x, $y taken as references internal by Perl interpreter
actually? 
$x = $y, means that $x, $y shares the same memory but not allocate new
memory for $x then copy the content of $y to $x ?




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