i don't have access to 5.6 at the moment and so cannot investigate your question, but just as a matter of curiosity, why use the expression return @rv[ 0 .. $#rv ];
when it seems to me it will return exactly the same thing as return @rv;
and when the latter expression does not involve the behavior of the ..
range operator in the case where the terminal value is less than the initial value, i.e., 0 .. -1
in the case of $#rv
when the array @rv
(you haven't been messing with $[ have you?)
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