in reply to Re^4: help with user selected hash operations?
in thread help with user selected hash operations?
an incomplete hash reference...
The critical point is not that the {$add_dad} "name" you are assigning in the
$son_father{$name1} = {$add_dad};
statement is an incomplete hash reference, it's that it is a hash reference at all. Please ask your professor about "anonymous hash and array constructors (or composers)". Please see Making References (item 3 in particular) in perlref.
Give a man a fish: <%-{-{-{-<
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