It is a good idea to read the links the others have provided. In the meantime, the following should get you over this hump. It assumes that the function maturity_sort behaves like a proper sort function (returns <0 for a < b, returns >0 for a > b, and 0 for a == b), and that it takes the full record, not just the "maturity" key:

    my $tmp; # to avoid allocation every loop iteration
    @sorted =
        sort {
           ($tmp = maturity_sort($the_data{$a}, $the_data{$b})) ?
               $tmp : ($the_data{$a}->{rich_cheap} <=>
                       $the_data{$b}->{rich_cheap});
        }
    (keys %the_data);

[download]

--rjray

In reply to Re: Sorting by rjray
in thread Sorting by olmsiat

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