Just a matter of idle curiosity... I notice you use  @$ref-1 instead of  $#$ref for obtaining the max array index. Why do you prefer this? If  $[ were ever changed (but don't do that!),  @$ref-1 would yield an incorrect value for max index. (Although I suppose that one could argue that to be $[-safe, one ought always to iterate over  $[ .. $#array rather than  0 .. $#array to safely visit the entire range of  @array indices.)

Also, in your second code example
    splice @$ref,-$removed;
might be written as the (presumably) marginally faster
    $#$ref -= $removed;

Update: I should make it clear that this post was prompted mainly by the non-idiomatic nature of the  @$ref-1 expression. Any "lack-of-safety" issue is only a kind of cayenne pepper icing on the cake.

In reply to Re^2: removing duplicates from an array of hashes by AnomalousMonk
in thread removing duplicates from an array of hashes by Anonymous Monk

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