For hack value, here is an expressive version:

sub also_correct {
    @{ ( map { @$_ ? $_ : [ list1() ] } [ list0() ] )[0] }
}

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(For some reason @{} executes its expression in void scalar context, which necessitates the ()[0] gymnastics to force the correct context on map, which would otherwise return 1. That cost me some time to track down, because I was testing on the shell in one-liners with no strict. In retrospect that was stupid, considering I was testing code with references.)

This is the list-context equivalent of list0() || list1() and has the same short-circuiting behaviour as ||.

Makeshifts last the longest.

In reply to Re: Bitten by the || bug by Aristotle
in thread Bitten by the || bug by Tanktalus

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