Two people have already done
scalar x!! $cond
but the parens are required
( scalar ) x!! $cond 

>perl -le "@a = 'test' x 0; print scalar @a"
1
>perl -le "@a = ('test') x 0; print scalar @a"
0

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In reply to Re: Secret Perl Operators: the boolean list squash operator, x!! by ikegami
in thread Secret Perl Operators: the boolean list squash operator, x!! by Aristotle

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