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Re^4: The mystery of double negation (bool 0)

by zwon (Abbot)
on Jul 13, 2015 at 20:55 UTC ( #1134593=note: print w/replies, xml ) Need Help??

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  1. or download this
    $ perl -MO=Deparse -E'say !1; say ~~(!1); say ~~("");'
    use feature 'current_sub', 'evalbytes', 'fc', 'say', 'state', 'switch'
    +, 'unicode_strings', 'unicode_eval';
    ...
    say 0;
    say '';
    -e syntax OK
    

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