Only in the context of perl -e, as when run from a script, generates the same error (Argument "0 but true" isn't a numeric in addition (+) at line #. Also, both still print 0. And in both cases the attempt to add the string to 0 is ignored.

In reply to Re^4: What is true and false in Perl? by Anonymous Monk
in thread What is true and false in Perl? by root

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