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in reply to What is true and false in Perl?

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Re^2: What is true and false in Perl?
by ikegami (Patriarch) on Sep 15, 2009 at 18:10 UTC

    "0" is not boolean, and neither is "",

    Noone said they are. It was said they are false.

    Providing such a 'feature' comes with a very significant readability and maintainability cost that is simply not justified.

    That's odd. Perl, Python, PHP, C, C++, JavaScript, VB and the 5 or 6 CPU I know work that way. The only language I know that doesn't is Java.

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      Also LISP.
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Re^2: What is true and false in Perl?
by runrig (Abbot) on Apr 16, 2012 at 16:17 UTC
    True and False are boolean values and should only ever exist as such.

    You and your silly two valued logic. Now go away or I shall taunt you a second time!

    I never said True and False were the only boolean values!

    Update: You didn't actually say that. But that's how you should have replied to this post, if I were to respect your opinion at all, not that you'd care whether or not I respect your opinion, nor do I care whether you care ...

    Really though, thank goodness we don't have to say if ( $is_foo == TRUE ) (although, sadly, some "programmers" still do...)

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Re^2: What is true and false in Perl?
by Anonymous Monk on Aug 10, 2009 at 19:26 UTC
    I love this 'feature'. It allows code like the following: 
    while (@array) {
    my $whatever = shift @array;
    # process $whatever;
}

    [download]
    The loop ends when the array is empty.
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Re^2: What is true and false in Perl?
by Anonymous Monk on Sep 15, 2009 at 17:27 UTC
    Then don't use it.
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Re^2: What is true and false in Perl?
by Anonymous Monk on Sep 10, 2013 at 15:25 UTC

    Add the following line to your program, then PERL will work as you prefer, grasshoppah.

    use constant { TRUE => 1, FALSE => 0 };
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