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in reply to Re: Numification of strings
in thread Numification of strings

No, it will not be ' ', it will be ''. That's not the same thing.

And actually if a variable has not been assigned, then it's value is undef, which is not a string, but its stringified value is '' an numified value is 0. There is no such thing as an "undefined string" or "string variable"! It is a scalar variable whose value may be undef and/or string and/or integer and/or float and/or reference.

Jenda
Enoch was right!
Enjoy the last years of Rome.

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Re^3: Numification of strings
by LanX (Saint) on Aug 02, 2010 at 14:00 UTC
    well always? :)

           dualvar NUM, STRING
           Returns a scalar that has the value NUM in a numeric contex
+t and
           the value STRING in a string context.
 
               $foo = dualvar 10, "Hello";
               $num = $foo + 2;                    # 12
               $str = $foo . " world";             # Hello world

    [download]

    Cheers Rolf

[reply]
[d/l]

      And what does this disagree with? I never said the integer and string values of a scalar variable have to be in any way related.

      Jenda
      Enoch was right!
      Enjoy the last years of Rome.

[reply]
        Well take it as clarification that there are no "string variables" but "scalar variables" with different slots.

        Perl is so magic that, easy answers are not always true...

        Cheers Rolf

[reply]

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