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Re: "Secret" operators

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Andrew Savige
February 1, 2005 17:33
Re: "Secret" operators
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José Castro wrote:
> Apart from the "secret eskimo greeting" and the "goatse operator",
> can anyone tell me about other "secret" operators?

Let's not forget the Ton Hospel "high-precedence decrement"
operator ~- invented during a golf tournament (anyone remember
which one?).

IIRC, Ton's ~- invention allows you to eliminate the parens in:

    $y = ($x-1)*4;

by using instead:

    $y = ~-$x*4;

saving a whopping two strokes. This trick should work on any
twos complement machine -- and I'm not aware of any perl running
on any non twos complement machine.


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