Darren New <dne### [at] sanrrcom> wrote:
> >   It looks like a really inefficient way of computing a simple calculation.

> It's a lazy calculation. Hopefully the compiler can figure out when it 
> doesn't actually need to do that.

  It's provable (no, not a typo of "probable", different thing) that, in
the general case, the problem "will this line of code ever be executed?"
is an unsolvable problem. Hence a compiler can make that decision only
in the most trivial cases.

-- 
                                                          - Warp

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