Re^2: fall through switch/case in perl

[BrowserUk]

Actually, this is just a standard switch statement,-- not Duff's device.

On the clarity argument, it's very much in the eye of the beholder whether your if cascade (or the and cascade) is clearer than the computed-goto version?

For completeness, the computed goto version works out an average of over 60% faster than either of the cascade versions, which is rather more than a few dozen clock cycles.

[Aristotle]

That's because it doesn't test and retest conditions like the cascades do, it just computes a goto target.

[BrowserUk]

I know that! And that's why it's a better conversion of the c switch statement.