Yes, perl doesn't know, else it wouldn't copy the array. But my question is _why_ doesn't it know? Unless I'm mistaken, there's enough information in the code to know that @a will not be used again--even at compile time. This seems like a trivial optimization to me, but as I say, perhaps I'm overlooking something.

In reply to Re^2: Why doesn't perl optimize this? by nbtrap
in thread Why doesn't perl optimize this? by nbtrap

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