Re^10: Specializing Functions with Currying

Tail recursion has a seldom-noted cost. Sure, it speeds up some recursive code. But it also means that if you get into trouble, a stack backtrace will be missing a lot of potentially useful context.

That said, you can manually do tail-recursion in Perl with goto. Unfortunately it is not as efficient as it should be, and I'm not entirely sure why.

Comment on Re^10: Specializing Functions with Currying

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Re^11: Specializing Functions with Currying by stvn (Monsignor) on Aug 07, 2004 at 00:06 UTC
That said, you can manually do tail-recursion in Perl with goto. Unfortunately it is not as efficient as it should be, and I'm not entirely sure why. I think that it basically comes down to the fact that `goto` is just not all that efficient, and the amount of bookkeeping code needed to do that (for non-trivial implementations) outweighed the benefits. -stvn	[reply] [d/l]