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Re: 1. Early returns have nothing to do with tail calls. You can return early with a tail call, and have the "late" return also feature a tail call, and you can have a single simple expression with the recursive call not in a tail position (cf. OP's factorial definition).

user7043
– user7043

2012-05-18 13:18:46 +00:00
Commented May 18, 2012 at 13:18
@delnan: Thanks; it's early and it has been quite a while since I've studied the thing.

Telastyn
– Telastyn

2012-05-18 13:22:20 +00:00
Commented May 18, 2012 at 13:22

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