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Re: Re: Re: Pure Perl tail call optimization

by TimToady (Parson)
on Mar 05, 2004 at 20:02 UTC ( #334343=note: print w/ replies, xml ) Need Help??

in reply to Re: Re: Pure Perl tail call optimization
in thread Pure Perl tail call optimization

Um, goto &SUB does create a new stack frame, but only after the old one is stripped off. (Shouldn't leak memory though.)

And goto LABEL doesn't do a linear search through the source file. And the way the (non-linear) search is written, going from the last statement to a label at the beginning should be pretty fast. Benchmarks are the only way to tell which will be faster.

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