Yes, because your recursion is strictly "tail end". So replace the recurive call with a statement to reset the parameters and jump back to the top. E.g. $low=$mid+1; redo; with the whole thing in a do.

An optomizing compiler would see "return foo(args)" within the same function foo and do just that for you. In languages like Lisp and Prolog, it's critical for the implementation.


In reply to Re: bushy recursion a good thing ? by John M. Dlugosz
in thread bushy recursion a good thing ? by mandog

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