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I suspect that if there was a real need for this and an XS solution does actually provide substantial speed gains over substr or the reverse and chop trick then it'd have already been done.

Most times a smarter algorithm gives much more bang for the buck than tinkering with an implementation to make the old algorithm a little faster.

True laziness is hard work

In reply to Re^3: Efficient walk/iterate along a string by GrandFather
in thread Efficient walk/iterate along a string by gje21c

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