in reply to Re^2: Efficient walk/iterate along a string
in thread Efficient walk/iterate along a string
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
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