My best guess is that you're seeing the for loop in the second version terminate at the wrong time (either dying early or running past the end of %SEQ depending on the size of @codons) because you keep changing the value of $s. But that's just a guess as to how it's failing. If I'm wrong about the failure mode, then I'm most likely wrong about the cause as well.
In reply to Re: foreach to for (related to my last question)
by dsheroh
in thread foreach to for (related to my last question)
by tricolaire
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