I have been watching this question and hoping someone one respond with an answer on the subject so that I could get more insight. This is a relatively simple question and it has not received a response.

I think that this question points out one of the weaknesses of Perl. XS is poorly documented/explained so there are few people who are able to be subject matter experts. I really wish that XS was more accessible so that more people could get involved on the subject.

In reply to Re: Review of patch to avoid adding magic with rvalue $#a (XS gurus wanted) by Herkum
in thread Review of patch to avoid adding magic with rvalue $#a (XS gurus wanted) by ikegami

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