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in reply to Re^2: Unable to Understand grep and hash use for prime no.
in thread Unable to Understand grep and hash use for prime no.

That's why Davido's module uses XS and C++. An optimised Perl implementation would have a challenge to re-invent the processor in some ways, whereas in C++, structs can be used to map one datatype over another without any conversion, bit-shifting or reassignment making it easier to simulate a 2^N bit machine, where N is arbitrary.

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