It just comes down to speed. The real case applies some fairly complex logic to multiple large bit vectors (each 1m+ bits) which runs a lot faster in C. What I have works well, but as noted in the OP I'm unsure if my approach is risky vs Perl's internals.

In reply to Re^2: Bit vector fiddling with Inline C by oxone
in thread Bit vector fiddling with Inline C by oxone

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