Speed is not completely irrelevant for the task at hand. That's antoher reason why I'm reluctant to try copy everything back and forth and like the idea of just blessing a reference to a pointer. Also, the C library actaully does have methods for almost everything, so there's very little API use for actually having wrapper Per blessed-hash objects. to manage stuff.

But let me ask the question another way:

What does the Perl interpreter guarantee about dual value objects? Is there any official guarantee of semantics?

I Mean... Scalar::Util even advertises the use of dualvar() to set both an interger and a string value on a scalar. So some guarantees must be provided.

If the guarantee is to alway copy and preserve the entire struct SV and struct xpvmg... and in general support multi-valued vars (PV,IV,NV) ...and.. hmm.. NV being the same size as IV, then there should be nothing wrong with the approach.

In reply to Re^4: Managing C library memory in XS by petermogensen
in thread Managing C library memory in XS by petermogensen

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