Works for me. What your build output and your .c?

But I've found that it creates a second scalar that points to root, so DESTROY is now being called twice for the same pointer.

In reply to Re^5: How to keep C variables "alive" between invocations with Inline::C by ikegami
in thread How to keep C variables "alive" between invocations with Inline::C by Limbic~Region

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