> > pre-existing SV* (I am creating one by casting the AV* to SV*), so it
NEEDS
>
> I can't see how this can have any meaning; casting in C doesn't have any
runtime
> behavior, AFAIK.

No, but compile-time, if you change the underlying basic value (eg. casting
int to unsigned int). This might be noticed logicaly first time at run-time.
In this case though both pointers are integers (on i386).

I know this is off topic, but..

--
Aigars



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