>  The standard doesn't guarantee that the offset calculated from a given
>  static_cast will work again, given the same source and target types.
>  Actually doing the static_cast is the only portable way to find the Base*
>  from a Derived*. Indirection through a function pointer which does the
>  static_cast might be an option.

I read somewhere an integer is always the size of a pointer.  What about a
(void *) in the worse case?



Philippe A. Bouchard





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