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[bearophile]

Ellery Newcomer:

> Won't the union balloon Wrapper's size to always be that of the largest 
> inner struct that you use?

Yes, all items in an array must have the same size. If you want items of different size you have to add a level of indirection, storing inside the array pointers to the structs. Then your structs can be of different size, and you need pointer casts, as I have written in another post.

Bye,
bearophile