On Sun, Jun 17, 2012 at 5:54 PM, Jonathan S. Shapiro <[email protected]> wrote:
> On Sun, Jun 17, 2012 at 12:37 PM, Elias Gabriel Amaral da Silva

>> But if you know the interface and you use only this interface, there
>> is full type agreement.
>
>
> Yes. In this particular usage pattern, you know everything you need to know
> to *invoke* the object, but you don't have enough information to
> stack-allocate the object, because you don't know the size.
>
> Except you *do* know the size, because the interface tells you. The problem
> is that you know the size in a way that can only be used to perform an
> untyped storage allocation.

What do you need to know to perform a typed storage allocation?
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