array new-expressions: proposal

[Daveed Vandevoorde]

Matt Austern wrote:
[...]
> PROPOSAL A.
> 
> No version of operator new[] is a special case.
[...]
> PROPOSAL B.
> 
> ::operator new[](size_t, void*) is a special case.  For that
> version of operator new[] only, n1 = n * sizeof(T).  We do not
> store the number of elements in such an array anywhere.

There is a reason that placement new is called _placement_ new:
the intent was to allow the placement of objects and arrays at a 
given address.  In effect, it's a way to specify a "this" pointer
to a constructor.

So I think Proposal A is really not a good idea.

	Daveed