Re: [boost] Smart Pointer new/Forwarding Problem Solved (by Force)

From: Larry Evans (cppljevans_at_[hidden])
Date: 2006-03-29 23:10:05

On 03/29/2006 05:05 PM, Peter Dimov wrote:
> 
> make_shared_ptr<T>( a, b, c ) (or however we end up calling it) still has 
> the advantage of being able to fold the two allocations into one. 
> 
I assume the two allocations are for the detached refcount and the
referent.  Wouldn't placing them in the same block of memory with
a single call to new (and I assume this is what you mean by
"fold the two allocations into one") mean that shared_ptr would have
to change it's two deletes (1 for refcount and 1 for referent) into one?
IOW, make_shared_ptr would not make the current shared_ptr but
another type of smart pointer.  Or am I missing something?