[Dune] allocators... dingleton vs. instance

[Markus Blatt]

On Tue, Oct 02, 2012 at 10:32:58PM +0200, Christian Engwer wrote:
> 
> Assume the following:
> 
> AllocatorType<Foo> alloc1;
> AllocatorType<Foo> alloc2;
> Foo * f = alloc1.allocate(1);
> alloc2.deallocate(f,1);
> 
> Is this supposed to work? In general I would assume not (although it
> will work for many implementations). Is there somewhere a place that
> states that the instance of an allocator is important and not only the
> type?

My gut feeling is that there is no guarantee for this to work.

One might want to implement an allocator that manages allocation in
a  memory chunk allocated in the initializer.

Indeed there is nothing in the standard about it. Maybe ask on a list?

Markus

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