std.allocator ready for some abuse

[Andrei Alexandrescu]

On 10/24/13 2:16 PM, Artem Tarasov wrote:
> The design looks great. Easy to grasp and covers almost all imaginable
> use cases.
>
> 'Almost' because it would be nice to also have ScopeAllocator!N ~
> FallbackAllocator!(InsituRegion!N, Mallocator) which would automatically
> deallocate all heap-allocated blocks when exiting the scope (i.e. no
> deallocate method, array of pointers to be freed is kept on a C heap).

Great point, clearly you cut to the chase :o). Yes, I hope to integrate 
that, and I'm a bit pained I didn't have the time to do that.

The way I see that could be done is by defining a ScopedAllocator that 
uses internally an AffixAllocator with a doubly-linked list tracking all 
allocations. In the destructor, ScopedAllocator would walk the list and 
deallocate everything allocated since its construction.

Andrei