What about using slots?


Craig Hicks

＞> This would be somewhat problematic. Potentially, there could be a
＞> mechanism for having a different "stack" for each thread. Suggestions on
＞> how this could be achieved are welcome 

＞Policies?  multi-threaded version has a container of allocators, hashed on 
＞the thread ID?  A faster alternative would be to require the user to 
＞specify which stack they want.  Both could be accomodated with something 
＞like