>>105827064
>If you create areas for each object then that's just RAII and you will need some other allocator to dynamically manage these areas.
this was the last bridge
it can be done. its not optimal, but it can
but you could also do some more fancy stuff like having an index where you have a address of the pointer-associated arena block. block which contains your non-deterministic-lifetime object alone
or have second order arenas to avoid allocating/deallocating your stuff and use heuristics when allocating blocks your first order arenas

theres so much you can do with arenas, there isnt a one-size-fits-all solution, and some of them are somewhat expanding what an arena is even called
but at its origin, its still an arena