Maybe put the word "Sequential" in the name (like FixedBufferSequentialAllocator) to really hammer it down that you can't randomly delete. Then also have a mov

Maybe put the word "Sequential" in the name (like FixedBufferSequentialAllocator) to really hammer it down that you can't randomly delete. Then also have a movable head pointer so you can still deallocate in either reverse or forward order, it will still successfully free everything.