rena::Pointer</code> shall be a fancy-pointer, but we could support raw pointers also. Suppose <a class="el" href="classipc_1_1shm_1_1stl_1_1Stateless__allocator.html#ab8733c1237be93ee28664e4b983d535c" title="Short-hand for the Arena type this uses for allocation/deallocation/pointer semantics.">Arena_obj</a> is set up in such a way as to map all processes' locally-dereferenceable pointers to the same SHM location to the same numeric value (by specifying each pool's start as some predetermined numerical val