pointer size (Was: Re: "void **" : Is it valid and what does it mean?)

[zlsiial at cs.man.ac.uk]

In a recent posting Joseph Toth (toth at tellabs.com) wrote:

> On a single machine, the size of the pointer is based upon the
> addressable range of memory, and is always the same _size_.

This is not true.  I work in C on a large number of machines, and
one of them has two different pointer sizes (32 and 48 bits).
These access addressable memory in different ways.  

                    -- Owen