When it is amoral... (Re: When is a cast not a cast?)

[Doug Gwyn]

In article <2763 at buengc.BU.EDU> bph at buengc.bu.edu (Blair P. Houghton) writes:
-	Now I know much, much better.  A pointer isn't really a
-	data type at all.  It's a different sort of beastie,
-	germane only within a program, and therefore it is
-	fallacious to see it as having the properties of a
-	countable, measurable, or otherwise physical entity.
-The way pointers work implies that they don't refer at all to
-anything physical, even to memory locations.

I don't think you have it figured out yet.

-It doesn't change the fact that I'd like to be able to add and subtract
-pointers regardless of what trouble I _might_ get into.

Fine; cast them into the appropriate integral type and do whatever
integral arithmetic your heart desires.  Don't expect anyone else to
appreciate the beauty of your code when you've done this..