Must a NULL pointer be a 0 bit pattern?

[Henry Spencer]

> As for explicit initializers, I certainly don't see a good reason for
> picking the first element of a union; it is very likely that in two
> variables of the same union type, I would want the initialization to
> occur to two different elements.

As I understand it, nobody is claiming that the "first element" rule is
good; all they are claiming is that it's simple and does not have adverse
consequences elsewhere.  Apparently the various alternatives all have
serious problems of one kind or another.
-- 
				Henry Spencer @ U of Toronto Zoology
				{allegra,ihnp4,linus,decvax}!utzoo!henry