Re: Does a null pointer always raise Constraint_Error?

[Keith Thompson <kst@cts.com>]

Wayne Magor <none@nowhere.com> writes:
[...]
> I remember with one Ada compiler I wanted to make null to be a
> pointer to a zero-length segment so the null check would be
> unnecessary (the hardware would do it for you).

Would a zero-length segment be a good way to represent a zero-size
object?  If so, a pointer to a zero-length segment might be valid.

-- 
Keith Thompson (The_Other_Keith) kst@cts.com  <http://www.ghoti.net/~kst>
San Diego Supercomputer Center           <*>  <http://www.sdsc.edu/~kst>
Welcome to the last year of the 20th century.