At 03:35 PM 10/1/2001 -0700, Brent Dax wrote:
>Wizard:
># This was discussed to some extent on this list before (see RFC
># http://dev.perl.org/rfc/263.pod). If parrot is expected to be
># a JVM for
># countless other languages, then it MUST (IMHO) understand the
># concept of
># NULL. Either that, or it must make allowances for the dynamic
># inclusion of a
># definition of NULL (whatever that might mean).
>
>What's the semantic difference between NULL and undef?
NULL's used for tri-state logic. Current common place to see it's in SQL.
Basically NULL's not equal (and not not equal) to everything.
Dan
--------------------------------------"it's like this"-------------------
Dan Sugalski even samurai
[EMAIL PROTECTED] have teddy bears and even
teddy bears get drunk
