On Tue, Sep 19, 2000 at 10:11:23PM -0700, Nathan Wiger wrote: > undef null > ------------------------ ------------------------ > $a = undef; $a = null; > $b = 1; $b = 1; > $c = $a + b; $c = $a + $b; > > $c is 1 $c is null If you want different semantics for undef then use a pragma, that is what pragmas are for. use tristate; $a = undef; $b = 1; $c = $a + b; $c is undef I did mention this to Larry and his answer was, "you can do anything you like with pragmas" However I would suggest that many, including myself, would not like to see perls values have yet another state of null Graham.
- RFC 263 (v1) Add null() keyword and fundamental data t... Perl6 RFC Librarian
- Re: RFC 263 (v1) Add null() keyword and fundament... Tom Christiansen
- Re: RFC 263 (v1) Add null() keyword and funda... Nathan Wiger
- Re: RFC 263 (v1) Add null() keyword and f... Peter Scott
- Re: RFC 263 (v1) Add null() keyword and f... Graham Barr
- Re: RFC 263 (v1) Add null() keyword a... Nathan Wiger
- Re: RFC 263 (v1) Add null() keyw... Graham Barr
- Re: RFC 263 (v1) Add null() ... Nathan Wiger
- Re: RFC 263 (v1) Add nul... John Porter
- Re: RFC 263 (v1) Add nul... Tom Christiansen
- Re: RFC 263 (v1) Add nul... Glenn Linderman
- Re: RFC 263 (v1) Add nul... Tom Christiansen
- Re: RFC 263 (v1) Add nul... Glenn Linderman
- Re: RFC 263 (v1) Add nul... Tom Christiansen
- Re: RFC 263 (v1) Add nul... Nathan Wiger