Re: So what's null then if it's not nothing?
From: Frank Hamersley <terabitemightbe_at_bigpond.com>
Date: Mon, 28 Nov 2005 04:58:08 GMT
Message-ID: <A7wif.5513$ea6.729_at_news-server.bigpond.net.au>
>
> I had not noticed your comment before I said, later, roughly the same
> with respect to the empty string vs. NULL:
>
> "This empty string discussion is a bit strange to put it mildly. If one
> remebers what a string is (a list of characters), then an empty string
> is just an empty list, a perfectly legitimate value that one can use
> in a very much the same fashion as the integer zero."
Date: Mon, 28 Nov 2005 04:58:08 GMT
Message-ID: <A7wif.5513$ea6.729_at_news-server.bigpond.net.au>
vc wrote:
> David Cressey wrote:
> [..]
>
>>As I comented a couple of weeks ago, >> >>A || EMPTY == EMPTY || A == A for every string A >> >>That makes EMPTY a pretty interesting string, from my point of view. I >>wouldn't want to confuse it with NULL any more than I'd want to confuse the >>integer zero with NULL. >> >> My comment drew no response. I'm not about to draw any inferences from >>that absence of a response.
>
> I had not noticed your comment before I said, later, roughly the same
> with respect to the empty string vs. NULL:
>
> "This empty string discussion is a bit strange to put it mildly. If one
> remebers what a string is (a list of characters), then an empty string
> is just an empty list, a perfectly legitimate value that one can use
> in a very much the same fashion as the integer zero."
Cheers, Frank. Received on Mon Nov 28 2005 - 05:58:08 CET