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Re^2: "undef" is not NULL and what to do about it

by Ovid (Cardinal)
on Feb 22, 2013 at 20:09 UTC ( #1020219=note: print w/replies, xml ) Need Help??


in reply to Re: "undef" is not NULL and what to do about it
in thread "undef" is not NULL and what to do about it

Ah, bugger. I should have been more clear. You're absolutely right that it's very unclear what a given NULL should mean. What I meant was that the behavior of NULL is very clear and predictable, regardless of meaning. There are rare cases where you get a false negative, but unlike undef, you generally don't get a false positive. That's a trade-off I prefer, though I can see that many others don't.

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[Corion]: marto: Yeah - their mother picked all three of them up at the kindergarden to then go to the hospital, and all three of them were well behaved, and all also were quite obedient when they came home, so they recognized the situation
[Corion]: Nice to see that the kids have some understanding of important things that happen and the appropriate behaviour :)
[marto]: at times mine surprise me with this behavior :)
[Corion]: I mean, in a way it would be nicer+easier if they always where that obedient, but it's comforting to see that they are when it matters, at least for now ;)

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