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What is the best value for an empty point in C++?
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I don't ensure whether "0" or "NULL" is better to be an empty point's value in C++. Could anybody can tell me,and why?
Then how about it in C, why?
Thank you!
Then how about it in C, why?
Thank you!
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As answered by Stroustrup:
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In C++, the definition of NULL is 0, so there is only an aesthetic difference. I prefer to avoid macros, so I use 0. Another problem with NULL is that people sometimes mistakenly believe that it is different from 0 and/or not an integer. In pre-standard code, NULL was/is sometimes defined to something unsuitable and therefore had/has to be avoided. That's less common these days.
I don't accept change; I don't deserve to live.
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Just because it is possible to push twigs along the ground with one’s nose does not necessarily mean that that is the best way to collect firewood.
Can you tell me what is your opinion in whether use "NULL" in C++?
Thank you very much !
>I am sorry for that I can't understand what's this sentence's meaning?
Where did you find that sentence? It's nowhere in this thread.
>Can you tell me what is your opinion in whether use "NULL" in C++?
0 and NULL are the same thing in C++. Pick one and use it consistently.
Where did you find that sentence? It's nowhere in this thread.
>Can you tell me what is your opinion in whether use "NULL" in C++?
0 and NULL are the same thing in C++. Pick one and use it consistently.
Last edited by Narue; Jun 6th, 2007 at 3:53 pm.
I'm here to prove you wrong.
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> Where did you find that sentence? It's nowhere in this thread.
Yes, its my damned signature.
Yes, its my damned signature.
I don't accept change; I don't deserve to live.
Get a more interesting signature! If I don't notice it, it's not worth reading.
I'm here to prove you wrong.
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Pushing twigs with one's nose never was interesting... :-)
Plus, the more interesting my signatures become, the more debate it sparks and more are the threads created in the Moderators Place. ;-)
Plus, the more interesting my signatures become, the more debate it sparks and more are the threads created in the Moderators Place. ;-)
Last edited by ~s.o.s~; Jun 6th, 2007 at 4:06 pm.
I don't accept change; I don't deserve to live.
The Moderator's Place has been too slow anyway. If you want, I can suggest one:
Ah, that guy can totally read my mind. 
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I hate VB.NET’s continuous bloody interference. I HADN’T FINISHED TYPING YET YOU STUPID COMPILER! CAN’T YOU SEE THAT? DOES IT LOOK TO YOU LIKE I’M DONE TYPING? DID IT NOT OCCUR TO YOU THAT THE REASON YOU’VE FOUND ALL THOSE ERRORS IS BECAUSE I’M NOT FINISHED YET?!! I’LL TELL YOU WHEN I WANT YOU TO CHECK MY WORK, AND NOT BEFORE!
-- Ian Griffiths
I'm here to prove you wrong.
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Heh good one. But since it seems that I seem to be the center of most discussions there, maybe its time someone else started playing the part of a scape goat. ;-)
I don't accept change; I don't deserve to live.
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