Using NULL would make your code easier to read, setting
a variable to NULL makes it obvious that a variable is a pointer,
at least in C, NULL does not have to be 0, 0 could be a valid pointer
value*, and NULL
some other invalid value, many people got in the habit of writing
if (!foo)
sure the compiler will automagically convert 0 in a pointer context to
an invalid pointer value,
plus preprocessor turns NULL back into 0 which is then recognized by the it
using NULL or nil (ObjC) is the recommended way, when referring to a pointer
for the tip an uninitialized variable is not really nothing
On Wed, Aug 20, 2008 at 6:50 PM, Quincey Morris
<[EMAIL PROTECTED]> wrote:
> On Aug 20, 2008, at 18:15, mm w wrote:
>
>> as a previous oppenant said yeh dude it's normal it's undefined/ nothin
>> nada :)
>>
>> int main(void) {g
>> char *p1;
>> char *p2 = NULL;
>>
>> if(!p1)
>> puts("hello p1");
>>
>> if(!p2)
>> puts("hello p2");
>>
>> return 0;
>> }
>>
>> output "hello p2"
>
> I not sure of the state of computer science on planet Neptune, but here on
> Earth we pretty much grasped the concept of an uninitialized variable about
> 50 years ago.
>
>
> _______________________________________________
>
> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>
> Please do not post admin requests or moderator comments to the list.
> Contact the moderators at cocoa-dev-admins(at)lists.apple.com
>
> Help/Unsubscribe/Update your Subscription:
> http://lists.apple.com/mailman/options/cocoa-dev/openspecies%40gmail.com
>
> This email sent to [EMAIL PROTECTED]
>
--
-mmw
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to [EMAIL PROTECTED]
