Would a pointer to a pointer to nil match against NULL?

Posted by dontWatchMyProfile on Stack Overflow See other posts from Stack Overflow or by dontWatchMyProfile
Published on 2010-06-13T06:20:52Z Indexed on 2010/06/13 6:22 UTC
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Filed under:

objective-c

Example:

A validation method contains this check to see if an NSError object shall be created or not:

- (BOOL)validateCompanyName:(NSString *)newName error:(NSError **)outError {
    if (outError != NULL) {
        // do it...

Now I pass an NSError object, like this:

NSError *error = nil;
BOOL ok = [self validateCompanyName:@"Apple" error:&error];

I'm not sure if this matches the check for not NULL. I think it's not NULL, since I believe NULL is not nil. Maybe someone can clear this up?

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Developer IT

Would a pointer to a pointer to nil match against NULL? - Developer IT

Would a pointer to a pointer to nil match against NULL?

objective-c

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ObjectiveC builtin template system ?

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