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Re: isKindOfClass returns null instead of YES or NO
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Re: isKindOfClass returns null instead of YES or NO


  • Subject: Re: isKindOfClass returns null instead of YES or NO
  • From: "Sean McBride" <email@hidden>
  • Date: Thu, 21 May 2009 12:33:00 -0400
  • Organization: Rogue Research Inc.

On 5/20/09 11:45 PM, Andy Lee said:

>> 		NSLog(@"Is Member of NSURL: %@", [[step class] isMemberOfClass:
>> [NSURL class]]);
>
>The %@ placeholder is for arguments that are objects.
>isMemberOfClass: and isKindOfClass: return a BOOL, which is not an
>object.

Jeff,

And if you're wondering if the compiler could warn you that %@ and BOOL
do not match, the answer is unfortunately no.  -Wformat=2 can give such
warnings when using sprintf() and friends, but not NSString methods.
One of my pet peeves. :)

--
____________________________________________________________
Sean McBride, B. Eng                 email@hidden
Rogue Research                        www.rogue-research.com
Mac Software Developer              Montréal, Québec, Canada


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  • Follow-Ups:
    • Re: isKindOfClass returns null instead of YES or NO
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References: 
 >isKindOfClass returns null instead of YES or NO (From: Jeff Decker <email@hidden>)
 >Re: isKindOfClass returns null instead of YES or NO (From: Andy Lee <email@hidden>)

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