On May 20, 2009, at 11:43 AM, Jeff Decker wrote:
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. Perhaps you were expecting them to return a string @"YES" or
@"NO", but that's not what they do.
You can replace the %@ with %d and you will get either a 0 (meaning
NO) or a 1 (meaning YES).
See the docs on "String Format Specifiers":
<http://developer.apple.com/documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html
>
--Andy
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