On Feb 16, 2012, at 11:44 , Ken Thomases wrote: > Well, the documentation for -[NSDictionary isEqualToDictionary:] > <https://developer.apple.com/library/ios/DOCUMENTATION/Cocoa/Reference/Foundation/Classes/NSDictionary_Class/Reference/Reference.html#//apple_ref/occ/instm/NSDictionary/isEqualToDictionary:> > says: > > "Returns a Boolean value that indicates whether the contents of the receiving > dictionary are equal to the contents of another given dictionary." > > And: > > "Two dictionaries have equal contents if they each hold the same number of > entries and, for a given key, the corresponding value objects in each > dictionary satisfy the isEqual: test."
That's what I meant by a hint. We *assume* that by design -[NSDictionary isEqual:] invokes -[NSDictionary isEqualToDictionary:], perhaps with a check on the class of the parameter first. The other hint I found was in the NSObject protocol for 'isEqual:': <https://developer.apple.com/library/mac/#documentation/Cocoa/Reference/Foundation/Protocols/NSObject_Protocol/Reference/NSObject.html> "This method defines what it means for instances to be equal. For example, a container object might define two containers as equal if their corresponding objects all respond YES to an isEqual: request. See the NSData,NSDictionary, NSArray, and NSString class specifications for examples of the use of this method." Note that it says "might". Also, the only examples of using 'isEqual' I could find in the NSDictionary class reference are discussions of equal keys, not equal dictionaries. Either way, I don't see an API contract. _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
