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Re: -isEqual: equals '==' ?

From: Bissell, Tim
Subject: Re: -isEqual: equals '==' ?
Date: Mon, 20 Oct 2003 14:16:34 +0100

On Sunday, Oct 19, 2003, at 06:41 Europe/London, Richard Frith-Macdonald wrote:

On Sunday, October 19, 2003, at 06:24 AM, Yen-Ju Chen wrote:


 Is -isEqual: the same as '==' ?

No (though it might be implemented that way for a particular class).

To clarify; == compares two pointers - if they point to the same address/object in memory they are equal, otherwise they are not. -isEqual: compares two OBJECTS for equality -you may have two NSString object instances with the same contents: "Foo" - they would return true for
'-isEqual:' but false for ==.

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