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POIsEqual Method Sent to Deallocated Instance When Trying to Add Object To MutableOrderedSet
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  1. POIsEqual Method Sent to Deallocated Instance When Trying to Add Object To MutableOrderedSet
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    copied!<p>I have an NSMutableOrdered set that holds two types of objects (that I created), Pieces and Others.</p> <p>Piece and Other both have their isEqual method overridden like so:</p> <p>Piece:</p> <pre><code>- (BOOL)isEqual:(Piece *)object { if (([title isEqualToString:[object title]]) &amp;&amp; ([composer isEqualToString:[object composer]]) &amp;&amp; (major == [object major]) &amp;&amp; (tempo == [object tempo]) &amp;&amp; (pieceKey == [object pieceKey]) &amp;&amp; (pieceTime == [object pieceTime])) return YES; else return NO; } </code></pre> <p>Other:</p> <pre><code>- (BOOL)isEqual:(Other *)object { if (([title isEqualToString:[object title]]) &amp;&amp; ([subTitle isEqualToString:[object subTitle]]) &amp;&amp; ([description isEqualToString:[object description]]) &amp;&amp; (otherTime == [object otherTime])) return YES; else return NO; } </code></pre> <p>I also override the hash of both classes to create a unique hash for each instance (by getting the int value of the ivars and adding them).</p> <p>In my app, An Other is removed from the set, then when I try to add a piece to the set, I get this:</p> <pre><code>-[Other isEqual:]: message sent to deallocated instance 0x80d5680 </code></pre> <p>here is the hash method:</p> <pre><code>- (NSUInteger)hash { NSUInteger prime = 31; NSUInteger result = 1; result = prime * (result + [title intValue]); result = prime * (result + [composer intValue]); result = prime * (result + major); result = prime * (result + tempo); result = prime * (result + pieceKey); result = prime * (result + pieceTime); return result; } </code></pre> <p>If anybody knows why this is happening, I would really some help.</p> <p>Thanks,</p>
 

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