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POIncompatible block pointer types using typedef
 

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    <p>For a day now I've been trying to get a piece of code working to help me handle find-and-create for CoreData in a nice way (from this article I found <a href="http://emplementation.blogspot.nl/2011/12/importing-data-into-core-data-while.html" rel="nofollow">http://emplementation.blogspot.nl/2011/12/importing-data-into-core-data-while.html</a>). I ended up working with code blocks which I've never done before. </p> <p>Somehow I can't fix the following error which occurs because something is different in my typedef from what I try to define in my function. I think I understand it has something to do with the block being defined as __strong in the typedef but differently in my implementation file.</p> <p>Error</p> <blockquote> <p>Incompatible block pointer types initializing '_<em>strong objectOperationBlock' (aka 'void (^</em>_strong)(NSManagedObjectContext *_<em>strong, NSDictionary *</em>_strong, NSManagedObject *_<em>strong)') with an expression of type 'void (^)(NSManagedObject *</em>_strong, NSDictionary *_<em>strong, NSManagedObject *</em>_strong)'</p> </blockquote> <p>MyViewController.h</p> <pre><code>typedef void (^objectOperationBlock)(NSManagedObjectContext *context, NSDictionary *hostObjectData, NSManagedObject *localManagedObject); </code></pre> <p>MyViewController.m</p> <pre><code>objectOperationBlock matchedBlock = ^(NSManagedObject *context, NSDictionary *hostObjectData, NSManagedObject *localManagedObject){ NSLog(@"Dosomething"); }; </code></pre> <p>In all my attempts I've found out that this could will build (but it's not using the typedef)</p> <pre><code>void (^matchedBlock)(NSManagedObject*, NSDictionary*, NSManagedObject*) = ^(NSManagedObject *context, NSDictionary *hostObjectData, NSManagedObject *localManagedObject){ NSLog(@"Dosomething"); }; </code></pre> <p>Thanks in advance for all your help!</p>
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      1. USRichard J. Ross III
 

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