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POExample of [NSDictionary getObjects:andKeys:]
 

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    <p>I couldn't find a working example of the method <code>[NSDictionary getObjects:andKeys:]</code>. The only <a href="http://www.mail-archive.com/cocoa-dev@lists.apple.com/msg24959.html" rel="noreferrer">example</a> I could find, doesn't compile. I provided the errors/warnings here in case someone is searching for them.</p> <p>The reason I was confused is because most methods on NSDictionary return an <code>NSArray</code>. However, in the <a href="http://developer.apple.com/mac/library/documentation/cocoa/reference/foundation/Classes/NSDictionary_Class/Reference/Reference.html#//apple_ref/occ/instm/NSDictionary/getObjects:andKeys:" rel="noreferrer">documentation</a> it states that the out variables of this method are returned as C arrays.</p> <p>Here are the error messages/warnings you might get if you follow the linked example:</p> <pre><code>NSDictionary *myDictionary = ...; id objects[]; // Error: Array size missing in 'objects' id keys[]; // Error: Array size missing in 'keys' [myDictionary getObjects:&amp;objects andKeys:&amp;keys]; for (int i = 0; i &lt; count; i++) { id obj = objects[i]; id key = keys[i]; } </code></pre> <p>.</p> <pre><code>NSDictionary *myDictionary = ...; NSInteger count = [myDictionary count]; id objects[count]; id keys[count]; [myDictionary getObjects:&amp;objects andKeys:&amp;keys]; // Warning: Passing argument 1 of 'getObjects:andKeys:' from incompatible pointer type. for (int i = 0; i &lt; count; i++) { id obj = objects[i]; id key = keys[i]; } </code></pre> <p>I'll provide a working solution as an answer to this question.</p>
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