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<title>Outro – De Re NSObject</title>
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<meta name="twitter:description" content="Your NSObject @property is in another castle This guide did not tell you how to reference other objects and maintain those relationships using a @property though. That’s the topic of another whole guide called De Re @property that explains, how @property and their attributes handle object relationships automatically like: @interface...">
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<h4>Nat!</h4>
<p>Senior Mull</p>
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<h2>De Re NSObject <div style="font-size:10px; display: inline-block;">0.0.1</div> <a href="feed.xml"><img class="inline-img" src='images/feed-icon-28x28.png'></a></h2>
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<h6>© 2025 by Nat!, Mulle kybernetiK. All rights reserved.</h6>
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<li class="no-bullet"><a class="internal-link" href="/de-re-nsobject/intro.html" title="Intro">Intro</a>
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<li class="no-bullet"><a class="internal-link" href="/de-re-nsobject/life-and-death.html" title="NSObject: +alloc / -dealloc">NSObject: +alloc / -dealloc</a>
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<li class="no-bullet"><a class="internal-link" href="/de-re-nsobject/outro.html" title="Outro">Outro</a>
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<h5> Or read it like a <a href="book.html"><b>book</b></a>.</h6>
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<h2>De Re NSObject <div style="font-size:10px; display: inline-block;">0.0.1</div> <a href="feed.xml"><img class="inline-img" src='images/feed-icon-28x28.png'></a></h2>
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<h6>© 2025 by Nat!, Mulle kybernetiK. All rights reserved.</h6>
<p>
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<article>
<h1>Outro</h1>
<div>
<h2 id="your-nsobject-property-is-in-another-castle">Your NSObject @property is in another castle</h2>
<p>This guide did not tell you how to reference other objects and maintain those
relationships using a <code class="language-plaintext highlighter-rouge">@property</code> though.</p>
<p>That’s the topic of another whole guide called
<a href="//www.mulle-kybernetik.com/de-re-property">De Re @property</a> that explains,
how @property and their attributes handle object relationships
automatically like:</p>
<div class="language-objc highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="k">@interface</span> <span class="nc">Document</span> <span class="p">:</span> <span class="nc">NSObject</span>
<span class="k">@property</span><span class="p">(</span><span class="n">retain</span><span class="p">)</span> <span class="n">NSString</span> <span class="o">*</span><span class="n">title</span><span class="p">;</span>
<span class="n">automatic</span> <span class="n">retain</span><span class="o">/</span><span class="n">release</span>
<span class="k">@property</span><span class="p">(</span><span class="n">copy</span><span class="p">)</span> <span class="n">NSString</span> <span class="o">*</span><span class="n">text</span><span class="p">;</span>
<span class="n">copy</span><span class="o">/</span><span class="n">release</span>
<span class="k">@end</span>
</code></pre></div></div>
<h2 id="differences-to-apple-objective-c">Differences to Apple Objective-C</h2>
<p>Now, you might be curious about how mulle-objc’s NSObject differs from its
counterpart in Apple’s Objective-C. There are several key distinctions:</p>
<ol>
<li>Memory Management: While Apple’s implementation has moved towards Automatic
Reference Counting (ARC), mulle-objc sticks to explicit retain/release
counting. This gives you more control over object lifecycles, albeit with
increased responsibility.</li>
<li>Platform Independence: The runtime messaging system in mulle-objc is designed
for cross-platform compatibility, unlike Apple’s version which is more
tightly coupled to specific platforms.</li>
<li>Instance Variable Handling: mulle-objc uses a different memory layout for
instance variables, which can impact how you structure your classes and
manage object state.</li>
</ol>
<h2 id="ai-tip">AI Tip</h2>
<p>You can ask any AI like <a href="https://perplexity.ai">perplexity.ai</a>, just tell it
that you are using “mulle-objc” instead of Apple “Objective-C”.
Most of them are quite good at explaining the concepts.</p>
<h2 id="further-reading">Further reading</h2>
<p>Otherwise you could try any of the following sources given in <a href="https://mulle-objc.github.io/De-Re-mulle-objc/mydoc_links.html">De Re mulle-objc</a> or check out the
project page <a href="https://mulle-objc.github.io/">mulle-objc</a></p>
</div>
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