APIs that take &quot;in/out&quot;
parameters (and default-constructible &quot;out&quot; parameters) by pointer.</p>

    <h4>Declaration</h4>    
    <code class="language-swift">func withUnsafePointer&lt;T, Result&gt;(inout arg: T, @noescape _ body: UnsafePointer&lt;T&gt; throws -&gt; Result) rethrows -&gt; Result</code>
    
    
</div></div>
</div>
