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<h2 class="chapter">3 Missing Features</h2>

<p><code>libffi</code> is missing a few features.  We welcome patches to add
support for these.

     <ul>
<li>Variadic closures.

     <li>There is no support for bit fields in structures.

     <li>The closure API is

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     <li>The &ldquo;raw&rdquo; API is undocumented. 
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   <p>Note that variadic support is very new and tested on a relatively small number of platforms.

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