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<a name="Missing-Features"></a>
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Next: <a href="Index.html#Index" accesskey="n" rel="next">Index</a>, Previous: <a href="Using-libffi.html#Using-libffi" accesskey="p" rel="prev">Using libffi</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="Index.html#Index" title="Index" rel="index">Index</a>]</p>
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<a name="Missing-Features-1"></a>
<h2 class="chapter">3 Missing Features</h2>

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

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

</li><li> The closure API is


</li><li> The &ldquo;raw&rdquo; API is undocumented.
</li></ul>

<p>Note that variadic support is very new and tested on a relatively
small number of platforms.
</p>



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