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<title>Missing Features (libffi: the portable foreign function interface library)</title>
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<span id="Missing-Features-1"></span><h2 class="chapter">4 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 “raw” API is undocumented.
</li><li> The Go API is undocumented.
</li></ul>
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