__ptr64</tt>,
<tt>__declspec(align(n))</tt> and <tt>#pragma&nbsp;pack</tt>.</li>

<li>All other GCC/MSVC-specific attributes are ignored.</li>

</ul>
<p>
The following C&nbsp;types are pre-defined by the C&nbsp;parser (like
a <tt>typedef</tt>, except re-declarations will be ignored):
</p>
<ul>

<li>Vararg handling: <tt>va_list</tt>, <tt>__builtin_va_list</tt>,
<tt>__gnuc_va_list</tt>.</li>

<li>From <tt>&lt;stddef.h&gt;</tt>: <tt>ptrdiff_t</tt>,
<tt>size_t</tt>, <tt>wchar_t</tt>.</li>

<li>From <tt>&lt;stdi