ss="Fa" style="white-space: nowrap;">int
    whence</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">The function
    <a class="permalink" href="#zip_source_seek_write"><code class="Fn" id="zip_source_seek_write">zip_source_seek_write</code></a>()
    sets the current write offset for <var class="Fa">source</var>. Just like in
    <a class="Xr" href="http://pubs.opengroup.org/onlinepubs/9699919799/function