SEEK_END"><code class="Dv">SEEK_END</code></a></dt>
  <dd>end of file</dd>
</dl>
</div>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
  VALUES</a></h1>
<p class="Pp">Upon successful completion 0 is returned. Otherwise, -1 is
    returned and the error information in <var class="Ar">source</var> is set to
    indicate the error.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
  ALS