  exit<span class="op">(</span><span class="dv">1</span><span class="op">);</span></span>
<span id="cb25-43"><a href="flocking.html#cb25-43"></a>    <span class="op">}</span></span>
<span id="cb25-44"><a href="flocking.html#cb25-44"></a></span>
<span id="cb25-45"><a href="flocking.html#cb25-45"></a>    printf<span class="op">(</span><span class="st">&quot;Unlocked.</span><span class="sc">\n</span><span class="st">&quot;</span><span class="op">);</span></span>
<span id="cb25-46"><a href="flocking.html#cb25-4