i class="old">   if (listObjectsAtLocation(player) == 0)</li>
<li class="old">   {</li>
<li class="old">      printf("You are empty-handed.\n");</li>
<li class="old">   }</li>
<li class="new"><span class="old">   </span>return true;</li>
<li class="old">}</li>
</ol>
</td>
</tr></table>
<p>
Same thing for the module we added in the previous chapter.
</p>
<table class="code"><tr>
<th>openclose.h</th>
</tr><tr>
<td>
<ol>
<li class="new">extern bool executeOpen(void);</li>
<li class="new">extern bool executeClo