 class="code">true</code> if the given queue is empty, <code class="code">false</code> otherwise.<br>
</div>

<pre><span id="VALlength"><span class="keyword">val</span> length</span> : <code class="type">'a <a href="Queue.html#TYPEt">t</a> -> int</code></pre><div class="info ">
Return the number of elements in a queue.<br>
</div>

<pre><span id="VALiter"><span class="keyword">val</span> iter</span> : <code class="type">('a -> unit) -> 'a <a href="Queue.html#TYPEt">t</a> -> unit</code></pre><div class="info 