><dt class="spec value" id="val-iter"><a href="#val-iter" class="anchor"></a><code><span class="keyword">val</span> iter : <a href="index.html#type-t">t</a> <span>&#45;&gt;</span> <span>(int <span>&#45;&gt;</span> <a href="../index.html#type-hpara">hpara</a> <span>&#45;&gt;</span> unit)</span> <span>&#45;&gt;</span> <span>(int <span>&#45;&gt;</span> <a href="../index.html#type-hpara_dll">hpara_dll</a> <span>&#45;&gt;</span> unit)</span> <span>&#45;&gt;</span> unit</code></dt><dd><p><code>iter env f f_dll</c