ype-t">t</a></code></dt><dd><p>Same as <a href="index.html#val-of_string"><code>of_string</code></a> but on the substring starting at <code>pos</code> of length <code>len</code>.</p></dd></dl><dl><dt class="spec value" id="val-to_string"><a href="#val-to_string" class="anchor"></a><code><span class="keyword">val</span> to_string : <span>?&#8288;base:int</span> <span>&#45;&gt;</span> <span>?&#8288;unsigned:bool</span> <span>&#45;&gt;</span> <span>?&#8288;force_width:bool</span> <span>&#45;&gt;</span> <span>?