gnatures clearer</p></dd></dl><dl><dt class="spec value" id="val-length"><a href="#val-length" class="anchor"></a><code><span class="keyword">val</span> length : int</code></dt><dd><p>The length of an integer in bits (<code>Sys.int_size</code>)</p></dd></dl><dl><dt class="spec value" id="val-back"><a href="#val-back" class="anchor"></a><code><span class="keyword">val</span> back : int</code></dt><dd><p>The last index in an integer</p></dd></dl><dl><dt class="spec value" id="val-check_index"><a href="#val-ch