nDomain/Mem/index.html#type-t">BO.BufferOverrunDomain.Mem.t</a> <span class="arrow">&#45;&gt;</span></span>
  <a href="../../BO/Itv/index.html#type-t">BO.Itv.t</a></span></code></div><div class="spec-doc"><p>Given a string of length n and an optional starting index i (0 by default), return itv <code>0, n_u-i_l</code></p></div></div><div class="odoc-spec"><div class="spec module-type anchored" id="module-type-S"><a href="#module-type-S" class="anchor"></a><code><span><span class="keyword">module</span> <span