rr">arr</a> <span class="arrow">&#45;&gt;</span></span> int</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-col_num"><a href="#val-col_num" class="anchor"></a><code><span><span class="keyword">val</span> col_num : <span><a href="#type-arr">arr</a> <span class="arrow">&#45;&gt;</span></span> int</span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-row"><a href="#val-row" class="anchor"></a><code><span><span class="keyword">val</span