="anchor"></a><code><span class="keyword">type</span> pair</code><code> = <a href="index.html#type-t">t</a> * <a href="index.html#type-t">t</a></code></dt></dl><div><div class="spec include"><div class="doc"><dl><dt class="spec value" id="val-compare_pair"><a href="#val-compare_pair" class="anchor"></a><code><span class="keyword">val</span> compare_pair : <a href="index.html#type-pair">pair</a> <span>&#45;&gt;</span> <a href="index.html#type-pair">pair</a> <span>&#45;&gt;</span> int</code></dt><dt class="sp