pan> <a href="#type-pointer">pointer</a></span> <span class="arrow">&#45;&gt;</span></span> <span>int <span class="arrow">&#45;&gt;</span></span> <span><span>(<span class="type-var">'a</span>, <span class="type-var">'b</span>)</span> <a href="#type-pointer">pointer</a></span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-(-@)"><a href="#val-(-@)" class="anchor"></a><code><span><span class="keyword">val</span> (-@) : <span><span><span>(<span class="type-var">'a</spa