e-var">'b</span>, <span class="type-var">'c</span>)</span> <a href="#type-structured">structured</a></span>)</span> <a href="#type-field">field</a></span> <span class="arrow">&#45;&gt;</span></span>
  <span><span class="type-var">'a</span> <a href="#type-ptr">ptr</a></span></span></code></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-offsetof"><a href="#val-offsetof" class="anchor"></a><code><span><span class="keyword">val</span> offsetof : <span><span><span>(<span class="type-va