>IR.Exp.t</a> <span>&#45;&gt;</span> bool</code></dt><dt class="spec value" id="val-check_dereference_error"><a href="#val-check_dereference_error" class="anchor"></a><code><span class="keyword">val</span> check_dereference_error : <a href="../../IR/Tenv/index.html#type-t">IR.Tenv.t</a> <span>&#45;&gt;</span> <a href="../../IR/Procdesc/index.html#type-t">IR.Procdesc.t</a> <span>&#45;&gt;</span> <span><a href="../Prop/index.html#type-normal">Prop.normal</a> <a href="../Prop/index.html#type-t">Prop.t</a></spa