expr">expr</a> <span class="arrow">&#45;&gt;</span></span> <span><a href="../../../../../Ident/index.html#type-t">Ident.t</a> list</span></span></code></div><div class="spec-doc"><p><code>vars_of_expr e</code> should return the list of variables occuring in expression <code>e</code>.</p></div></div><div class="odoc-spec"><div class="spec value anchored" id="val-pp_expr"><a href="#val-pp_expr" class="anchor"></a><code><span><span class="keyword">val</span> pp_expr : <span><span class="xref-unresolved">Stdlib