lt_of/value.html" title="Struct template value">proto::result_of::value</a>&lt; Expr &gt; <span class="special">{</span>
  <span class="special">}</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="value.html#id-1_3_34_5_39_2_1_4_5_4-bb">public member functions</a></span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <a class="link" href="../../../Expr.html" title="Concept Expr">Expr</a><span class="special">