hen applying this trait to template classes. If <code class="computeroutput"><span class="keyword">operator</span><span class="special">%=</span></code>
            is defined but does not bind for a given template type, it is still detected
            by the trait which returns <code class="computeroutput"><span class="keyword">true</span></code>
            instead of <code class="computeroutput"><span class="keyword">false</span></code>. Example:
<pre class="programlisting"><span class="preprocessor">#i