special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">a</span> <span class="special">+</span> <span class="identifier">delta</span><span class="special">);</span>
</pre>
<p>
      Will work just fine, with the <code class="computeroutput"><span class="identifier">a</span> <span class="special">+</span> <span class="identifier">delta</span></code> expression
      template argument getting converted to an <code class="computeroutput"><span class="identifier