pan><span class="special">&lt;</span><span class="identifier">C</span><span class="special">,</span> <span class="identifier">_a</span><span class="special">&gt;</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span> <span class="comment">// calls void g(param&lt;C, _a&amp;&amp;&gt;); (ambiguous in C++03)</span>
<span class="identifier">g</span><span class="special">(</span><span class="identifier">a</span><span class="special">)</span>