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