ss="special">;</span>

    <span class="identifier">printer</span> <span class="identifier">pr</span><span class="special">;</span>
    <span class="identifier">basic_info_walker</span><span class="special">&lt;</span><span class="identifier">printer</span><span class="special">&gt;</span> <span class="identifier">walker</span><span class="special">(</span><span class="identifier">pr</span><span class="special">,</span> <span class="identifier">what</span><span class="special">.</span><span class="identifie