pan><span class="special">&gt;&amp;</span> <span class="identifier">sub</span><span class="special">)</span><span class="keyword">const</span><span class="special">;</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">charT</span><span class="special">&gt;</span>
<span class="identifier">string_type</span> <span class="identifier">str</span><span class="special">(</span><span class="keyword">const</span> <span class="ident