;</span><span class="keyword">class</span> <span class="identifier">charT</span><span class="special">&gt;</span>
   <span class="identifier">string_type</span> <a class="link" href="match_results.html#boost_regex.match_results.str">str</a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">charT</span><span class="special">*</span> <span class="identifier">sub</span><span class="special">)</span><span class="keyword">const</span><span class="special">;</span>
   <span 