nst</span> <span class="identifier">UChar</span><span class="special">*</span> <span class="identifier">s</span><span class="special">,</span>
                          <span class="keyword">const</span> <span class="identifier">u32regex</span><span class="special">&amp;</span> <span class="identifier">e</span><span class="special">,</span>
                          <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> <span class="iden