l">(</span><span class="keyword">const</span> <span class="identifier">size_type</span> nrequested_size<span class="special">,</span> 
              <span class="keyword">const</span> <span class="identifier">size_type</span> nnext_size <span class="special">=</span> <span class="number">32</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">size_type</span> nmax_size <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span 