  <span class="identifier">size_type</span> <span class="identifier">index</span><span class="special">,</span>
    <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">t</span><span class="special">,</span>
    <span class="identifier">size_type</span> <span class="identifier">index_str</span><span class="special">,</span>
    <span class="identifier">size_type</span> <span class="identifier">count</span> <span class="special">=</sp