er">size</span><span class="special">()</span> <span class="special">+</span> <span class="identifier">init</span><span class="special">.</span><span class="identifier">size</span><span class="special">()</span></code>, a reallocation occurs first, and all
            iterators and references are invalidated. Otherwise, only the iterators
            and references from the insertion point forward are invalidated. All
            past-the-end iterators are also invalidated.
          </p>
<h7><a name="json.