ial">,</span> <span class="identifier">last</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.ref.boost__json__array.insert.overload4.h2"></a>
            <span class="phrase"><a name="json.ref.boost__json__array.insert.overl