ture_t"></a> 
Construct
          using default-constructed allocator.
        </p>
<pre class="programlisting">constexpr <a class="link" href="use_future_t/overload1.html" title="use_future_t::use_future_t (1 of 2 overloads)">use_future_t</a>();
  <span class="emphasis"><em>&#187; <a class="link" href="use_future_t/overload1.html" title="use_future_t::use_future_t (1 of 2 overloads)">more...</a></em></span>
</pre>
<p>
          Construct using specified allocator.
        </p>
<pre class="programlisting">e