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<p>
<a class="indexterm" name="idm166266"></a>
A special value, similar to std::nothrow.
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<pre class="programlisting"><span class="keyword">constexpr</span> <span class="identifier">use_future_t</span> <span class="identifier">use_future</span><span class="special">;</span>
</pre>
<p>
See the documentation for <a class="link" href="use_future_t.html" title="use_future_t"><code class="computeroutput"><span class="identifier">use_future_t</span></code></a> for a usage example.
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<span><a name="asio.reference.use_future.requirements"></a></span><a class="link" href="use_future.html#asio.reference.use_future.requirements">Requirements</a>
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<p>
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/use_future.hpp</code>
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<p>
<span class="emphasis"><em>Convenience header: </em></span>None
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