an asynchronous operation to wait for a signal to be delivered.
</p>
<pre class="programlisting">template<
- typename <a class="link" href="../SignalHandler.html" title="Signal handler requirements">SignalHandler</a>>
+ typename <a class="link" href="../SignalHandler.html" title="Signal handler requirements">SignalHandler</a> = <a class="link" href="../asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>>
<a class="link" href="../asynchronous_operations.html#boost_asio.reference.asynchronous_operations.automatic_deduction_of_initiating_function_return_type"><span class="emphasis"><em>DEDUCED</em></span></a> async_wait(
- SignalHandler && handler);
+ SignalHandler && handler = <a class="link" href="../asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>);
</pre>
<p>
This function may be used to initiate an asynchronous wait against the