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  26 <div class="titlepage"><div><div><h3 class="title">
  27 <a name="boost_asio.reference.co_spawn"></a><a class="link" href="co_spawn.html" title="co_spawn">co_spawn</a>
  28 </h3></div></div></div>
  29 <p>
  30         <a class="indexterm" name="boost_asio.indexterm.co_spawn"></a>
  31 Spawn a new thread of execution.
  32       </p>
  33 <pre class="programlisting">template&lt;
  34     typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>,
  35     typename F,
  36     typename CompletionToken = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>&gt;
  37 <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> <a class="link" href="co_spawn/overload1.html" title="co_spawn (1 of 2 overloads)">co_spawn</a>(
  38     const Executor &amp; ex,
  39     F &amp;&amp; f,
  40     CompletionToken &amp;&amp; token = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>,
  41     typename enable_if&lt; is_executor&lt; Executor &gt;::value &gt;::type *  = 0);
  42   <span class="emphasis"><em>&#187; <a class="link" href="co_spawn/overload1.html" title="co_spawn (1 of 2 overloads)">more...</a></em></span>
  43
  44 template&lt;
  45     typename ExecutionContext,
  46     typename F,
  47     typename CompletionToken = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>&gt;
  48 <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> <a class="link" href="co_spawn/overload2.html" title="co_spawn (2 of 2 overloads)">co_spawn</a>(
  49     ExecutionContext &amp; ctx,
  50     F &amp;&amp; f,
  51     CompletionToken &amp;&amp; token = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>,
  52     typename enable_if&lt; is_convertible&lt; ExecutionContext &amp;, execution_context &amp; &gt;::value &gt;::type *  = 0);
  53   <span class="emphasis"><em>&#187; <a class="link" href="co_spawn/overload2.html" title="co_spawn (2 of 2 overloads)">more...</a></em></span>
  54 </pre>
  55 <h5>
  56 <a name="boost_asio.reference.co_spawn.h0"></a>
  57         <span class="phrase"><a name="boost_asio.reference.co_spawn.requirements"></a></span><a class="link" href="co_spawn.html#boost_asio.reference.co_spawn.requirements">Requirements</a>
  58       </h5>
  59 <p>
  60         <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/co_spawn.hpp</code>
  61       </p>
  62 <p>
  63         <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code>
  64       </p>
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