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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="boost_asio.reference.co_spawn"></a><a class="link" href="co_spawn.html" title="co_spawn">co_spawn</a>
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</h3></div></div></div>
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<p>
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<a class="indexterm" name="boost_asio.indexterm.co_spawn"></a>
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Spawn a new coroutined-based thread
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of execution.
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</p>
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<pre class="programlisting">template<
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typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>,
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typename T,
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typename <a class="link" href="Executor1.html" title="Executor requirements">AwaitableExecutor</a>,
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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>>
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<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 6 overloads)">co_spawn</a>(
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const Executor & ex,
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awaitable< T, AwaitableExecutor > a,
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CompletionToken && token = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>,
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typename constraint< (is_executor< Executor >::value||execution::is_executor< Executor >::value)&&is_convertible< Executor, AwaitableExecutor >::value >::type = 0);
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<span class="emphasis"><em>» <a class="link" href="co_spawn/overload1.html" title="co_spawn (1 of 6 overloads)">more...</a></em></span>
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template<
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typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>,
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typename <a class="link" href="Executor1.html" title="Executor requirements">AwaitableExecutor</a>,
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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>>
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<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 6 overloads)">co_spawn</a>(
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const Executor & ex,
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awaitable< void, AwaitableExecutor > a,
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CompletionToken && token = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>,
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typename constraint< (is_executor< Executor >::value||execution::is_executor< Executor >::value)&&is_convertible< Executor, AwaitableExecutor >::value >::type = 0);
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<span class="emphasis"><em>» <a class="link" href="co_spawn/overload2.html" title="co_spawn (2 of 6 overloads)">more...</a></em></span>
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template<
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typename ExecutionContext,
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typename T,
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typename <a class="link" href="Executor1.html" title="Executor requirements">AwaitableExecutor</a>,
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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>>
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<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/overload3.html" title="co_spawn (3 of 6 overloads)">co_spawn</a>(
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ExecutionContext & ctx,
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awaitable< T, AwaitableExecutor > a,
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CompletionToken && token = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>,
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typename constraint< is_convertible< ExecutionContext &, execution_context & >::value &&is_convertible< typename ExecutionContext::executor_type, AwaitableExecutor >::value >::type = 0);
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<span class="emphasis"><em>» <a class="link" href="co_spawn/overload3.html" title="co_spawn (3 of 6 overloads)">more...</a></em></span>
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template<
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typename ExecutionContext,
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typename <a class="link" href="Executor1.html" title="Executor requirements">AwaitableExecutor</a>,
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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>>
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<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/overload4.html" title="co_spawn (4 of 6 overloads)">co_spawn</a>(
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ExecutionContext & ctx,
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awaitable< void, AwaitableExecutor > a,
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CompletionToken && token = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>,
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typename constraint< is_convertible< ExecutionContext &, execution_context & >::value &&is_convertible< typename ExecutionContext::executor_type, AwaitableExecutor >::value >::type = 0);
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<span class="emphasis"><em>» <a class="link" href="co_spawn/overload4.html" title="co_spawn (4 of 6 overloads)">more...</a></em></span>
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template<
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typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>,
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typename F,
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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>>
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<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/overload5.html" title="co_spawn (5 of 6 overloads)">co_spawn</a>(
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const Executor & ex,
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F && f,
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CompletionToken && token = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>,
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typename constraint< is_executor< Executor >::value||execution::is_executor< Executor >::value >::type = 0);
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<span class="emphasis"><em>» <a class="link" href="co_spawn/overload5.html" title="co_spawn (5 of 6 overloads)">more...</a></em></span>
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template<
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typename ExecutionContext,
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typename F,
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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>>
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<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/overload6.html" title="co_spawn (6 of 6 overloads)">co_spawn</a>(
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ExecutionContext & ctx,
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F && f,
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CompletionToken && token = <a class="link" href="asynchronous_operations.html#boost_asio.reference.asynchronous_operations.default_completion_tokens"><span class="emphasis"><em>DEFAULT</em></span></a>,
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typename constraint< is_convertible< ExecutionContext &, execution_context & >::value >::type = 0);
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<span class="emphasis"><em>» <a class="link" href="co_spawn/overload6.html" title="co_spawn (6 of 6 overloads)">more...</a></em></span>
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</pre>
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<h5>
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<a name="boost_asio.reference.co_spawn.h0"></a>
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<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>
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</h5>
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<p>
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<span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/co_spawn.hpp</code>
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</p>
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<p>
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<span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code>
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</p>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2021 Christopher
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M. Kohlhoff<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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</p>
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