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286 lines
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<title>execution::relationship_t</title>
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table>
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<a accesskey="p" href="execution__relationship.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="execution__relationship_t/continuation.html"><img src="../../next.png" alt="Next"></a>
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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="asio.reference.execution__relationship_t"></a><a class="link" href="execution__relationship_t.html" title="execution::relationship_t">execution::relationship_t</a>
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</h3></div></div></div>
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<p>
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<a class="indexterm" name="asio.indexterm.execution__relationship_t"></a>
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</p>
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<p>
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A property to describe whether submitted tasks represent continuations of
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the calling context.
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</p>
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<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">relationship_t</span>
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</pre>
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<h5>
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<a name="asio.reference.execution__relationship_t.h0"></a>
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<span><a name="asio.reference.execution__relationship_t.types"></a></span><a class="link" href="execution__relationship_t.html#asio.reference.execution__relationship_t.types">Types</a>
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</h5>
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<div class="informaltable"><table class="table">
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<thead><tr>
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Name
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Description
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</tr></thead>
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<p>
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<a class="link" href="execution__relationship_t__continuation_t.html" title="execution::relationship_t::continuation_t"><span class="bold"><strong>continuation_t</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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A sub-property that indicates that the executor represents a continuation
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of the calling context.
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</p>
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</td>
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<p>
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<a class="link" href="execution__relationship_t__fork_t.html" title="execution::relationship_t::fork_t"><span class="bold"><strong>fork_t</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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A sub-property that indicates that the executor does not represent
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a continuation of the calling context.
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</p>
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</td>
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<td>
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<p>
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<a class="link" href="execution__relationship_t/polymorphic_query_result_type.html" title="execution::relationship_t::polymorphic_query_result_type"><span class="bold"><strong>polymorphic_query_result_type</strong></span></a>
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</p>
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</td>
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<td>
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The type returned by queries against an any_executor.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h5>
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<a name="asio.reference.execution__relationship_t.h1"></a>
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<span><a name="asio.reference.execution__relationship_t.member_functions"></a></span><a class="link" href="execution__relationship_t.html#asio.reference.execution__relationship_t.member_functions">Member
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Functions</a>
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</h5>
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<div class="informaltable"><table class="table">
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Name
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Description
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</tr></thead>
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<a class="link" href="execution__relationship_t/relationship_t.html" title="execution::relationship_t::relationship_t"><span class="bold"><strong>relationship_t</strong></span></a> <span class="silver">[constructor]</span>
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</p>
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</td>
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<td>
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Default constructor. <br> <span class="silver"> —</span><br> Construct from a sub-property
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value.
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</p>
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</td>
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</tr></tbody>
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</table></div>
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<h5>
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<a name="asio.reference.execution__relationship_t.h2"></a>
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<span><a name="asio.reference.execution__relationship_t.data_members"></a></span><a class="link" href="execution__relationship_t.html#asio.reference.execution__relationship_t.data_members">Data Members</a>
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</h5>
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<div class="informaltable"><table class="table">
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<colgroup>
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<col>
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<thead><tr>
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Name
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</th>
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<th>
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Description
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</p>
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</th>
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</tr></thead>
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<a class="link" href="execution__relationship_t/continuation.html" title="execution::relationship_t::continuation"><span class="bold"><strong>continuation</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<p>
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A special value used for accessing the relationship_t::continuation_t
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property.
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</p>
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</td>
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</tr>
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<td>
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<p>
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<a class="link" href="execution__relationship_t/fork.html" title="execution::relationship_t::fork"><span class="bold"><strong>fork</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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A special value used for accessing the relationship_t::fork_t property.
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</p>
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</td>
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</tr>
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<td>
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<p>
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<a class="link" href="execution__relationship_t/is_applicable_property_v.html" title="execution::relationship_t::is_applicable_property_v"><span class="bold"><strong>is_applicable_property_v</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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The relationship_t property applies to executors, senders, and
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schedulers.
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</p>
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</td>
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</tr>
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<td>
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<p>
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<a class="link" href="execution__relationship_t/is_preferable.html" title="execution::relationship_t::is_preferable"><span class="bold"><strong>is_preferable</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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The top-level relationship_t property cannot be preferred.
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</p>
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</tr>
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<p>
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<a class="link" href="execution__relationship_t/is_requirable.html" title="execution::relationship_t::is_requirable"><span class="bold"><strong>is_requirable</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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The top-level relationship_t property cannot be required.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h5>
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<a name="asio.reference.execution__relationship_t.h3"></a>
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<span><a name="asio.reference.execution__relationship_t.friends"></a></span><a class="link" href="execution__relationship_t.html#asio.reference.execution__relationship_t.friends">Friends</a>
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</h5>
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<div class="informaltable"><table class="table">
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<colgroup>
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<col>
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<col>
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</colgroup>
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<thead><tr>
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<p>
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Name
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</th>
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<th>
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Description
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</p>
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</tr></thead>
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<p>
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<a class="link" href="execution__relationship_t/operator_not__eq_.html" title="execution::relationship_t::operator!="><span class="bold"><strong>operator!=</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Compare property values for inequality.
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</p>
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</td>
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<p>
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<a class="link" href="execution__relationship_t/operator_eq__eq_.html" title="execution::relationship_t::operator=="><span class="bold"><strong>operator==</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Compare property values for equality.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h5>
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<a name="asio.reference.execution__relationship_t.h4"></a>
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<span><a name="asio.reference.execution__relationship_t.requirements"></a></span><a class="link" href="execution__relationship_t.html#asio.reference.execution__relationship_t.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">asio/execution/relationship.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">asio/execution.hpp</code>
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</p>
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</div>
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<div class="copyright-footer">Copyright © 2003-2023 Christopher 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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</div>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="execution__relationship.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="execution__relationship_t/continuation.html"><img src="../../next.png" alt="Next"></a>
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