default_completion_token.html
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<a name="asio.reference.default_completion_token"></a><a class="link" href="default_completion_token.html" title="default_completion_token">default_completion_token</a>
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<p>
Traits type used to determine the default completion token type associated
with a type (such as an executor).
</p>
<pre class="programlisting">template<
typename T>
struct default_completion_token
</pre>
<h5>
<a name="asio.reference.default_completion_token.h0"></a>
<span><a name="asio.reference.default_completion_token.types"></a></span><a class="link" href="default_completion_token.html#asio.reference.default_completion_token.types">Types</a>
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Name
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Description
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<p>
<a class="link" href="default_completion_token/type.html" title="default_completion_token::type"><span class="bold"><strong>type</strong></span></a>
</p>
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<td>
<p>
If T has a nested type default_completion_token_type, T::default_completion_token_type.
Otherwise the typedef type is not defined.
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<p>
A program may specialise this traits type if the <code class="computeroutput">T</code> template
parameter in the specialisation is a user-defined type.
</p>
<p>
Specialisations of this trait may provide a nested typedef <code class="computeroutput">type</code>,
which is a default-constructible completion token type.
</p>
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<span><a name="asio.reference.default_completion_token.requirements"></a></span><a class="link" href="default_completion_token.html#asio.reference.default_completion_token.requirements">Requirements</a>
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<p>
<span class="emphasis"><em>Header: </em></span><code class="literal">asio/async_result.hpp</code>
</p>
<p>
<span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
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<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M.
Kohlhoff<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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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