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<div class="titlepage"><div><div><h3 class="title">
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<a name="boost_asio.reference.uses_executor"></a><a class="link" href="uses_executor.html" title="uses_executor">uses_executor</a>
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<a class="indexterm" name="boost_asio.indexterm.uses_executor"></a>
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<p>
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The <a class="link" href="uses_executor.html" title="uses_executor"><code class="computeroutput">uses_executor</code></a>
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trait detects whether a type T has an associated executor that is convertible
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from type Executor.
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</p>
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<pre class="programlisting">template<
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typename T,
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typename <a class="link" href="Executor1.html" title="Executor requirements">Executor</a>>
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struct uses_executor :
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public false_type
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</pre>
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<p>
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Meets the BinaryTypeTrait requirements. The Asio library provides a definition
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that is derived from <code class="computeroutput">false_type</code>. A program may specialize this
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template to derive from true_type for a user-defined type T that can be constructed
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with an executor, where the first argument of a constructor has type <a class="link" href="executor_arg_t.html" title="executor_arg_t"><code class="computeroutput">executor_arg_t</code></a>
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and the second argument is convertible from type Executor.
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</p>
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<h5>
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<a name="boost_asio.reference.uses_executor.h0"></a>
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<span class="phrase"><a name="boost_asio.reference.uses_executor.requirements"></a></span><a class="link" href="uses_executor.html#boost_asio.reference.uses_executor.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/uses_executor.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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<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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