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<div class="titlepage"><div><div><h3 class="title">
<a name="boost_asio.reference.handler_type"></a><a class="link" href="handler_type.html" title="handler_type">handler_type</a>
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<p>
Default handler type traits provided for all handlers.
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <a class="link" href="Handler.html" title="Handlers">Handler</a><span class="special">,</span>
<span class="keyword">typename</span> <span class="identifier">Signature</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">handler_type</span>
</pre>
<h5>
<a name="boost_asio.reference.handler_type.h0"></a>
<span class="phrase"><a name="boost_asio.reference.handler_type.types"></a></span><a class="link" href="handler_type.html#boost_asio.reference.handler_type.types">Types</a>
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Name
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Description
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<p>
<a class="link" href="handler_type/type.html" title="handler_type::type"><span class="bold"><strong>type</strong></span></a>
</p>
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<p>
The handler type for the specific signature.
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<p>
The <a class="link" href="handler_type.html" title="handler_type"><code class="computeroutput"><span class="identifier">handler_type</span></code></a>
traits class is used for determining the concrete handler type to be used
for an asynchronous operation. It allows the handler type to be determined
at the point where the specific completion handler signature is known.
</p>
<p>
This template may be specialised for user-defined handler types.
</p>
<h5>
<a name="boost_asio.reference.handler_type.h1"></a>
<span class="phrase"><a name="boost_asio.reference.handler_type.requirements"></a></span><a class="link" href="handler_type.html#boost_asio.reference.handler_type.requirements">Requirements</a>
</h5>
<p>
<span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/handler_type.hpp</code>
</p>
<p>
<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 &#169; 2003-2015 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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