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| <a name="boost_asio.reference.has_service"></a><a class="link" href="has_service.html" title="has_service">has_service</a> |
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| <p> |
| <a class="indexterm" name="id1155067"></a> |
| </p> |
| <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> |
| <span class="keyword">typename</span> <a class="link" href="Service.html" title="Service requirements">Service</a><span class="special">></span> |
| <span class="keyword">bool</span> <span class="identifier">has_service</span><span class="special">(</span> |
| <span class="identifier">io_service</span> <span class="special">&</span> <span class="identifier">ios</span><span class="special">);</span> |
| </pre> |
| <p> |
| This function is used to determine whether the <a class="link" href="io_service.html" title="io_service"><code class="computeroutput"><span class="identifier">io_service</span></code></a> contains a service object |
| corresponding to the given service type. |
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| <a name="boost_asio.reference.has_service.parameters"></a><h5> |
| <a name="id1155171"></a> |
| <a class="link" href="has_service.html#boost_asio.reference.has_service.parameters">Parameters</a> |
| </h5> |
| <div class="variablelist"> |
| <p class="title"><b></b></p> |
| <dl> |
| <dt><span class="term">ios</span></dt> |
| <dd><p> |
| The <a class="link" href="io_service.html" title="io_service"><code class="computeroutput"><span class="identifier">io_service</span></code></a> |
| object that owns the service. |
| </p></dd> |
| </dl> |
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| <a name="boost_asio.reference.has_service.return_value"></a><h5> |
| <a name="id1155227"></a> |
| <a class="link" href="has_service.html#boost_asio.reference.has_service.return_value">Return Value</a> |
| </h5> |
| <p> |
| A boolean indicating whether the <a class="link" href="io_service.html" title="io_service"><code class="computeroutput"><span class="identifier">io_service</span></code></a> contains the service. |
| </p> |
| <a name="boost_asio.reference.has_service.requirements"></a><h5> |
| <a name="id1155267"></a> |
| <a class="link" href="has_service.html#boost_asio.reference.has_service.requirements">Requirements</a> |
| </h5> |
| <p> |
| <span class="bold"><strong>Header: </strong></span><code class="literal">boost/asio/io_service.hpp</code> |
| </p> |
| <p> |
| <span class="bold"><strong>Convenience header: </strong></span><code class="literal">boost/asio.hpp</code> |
| </p> |
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| <td align="right"><div class="copyright-footer">Copyright © 2003 - 2010 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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