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<div class="titlepage"><div><div><h4 class="title">
<a name="asio.reference.ip__basic_resolver.query"></a><a class="link" href="query.html" title="ip::basic_resolver::query"> ip::basic_resolver::query</a>
</h4></div></div></div>
<p>
<a class="indexterm" name="id873719"></a>
The query type.
</p>
<pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">basic_resolver_query</span><span class="special"><</span> <span class="identifier">InternetProtocol</span> <span class="special">></span> <span class="identifier">query</span><span class="special">;</span>
</pre>
<a name="asio.reference.ip__basic_resolver.query.types"></a><h6>
<a name="id873781"></a>
<a class="link" href="query.html#asio.reference.ip__basic_resolver.query.types">Types</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/flags.html" title="ip::basic_resolver_query::flags"><span class="bold"><strong>flags</strong></span></a>
</p>
</td>
<td>
<p>
A bitmask type (C++ Std [lib.bitmask.types]).
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/protocol_type.html" title="ip::basic_resolver_query::protocol_type"><span class="bold"><strong>protocol_type</strong></span></a>
</p>
</td>
<td>
<p>
The protocol type associated with the endpoint query.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.ip__basic_resolver.query.member_functions"></a><h6>
<a name="id873888"></a>
<a class="link" href="query.html#asio.reference.ip__basic_resolver.query.member_functions">Member
Functions</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/basic_resolver_query.html" title="ip::basic_resolver_query::basic_resolver_query"><span class="bold"><strong>basic_resolver_query</strong></span></a>
</p>
</td>
<td>
<p>
Construct with specified service name for any protocol.
</p>
<p>
Construct with specified service name for a given protocol.
</p>
<p>
Construct with specified host name and service name for any protocol.
</p>
<p>
Construct with specified host name and service name for a given
protocol.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/hints.html" title="ip::basic_resolver_query::hints"><span class="bold"><strong>hints</strong></span></a>
</p>
</td>
<td>
<p>
Get the hints associated with the query.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/host_name.html" title="ip::basic_resolver_query::host_name"><span class="bold"><strong>host_name</strong></span></a>
</p>
</td>
<td>
<p>
Get the host name associated with the query.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/service_name.html" title="ip::basic_resolver_query::service_name"><span class="bold"><strong>service_name</strong></span></a>
</p>
</td>
<td>
<p>
Get the service name associated with the query.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="asio.reference.ip__basic_resolver.query.data_members"></a><h6>
<a name="id874067"></a>
<a class="link" href="query.html#asio.reference.ip__basic_resolver.query.data_members">Data
Members</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/address_configured.html" title="ip::basic_resolver_query::address_configured"><span class="bold"><strong>address_configured</strong></span></a>
</p>
</td>
<td>
<p>
Only return IPv4 addresses if a non-loopback IPv4 address is configured
for the system. Only return IPv6 addresses if a non-loopback IPv6
address is configured for the system.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/all_matching.html" title="ip::basic_resolver_query::all_matching"><span class="bold"><strong>all_matching</strong></span></a>
</p>
</td>
<td>
<p>
If used with v4_mapped, return all matching IPv6 and IPv4 addresses.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/canonical_name.html" title="ip::basic_resolver_query::canonical_name"><span class="bold"><strong>canonical_name</strong></span></a>
</p>
</td>
<td>
<p>
Determine the canonical name of the host specified in the query.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/numeric_host.html" title="ip::basic_resolver_query::numeric_host"><span class="bold"><strong>numeric_host</strong></span></a>
</p>
</td>
<td>
<p>
Host name should be treated as a numeric string defining an IPv4
or IPv6 address and no name resolution should be attempted.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/numeric_service.html" title="ip::basic_resolver_query::numeric_service"><span class="bold"><strong>numeric_service</strong></span></a>
</p>
</td>
<td>
<p>
Service name should be treated as a numeric string defining a port
number and no name resolution should be attempted.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/passive.html" title="ip::basic_resolver_query::passive"><span class="bold"><strong>passive</strong></span></a>
</p>
</td>
<td>
<p>
Indicate that returned endpoint is intended for use as a locally
bound socket endpoint.
</p>
</td>
</tr>
<tr>
<td>
<p>
<a class="link" href="../ip__basic_resolver_query/v4_mapped.html" title="ip::basic_resolver_query::v4_mapped"><span class="bold"><strong>v4_mapped</strong></span></a>
</p>
</td>
<td>
<p>
If the query protocol family is specified as IPv6, return IPv4-mapped
IPv6 addresses on finding no IPv6 addresses.
</p>
</td>
</tr>
</tbody>
</table></div>
<p>
The <a class="link" href="../ip__basic_resolver_query.html" title="ip::basic_resolver_query"><code class="computeroutput"><span class="identifier">ip</span><span class="special">::</span><span class="identifier">basic_resolver_query</span></code></a> class template
describes a query that can be passed to a resolver.
</p>
<a name="asio.reference.ip__basic_resolver.query.thread_safety"></a><h6>
<a name="id874344"></a>
<a class="link" href="query.html#asio.reference.ip__basic_resolver.query.thread_safety">Thread
Safety</a>
</h6>
<p>
<span class="bold"><strong>Distinct</strong></span> <span class="bold"><strong>objects:</strong></span>
Safe.
</p>
<p>
<span class="bold"><strong>Shared</strong></span> <span class="bold"><strong>objects:</strong></span>
Unsafe.
</p>
<a name="asio.reference.ip__basic_resolver.query.requirements"></a><h6>
<a name="id874393"></a>
<a class="link" href="query.html#asio.reference.ip__basic_resolver.query.requirements">Requirements</a>
</h6>
<p>
<span class="bold"><strong>Header: </strong></span><code class="literal">asio/ip/basic_resolver.hpp</code>
</p>
<p>
<span class="bold"><strong>Convenience header: </strong></span><code class="literal">asio.hpp</code>
</p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<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>)
</p>
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