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<div class="titlepage"><div><div><h4 class="title">
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<a name="boost_asio.reference.ip__basic_resolver.query"></a><a class="link" href="query.html" title="ip::basic_resolver::query">ip::basic_resolver::query</a>
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</h4></div></div></div>
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<p>
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<a class="indexterm" name="boost_asio.indexterm.ip__basic_resolver.query"></a>
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(Deprecated.)
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The query type.
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</p>
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<pre class="programlisting">typedef basic_resolver_query< InternetProtocol > query;
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</pre>
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<h6>
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<a name="boost_asio.reference.ip__basic_resolver.query.h0"></a>
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<span class="phrase"><a name="boost_asio.reference.ip__basic_resolver.query.types"></a></span><a class="link" href="query.html#boost_asio.reference.ip__basic_resolver.query.types">Types</a>
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</h6>
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<div class="informaltable"><table class="table">
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Name
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Description
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</tr></thead>
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<p>
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<a class="link" href="../ip__basic_resolver_query/flags.html" title="ip::basic_resolver_query::flags"><span class="bold"><strong>flags</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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A bitmask type (C++ Std [lib.bitmask.types]).
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</p>
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</td>
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<p>
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<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>
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</p>
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</td>
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<td>
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<p>
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The protocol type associated with the endpoint query.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h6>
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<a name="boost_asio.reference.ip__basic_resolver.query.h1"></a>
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<span class="phrase"><a name="boost_asio.reference.ip__basic_resolver.query.member_functions"></a></span><a class="link" href="query.html#boost_asio.reference.ip__basic_resolver.query.member_functions">Member
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Functions</a>
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</h6>
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<div class="informaltable"><table class="table">
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Name
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Description
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<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> <span class="silver">[constructor]</span>
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</p>
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</td>
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<td>
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<p>
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Construct with specified service name for any protocol. <br>
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<span class="silver"> —</span><br> Construct with specified service name for a given protocol.
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<br> <span class="silver"> —</span><br> Construct with specified host name and service
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name for any protocol. <br> <span class="silver"> —</span><br> Construct with specified
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host name and service name for a given protocol.
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</p>
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</td>
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</tr>
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<tr>
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<p>
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<a class="link" href="../ip__basic_resolver_query/hints.html" title="ip::basic_resolver_query::hints"><span class="bold"><strong>hints</strong></span></a>
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</p>
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</td>
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<td>
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<p>
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Get the hints associated with the query.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<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>
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</p>
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</td>
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<td>
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<p>
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Get the host name associated with the query.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<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>
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</p>
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</td>
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<td>
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<p>
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Get the service name associated with the query.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<h6>
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<a name="boost_asio.reference.ip__basic_resolver.query.h2"></a>
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<span class="phrase"><a name="boost_asio.reference.ip__basic_resolver.query.data_members"></a></span><a class="link" href="query.html#boost_asio.reference.ip__basic_resolver.query.data_members">Data
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Members</a>
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</h6>
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<div class="informaltable"><table class="table">
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<colgroup>
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<col>
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<col>
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Name
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<p>
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Description
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</tr></thead>
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<p>
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<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> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Only return IPv4 addresses if a non-loopback IPv4 address is
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configured for the system. Only return IPv6 addresses if a non-loopback
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IPv6 address is configured for the system.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<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> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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If used with v4_mapped, return all matching IPv6 and IPv4 addresses.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<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> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Determine the canonical name of the host specified in the query.
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</p>
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</td>
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</tr>
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<td>
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<p>
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<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> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Host name should be treated as a numeric string defining an IPv4
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or IPv6 address and no name resolution should be attempted.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<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> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Service name should be treated as a numeric string defining a
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port number and no name resolution should be attempted.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a class="link" href="../ip__basic_resolver_query/passive.html" title="ip::basic_resolver_query::passive"><span class="bold"><strong>passive</strong></span></a> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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Indicate that returned endpoint is intended for use as a locally
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bound socket endpoint.
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<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> <span class="silver">[static]</span>
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</p>
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</td>
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<td>
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<p>
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If the query protocol family is specified as IPv6, return IPv4-mapped
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IPv6 addresses on finding no IPv6 addresses.
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>
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The <a class="link" href="../ip__basic_resolver_query.html" title="ip::basic_resolver_query"><code class="computeroutput">ip::basic_resolver_query</code></a>
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class template describes a query that can be passed to a resolver.
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</p>
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<h6>
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<a name="boost_asio.reference.ip__basic_resolver.query.h3"></a>
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<span class="phrase"><a name="boost_asio.reference.ip__basic_resolver.query.thread_safety"></a></span><a class="link" href="query.html#boost_asio.reference.ip__basic_resolver.query.thread_safety">Thread
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Safety</a>
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</h6>
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<p>
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<span class="emphasis"><em>Distinct</em></span> <span class="emphasis"><em>objects:</em></span> Safe.
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</p>
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<p>
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<span class="emphasis"><em>Shared</em></span> <span class="emphasis"><em>objects:</em></span> Unsafe.
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</p>
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<h6>
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<a name="boost_asio.reference.ip__basic_resolver.query.h4"></a>
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<span class="phrase"><a name="boost_asio.reference.ip__basic_resolver.query.requirements"></a></span><a class="link" href="query.html#boost_asio.reference.ip__basic_resolver.query.requirements">Requirements</a>
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</h6>
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<p>
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<span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/ip/basic_resolver.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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</p>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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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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