1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>query_result</title> 5<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../boost_asio.html" title="Boost.Asio"> 8<link rel="up" href="../reference.html" title="Reference"> 9<link rel="prev" href="query.html" title="query"> 10<link rel="next" href="query_result/type.html" title="query_result::type"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> 15<td align="center"><a href="../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="query.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../boost_asio.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="query_result/type.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h3 class="title"> 27<a name="boost_asio.reference.query_result"></a><a class="link" href="query_result.html" title="query_result">query_result</a> 28</h3></div></div></div> 29<p> 30 A type trait that determines the result type of a <code class="computeroutput">query</code> expression. 31 </p> 32<pre class="programlisting">template< 33 typename T, 34 typename Property> 35struct query_result 36</pre> 37<h5> 38<a name="boost_asio.reference.query_result.h0"></a> 39 <span class="phrase"><a name="boost_asio.reference.query_result.types"></a></span><a class="link" href="query_result.html#boost_asio.reference.query_result.types">Types</a> 40 </h5> 41<div class="informaltable"><table class="table"> 42<colgroup> 43<col> 44<col> 45</colgroup> 46<thead><tr> 47<th> 48 <p> 49 Name 50 </p> 51 </th> 52<th> 53 <p> 54 Description 55 </p> 56 </th> 57</tr></thead> 58<tbody><tr> 59<td> 60 <p> 61 <a class="link" href="query_result/type.html" title="query_result::type"><span class="bold"><strong>type</strong></span></a> 62 </p> 63 </td> 64<td> 65 <p> 66 The result of the query expression. 67 </p> 68 </td> 69</tr></tbody> 70</table></div> 71<p> 72 Class template <code class="computeroutput">query_result</code> is a trait that determines the result 73 type of the expression <code class="computeroutput">boost::asio::query(std::declval<T>(), 74 std::declval<Property>())</code>. 75 </p> 76<h5> 77<a name="boost_asio.reference.query_result.h1"></a> 78 <span class="phrase"><a name="boost_asio.reference.query_result.requirements"></a></span><a class="link" href="query_result.html#boost_asio.reference.query_result.requirements">Requirements</a> 79 </h5> 80<p> 81 <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/query.hpp</code> 82 </p> 83<p> 84 <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code> 85 </p> 86</div> 87<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 88<td align="left"></td> 89<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 90 Kohlhoff<p> 91 Distributed under the Boost Software License, Version 1.0. (See accompanying 92 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>) 93 </p> 94</div></td> 95</tr></table> 96<hr> 97<div class="spirit-nav"> 98<a accesskey="p" href="query.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../boost_asio.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="query_result/type.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 99</div> 100</body> 101</html> 102
