1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>basic_system_executor::query (1 of 3 overloads)</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="../query.html" title="basic_system_executor::query"> 9<link rel="prev" href="../query.html" title="basic_system_executor::query"> 10<link rel="next" href="overload2.html" title="basic_system_executor::query (2 of 3 overloads)"> 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="../query.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="overload2.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="boost_asio.reference.basic_system_executor.query.overload1"></a><a class="link" href="overload1.html" title="basic_system_executor::query (1 of 3 overloads)">basic_system_executor::query 28 (1 of 3 overloads)</a> 29</h5></div></div></div> 30<p> 31 Query the current value of the <code class="computeroutput">allocator</code> property. 32 </p> 33<pre class="programlisting">template< 34 typename OtherAllocator> 35constexpr Allocator query( 36 execution::allocator_t< OtherAllocator > ) const; 37</pre> 38<p> 39 Do not call this function directly. It is intended for use with the 40 <a class="link" href="../../query.html" title="query"><code class="computeroutput">query</code></a> 41 customisation point. 42 </p> 43<p> 44 For example: 45 </p> 46<pre class="programlisting">boost::asio::system_executor ex; 47auto alloc = boost::asio::query(ex, 48 boost::asio::execution::allocator); 49</pre> 50</div> 51<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 52<td align="left"></td> 53<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 54 Kohlhoff<p> 55 Distributed under the Boost Software License, Version 1.0. (See accompanying 56 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>) 57 </p> 58</div></td> 59</tr></table> 60<hr> 61<div class="spirit-nav"> 62<a accesskey="p" href="../query.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../query.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="overload2.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 63</div> 64</body> 65</html> 66
