1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>default_completion_token</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="deadline_timer.html" title="deadline_timer"> 10<link rel="next" href="default_completion_token/type.html" title="default_completion_token::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="deadline_timer.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="default_completion_token/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.default_completion_token"></a><a class="link" href="default_completion_token.html" title="default_completion_token">default_completion_token</a> 28</h3></div></div></div> 29<p> 30 Traits type used to determine the default completion token type associated 31 with a type (such as an executor). 32 </p> 33<pre class="programlisting">template< 34 typename T> 35struct default_completion_token 36</pre> 37<h5> 38<a name="boost_asio.reference.default_completion_token.h0"></a> 39 <span class="phrase"><a name="boost_asio.reference.default_completion_token.types"></a></span><a class="link" href="default_completion_token.html#boost_asio.reference.default_completion_token.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="default_completion_token/type.html" title="default_completion_token::type"><span class="bold"><strong>type</strong></span></a> 62 </p> 63 </td> 64<td> 65 <p> 66 If T has a nested type default_completion_token_type, T::default_completion_token_type. 67 Otherwise the typedef type is not defined. 68 </p> 69 </td> 70</tr></tbody> 71</table></div> 72<p> 73 A program may specialise this traits type if the <code class="computeroutput">T</code> template 74 parameter in the specialisation is a user-defined type. 75 </p> 76<p> 77 Specialisations of this trait may provide a nested typedef <code class="computeroutput">type</code>, 78 which is a default-constructible completion token type. 79 </p> 80<h5> 81<a name="boost_asio.reference.default_completion_token.h1"></a> 82 <span class="phrase"><a name="boost_asio.reference.default_completion_token.requirements"></a></span><a class="link" href="default_completion_token.html#boost_asio.reference.default_completion_token.requirements">Requirements</a> 83 </h5> 84<p> 85 <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/async_result.hpp</code> 86 </p> 87<p> 88 <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code> 89 </p> 90</div> 91<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 92<td align="left"></td> 93<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 94 Kohlhoff<p> 95 Distributed under the Boost Software License, Version 1.0. (See accompanying 96 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>) 97 </p> 98</div></td> 99</tr></table> 100<hr> 101<div class="spirit-nav"> 102<a accesskey="p" href="deadline_timer.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="default_completion_token/type.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 103</div> 104</body> 105</html> 106
