1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>error::system_category</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="error__ssl_errors.html" title="error::ssl_errors"> 10<link rel="next" href="execution__allocator.html" title="execution::allocator"> 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="error__ssl_errors.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="execution__allocator.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.error__system_category"></a><a class="link" href="error__system_category.html" title="error::system_category">error::system_category</a> 28</h3></div></div></div> 29<p> 30 <a class="indexterm" name="boost_asio.indexterm.error__system_category"></a> 31 </p> 32<pre class="programlisting">static const boost::system::error_category & system_category = boost::asio::error::get_system_category(); 33</pre> 34<h5> 35<a name="boost_asio.reference.error__system_category.h0"></a> 36 <span class="phrase"><a name="boost_asio.reference.error__system_category.requirements"></a></span><a class="link" href="error__system_category.html#boost_asio.reference.error__system_category.requirements">Requirements</a> 37 </h5> 38<p> 39 <span class="emphasis"><em>Header: </em></span><code class="literal">boost/asio/error.hpp</code> 40 </p> 41<p> 42 <span class="emphasis"><em>Convenience header: </em></span><code class="literal">boost/asio.hpp</code> 43 </p> 44</div> 45<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 46<td align="left"></td> 47<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 48 Kohlhoff<p> 49 Distributed under the Boost Software License, Version 1.0. (See accompanying 50 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>) 51 </p> 52</div></td> 53</tr></table> 54<hr> 55<div class="spirit-nav"> 56<a accesskey="p" href="error__ssl_errors.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="execution__allocator.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 57</div> 58</body> 59</html> 60
