<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Accept handler requirements</title> <link rel="stylesheet" href="../../boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.75.2"> <link rel="home" href="../../index.html" title="Asio"> <link rel="up" href="../reference.html" title="Reference"> <link rel="prev" href="AcceptableProtocol.html" title="Acceptable protocol requirements"> <link rel="next" href="AcceptToken.html" title="Accept token requirements"> <meta name="viewport" content="width=device-width, initial-scale=1"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="AcceptableProtocol.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="AcceptToken.html"><img src="../../next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h3 class="title"> <a name="asio.reference.AcceptHandler"></a><a class="link" href="AcceptHandler.html" title="Accept handler requirements">Accept handler requirements</a> </h3></div></div></div> <p> An accept handler must meet the requirements for a <a class="link" href="Handler.html" title="Handlers">handler</a>. A value <code class="computeroutput"><span class="identifier">h</span></code> of an accept handler class should work correctly in the expression <code class="computeroutput"><span class="identifier">h</span><span class="special">(</span><span class="identifier">ec</span><span class="special">)</span></code>, where <code class="computeroutput"><span class="identifier">ec</span></code> is an lvalue of type <code class="computeroutput"><span class="keyword">const</span> <span class="identifier">error_code</span></code>. </p> </div> <div class="copyright-footer">Copyright © 2003-2023 Christopher M. Kohlhoff<p> Distributed under the Boost Software License, Version 1.0. (See accompanying 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>) </p> </div> <hr> <div class="spirit-nav"> <a accesskey="p" href="AcceptableProtocol.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="AcceptToken.html"><img src="../../next.png" alt="Next"></a> </div> </body> </html>