<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Connect condition 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="CompletionCondition.html" title="Completion condition requirements"> <link rel="next" href="ConnectHandler.html" title="Connect handler 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="CompletionCondition.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="ConnectHandler.html"><img src="../../next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h3 class="title"> <a name="asio.reference.ConnectCondition"></a><a class="link" href="ConnectCondition.html" title="Connect condition requirements">Connect condition requirements</a> </h3></div></div></div> <p> A type <code class="computeroutput"><span class="identifier">X</span></code> meets the <code class="computeroutput"><span class="identifier">ConnectCondition</span></code> requirements if it satisfies the requirements of <code class="computeroutput"><span class="identifier">Destructible</span></code> (C++Std [destructible]) and <code class="computeroutput"><span class="identifier">CopyConstructible</span></code> (C++Std [copyconstructible]), as well as the additional requirements listed below. </p> <p> In the table below, <code class="computeroutput"><span class="identifier">x</span></code> denotes a value of type <code class="computeroutput"><span class="identifier">X</span></code>, <code class="computeroutput"><span class="identifier">ec</span></code> denotes a (possibly const) value of type <code class="computeroutput"><span class="identifier">error_code</span></code>, and <code class="computeroutput"><span class="identifier">ep</span></code> denotes a (possibly const) value of some type satisfying the <a class="link" href="Endpoint.html" title="Endpoint requirements">endpoint</a> requirements. </p> <div class="table"> <a name="asio.reference.ConnectCondition.t0"></a><p class="title"><b>Table 10. ConnectCondition requirements</b></p> <div class="table-contents"><table class="table" summary="ConnectCondition requirements"> <colgroup> <col> <col> <col> </colgroup> <thead><tr> <th> <p> expression </p> </th> <th> <p> return type </p> </th> <th> <p> assertion/note<br> pre/post-condition </p> </th> </tr></thead> <tbody><tr> <td> <p> <code class="computeroutput"><span class="identifier">x</span><span class="special">(</span><span class="identifier">ec</span><span class="special">,</span> <span class="identifier">ep</span><span class="special">)</span></code> </p> </td> <td> <p> <code class="computeroutput"><span class="keyword">bool</span></code> </p> </td> <td> <p> Returns <code class="computeroutput"><span class="keyword">true</span></code> to indicate that the <code class="computeroutput"><span class="identifier">connect</span></code> or <code class="computeroutput"><span class="identifier">async_connect</span></code> algorithm should attempt a connection to the endpoint <code class="computeroutput"><span class="identifier">ep</span></code>. Otherwise, returns <code class="computeroutput"><span class="keyword">false</span></code> to indicate that the algorithm should not attempt connection to the endpoint <code class="computeroutput"><span class="identifier">ep</span></code>, and should instead skip to the next endpoint in the sequence. </p> </td> </tr></tbody> </table></div> </div> <br class="table-break"> </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="CompletionCondition.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="ConnectHandler.html"><img src="../../next.png" alt="Next"></a> </div> </body> </html>