1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>basic_signal_set::clear (2 of 2 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="../clear.html" title="basic_signal_set::clear"> 9<link rel="prev" href="overload1.html" title="basic_signal_set::clear (1 of 2 overloads)"> 10<link rel="next" href="../executor_type.html" title="basic_signal_set::executor_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="overload1.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../clear.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="../executor_type.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_signal_set.clear.overload2"></a><a class="link" href="overload2.html" title="basic_signal_set::clear (2 of 2 overloads)">basic_signal_set::clear 28 (2 of 2 overloads)</a> 29</h5></div></div></div> 30<p> 31 Remove all signals from a signal_set. 32 </p> 33<pre class="programlisting">void clear( 34 boost::system::error_code & ec); 35</pre> 36<p> 37 This function removes all signals from the set. It has no effect if the 38 set is already empty. 39 </p> 40<h6> 41<a name="boost_asio.reference.basic_signal_set.clear.overload2.h0"></a> 42 <span class="phrase"><a name="boost_asio.reference.basic_signal_set.clear.overload2.parameters"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_signal_set.clear.overload2.parameters">Parameters</a> 43 </h6> 44<div class="variablelist"> 45<p class="title"><b></b></p> 46<dl class="variablelist"> 47<dt><span class="term">ec</span></dt> 48<dd><p> 49 Set to indicate what error occurred, if any. 50 </p></dd> 51</dl> 52</div> 53<h6> 54<a name="boost_asio.reference.basic_signal_set.clear.overload2.h1"></a> 55 <span class="phrase"><a name="boost_asio.reference.basic_signal_set.clear.overload2.remarks"></a></span><a class="link" href="overload2.html#boost_asio.reference.basic_signal_set.clear.overload2.remarks">Remarks</a> 56 </h6> 57<p> 58 Removes all queued notifications. 59 </p> 60</div> 61<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 62<td align="left"></td> 63<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 64 Kohlhoff<p> 65 Distributed under the Boost Software License, Version 1.0. (See accompanying 66 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>) 67 </p> 68</div></td> 69</tr></table> 70<hr> 71<div class="spirit-nav"> 72<a accesskey="p" href="overload1.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../clear.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="../executor_type.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 73</div> 74</body> 75</html> 76
