1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Type definition from_failure_handler</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="../../index.html" title="Chapter 1. Boost.Contract 1.0.0"> 8<link rel="up" href="../../reference.html#header.boost.contract.core.exception_hpp" title="Header <boost/contract/core/exception.hpp>"> 9<link rel="prev" href="from.html" title="Type from"> 10<link rel="next" href="failure_handler.html" title="Type definition failure_handler"> 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="from.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../reference.html#header.boost.contract.core.exception_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="failure_handler.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="refentry"> 26<a name="boost.contract.from_failure_handler"></a><div class="titlepage"></div> 27<div class="refnamediv"> 28<h2><span class="refentrytitle">Type definition from_failure_handler</span></h2> 29<p>from_failure_handler — Type of assertion failure handler functions (with <code class="computeroutput">from</code> parameter). </p> 30</div> 31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 32<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../reference.html#header.boost.contract.core.exception_hpp" title="Header <boost/contract/core/exception.hpp>">boost/contract/core/exception.hpp</a>> 33 34</span> 35<span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">function</span><span class="special"><</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">from</span><span class="special">)</span><span class="special">></span> <span class="identifier">from_failure_handler</span><span class="special">;</span></pre></div> 36<div class="refsect1"> 37<a name="idm45988678814752"></a><h2>Description</h2> 38<p>Assertion failure handler functions specified by this type must be functors returning <code class="computeroutput">void</code> and taking a single parameter of type <code class="computeroutput"><a class="link" href="from.html" title="Type from">boost::contract::from</a></code>. For example, this is used to specify contract failure handlers for class invariants, preconditions, postconditions, and exception guarantees.</p> 39<p><span class="bold"><strong>See Also:</strong></span></p> 40<p> <a class="link" href="../../boost_contract/advanced.html#boost_contract.advanced.throw_on_failures__and__noexcept__" title="Throw on Failures (and noexcept)"> Throw on Failure</a> </p> 41<p> 42</p> 43<p> 44</p> 45</div> 46</div> 47<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 48<td align="left"></td> 49<td align="right"><div class="copyright-footer">Copyright © 2008-2019 Lorenzo Caminiti<p> 50 Distributed under the Boost Software License, Version 1.0 (see accompanying 51 file LICENSE_1_0.txt or a copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 52 </p> 53</div></td> 54</tr></table> 55<hr> 56<div class="spirit-nav"> 57<a accesskey="p" href="from.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../reference.html#header.boost.contract.core.exception_hpp"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="failure_handler.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 58</div> 59</body> 60</html> 61
