1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Class specify_nothing</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.specify_hpp" title="Header <boost/contract/core/specify.hpp>"> 9<link rel="prev" href="specify_except.html" title="Class specify_except"> 10<link rel="next" href="specify__idm46268585058320.html" title="Class template specify_old_postcondition_except"> 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="specify_except.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../reference.html#header.boost.contract.core.specify_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="specify__idm46268585058320.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="refentry"> 26<a name="boost.contract.specify_nothing"></a><div class="titlepage"></div> 27<div class="refnamediv"> 28<h2><span class="refentrytitle">Class specify_nothing</span></h2> 29<p>boost::contract::specify_nothing — Used to prevent setting other contract conditions after exception guarantees. </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.specify_hpp" title="Header <boost/contract/core/specify.hpp>">boost/contract/core/specify.hpp</a>> 33 34</span> 35<span class="keyword">class</span> <a class="link" href="specify_nothing.html" title="Class specify_nothing">specify_nothing</a> <span class="special">{</span> 36<span class="keyword">public</span><span class="special">:</span> 37 <span class="comment">// <a class="link" href="specify_nothing.html#boost.contract.specify_nothingconstruct-copy-destruct">construct/copy/destruct</a></span> 38 <a class="link" href="specify_nothing.html#idm46268585061216-bb"><span class="special">~</span><span class="identifier">specify_nothing</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 39<span class="special">}</span><span class="special">;</span></pre></div> 40<div class="refsect1"> 41<a name="idm45988678300000"></a><h2>Description</h2> 42<p>This class has no member function so it is used to prevent specifying additional functors to check any other contract. This object is internally constructed by the library when users specify contracts calling <code class="computeroutput"><a class="link" href="function.html" title="Function function">boost::contract::function</a></code> and similar functions (that is why this class does not have a public constructor).</p> 43<p><span class="bold"><strong>See Also:</strong></span></p> 44<p> <a class="link" href="../../boost_contract/tutorial.html" title="Tutorial"> Tutorial</a> </p> 45<p> 46</p> 47<p> 48</p> 49<div class="refsect2"> 50<a name="idm45988678295664"></a><h3> 51<a name="boost.contract.specify_nothingconstruct-copy-destruct"></a><code class="computeroutput">specify_nothing</code> 52 public 53 construct/copy/destruct</h3> 54<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> 55<pre class="literallayout"><a name="idm46268585061216-bb"></a><span class="special">~</span><span class="identifier">specify_nothing</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>Destruct this object. <p><span class="bold"><strong>Throws:</strong></span> This is declared <code class="computeroutput">noexcept(false)</code> since C++11 to allow users to program failure handlers that throw exceptions on contract assertion failures (not the default, see <a class="link" href="../../boost_contract/advanced.html#boost_contract.advanced.throw_on_failures__and__noexcept__" title="Throw on Failures (and noexcept)"> 56 Throw on Failure</a>). </p> 57</li></ol></div> 58</div> 59</div> 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 © 2008-2019 Lorenzo Caminiti<p> 64 Distributed under the Boost Software License, Version 1.0 (see accompanying 65 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>) 66 </p> 67</div></td> 68</tr></table> 69<hr> 70<div class="spirit-nav"> 71<a accesskey="p" href="specify_except.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../reference.html#header.boost.contract.core.specify_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="specify__idm46268585058320.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 72</div> 73</body> 74</html> 75
