1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Type error_code</title> 5<link rel="stylesheet" href="../../boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../index.html" title="Boost.Test"> 8<link rel="up" href="../execution_exception.html#idm46175619963632" title="Description"> 9<link rel="prev" href="location.html" title="Struct location"> 10<link rel="next" href="../execution_monitor.html" title="Class execution_monitor"> 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="location.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../execution_exception.html#idm46175619963632"><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="../execution_monitor.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="refentry"> 26<a name="boost.execution_exception.error_code"></a><div class="titlepage"></div> 27<div class="refnamediv"> 28<h2><span class="refentrytitle">Type error_code</span></h2> 29<p>boost::execution_exception::error_code — These values are sometimes used as program return codes. The particular values have been chosen to avoid conflicts with commonly used program return codes: values < 100 are often user assigned, values > 255 are sometimes used to report system errors. Gaps in values allow for orderly expansion. </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="../../header/boost/test/execution_monitor_hpp.html" title="Header <boost/test/execution_monitor.hpp>">boost/test/execution_monitor.hpp</a>> 33 34</span> 35<span class="keyword">enum</span> <span class="identifier">error_code</span> <span class="special">{</span> <a class="link" href="error_code.html#boost.execution_exception.error_code.no_error">no_error</a> = = 0, <a class="link" href="error_code.html#boost.execution_exception.error_code.user_error">user_error</a> = = 200, 36 <a class="link" href="error_code.html#boost.execution_exception.error_code.cpp_exception_error">cpp_exception_error</a> = = 205, <a class="link" href="error_code.html#boost.execution_exception.error_code.system_error">system_error</a> = = 210, 37 <a class="link" href="error_code.html#boost.execution_exception.error_code.timeout_error">timeout_error</a> = = 215, <a class="link" href="error_code.html#boost.execution_exception.error_code.user_fatal_error">user_fatal_error</a> = = 220, 38 <a class="link" href="error_code.html#boost.execution_exception.error_code.system_fatal_error">system_fatal_error</a> = = 225 <span class="special">}</span><span class="special">;</span></pre></div> 39<div class="refsect1"> 40<a name="idm46175619860720"></a><h2>Description</h2> 41<div class="note"><table border="0" summary="Note"> 42<tr> 43<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../doc/src/images/note.png"></td> 44<th align="left">Note</th> 45</tr> 46<tr><td align="left" valign="top"><p>(1) Only uncaught C++ exceptions are treated as errors. If a function catches a C++ exception, it never reaches the <a class="link" href="../execution_monitor.html" title="Class execution_monitor">execution_monitor</a>.</p></td></tr> 47</table></div> 48<p> 49The implementation decides what is a system_fatal_error and what is just a system_exception. Fatal errors are so likely to have corrupted machine state (like a stack overflow or addressing exception) that it is unreasonable to continue execution.</p> 50<div class="note"><table border="0" summary="Note"> 51<tr> 52<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../doc/src/images/note.png"></td> 53<th align="left">Note</th> 54</tr> 55<tr><td align="left" valign="top"><p>(2) These errors include Unix signals and Windows structured exceptions. They are often initiated by hardware traps. </p></td></tr> 56</table></div> 57<p> 58</p> 59<div class="variablelist"><dl class="variablelist compact"> 60<dt><span class="term"><code class="computeroutput">no_error</code><a name="boost.execution_exception.error_code.no_error"></a></span></dt> 61<dd>for completeness only; never returned </dd> 62<dt><span class="term"><code class="computeroutput">user_error</code><a name="boost.execution_exception.error_code.user_error"></a></span></dt> 63<dd>user reported non-fatal error </dd> 64<dt><span class="term"><code class="computeroutput">cpp_exception_error</code><a name="boost.execution_exception.error_code.cpp_exception_error"></a></span></dt> 65<dd>see note (1) above </dd> 66<dt><span class="term"><code class="computeroutput">system_error</code><a name="boost.execution_exception.error_code.system_error"></a></span></dt> 67<dd>see note (2) above </dd> 68<dt><span class="term"><code class="computeroutput">timeout_error</code><a name="boost.execution_exception.error_code.timeout_error"></a></span></dt> 69<dd>only detectable on certain platforms </dd> 70<dt><span class="term"><code class="computeroutput">user_fatal_error</code><a name="boost.execution_exception.error_code.user_fatal_error"></a></span></dt> 71<dd>user reported fatal error </dd> 72<dt><span class="term"><code class="computeroutput">system_fatal_error</code><a name="boost.execution_exception.error_code.system_fatal_error"></a></span></dt> 73<dd>see note (2) above </dd> 74</dl></div> 75</div> 76</div> 77<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 78<td align="left"></td> 79<td align="right"><div class="copyright-footer">Copyright © 2001-2020 Boost.Test contributors<p> 80 Distributed under the Boost Software License, Version 1.0. (See accompanying 81 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>) 82 </p> 83</div></td> 84</tr></table> 85<hr> 86<div class="spirit-nav"> 87<a accesskey="p" href="location.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../execution_exception.html#idm46175619963632"><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="../execution_monitor.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 88</div> 89</body> 90</html> 91
