<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<title>libstdc++: exception_ptr.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript">
$(document).ready(initResizable);
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.7.4 -->
<div id="top">
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">libstdc++</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
initNavTree('a00866.html','');
</script>
<div id="doc-content">
<div class="header">
<div class="headertitle">
<div class="title">exception_ptr.h</div> </div>
</div>
<div class="contents">
<a href="a00866.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Exception Handling support header (exception_ptr class) for -*- C++ -*-</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003 <span class="comment">// Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation</span>
<a name="l00004"></a>00004 <span class="comment">//</span>
<a name="l00005"></a>00005 <span class="comment">// This file is part of GCC.</span>
<a name="l00006"></a>00006 <span class="comment">//</span>
<a name="l00007"></a>00007 <span class="comment">// GCC is free software; you can redistribute it and/or modify</span>
<a name="l00008"></a>00008 <span class="comment">// it under the terms of the GNU General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment">// the Free Software Foundation; either version 3, or (at your option)</span>
<a name="l00010"></a>00010 <span class="comment">// any later version.</span>
<a name="l00011"></a>00011 <span class="comment">// </span>
<a name="l00012"></a>00012 <span class="comment">// GCC is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00015"></a>00015 <span class="comment">// GNU General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment">// </span>
<a name="l00017"></a>00017 <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span>
<a name="l00018"></a>00018 <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span>
<a name="l00019"></a>00019 <span class="comment">// 3.1, as published by the Free Software Foundation.</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="comment">// You should have received a copy of the GNU General Public License and</span>
<a name="l00022"></a>00022 <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span>
<a name="l00023"></a>00023 <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span>
<a name="l00024"></a>00024 <span class="comment">// <http://www.gnu.org/licenses/>.</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment">/** @file bits/exception_ptr.h</span>
<a name="l00027"></a>00027 <span class="comment"> * This is an internal header file, included by other library headers.</span>
<a name="l00028"></a>00028 <span class="comment"> * Do not attempt to use it directly. @headername{exception}</span>
<a name="l00029"></a>00029 <span class="comment"> */</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#ifndef _EXCEPTION_PTR_H</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#define _EXCEPTION_PTR_H</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="preprocessor">#pragma GCC visibility push(default)</span>
<a name="l00035"></a>00035 <span class="preprocessor"></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <<a class="code" href="a00781.html">bits/c++config.h</a>></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <<a class="code" href="a00865.html">bits/exception_defines.h</a>></span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="preprocessor">#if !defined(_GLIBCXX_ATOMIC_BUILTINS_4)</span>
<a name="l00040"></a>00040 <span class="preprocessor"></span><span class="preprocessor"># error This platform does not support exception propagation.</span>
<a name="l00041"></a>00041 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
<a name="l00042"></a>00042 <span class="preprocessor"></span>
<a name="l00043"></a>00043 <span class="keyword">extern</span> <span class="stringliteral">"C++"</span> {
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="keyword">namespace </span>std
<a name="l00046"></a>00046 {<span class="comment"></span>
<a name="l00047"></a>00047 <span class="comment"> /**</span>
<a name="l00048"></a>00048 <span class="comment"> * @addtogroup exceptions</span>
<a name="l00049"></a>00049 <span class="comment"> * @{</span>
<a name="l00050"></a>00050 <span class="comment"> */</span>
<a name="l00051"></a>00051 <span class="keyword">namespace </span>__exception_ptr
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="keyword">class </span>exception_ptr;
<a name="l00054"></a>00054 }
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">using</span> __exception_ptr::exception_ptr;
<a name="l00057"></a>00057 <span class="comment"></span>
<a name="l00058"></a>00058 <span class="comment"> /** Obtain an exception_ptr to the currently handled exception. If there</span>
<a name="l00059"></a>00059 <span class="comment"> * is none, or the currently handled exception is foreign, return the null</span>
<a name="l00060"></a>00060 <span class="comment"> * value.</span>
<a name="l00061"></a>00061 <span class="comment"> */</span>
<a name="l00062"></a>00062 exception_ptr <a class="code" href="a01164.html#gaec6f6bed48ef2c7609c292a8220ce74e">current_exception</a>() throw();
<a name="l00063"></a>00063 <span class="comment"></span>
<a name="l00064"></a>00064 <span class="comment"> /// Throw the object pointed to by the exception_ptr.</span>
<a name="l00065"></a>00065 <span class="comment"></span> <span class="keywordtype">void</span> <a class="code" href="a01164.html#ga64d0b68338d7edbfd7d95f4177dbc442" title="Throw the object pointed to by the exception_ptr.">rethrow_exception</a>(exception_ptr) __attribute__ ((__noreturn__));
<a name="l00066"></a>00066
<a name="l00067"></a>00067 namespace __exception_ptr
<a name="l00068"></a>00068 {<span class="comment"></span>
<a name="l00069"></a>00069 <span class="comment"> /**</span>
<a name="l00070"></a>00070 <span class="comment"> * @brief An opaque pointer to an arbitrary exception.</span>
<a name="l00071"></a>00071 <span class="comment"> * @ingroup exceptions</span>
<a name="l00072"></a>00072 <span class="comment"> */</span>
<a name="l00073"></a><a class="code" href="a00289.html">00073</a> <span class="keyword">class </span><a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 <span class="keywordtype">void</span>* _M_exception_object;
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="keyword">explicit</span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>(<span class="keywordtype">void</span>* __e) <span class="keywordflow">throw</span>();
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordtype">void</span> _M_addref() <span class="keywordflow">throw</span>();
<a name="l00080"></a>00080 <span class="keywordtype">void</span> _M_release() <span class="keywordflow">throw</span>();
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <span class="keywordtype">void</span> *_M_get() <span class="keyword">const</span> <span class="keywordflow">throw</span>() __attribute__ ((__pure__));
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keyword">friend</span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a> <a class="code" href="a01164.html#gaec6f6bed48ef2c7609c292a8220ce74e">std::current_exception</a>() <span class="keywordflow">throw</span>();
<a name="l00085"></a>00085 <span class="keyword">friend</span> <span class="keywordtype">void</span> <a class="code" href="a01164.html#ga64d0b68338d7edbfd7d95f4177dbc442" title="Throw the object pointed to by the exception_ptr.">std::rethrow_exception</a>(<a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>);
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keyword">public</span>:
<a name="l00088"></a>00088 <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>() <span class="keywordflow">throw</span>();
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>(<span class="keyword">const</span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&) <span class="keywordflow">throw</span>();
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="preprocessor">#ifdef __GXX_EXPERIMENTAL_CXX0X__</span>
<a name="l00093"></a>00093 <span class="preprocessor"></span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>(nullptr_t) <span class="keywordflow">throw</span>()
<a name="l00094"></a>00094 : _M_exception_object(0)
<a name="l00095"></a>00095 { }
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>(<a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&& __o) <span class="keywordflow">throw</span>()
<a name="l00098"></a>00098 : _M_exception_object(__o._M_exception_object)
<a name="l00099"></a>00099 { __o._M_exception_object = 0; }
<a name="l00100"></a>00100 <span class="preprocessor">#else</span>
<a name="l00101"></a>00101 <span class="preprocessor"></span> <span class="keyword">typedef</span> void (<a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>::*__safe_bool)();
<a name="l00102"></a>00102
<a name="l00103"></a>00103 <span class="comment">// For construction from nullptr or 0.</span>
<a name="l00104"></a>00104 <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>(__safe_bool) <span class="keywordflow">throw</span>();
<a name="l00105"></a>00105 <span class="preprocessor">#endif</span>
<a name="l00106"></a>00106 <span class="preprocessor"></span>
<a name="l00107"></a>00107 <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&
<a name="l00108"></a>00108 operator=(<span class="keyword">const</span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&) <span class="keywordflow">throw</span>();
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="preprocessor">#ifdef __GXX_EXPERIMENTAL_CXX0X__</span>
<a name="l00111"></a>00111 <span class="preprocessor"></span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&
<a name="l00112"></a>00112 operator=(<a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&& __o) <span class="keywordflow">throw</span>()
<a name="l00113"></a>00113 {
<a name="l00114"></a>00114 <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>(static_cast<exception_ptr&&>(__o)).swap(*<span class="keyword">this</span>);
<a name="l00115"></a>00115 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 <span class="preprocessor">#endif</span>
<a name="l00118"></a>00118 <span class="preprocessor"></span>
<a name="l00119"></a>00119 ~<a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>() <span class="keywordflow">throw</span>();
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="keywordtype">void</span>
<a name="l00122"></a>00122 swap(<a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&) <span class="keywordflow">throw</span>();
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="preprocessor">#ifdef _GLIBCXX_EH_PTR_COMPAT</span>
<a name="l00125"></a>00125 <span class="preprocessor"></span> <span class="comment">// Retained for compatibility with CXXABI_1.3.</span>
<a name="l00126"></a>00126 <span class="keywordtype">void</span> _M_safe_bool_dummy() <span class="keywordflow">throw</span>() __attribute__ ((__const__));
<a name="l00127"></a>00127 <span class="keywordtype">bool</span> operator!() <span class="keyword">const</span> <span class="keywordflow">throw</span>() __attribute__ ((__pure__));
<a name="l00128"></a>00128 operator __safe_bool() <span class="keyword">const</span> <span class="keywordflow">throw</span>();
<a name="l00129"></a>00129 <span class="preprocessor">#endif</span>
<a name="l00130"></a>00130 <span class="preprocessor"></span>
<a name="l00131"></a>00131 <span class="preprocessor">#ifdef __GXX_EXPERIMENTAL_CXX0X__</span>
<a name="l00132"></a>00132 <span class="preprocessor"></span> <span class="keyword">explicit</span> operator bool()<span class="keyword"> const</span>
<a name="l00133"></a>00133 <span class="keyword"> </span>{ <span class="keywordflow">return</span> _M_exception_object; }
<a name="l00134"></a>00134 <span class="preprocessor">#endif</span>
<a name="l00135"></a>00135 <span class="preprocessor"></span>
<a name="l00136"></a>00136 <span class="keyword">friend</span> <span class="keywordtype">bool</span>
<a name="l00137"></a>00137 operator==(<span class="keyword">const</span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&, <span class="keyword">const</span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&) <span class="keywordflow">throw</span>()
<a name="l00138"></a>00138 __attribute__ ((__pure__));
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="keyword">const</span> <span class="keyword">class </span><a class="code" href="a00722.html" title="Part of RTTI.">type_info</a>*
<a name="l00141"></a>00141 __cxa_exception_type() <span class="keyword">const</span> <span class="keywordflow">throw</span>() __attribute__ ((__pure__));
<a name="l00142"></a>00142 };
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="keywordtype">bool</span>
<a name="l00145"></a>00145 operator==(<span class="keyword">const</span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&, <span class="keyword">const</span> <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&) throw()
<a name="l00146"></a>00146 __attribute__ ((__pure__));
<a name="l00147"></a>00147
<a name="l00148"></a>00148 <span class="keywordtype">bool</span>
<a name="l00149"></a>00149 operator!=(const <a class="code" href="a00289.html" title="An opaque pointer to an arbitrary exception.">exception_ptr</a>&, const exception_ptr&) throw()
<a name="l00150"></a>00150 __attribute__ ((__pure__));
<a name="l00151"></a>00151
<a name="l00152"></a>00152 inline <span class="keywordtype">void</span>
<a name="l00153"></a>00153 swap(exception_ptr& __lhs, exception_ptr& __rhs)
<a name="l00154"></a>00154 { __lhs.swap(__rhs); }
<a name="l00155"></a>00155
<a name="l00156"></a>00156 } <span class="comment">// namespace __exception_ptr</span>
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="comment"></span>
<a name="l00159"></a>00159 <span class="comment"> /// Obtain an exception_ptr pointing to a copy of the supplied object.</span>
<a name="l00160"></a>00160 <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span> _Ex>
<a name="l00161"></a>00161 exception_ptr
<a name="l00162"></a><a class="code" href="a01164.html#gae79ad82644979c6b29c9446c03a3ee8c">00162</a> <a class="code" href="a01164.html#gae79ad82644979c6b29c9446c03a3ee8c" title="Obtain an exception_ptr pointing to a copy of the supplied object.">copy_exception</a>(_Ex __ex) <span class="keywordflow">throw</span>()
<a name="l00163"></a>00163 {
<a name="l00164"></a>00164 __try
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 <span class="preprocessor">#ifdef __EXCEPTIONS</span>
<a name="l00167"></a>00167 <span class="preprocessor"></span> <span class="keywordflow">throw</span> __ex;
<a name="l00168"></a>00168 <span class="preprocessor">#endif</span>
<a name="l00169"></a>00169 <span class="preprocessor"></span> }
<a name="l00170"></a>00170 __catch(...)
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 <span class="keywordflow">return</span> <a class="code" href="a01164.html#gaec6f6bed48ef2c7609c292a8220ce74e">current_exception</a>();
<a name="l00173"></a>00173 }
<a name="l00174"></a>00174 }
<a name="l00175"></a>00175
<a name="l00176"></a>00176 <span class="comment">// _GLIBCXX_RESOLVE_LIB_DEFECTS</span>
<a name="l00177"></a>00177 <span class="comment">// 1130. copy_exception name misleading</span><span class="comment"></span>
<a name="l00178"></a>00178 <span class="comment"> /// Obtain an exception_ptr pointing to a copy of the supplied object.</span>
<a name="l00179"></a>00179 <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span> _Ex>
<a name="l00180"></a>00180 exception_ptr
<a name="l00181"></a><a class="code" href="a01164.html#gad116844deb19c6c1f3dcf40f77a747dc">00181</a> <a class="code" href="a01164.html#gad116844deb19c6c1f3dcf40f77a747dc" title="Obtain an exception_ptr pointing to a copy of the supplied object.">make_exception_ptr</a>(_Ex __ex) <span class="keywordflow">throw</span>()
<a name="l00182"></a>00182 { <span class="keywordflow">return</span> std::copy_exception<_Ex>(__ex); }
<a name="l00183"></a>00183
<a name="l00184"></a>00184 <span class="comment">// @} group exceptions</span>
<a name="l00185"></a>00185 } <span class="comment">// namespace std</span>
<a name="l00186"></a>00186
<a name="l00187"></a>00187 } <span class="comment">// extern "C++"</span>
<a name="l00188"></a>00188
<a name="l00189"></a>00189 <span class="preprocessor">#pragma GCC visibility pop</span>
<a name="l00190"></a>00190 <span class="preprocessor"></span>
<a name="l00191"></a>00191 <span class="preprocessor">#endif</span>
</pre></div></div>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="a00866.html">exception_ptr.h</a> </li>
<li class="footer">Generated by 
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.4 </li>
</ul>
</div>
</body>
</html>
