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Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]6 <title>Clang - C++14, C++11 and C++98 Status</title>
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Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]26<h1>C++14, C++11 and C++98 Support in Clang</h1>
Cedric Venet3d658642009-02-14 20:20:19 +0000[diff] [blame]27<!--*************************************************************************-->
Douglas Gregor4c9b68f2009-06-27 19:33:58 +0000[diff] [blame]28<p>Last updated: $Date$</p>
Cedric Venet3d658642009-02-14 20:20:19 +0000[diff] [blame]29
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]30<p>Clang fully implements all published ISO C++ standards including <a
31href="#cxx11">C++11</a>, as well as the upcoming standard provisionally named <a
32href="#cxx14">C++14</a>, and is considered a production-quality C++ compiler.
33
34<p>The Clang community is continually striving to improve C++ standards
35compliance between releases by submitting and tracking <a
36href="cxx_dr_status.html">C++ Defect Reports</a> and implementing resolutions
37as they become available.</p>
38
39<p>Experimental work is also under way to implement <a href="#ts">C++ Technical
40Specifications</a> that will help drive the future of the C++ programming
41language.</p>
42
43<p>The <a href="http://llvm.org/bugs/">LLVM bug tracker</a> contains Clang
44C++ components that track known bugs with Clang's language conformance in
45each language mode.</p>
46
Richard Smith1e409d82012-02-24 18:42:08 +0000[diff] [blame]47<h2 id="cxx98">C++98 implementation status</h2>
48
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]49<p>Clang implements all of the ISO C++ 1998 standard
Douglas Gregor8c327082011-07-21 17:46:15 +0000[diff] [blame]50 (including the defects addressed in the ISO C++ 2003 standard)
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]51 except for <tt>export</tt> (which has been removed in C++11).
Douglas Gregor57f1a002010-02-05 23:51:14 +0000[diff] [blame]52
Richard Smith1e409d82012-02-24 18:42:08 +0000[diff] [blame]53<h2 id="cxx11">C++11 implementation status</h2>
Chris Lattner900e32d2010-05-21 20:59:40 +0000[diff] [blame]54
Richard Smithe6e68b52013-04-19 17:00:31 +0000[diff] [blame]55 <p>Clang implements all of the <a
56 href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=50372">ISO
57 C++ 2011 standard</a>. The following table describes the Clang version
58 in which each feature became available.</p>
Chris Lattner900e32d2010-05-21 20:59:40 +0000[diff] [blame]59
Richard Smith11fd5b12013-03-10 00:11:00 +0000[diff] [blame]60<p>By default, Clang builds C++ code according to the C++98 standard, with many
61C++11 features accepted as extensions. You can use Clang in C++11 mode with the
62<code>-std=c++11</code> option. Clang's C++11 mode can be used
63with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++, but
64patches are needed to make <a href="libstdc++4.4-clang0x.patch">libstdc++-4.4</a>
Richard Smithb5b37d12012-10-23 00:32:41 +0000[diff] [blame]65work with Clang in C++11 mode. Patches are also needed to make
Richard Smithb6972e62013-11-05 09:12:55 +0000[diff] [blame]66<a href="libstdc++4.6-clang11.patch">libstdc++-4.6</a>
Richard Smithb5b37d12012-10-23 00:32:41 +0000[diff] [blame]67and <a href="libstdc++4.7-clang11.patch">libstdc++-4.7</a> work with Clang
Richard Smithe6e68b52013-04-19 17:00:31 +0000[diff] [blame]68releases prior to version 3.2 in C++11 mode. <tt>thread_local</tt> support
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]69currently requires the C++ runtime library from g++-4.8 or later.</p>
Jeffrey Yasskin46ba01a2011-03-29 22:27:50 +0000[diff] [blame]70
Cedric Venet3d658642009-02-14 20:20:19 +0000[diff] [blame]71<table width="689" border="1" cellspacing="0">
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]72 <tr>
Benjamin Kramer8398bdb2011-11-05 10:11:36 +0000[diff] [blame]73 <th>Language Feature</th>
Richard Smith1e409d82012-02-24 18:42:08 +0000[diff] [blame]74 <th>C++11 Proposal</th>
Benjamin Kramer8398bdb2011-11-05 10:11:36 +0000[diff] [blame]75 <th>Available in Clang?</th>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]76 </tr>
77 <tr>
78 <td>Rvalue references</td>
79 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html">N2118</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]80 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]81 </tr>
82 <tr>
83 <td>&nbsp;&nbsp;&nbsp;&nbsp;Rvalue references for <code>*this</code></td>
84 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2439.htm">N2439</a></td>
Benjamin Kramer8398bdb2011-11-05 10:11:36 +0000[diff] [blame]85 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]86 </tr>
87 <tr>
88 <td>Initialization of class objects by rvalues</td>
89 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1610.html">N1610</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]90 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]91 </tr>
92 <tr>
93 <td>Non-static data member initializers</td>
94 <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2008/n2756.htm">N2756</a></td>
Benjamin Kramer8398bdb2011-11-05 10:11:36 +0000[diff] [blame]95 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]96 </tr>
97 <tr>
98 <td>Variadic templates</td>
99 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2242.pdf">N2242</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]100 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]101 </tr>
102 <tr>
103 <td>&nbsp;&nbsp;&nbsp;&nbsp;Extending variadic template template parameters</td>
104 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf">N2555</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]105 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]106 </tr>
107 <tr>
108 <td>Initializer lists</td>
109 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2672.htm">N2672</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]110 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]111 </tr>
112 <tr>
113 <td>Static assertions</td>
114 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html">N1720</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]115 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]116 </tr>
117 <tr>
118 <td><code>auto</code>-typed variables</td>
119 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1984.pdf">N1984</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]120 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]121 </tr>
122 <tr>
123 <td>&nbsp;&nbsp;&nbsp;&nbsp;Multi-declarator <code>auto</code></td>
124 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1737.pdf">N1737</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]125 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]126 </tr>
127 <tr>
128 <td>&nbsp;&nbsp;&nbsp;&nbsp;Removal of auto as a storage-class specifier</td>
129 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2546.htm">N2546</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]130 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]131 </tr>
132 <tr>
133 <td>&nbsp;&nbsp;&nbsp;&nbsp;New function declarator syntax</td>
134 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2541.htm">N2541</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]135 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]136 </tr>
137 <tr>
Douglas Gregor7c07e962012-02-23 03:02:32 +0000[diff] [blame]138 <td>Lambda expressions</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]139 <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2927.pdf">N2927</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]140 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]141 </tr>
142 <tr>
143 <td>Declared type of an expression</td>
144 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2343.pdf">N2343</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]145 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]146 </tr>
147 <tr>
Douglas Gregor316551f2012-04-10 20:00:33 +0000[diff] [blame]148 <td>&nbsp;&nbsp;&nbsp;&nbsp;Incomplete return types</td>
149 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3276.pdf">N3276</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]150 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor316551f2012-04-10 20:00:33 +0000[diff] [blame]151 </tr>
152 <tr>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]153 <td>Right angle brackets</td>
154 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html">N1757</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]155 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]156 </tr>
157 <tr>
158 <td>Default template arguments for function templates</td>
159 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#226">DR226</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]160 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]161 </tr>
162 <tr>
163 <td>Solving the SFINAE problem for expressions</td>
164 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2634.html">DR339</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]165 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]166 </tr>
167 <tr>
168 <td>Alias templates</td>
169 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf">N2258</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]170 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]171 </tr>
172 <tr>
173 <td>Extern templates</td>
174 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1987.htm">N1987</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]175 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]176 </tr>
177 <tr>
178 <td>Null pointer constant</td>
179 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf">N2431</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]180 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]181 </tr>
182 <tr>
183 <td>Strongly-typed enums</td>
184 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2347.pdf">N2347</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]185 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]186 </tr>
187 <tr>
188 <td>Forward declarations for enums</td>
Richard Smithf1c66b42012-03-14 23:13:10 +0000[diff] [blame]189 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2764.pdf">N2764</a>
190 <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1206">DR1206</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]191 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]192 </tr>
193 <tr>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]194 <td>Standardized attribute syntax</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]195 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf">N2761</a></td>
Richard Smith02344ac2013-06-17 23:54:23 +0000[diff] [blame]196 <td class="full" align="center">Clang 3.3 <a href="#n2761">(1)</a></td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]197 </tr>
198 <tr>
199 <td>Generalized constant expressions</td>
200 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2235.pdf">N2235</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]201 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]202 </tr>
203 <tr>
204 <td>Alignment support</td>
205 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2341.pdf">N2341</a></td>
Richard Smith02344ac2013-06-17 23:54:23 +0000[diff] [blame]206 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]207 </tr>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]208 <tr>
209 <td>Conditionally-support behavior</td>
210 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1627.pdf">N1627</a></td>
211 <td class="full" align="center">Clang 2.9</td>
212 </tr>
213 <tr>
214 <td>Changing undefined behavior into diagnosable errors</td>
215 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1727.pdf">N1727</a></td>
216 <td class="full" align="center">Clang 2.9</td>
217 </tr>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]218 <tr>
219 <td>Delegating constructors</td>
220 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1986.pdf">N1986</a></td>
Benjamin Kramer8398bdb2011-11-05 10:11:36 +0000[diff] [blame]221 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]222 </tr>
223 <tr>
224 <td>Inheriting constructors</td>
225 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2540.htm">N2540</a></td>
Richard Smith02344ac2013-06-17 23:54:23 +0000[diff] [blame]226 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]227 </tr>
228 <tr>
229 <td>Explicit conversion operators</td>
230 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf">N2437</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]231 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]232 </tr>
233 <tr>
234 <td>New character types</td>
235 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2249.html">N2249</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]236 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]237 </tr>
238 <tr>
239 <td>Unicode string literals</td>
240 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]241 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]242 </tr>
243 <tr>
244 <td>Raw string literals</td>
245 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]246 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]247 </tr>
248 <tr>
Richard Smith26b75c02012-03-09 22:27:51 +0000[diff] [blame]249 <td>Universal character names in literals</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]250 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2170.html">N2170</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]251 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]252 </tr>
253 <tr>
254 <td>User-defined literals</td>
255 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2765.pdf">N2765</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]256 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]257 </tr>
258 <tr>
259 <td>Standard Layout Types</td>
260 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2342.htm">N2342</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]261 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]262 </tr>
263 <tr>
Douglas Gregor26bae202011-10-28 19:44:09 +0000[diff] [blame]264 <td>Defaulted functions</td>
265 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]266 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor26bae202011-10-28 19:44:09 +0000[diff] [blame]267 </tr>
268 <tr>
269 <td>Deleted functions</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]270 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]271 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]272 </tr>
273 <tr>
274 <td>Extended friend declarations</td>
275 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1791.pdf">N1791</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]276 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]277 </tr>
278 <tr>
279 <td>Extending <code>sizeof</code></td>
Richard Smitha5ec58d2012-02-24 18:37:14 +0000[diff] [blame]280 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2253.html">N2253</a>
281 <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#850">DR850</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]282 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]283 </tr>
284 <tr>
285 <td>Inline namespaces</td>
286 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2535.htm">N2535</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]287 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]288 </tr>
289 <tr>
290 <td>Unrestricted unions</td>
291 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2544.pdf">N2544</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]292 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]293 </tr>
294 <tr>
295 <td>Local and unnamed types as template arguments</td>
296 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">N2657</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]297 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]298 </tr>
299 <tr>
300 <td>Range-based for</td>
301 <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html">N2930</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]302 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]303 </tr>
304 <tr>
305 <td>Explicit virtual overrides</td>
306 <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">N2928</a>
Richard Smitha5ec58d2012-02-24 18:37:14 +0000[diff] [blame]307 <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">N3206</a>
308 <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">N3272</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]309 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]310 </tr>
311 <tr>
312 <td>Minimal support for garbage collection and reachability-based leak detection</td>
313 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2670.htm">N2670</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]314 <td class="na" align="center">N/A <a href="#n2670">(2)</a></td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]315 </tr>
316 <tr>
317 <td>Allowing move constructors to throw [noexcept]</td>
David Blaikieb09a33c2011-11-02 15:13:40 +0000[diff] [blame]318 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3050.html">N3050</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]319 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]320 </tr>
321 <tr>
322 <td>Defining move special member functions</td>
David Blaikieb09a33c2011-11-02 15:13:40 +0000[diff] [blame]323 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3053.html">N3053</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]324 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]325 </tr>
Cedric Venet3d658642009-02-14 20:20:19 +0000[diff] [blame]326
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]327 <tr class="separator">
Benjamin Kramer8398bdb2011-11-05 10:11:36 +0000[diff] [blame]328 <th align="center" colspan="3">Concurrency</th>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]329 </tr>
330 <tr>
331 <td>Sequence points</td>
332 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2239.html">N2239</a></td>
Richard Smith02344ac2013-06-17 23:54:23 +0000[diff] [blame]333 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]334 </tr>
335 <tr>
336 <td>Atomic operations</td>
337 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html">N2427</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]338 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]339 </tr>
340 <tr>
341 <td>Strong Compare and Exchange</td>
342 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2748.html">N2748</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]343 <td class="full" align="center">Clang 3.1 <a href="#n2748">(3)</a></td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]344 </tr>
345 <tr>
346 <td>Bidirectional Fences</td>
347 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2752.htm">N2752</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]348 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]349 </tr>
Douglas Gregor08765a92010-12-21 05:43:31 +0000[diff] [blame]350
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]351 <tr>
352 <td>Memory model</td>
353 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2429.htm">N2429</a></td>
Richard Smith52a92502013-01-29 04:55:18 +0000[diff] [blame]354 <td class="full" align="center">Clang 3.2</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]355 </tr>
356 <tr>
357 <td>Data-dependency ordering: atomics and memory model</td>
358 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2664.htm">N2664</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]359 <td class="full" align="center">Clang 3.2 <a href="#n2664">(4)</a></td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]360 </tr>
361 <tr>
362 <td>Propagating exceptions</td>
363 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html">N2179</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]364 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]365 </tr>
366 <tr>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]367 <td>Allow atomics use in signal handlers</td>
368 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2547.htm">N2547</a></td>
Richard Smith24fd6c82012-05-23 01:38:11 +0000[diff] [blame]369 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]370 </tr>
371 <tr>
372 <td>Thread-local storage</td>
373 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2659.htm">N2659</a></td>
Richard Smith02344ac2013-06-17 23:54:23 +0000[diff] [blame]374 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]375 </tr>
376 <tr>
377 <td>Dynamic initialization and destruction with concurrency</td>
378 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2660.htm">N2660</a></td>
Richard Smith14416322013-02-22 09:31:00 +0000[diff] [blame]379 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]380 </tr>
Cedric Venet3d658642009-02-14 20:20:19 +0000[diff] [blame]381
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]382 <tr class="separator">
Richard Smith1e409d82012-02-24 18:42:08 +0000[diff] [blame]383 <th align="center" colspan="3">C99 Features in C++11</th>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]384 </tr>
385 <tr>
386 <td><code>__func__</code> predefined identifier</td>
387 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2340.htm">N2340</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]388 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]389 </tr>
390 <tr>
391 <td>C99 preprocessor</td>
392 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1653.htm">N1653</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]393 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]394 </tr>
395 <tr>
396 <td><code>long long</code></td>
397 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1811.pdf">N1811</a></td>
Michael J. Spencer45b636a2011-11-02 06:29:37 +0000[diff] [blame]398 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]399 </tr>
400 <tr>
401 <td>Extended integral types</td>
402 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1988.pdf">N1988</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]403 <td class="na" align="center">N/A <a href="#n1988">(5)</a></td>
Douglas Gregor43ac6d02011-10-14 23:21:49 +0000[diff] [blame]404 </tr>
Cedric Venet3d658642009-02-14 20:20:19 +0000[diff] [blame]405</table>
Richard Smith896e42d2013-03-12 19:56:09 +0000[diff] [blame]406
407<p>
408<span id="n2761">(1): The <code>[[carries_dependency]]</code> attribute
Richard Smithf72663f2013-03-18 21:57:52 +0000[diff] [blame]409has no effect.</span><br>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]410<span id="n2670">(2): No compiler changes are required for an implementation
411such as Clang that does not provide garbage collection.</span><br>
412<span id="n2748">(3): All compare-exchange operations are emitted as
Richard Smithf72663f2013-03-18 21:57:52 +0000[diff] [blame]413strong compare-exchanges.</span><br>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]414<span id="n2664">(4): <code>memory_order_consume</code> is lowered to
Richard Smithf72663f2013-03-18 21:57:52 +0000[diff] [blame]415<code>memory_order_acquire</code>.</span><br>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]416<span id="n1988">(5): No compiler changes are required for an implementation
417such as Clang that does not provide any extended integer types.
418<code>__int128</code> is not treated as an extended integer type,
419because changing <code>intmax_t</code> would be an ABI-incompatible
420change.</span>
Richard Smith896e42d2013-03-12 19:56:09 +0000[diff] [blame]421</p>
422
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]423<h2 id="cxx14">C++1y implementation status</h2>
424
Richard Smith7dae9292013-11-07 06:41:26 +0000[diff] [blame]425<p>Clang implements all of the
426<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3797.pdf">current draft</a>
427of the upcoming C++ language standard, provisionally named C++1y. The following
428table describes the Clang version in which each feature became available.</p>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]429
Richard Smith3139d662013-05-07 02:55:48 +0000[diff] [blame]430<p>You can use Clang in C++1y mode with the <code>-std=c++1y</code> option.</p>
Richard Smith7dc88642013-04-20 13:22:50 +0000[diff] [blame]431
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]432<table width="689" border="1" cellspacing="0">
433 <tr>
434 <th>Language Feature</th>
435 <th>C++1y Proposal</th>
436 <th>Available in Clang?</th>
437 </tr>
438 <tr>
439 <td>Tweak to certain C++ contextual conversions</td>
440 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3323.pdf">N3323</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]441 <td class="full" align="center">Clang 3.4</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]442 </tr>
443 <tr>
Richard Smith408de432013-04-20 12:44:32 +0000[diff] [blame]444 <td>Binary literals</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]445 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf">N3472</a></td>
Richard Smith2fcf0de2013-04-19 20:47:20 +0000[diff] [blame]446 <td class="full" align="center">Yes</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]447 </tr>
448 <tr>
Richard Smitha2c36462013-04-26 16:15:35 +0000[diff] [blame]449 <td>decltype(auto)</td>
Richard Smith6f616292013-05-09 18:53:17 +0000[diff] [blame]450 <td rowspan=2 style="vertical-align:middle"><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3638.html">N3638</a></td>
Richard Smith02344ac2013-06-17 23:54:23 +0000[diff] [blame]451 <td class="full" align="center">Clang 3.3</td>
Richard Smitha2c36462013-04-26 16:15:35 +0000[diff] [blame]452 </tr>
453 <tr>
Richard Smith96ba7c72013-04-20 12:47:36 +0000[diff] [blame]454 <td>Return type deduction for normal functions</td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]455 <td class="full" align="center">Clang 3.4</td>
Richard Smith96ba7c72013-04-20 12:47:36 +0000[diff] [blame]456 </tr>
Richard Smith408de432013-04-20 12:44:32 +0000[diff] [blame]457 <tr>
Richard Smith96ba7c72013-04-20 12:47:36 +0000[diff] [blame]458 <td>Initialized lambda captures</td>
Richard Smith6f616292013-05-09 18:53:17 +0000[diff] [blame]459 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3648.html">N3648</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]460 <td class="full" align="center">Clang 3.4</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]461 </tr>
462 <tr>
Richard Smithbb2d3782013-04-20 12:58:57 +0000[diff] [blame]463 <td>Generic lambdas</td>
Richard Smith6f616292013-05-09 18:53:17 +0000[diff] [blame]464 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3649.html">N3649</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]465 <td class="full" align="center">Clang 3.4</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]466 </tr>
467 <tr>
Richard Smithbb2d3782013-04-20 12:58:57 +0000[diff] [blame]468 <td>Variable templates</td>
Richard Smith6f616292013-05-09 18:53:17 +0000[diff] [blame]469 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3651.pdf">N3651</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]470 <td class="full" align="center">Clang 3.4</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]471 </tr>
472 <tr>
Richard Smith05a73f62013-04-20 12:49:36 +0000[diff] [blame]473 <td>Relaxing requirements on constexpr functions</td>
Richard Smith6f616292013-05-09 18:53:17 +0000[diff] [blame]474 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3652.html">N3652</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]475 <td class="full" align="center">Clang 3.4</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]476 </tr>
477 <tr>
Richard Smith96ba7c72013-04-20 12:47:36 +0000[diff] [blame]478 <td>Member initializers and aggregates</td>
Richard Smith6f616292013-05-09 18:53:17 +0000[diff] [blame]479 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html">N3653</a></td>
Richard Smith02344ac2013-06-17 23:54:23 +0000[diff] [blame]480 <td class="full" align="center">Clang 3.3</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]481 </tr>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]482 <tr>
Richard Smith8e95e302013-04-20 12:57:49 +0000[diff] [blame]483 <td>Clarifying memory allocation</td>
Richard Smith6f616292013-05-09 18:53:17 +0000[diff] [blame]484 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3664.html">N3664</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]485 <td class="full" align="center">Clang 3.4</td>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]486 </tr>
Richard Smithf9d2ccd2013-09-27 19:11:33 +0000[diff] [blame]487 <tr>
488 <td><tt>[[deprecated]]</tt> attribute</td>
489 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3760.html">N3760</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]490 <td class="full" align="center">Clang 3.4</td>
Richard Smithf9d2ccd2013-09-27 19:11:33 +0000[diff] [blame]491 </tr>
492 <tr>
493 <td>Single quotation mark as digit separator</td>
Richard Smith88407bb2013-11-05 08:27:00 +0000[diff] [blame]494 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3781.pdf">N3781</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]495 <td class="full" align="center">Clang 3.4</td>
Richard Smithf9d2ccd2013-09-27 19:11:33 +0000[diff] [blame]496 </tr>
497 <tr>
Benjamin Kramereb263e82013-09-27 19:35:09 +0000[diff] [blame]498 <td>C++ Sized Deallocation</td>
Richard Smith88407bb2013-11-05 08:27:00 +0000[diff] [blame]499 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3778.html">N3778</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]500 <td class="full" align="center">Clang 3.4</td>
Richard Smithf9d2ccd2013-09-27 19:11:33 +0000[diff] [blame]501 </tr>
Richard Smithaff7d352013-04-19 17:27:48 +0000[diff] [blame]502</table>
503
Richard Smith7dae9292013-11-07 06:41:26 +0000[diff] [blame]504<!--
505<h2 id="cxx17">C++1z implementation status</h2>
506
507<p>Clang implements none of the upcoming C++ language standard,
508provisionally named C++1z. The following table describes which C++1z features
509have been implemented in Clang and in which Clang version they became
510available.</p>
511
512<p>You can use Clang in C++1z mode with the <code>-std=c++1z</code> option.</p>
513-->
514
Bill Wendlingc78e5b32013-11-28 00:33:42 +0000[diff] [blame]515<h2 id="ts">Technical specifications and standing documents</h2>
516
517<p>ISO C++ also publishes a number of documents describing additional language
518and library features that are not part of standard C++. The following table
519describes which language features have been implemented in Clang and in which
520Clang version they became available:</p>
521
522<table width="689" border="1" cellspacing="0">
523 <tr>
524 <th>Document</th>
525 <th>Latest draft</th>
526 <th>Available in Clang?</th>
527 </tr>
528 <tr>
529 <td>SD-6: SG10 feature test recommendations</td>
530 <td><a href="http://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations">SD-6</a></td>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]531 <td class="full" align="center">Clang 3.4 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3745">N3745</a>)</td>
Bill Wendlingc78e5b32013-11-28 00:33:42 +0000[diff] [blame]532 </tr>
533 <tr>
534 <td>[DRAFT TS] Array extensions (arrays of runtime bound)</td>
535 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3820.html">N3820</a></td>
536 <td class="none" align="center">No</td>
537 </tr>
Stephen Hines651f13c2014-04-23 16:59:28 -0700[diff] [blame^]538 <tr>
539 <td>[DRAFT TS] Library fundamentals (invocation type traits)</td>
540 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3908.html">N3908</a></td>
541 <td class="none" align="center">No</td>
542 </tr>
543 <tr>
544 <td>[DRAFT TS] Concepts</td>
545 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3929.pdf">N3929</a></td>
546 <td class="none" align="center">No</td>
547 </tr>
Bill Wendlingc78e5b32013-11-28 00:33:42 +0000[diff] [blame]548</table>
549
Cedric Venet3d658642009-02-14 20:20:19 +0000[diff] [blame]550</div>
551</body>
552</html>