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Alp Toker05f89432013-12-06 06:35:49 +000026<h1>C++14, C++11 and C++98 Support in Clang</h1>
Cedric Venet084381332009-02-14 20:20:19 +000027<!--*************************************************************************-->
Douglas Gregor0799d912009-06-27 19:33:58 +000028<p>Last updated: $Date$</p>
Cedric Venet084381332009-02-14 20:20:19 +000029
Alp Toker05f89432013-12-06 06:35:49 +000030<p>Clang fully implements all published ISO C++ standards including <a
Richard Smith60586342013-12-09 08:52:23 +000031href="#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.
Alp Toker05f89432013-12-06 06:35:49 +000033
Richard Smith60586342013-12-09 08:52:23 +000034<p>The Clang community is continually striving to improve C++ standards
Alp Toker05f89432013-12-06 06:35:49 +000035compliance 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
Richard Smith60586342013-12-09 08:52:23 +000043<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 Smith18743de2012-02-24 18:42:08 +000047<h2 id="cxx98">C++98 implementation status</h2>
48
Alp Toker05f89432013-12-06 06:35:49 +000049<p>Clang implements all of the ISO C++ 1998 standard
Douglas Gregor17aa45d2011-07-21 17:46:15 +000050 (including the defects addressed in the ISO C++ 2003 standard)
Richard Smith60586342013-12-09 08:52:23 +000051 except for <tt>export</tt> (which has been removed in C++11).
Douglas Gregorbb26a922010-02-05 23:51:14 +000052
Richard Smith18743de2012-02-24 18:42:08 +000053<h2 id="cxx11">C++11 implementation status</h2>
Chris Lattner6fe37482010-05-21 20:59:40 +000054
Richard Smith25b555a2013-04-19 17:00:31 +000055 <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 Lattner6fe37482010-05-21 20:59:40 +000059
Richard Smith531c9a02013-03-10 00:11:00 +000060<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 Smith2ddcbab2012-10-23 00:32:41 +000065work with Clang in C++11 mode. Patches are also needed to make
Richard Smith96c07b12013-11-05 09:12:55 +000066<a href="libstdc++4.6-clang11.patch">libstdc++-4.6</a>
Richard Smith2ddcbab2012-10-23 00:32:41 +000067and <a href="libstdc++4.7-clang11.patch">libstdc++-4.7</a> work with Clang
Richard Smith25b555a2013-04-19 17:00:31 +000068releases prior to version 3.2 in C++11 mode. <tt>thread_local</tt> support
Richard Smithe0cabb72013-12-09 08:55:59 +000069currently requires the C++ runtime library from g++-4.8 or later.</p>
Jeffrey Yasskincb407572011-03-29 22:27:50 +000070
Cedric Venet084381332009-02-14 20:20:19 +000071<table width="689" border="1" cellspacing="0">
Douglas Gregor1f64b592011-10-14 23:21:49 +000072 <tr>
Benjamin Kramer1c9e1582011-11-05 10:11:36 +000073 <th>Language Feature</th>
Richard Smith18743de2012-02-24 18:42:08 +000074 <th>C++11 Proposal</th>
Benjamin Kramer1c9e1582011-11-05 10:11:36 +000075 <th>Available in Clang?</th>
Douglas Gregor1f64b592011-10-14 23:21:49 +000076 </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. Spencere73bd642011-11-02 06:29:37 +000080 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +000081 </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 Kramer1c9e1582011-11-05 10:11:36 +000085 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +000086 </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. Spencere73bd642011-11-02 06:29:37 +000090 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +000091 </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 Kramer1c9e1582011-11-05 10:11:36 +000095 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +000096 </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. Spencere73bd642011-11-02 06:29:37 +0000100 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000101 </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. Spencere73bd642011-11-02 06:29:37 +0000105 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000106 </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 Smith607d6312012-05-23 01:38:11 +0000110 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000111 </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. Spencere73bd642011-11-02 06:29:37 +0000115 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000116 </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. Spencere73bd642011-11-02 06:29:37 +0000120 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000121 </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. Spencere73bd642011-11-02 06:29:37 +0000125 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000126 </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. Spencere73bd642011-11-02 06:29:37 +0000130 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000131 </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. Spencere73bd642011-11-02 06:29:37 +0000135 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000136 </tr>
137 <tr>
Douglas Gregor34b2e8b2012-02-23 03:02:32 +0000138 <td>Lambda expressions</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000139 <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2927.pdf">N2927</a></td>
Richard Smith607d6312012-05-23 01:38:11 +0000140 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000141 </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. Spencere73bd642011-11-02 06:29:37 +0000145 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000146 </tr>
147 <tr>
Douglas Gregor05989622012-04-10 20:00:33 +0000148 <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 Smith607d6312012-05-23 01:38:11 +0000150 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor05989622012-04-10 20:00:33 +0000151 </tr>
152 <tr>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000153 <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. Spencere73bd642011-11-02 06:29:37 +0000155 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000156 </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. Spencere73bd642011-11-02 06:29:37 +0000160 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000161 </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. Spencere73bd642011-11-02 06:29:37 +0000165 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000166 </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. Spencere73bd642011-11-02 06:29:37 +0000170 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000171 </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. Spencere73bd642011-11-02 06:29:37 +0000175 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000176 </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. Spencere73bd642011-11-02 06:29:37 +0000180 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000181 </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. Spencere73bd642011-11-02 06:29:37 +0000185 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000186 </tr>
187 <tr>
188 <td>Forward declarations for enums</td>
Richard Smith4b38ded2012-03-14 23:13:10 +0000189 <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 Smith607d6312012-05-23 01:38:11 +0000191 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000192 </tr>
193 <tr>
Richard Smith3dd73db2014-01-17 00:11:48 +0000194 <td>Standardized attribute syntax</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000195 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf">N2761</a></td>
Richard Smith99247722013-06-17 23:54:23 +0000196 <td class="full" align="center">Clang 3.3 <a href="#n2761">(1)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000197 </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 Smith607d6312012-05-23 01:38:11 +0000201 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000202 </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 Smith99247722013-06-17 23:54:23 +0000206 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000207 </tr>
208 <!-- Skipped N1627: Conditionally-support behavior -->
209 <!-- Skipped N1727: Changing Undefined Behavior into Diagnosable Errors -->
210 <tr>
211 <td>Delegating constructors</td>
212 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1986.pdf">N1986</a></td>
Benjamin Kramer1c9e1582011-11-05 10:11:36 +0000213 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000214 </tr>
215 <tr>
216 <td>Inheriting constructors</td>
217 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2540.htm">N2540</a></td>
Richard Smith99247722013-06-17 23:54:23 +0000218 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000219 </tr>
220 <tr>
221 <td>Explicit conversion operators</td>
222 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf">N2437</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000223 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000224 </tr>
225 <tr>
226 <td>New character types</td>
227 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2249.html">N2249</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000228 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000229 </tr>
230 <tr>
231 <td>Unicode string literals</td>
232 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000233 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000234 </tr>
235 <tr>
236 <td>Raw string literals</td>
237 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000238 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000239 </tr>
240 <tr>
Richard Smith2a70e652012-03-09 22:27:51 +0000241 <td>Universal character names in literals</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000242 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2170.html">N2170</a></td>
Richard Smith607d6312012-05-23 01:38:11 +0000243 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000244 </tr>
245 <tr>
246 <td>User-defined literals</td>
247 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2765.pdf">N2765</a></td>
Richard Smith607d6312012-05-23 01:38:11 +0000248 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000249 </tr>
250 <tr>
251 <td>Standard Layout Types</td>
252 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2342.htm">N2342</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000253 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000254 </tr>
255 <tr>
Douglas Gregor7ff1e7e2011-10-28 19:44:09 +0000256 <td>Defaulted functions</td>
257 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000258 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor7ff1e7e2011-10-28 19:44:09 +0000259 </tr>
260 <tr>
261 <td>Deleted functions</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000262 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000263 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000264 </tr>
265 <tr>
266 <td>Extended friend declarations</td>
267 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1791.pdf">N1791</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000268 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000269 </tr>
270 <tr>
271 <td>Extending <code>sizeof</code></td>
Richard Smith4e837622012-02-24 18:37:14 +0000272 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2253.html">N2253</a>
273 <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#850">DR850</a></td>
Richard Smith607d6312012-05-23 01:38:11 +0000274 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000275 </tr>
276 <tr>
277 <td>Inline namespaces</td>
278 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2535.htm">N2535</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000279 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000280 </tr>
281 <tr>
282 <td>Unrestricted unions</td>
283 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2544.pdf">N2544</a></td>
Richard Smith607d6312012-05-23 01:38:11 +0000284 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000285 </tr>
286 <tr>
287 <td>Local and unnamed types as template arguments</td>
288 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">N2657</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000289 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000290 </tr>
291 <tr>
292 <td>Range-based for</td>
293 <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html">N2930</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000294 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000295 </tr>
296 <tr>
297 <td>Explicit virtual overrides</td>
298 <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">N2928</a>
Richard Smith4e837622012-02-24 18:37:14 +0000299 <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">N3206</a>
300 <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">N3272</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000301 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000302 </tr>
303 <tr>
304 <td>Minimal support for garbage collection and reachability-based leak detection</td>
305 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2670.htm">N2670</a></td>
Richard Smith6d244d72012-03-11 03:06:00 +0000306 <td class="na" align="center">N/A</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000307 </tr>
308 <tr>
309 <td>Allowing move constructors to throw [noexcept]</td>
David Blaikie50361612011-11-02 15:13:40 +0000310 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3050.html">N3050</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000311 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000312 </tr>
313 <tr>
314 <td>Defining move special member functions</td>
David Blaikie50361612011-11-02 15:13:40 +0000315 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3053.html">N3053</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000316 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000317 </tr>
Cedric Venet084381332009-02-14 20:20:19 +0000318
Douglas Gregor1f64b592011-10-14 23:21:49 +0000319 <tr class="separator">
Benjamin Kramer1c9e1582011-11-05 10:11:36 +0000320 <th align="center" colspan="3">Concurrency</th>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000321 </tr>
322 <tr>
323 <td>Sequence points</td>
324 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2239.html">N2239</a></td>
Richard Smith99247722013-06-17 23:54:23 +0000325 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000326 </tr>
327 <tr>
328 <td>Atomic operations</td>
329 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html">N2427</a></td>
Richard Smith607d6312012-05-23 01:38:11 +0000330 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000331 </tr>
332 <tr>
333 <td>Strong Compare and Exchange</td>
334 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2748.html">N2748</a></td>
Richard Smith9deb9d92013-03-12 19:56:09 +0000335 <td class="full" align="center">Clang 3.1 <a href="#n2748">(2)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000336 </tr>
337 <tr>
338 <td>Bidirectional Fences</td>
339 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2752.htm">N2752</a></td>
Richard Smith607d6312012-05-23 01:38:11 +0000340 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000341 </tr>
Douglas Gregor6b6e0822010-12-21 05:43:31 +0000342
Douglas Gregor1f64b592011-10-14 23:21:49 +0000343 <tr>
344 <td>Memory model</td>
345 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2429.htm">N2429</a></td>
Richard Smithbc4fc772013-01-29 04:55:18 +0000346 <td class="full" align="center">Clang 3.2</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000347 </tr>
348 <tr>
349 <td>Data-dependency ordering: atomics and memory model</td>
350 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2664.htm">N2664</a></td>
Richard Smith9deb9d92013-03-12 19:56:09 +0000351 <td class="full" align="center">Clang 3.2 <a href="#n2664">(3)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000352 </tr>
353 <tr>
354 <td>Propagating exceptions</td>
355 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html">N2179</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000356 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000357 </tr>
358 <tr>
359 <td>Abandoning a process and at_quick_exit</td>
360 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2440.htm">N2440</a></td>
Richard Smithd3b64872012-04-13 01:02:19 +0000361 <td class="na" align="center">N/A</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000362 </tr>
363 <tr>
364 <td>Allow atomics use in signal handlers</td>
365 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2547.htm">N2547</a></td>
Richard Smith607d6312012-05-23 01:38:11 +0000366 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000367 </tr>
368 <tr>
369 <td>Thread-local storage</td>
370 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2659.htm">N2659</a></td>
Richard Smith99247722013-06-17 23:54:23 +0000371 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000372 </tr>
373 <tr>
374 <td>Dynamic initialization and destruction with concurrency</td>
375 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2660.htm">N2660</a></td>
Richard Smith537a8342013-02-22 09:31:00 +0000376 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000377 </tr>
Cedric Venet084381332009-02-14 20:20:19 +0000378
Douglas Gregor1f64b592011-10-14 23:21:49 +0000379 <tr class="separator">
Richard Smith18743de2012-02-24 18:42:08 +0000380 <th align="center" colspan="3">C99 Features in C++11</th>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000381 </tr>
382 <tr>
383 <td><code>__func__</code> predefined identifier</td>
384 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2340.htm">N2340</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000385 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000386 </tr>
387 <tr>
388 <td>C99 preprocessor</td>
389 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1653.htm">N1653</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000390 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000391 </tr>
392 <tr>
393 <td><code>long long</code></td>
394 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1811.pdf">N1811</a></td>
Michael J. Spencere73bd642011-11-02 06:29:37 +0000395 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000396 </tr>
397 <tr>
398 <td>Extended integral types</td>
399 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1988.pdf">N1988</a></td>
Richard Smith8024ee52013-03-18 21:44:56 +0000400 <td class="na" align="center">N/A <a href="#n1988">(4)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000401 </tr>
Cedric Venet084381332009-02-14 20:20:19 +0000402</table>
Richard Smith9deb9d92013-03-12 19:56:09 +0000403
404<p>
405<span id="n2761">(1): The <code>[[carries_dependency]]</code> attribute
Richard Smith38546ed2013-03-18 21:57:52 +0000406has no effect.</span><br>
Richard Smith9deb9d92013-03-12 19:56:09 +0000407<span id="n2748">(2): All compare-exchange operations are emitted as
Richard Smith38546ed2013-03-18 21:57:52 +0000408strong compare-exchanges.</span><br>
Richard Smith9deb9d92013-03-12 19:56:09 +0000409<span id="n2664">(3): <code>memory_order_consume</code> is lowered to
Richard Smith38546ed2013-03-18 21:57:52 +0000410<code>memory_order_acquire</code>.</span><br>
Richard Smith8024ee52013-03-18 21:44:56 +0000411<span id="n1988">(4): <code>__int128</code> is not treated as an extended
412integer type, because changing <code>intmax_t</code> would be an
413ABI-incompatible change.</span>
Richard Smith9deb9d92013-03-12 19:56:09 +0000414</p>
415
Richard Smith91725202013-04-19 17:27:48 +0000416<h2 id="cxx14">C++1y implementation status</h2>
417
Richard Smith76b9f232013-11-07 06:41:26 +0000418<p>Clang implements all of the
419<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3797.pdf">current draft</a>
420of the upcoming C++ language standard, provisionally named C++1y. The following
421table describes the Clang version in which each feature became available.</p>
Richard Smith91725202013-04-19 17:27:48 +0000422
Richard Smithbadcd982013-05-07 02:55:48 +0000423<p>You can use Clang in C++1y mode with the <code>-std=c++1y</code> option.</p>
Richard Smith4cf9a1e2013-04-20 13:22:50 +0000424
Richard Smith91725202013-04-19 17:27:48 +0000425<table width="689" border="1" cellspacing="0">
426 <tr>
427 <th>Language Feature</th>
428 <th>C++1y Proposal</th>
429 <th>Available in Clang?</th>
430 </tr>
431 <tr>
432 <td>Tweak to certain C++ contextual conversions</td>
433 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3323.pdf">N3323</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000434 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000435 </tr>
436 <tr>
Richard Smith0fa4fce2013-04-20 12:44:32 +0000437 <td>Binary literals</td>
Richard Smith91725202013-04-19 17:27:48 +0000438 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf">N3472</a></td>
Richard Smithc5c27f22013-04-19 20:47:20 +0000439 <td class="full" align="center">Yes</td>
Richard Smith91725202013-04-19 17:27:48 +0000440 </tr>
441 <tr>
Richard Smith74aeef52013-04-26 16:15:35 +0000442 <td>decltype(auto)</td>
Richard Smithf2f6e1142013-05-09 18:53:17 +0000443 <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 Smith99247722013-06-17 23:54:23 +0000444 <td class="full" align="center">Clang 3.3</td>
Richard Smith74aeef52013-04-26 16:15:35 +0000445 </tr>
446 <tr>
Richard Smith5db8b282013-04-20 12:47:36 +0000447 <td>Return type deduction for normal functions</td>
Richard Smith7fe89622014-02-03 06:58:08 +0000448 <td class="full" align="center">Clang 3.4</td>
Richard Smith5db8b282013-04-20 12:47:36 +0000449 </tr>
Richard Smith0fa4fce2013-04-20 12:44:32 +0000450 <tr>
Richard Smith5db8b282013-04-20 12:47:36 +0000451 <td>Initialized lambda captures</td>
Richard Smithf2f6e1142013-05-09 18:53:17 +0000452 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3648.html">N3648</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000453 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000454 </tr>
455 <tr>
Richard Smith7898d7b2013-04-20 12:58:57 +0000456 <td>Generic lambdas</td>
Richard Smithf2f6e1142013-05-09 18:53:17 +0000457 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3649.html">N3649</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000458 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000459 </tr>
460 <tr>
Richard Smith7898d7b2013-04-20 12:58:57 +0000461 <td>Variable templates</td>
Richard Smithf2f6e1142013-05-09 18:53:17 +0000462 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3651.pdf">N3651</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000463 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000464 </tr>
465 <tr>
Richard Smith7feda2f2013-04-20 12:49:36 +0000466 <td>Relaxing requirements on constexpr functions</td>
Richard Smithf2f6e1142013-05-09 18:53:17 +0000467 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3652.html">N3652</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000468 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000469 </tr>
470 <tr>
Richard Smith5db8b282013-04-20 12:47:36 +0000471 <td>Member initializers and aggregates</td>
Richard Smithf2f6e1142013-05-09 18:53:17 +0000472 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html">N3653</a></td>
Richard Smith99247722013-06-17 23:54:23 +0000473 <td class="full" align="center">Clang 3.3</td>
Richard Smith91725202013-04-19 17:27:48 +0000474 </tr>
Richard Smith91725202013-04-19 17:27:48 +0000475 <tr>
Richard Smithd3a73862013-04-20 12:57:49 +0000476 <td>Clarifying memory allocation</td>
Richard Smithf2f6e1142013-05-09 18:53:17 +0000477 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3664.html">N3664</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000478 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000479 </tr>
Richard Smith3ca005b2013-09-27 19:11:33 +0000480 <tr>
481 <td><tt>[[deprecated]]</tt> attribute</td>
482 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3760.html">N3760</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000483 <td class="full" align="center">Clang 3.4</td>
Richard Smith3ca005b2013-09-27 19:11:33 +0000484 </tr>
485 <tr>
486 <td>Single quotation mark as digit separator</td>
Richard Smith2d1d3ca2013-11-05 08:27:00 +0000487 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3781.pdf">N3781</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000488 <td class="full" align="center">Clang 3.4</td>
Richard Smith3ca005b2013-09-27 19:11:33 +0000489 </tr>
490 <tr>
Benjamin Kramer8ba47d02013-09-27 19:35:09 +0000491 <td>C++ Sized Deallocation</td>
Richard Smith2d1d3ca2013-11-05 08:27:00 +0000492 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3778.html">N3778</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000493 <td class="full" align="center">Clang 3.4</td>
Richard Smith3ca005b2013-09-27 19:11:33 +0000494 </tr>
Richard Smith91725202013-04-19 17:27:48 +0000495</table>
496
Richard Smith76b9f232013-11-07 06:41:26 +0000497<!--
498<h2 id="cxx17">C++1z implementation status</h2>
499
500<p>Clang implements none of the upcoming C++ language standard,
501provisionally named C++1z. The following table describes which C++1z features
502have been implemented in Clang and in which Clang version they became
503available.</p>
504
505<p>You can use Clang in C++1z mode with the <code>-std=c++1z</code> option.</p>
506-->
507
Richard Smith91e474f2013-11-27 22:58:16 +0000508<h2 id="ts">Technical specifications and standing documents</h2>
509
510<p>ISO C++ also publishes a number of documents describing additional language
511and library features that are not part of standard C++. The following table
512describes which language features have been implemented in Clang and in which
513Clang version they became available:</p>
514
515<table width="689" border="1" cellspacing="0">
516 <tr>
517 <th>Document</th>
518 <th>Latest draft</th>
519 <th>Available in Clang?</th>
520 </tr>
521 <tr>
522 <td>SD-6: SG10 feature test recommendations</td>
523 <td><a href="http://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations">SD-6</a></td>
Richard Smith7fe89622014-02-03 06:58:08 +0000524 <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>
Richard Smith91e474f2013-11-27 22:58:16 +0000525 </tr>
526 <tr>
527 <td>[DRAFT TS] Array extensions (arrays of runtime bound)</td>
528 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3820.html">N3820</a></td>
529 <td class="none" align="center">No</td>
530 </tr>
Richard Smith3a0ed872014-02-15 00:29:00 +0000531 <tr>
532 <td>[DRAFT TS] Library fundamentals (invocation type traits)</td>
Richard Smith586cd942014-03-04 20:22:54 +0000533 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3908.html">N3908</a></td>
Richard Smith3a0ed872014-02-15 00:29:00 +0000534 <td class="none" align="center">No</td>
535 </tr>
536 <tr>
Richard Smith3a0ed872014-02-15 00:29:00 +0000537 <td>[DRAFT TS] Concepts</td>
Richard Smith586cd942014-03-04 20:22:54 +0000538 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3929.pdf">N3929</a></td>
Richard Smith3a0ed872014-02-15 00:29:00 +0000539 <td class="none" align="center">No</td>
540 </tr>
Richard Smith91e474f2013-11-27 22:58:16 +0000541</table>
542
Cedric Venet084381332009-02-14 20:20:19 +0000543</div>
544</body>
545</html>