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Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	5	<title>Clang - C++17, C++14, C++11 and C++98 Status</title>
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Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	27	<h1>C++ Support in Clang</h1>
Cedric Venet	08438133	2009-02-14 20:20:19 +0000	[diff] [blame]	28	<!--*************************************************************************-->
Douglas Gregor	0799d91	2009-06-27 19:33:58 +0000	[diff] [blame]	29	<p>Last updated: $Date$</p>
Cedric Venet	08438133	2009-02-14 20:20:19 +0000	[diff] [blame]	30
Richard Smith	0188110	2016-09-28 19:22:36 +0000	[diff] [blame]	31	<p>Clang fully implements all published ISO C++ standards (<a
				32	href="#cxx98">C++98 / C++03</a>, <a
				33	href="#cxx11">C++11</a>, and <a
				34	href="#cxx14">C++14</a>), and most of the upcoming <a
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	35	href="#cxx17">C++17</a> standard.
Alp Toker	05f8943	2013-12-06 06:35:49 +0000	[diff] [blame]	36
Richard Smith	6058634	2013-12-09 08:52:23 +0000	[diff] [blame]	37	<p>The Clang community is continually striving to improve C++ standards
Alp Toker	05f8943	2013-12-06 06:35:49 +0000	[diff] [blame]	38	compliance between releases by submitting and tracking <a
				39	href="cxx_dr_status.html">C++ Defect Reports</a> and implementing resolutions
				40	as they become available.</p>
				41
				42	<p>Experimental work is also under way to implement <a href="#ts">C++ Technical
				43	Specifications</a> that will help drive the future of the C++ programming
				44	language.</p>
				45
Richard Smith	6058634	2013-12-09 08:52:23 +0000	[diff] [blame]	46	<p>The <a href="http://llvm.org/bugs/">LLVM bug tracker</a> contains Clang
				47	C++ components that track known bugs with Clang's language conformance in
				48	each language mode.</p>
				49
Richard Smith	18743de	2012-02-24 18:42:08 +0000	[diff] [blame]	50	<h2 id="cxx98">C++98 implementation status</h2>
				51
Alp Toker	05f8943	2013-12-06 06:35:49 +0000	[diff] [blame]	52	<p>Clang implements all of the ISO C++ 1998 standard
Douglas Gregor	17aa45d	2011-07-21 17:46:15 +0000	[diff] [blame]	53	(including the defects addressed in the ISO C++ 2003 standard)
Richard Smith	707e3ba	2014-06-22 16:00:05 +0000	[diff] [blame]	54	except for <tt>export</tt> (which was removed in C++11).
Douglas Gregor	bb26a92	2010-02-05 23:51:14 +0000	[diff] [blame]	55
Richard Smith	18743de	2012-02-24 18:42:08 +0000	[diff] [blame]	56	<h2 id="cxx11">C++11 implementation status</h2>
Chris Lattner	6fe3748	2010-05-21 20:59:40 +0000	[diff] [blame]	57
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	58	<p>Clang 3.3 and later implement all of the <a
				59	href="http://www.iso.org/iso/catalogue_detail.htm?csnumber=50372">ISO
				60	C++ 2011 standard</a>.
Chris Lattner	6fe3748	2010-05-21 20:59:40 +0000	[diff] [blame]	61
Richard Smith	531c9a0	2013-03-10 00:11:00 +0000	[diff] [blame]	62	<p>By default, Clang builds C++ code according to the C++98 standard, with many
				63	C++11 features accepted as extensions. You can use Clang in C++11 mode with the
				64	<code>-std=c++11</code> option. Clang's C++11 mode can be used
Richard Smith	0188110	2016-09-28 19:22:36 +0000	[diff] [blame]	65	with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++.
Jeffrey Yasskin	cb40757	2011-03-29 22:27:50 +0000	[diff] [blame]	66
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	67	<details>
				68	<summary>List of features and minimum Clang version with support</summary>
				69
Cedric Venet	08438133	2009-02-14 20:20:19 +0000	[diff] [blame]	70	<table width="689" border="1" cellspacing="0">
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	71	<tr>
Benjamin Kramer	1c9e158	2011-11-05 10:11:36 +0000	[diff] [blame]	72	<th>Language Feature</th>
Richard Smith	18743de	2012-02-24 18:42:08 +0000	[diff] [blame]	73	<th>C++11 Proposal</th>
Benjamin Kramer	1c9e158	2011-11-05 10:11:36 +0000	[diff] [blame]	74	<th>Available in Clang?</th>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	75	</tr>
				76	<tr>
				77	<td>Rvalue references</td>
				78	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html">N2118</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	79	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	80	</tr>
				81	<tr>
				82	<td>    Rvalue references for <code>*this</code></td>
				83	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2439.htm">N2439</a></td>
Benjamin Kramer	1c9e158	2011-11-05 10:11:36 +0000	[diff] [blame]	84	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	85	</tr>
				86	<tr>
				87	<td>Initialization of class objects by rvalues</td>
				88	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1610.html">N1610</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	89	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	90	</tr>
				91	<tr>
				92	<td>Non-static data member initializers</td>
				93	<td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2008/n2756.htm">N2756</a></td>
Benjamin Kramer	1c9e158	2011-11-05 10:11:36 +0000	[diff] [blame]	94	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	95	</tr>
				96	<tr>
				97	<td>Variadic templates</td>
				98	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2242.pdf">N2242</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	99	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	100	</tr>
				101	<tr>
				102	<td>    Extending variadic template template parameters</td>
				103	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf">N2555</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	104	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	105	</tr>
				106	<tr>
				107	<td>Initializer lists</td>
				108	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2672.htm">N2672</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	109	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	110	</tr>
				111	<tr>
				112	<td>Static assertions</td>
				113	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html">N1720</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	114	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	115	</tr>
				116	<tr>
				117	<td><code>auto</code>-typed variables</td>
				118	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1984.pdf">N1984</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	119	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	120	</tr>
				121	<tr>
				122	<td>    Multi-declarator <code>auto</code></td>
				123	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1737.pdf">N1737</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	124	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	125	</tr>
				126	<tr>
				127	<td>    Removal of auto as a storage-class specifier</td>
				128	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2546.htm">N2546</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	129	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	130	</tr>
				131	<tr>
				132	<td>    New function declarator syntax</td>
				133	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2541.htm">N2541</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	134	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	135	</tr>
				136	<tr>
Douglas Gregor	34b2e8b	2012-02-23 03:02:32 +0000	[diff] [blame]	137	<td>Lambda expressions</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	138	<td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2927.pdf">N2927</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	139	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	140	</tr>
				141	<tr>
				142	<td>Declared type of an expression</td>
				143	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2343.pdf">N2343</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	144	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	145	</tr>
				146	<tr>
Douglas Gregor	0598962	2012-04-10 20:00:33 +0000	[diff] [blame]	147	<td>    Incomplete return types</td>
				148	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3276.pdf">N3276</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	149	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	0598962	2012-04-10 20:00:33 +0000	[diff] [blame]	150	</tr>
				151	<tr>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	152	<td>Right angle brackets</td>
				153	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html">N1757</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	154	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	155	</tr>
				156	<tr>
				157	<td>Default template arguments for function templates</td>
				158	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#226">DR226</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	159	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	160	</tr>
				161	<tr>
				162	<td>Solving the SFINAE problem for expressions</td>
				163	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2634.html">DR339</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	164	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	165	</tr>
				166	<tr>
				167	<td>Alias templates</td>
				168	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf">N2258</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	169	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	170	</tr>
				171	<tr>
				172	<td>Extern templates</td>
				173	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1987.htm">N1987</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	174	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	175	</tr>
				176	<tr>
				177	<td>Null pointer constant</td>
				178	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf">N2431</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	179	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	180	</tr>
				181	<tr>
				182	<td>Strongly-typed enums</td>
				183	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2347.pdf">N2347</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	184	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	185	</tr>
				186	<tr>
				187	<td>Forward declarations for enums</td>
Richard Smith	4b38ded	2012-03-14 23:13:10 +0000	[diff] [blame]	188	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2764.pdf">N2764</a>
				189	<br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1206">DR1206</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	190	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	191	</tr>
				192	<tr>
Richard Smith	3dd73db	2014-01-17 00:11:48 +0000	[diff] [blame]	193	<td>Standardized attribute syntax</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	194	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf">N2761</a></td>
Richard Smith	9924772	2013-06-17 23:54:23 +0000	[diff] [blame]	195	<td class="full" align="center">Clang 3.3 <a href="#n2761">(1)</a></td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	196	</tr>
				197	<tr>
				198	<td>Generalized constant expressions</td>
				199	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2235.pdf">N2235</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	200	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	201	</tr>
				202	<tr>
				203	<td>Alignment support</td>
				204	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2341.pdf">N2341</a></td>
Richard Smith	9924772	2013-06-17 23:54:23 +0000	[diff] [blame]	205	<td class="full" align="center">Clang 3.3</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	206	</tr>
Richard Smith	7e34fbd	2014-03-14 21:21:24 +0000	[diff] [blame]	207	<tr>
				208	<td>Conditionally-support behavior</td>
				209	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1627.pdf">N1627</a></td>
				210	<td class="full" align="center">Clang 2.9</td>
				211	</tr>
				212	<tr>
				213	<td>Changing undefined behavior into diagnosable errors</td>
				214	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1727.pdf">N1727</a></td>
				215	<td class="full" align="center">Clang 2.9</td>
				216	</tr>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	217	<tr>
				218	<td>Delegating constructors</td>
				219	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1986.pdf">N1986</a></td>
Benjamin Kramer	1c9e158	2011-11-05 10:11:36 +0000	[diff] [blame]	220	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	221	</tr>
				222	<tr>
				223	<td>Inheriting constructors</td>
				224	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2540.htm">N2540</a></td>
Richard Smith	9924772	2013-06-17 23:54:23 +0000	[diff] [blame]	225	<td class="full" align="center">Clang 3.3</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	226	</tr>
				227	<tr>
				228	<td>Explicit conversion operators</td>
				229	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf">N2437</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	230	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	231	</tr>
				232	<tr>
				233	<td>New character types</td>
				234	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2249.html">N2249</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	235	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	236	</tr>
				237	<tr>
				238	<td>Unicode string literals</td>
				239	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	240	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	241	</tr>
				242	<tr>
				243	<td>Raw string literals</td>
				244	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	245	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	246	</tr>
				247	<tr>
Richard Smith	2a70e65	2012-03-09 22:27:51 +0000	[diff] [blame]	248	<td>Universal character names in literals</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	249	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2170.html">N2170</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	250	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	251	</tr>
				252	<tr>
				253	<td>User-defined literals</td>
				254	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2765.pdf">N2765</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	255	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	256	</tr>
				257	<tr>
				258	<td>Standard Layout Types</td>
				259	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2342.htm">N2342</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	260	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	261	</tr>
				262	<tr>
Douglas Gregor	7ff1e7e	2011-10-28 19:44:09 +0000	[diff] [blame]	263	<td>Defaulted functions</td>
				264	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	265	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	7ff1e7e	2011-10-28 19:44:09 +0000	[diff] [blame]	266	</tr>
				267	<tr>
				268	<td>Deleted functions</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	269	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	270	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	271	</tr>
				272	<tr>
				273	<td>Extended friend declarations</td>
				274	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1791.pdf">N1791</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	275	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	276	</tr>
				277	<tr>
				278	<td>Extending <code>sizeof</code></td>
Richard Smith	4e83762	2012-02-24 18:37:14 +0000	[diff] [blame]	279	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2253.html">N2253</a>
				280	<br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#850">DR850</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	281	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	282	</tr>
				283	<tr>
				284	<td>Inline namespaces</td>
				285	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2535.htm">N2535</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	286	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	287	</tr>
				288	<tr>
				289	<td>Unrestricted unions</td>
				290	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2544.pdf">N2544</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	291	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	292	</tr>
				293	<tr>
				294	<td>Local and unnamed types as template arguments</td>
				295	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">N2657</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	296	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	297	</tr>
				298	<tr>
				299	<td>Range-based for</td>
				300	<td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html">N2930</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	301	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	302	</tr>
				303	<tr>
				304	<td>Explicit virtual overrides</td>
				305	<td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">N2928</a>
Richard Smith	4e83762	2012-02-24 18:37:14 +0000	[diff] [blame]	306	<br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">N3206</a>
				307	<br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">N3272</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	308	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	309	</tr>
				310	<tr>
				311	<td>Minimal support for garbage collection and reachability-based leak detection</td>
				312	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2670.htm">N2670</a></td>
Richard Smith	d997cce	2014-03-14 20:26:09 +0000	[diff] [blame]	313	<td class="na" align="center">N/A <a href="#n2670">(2)</a></td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	314	</tr>
				315	<tr>
				316	<td>Allowing move constructors to throw [noexcept]</td>
David Blaikie	5036161	2011-11-02 15:13:40 +0000	[diff] [blame]	317	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3050.html">N3050</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	318	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	319	</tr>
				320	<tr>
				321	<td>Defining move special member functions</td>
David Blaikie	5036161	2011-11-02 15:13:40 +0000	[diff] [blame]	322	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3053.html">N3053</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	323	<td class="full" align="center">Clang 3.0</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	324	</tr>
Cedric Venet	08438133	2009-02-14 20:20:19 +0000	[diff] [blame]	325
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	326	<tr class="separator">
Benjamin Kramer	1c9e158	2011-11-05 10:11:36 +0000	[diff] [blame]	327	<th align="center" colspan="3">Concurrency</th>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	328	</tr>
				329	<tr>
				330	<td>Sequence points</td>
				331	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2239.html">N2239</a></td>
Richard Smith	9924772	2013-06-17 23:54:23 +0000	[diff] [blame]	332	<td class="full" align="center">Clang 3.3</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	333	</tr>
				334	<tr>
				335	<td>Atomic operations</td>
				336	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html">N2427</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	337	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	338	</tr>
				339	<tr>
				340	<td>Strong Compare and Exchange</td>
				341	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2748.html">N2748</a></td>
Richard Smith	d997cce	2014-03-14 20:26:09 +0000	[diff] [blame]	342	<td class="full" align="center">Clang 3.1 <a href="#n2748">(3)</a></td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	343	</tr>
				344	<tr>
				345	<td>Bidirectional Fences</td>
				346	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2752.htm">N2752</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	347	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	348	</tr>
Douglas Gregor	6b6e082	2010-12-21 05:43:31 +0000	[diff] [blame]	349
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	350	<tr>
				351	<td>Memory model</td>
				352	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2429.htm">N2429</a></td>
Richard Smith	bc4fc77	2013-01-29 04:55:18 +0000	[diff] [blame]	353	<td class="full" align="center">Clang 3.2</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	354	</tr>
				355	<tr>
				356	<td>Data-dependency ordering: atomics and memory model</td>
				357	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2664.htm">N2664</a></td>
Richard Smith	d997cce	2014-03-14 20:26:09 +0000	[diff] [blame]	358	<td class="full" align="center">Clang 3.2 <a href="#n2664">(4)</a></td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	359	</tr>
				360	<tr>
				361	<td>Propagating exceptions</td>
				362	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html">N2179</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	363	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	364	</tr>
				365	<tr>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	366	<td>Allow atomics use in signal handlers</td>
				367	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2547.htm">N2547</a></td>
Richard Smith	607d631	2012-05-23 01:38:11 +0000	[diff] [blame]	368	<td class="full" align="center">Clang 3.1</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	369	</tr>
				370	<tr>
				371	<td>Thread-local storage</td>
				372	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2659.htm">N2659</a></td>
Richard Smith	952923b	2016-02-09 22:48:14 +0000	[diff] [blame]	373	<td class="full" align="center">Clang 3.3 <a href="#n2659">(5)</a></td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	374	</tr>
				375	<tr>
				376	<td>Dynamic initialization and destruction with concurrency</td>
				377	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2660.htm">N2660</a></td>
Richard Smith	537a834	2013-02-22 09:31:00 +0000	[diff] [blame]	378	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	379	</tr>
Cedric Venet	08438133	2009-02-14 20:20:19 +0000	[diff] [blame]	380
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	381	<tr class="separator">
Richard Smith	18743de	2012-02-24 18:42:08 +0000	[diff] [blame]	382	<th align="center" colspan="3">C99 Features in C++11</th>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	383	</tr>
				384	<tr>
				385	<td><code>__func__</code> predefined identifier</td>
				386	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2340.htm">N2340</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	387	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	388	</tr>
				389	<tr>
				390	<td>C99 preprocessor</td>
				391	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1653.htm">N1653</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	392	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	393	</tr>
				394	<tr>
				395	<td><code>long long</code></td>
				396	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1811.pdf">N1811</a></td>
Michael J. Spencer	e73bd64	2011-11-02 06:29:37 +0000	[diff] [blame]	397	<td class="full" align="center">Clang 2.9</td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	398	</tr>
				399	<tr>
				400	<td>Extended integral types</td>
				401	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1988.pdf">N1988</a></td>
Richard Smith	952923b	2016-02-09 22:48:14 +0000	[diff] [blame]	402	<td class="na" align="center">N/A <a href="#n1988">(6)</a></td>
Douglas Gregor	1f64b59	2011-10-14 23:21:49 +0000	[diff] [blame]	403	</tr>
Cedric Venet	08438133	2009-02-14 20:20:19 +0000	[diff] [blame]	404	</table>
Richard Smith	9deb9d9	2013-03-12 19:56:09 +0000	[diff] [blame]	405
				406	<p>
				407	<span id="n2761">(1): The <code>[[carries_dependency]]</code> attribute
Richard Smith	38546ed	2013-03-18 21:57:52 +0000	[diff] [blame]	408	has no effect.</span><br>
Richard Smith	d997cce	2014-03-14 20:26:09 +0000	[diff] [blame]	409	<span id="n2670">(2): No compiler changes are required for an implementation
				410	such as Clang that does not provide garbage collection.</span><br>
				411	<span id="n2748">(3): All compare-exchange operations are emitted as
Richard Smith	38546ed	2013-03-18 21:57:52 +0000	[diff] [blame]	412	strong compare-exchanges.</span><br>
Richard Smith	d997cce	2014-03-14 20:26:09 +0000	[diff] [blame]	413	<span id="n2664">(4): <code>memory_order_consume</code> is lowered to
Richard Smith	38546ed	2013-03-18 21:57:52 +0000	[diff] [blame]	414	<code>memory_order_acquire</code>.</span><br>
Richard Smith	952923b	2016-02-09 22:48:14 +0000	[diff] [blame]	415	<span id="n2659">(5): <code>thread_local</code> support
				416	requires a C++ runtime library providing <code>__cxa_thread_atexit</code>, such
				417	as <a href="http://libcxxabi.llvm.org">libc++abi</a> 3.6 or later,
				418	or libsupc++ 4.8 or later.</span><br>
				419	<span id="n1988">(6): No compiler changes are required for an implementation
Richard Smith	d997cce	2014-03-14 20:26:09 +0000	[diff] [blame]	420	such as Clang that does not provide any extended integer types.
				421	<code>__int128</code> is not treated as an extended integer type,
				422	because changing <code>intmax_t</code> would be an ABI-incompatible
				423	change.</span>
Richard Smith	9deb9d9	2013-03-12 19:56:09 +0000	[diff] [blame]	424	</p>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	425	</details>
Richard Smith	9deb9d9	2013-03-12 19:56:09 +0000	[diff] [blame]	426
Richard Smith	20f3767	2014-08-31 04:17:48 +0000	[diff] [blame]	427	<h2 id="cxx14">C++14 implementation status</h2>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	428
Richard Smith	0188110	2016-09-28 19:22:36 +0000	[diff] [blame]	429	<p>Clang 3.4 and later implement all of the <a
				430	href="http://www.iso.org/iso/catalogue_detail.htm?csnumber=64029">ISO
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	431	C++ 2014 standard</a>.
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	432
Richard Smith	20f3767	2014-08-31 04:17:48 +0000	[diff] [blame]	433	<p>You can use Clang in C++14 mode with the <code>-std=c++14</code> option
Richard Smith	1b88632	2014-08-31 04:18:54 +0000	[diff] [blame]	434	(use <code>-std=c++1y</code> in Clang 3.4 and earlier).</p>
Richard Smith	4cf9a1e	2013-04-20 13:22:50 +0000	[diff] [blame]	435
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	436	<details>
				437	<summary>List of features and minimum Clang version with support</summary>
				438
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	439	<table width="689" border="1" cellspacing="0">
				440	<tr>
				441	<th>Language Feature</th>
Richard Smith	20f3767	2014-08-31 04:17:48 +0000	[diff] [blame]	442	<th>C++14 Proposal</th>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	443	<th>Available in Clang?</th>
				444	</tr>
				445	<tr>
				446	<td>Tweak to certain C++ contextual conversions</td>
				447	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3323.pdf">N3323</a></td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	448	<td class="full" align="center">Clang 3.4</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	449	</tr>
				450	<tr>
Richard Smith	0fa4fce	2013-04-20 12:44:32 +0000	[diff] [blame]	451	<td>Binary literals</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	452	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf">N3472</a></td>
Benjamin Kramer	eb0ad45	2015-02-09 11:48:43 +0000	[diff] [blame]	453	<td class="full" align="center">Clang 2.9</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	454	</tr>
				455	<tr>
Richard Smith	74aeef5	2013-04-26 16:15:35 +0000	[diff] [blame]	456	<td>decltype(auto)</td>
Richard Smith	f2f6e114	2013-05-09 18:53:17 +0000	[diff] [blame]	457	<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 Smith	9924772	2013-06-17 23:54:23 +0000	[diff] [blame]	458	<td class="full" align="center">Clang 3.3</td>
Richard Smith	74aeef5	2013-04-26 16:15:35 +0000	[diff] [blame]	459	</tr>
				460	<tr>
Richard Smith	5db8b28	2013-04-20 12:47:36 +0000	[diff] [blame]	461	<td>Return type deduction for normal functions</td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	462	<td class="full" align="center">Clang 3.4</td>
Richard Smith	5db8b28	2013-04-20 12:47:36 +0000	[diff] [blame]	463	</tr>
Richard Smith	0fa4fce	2013-04-20 12:44:32 +0000	[diff] [blame]	464	<tr>
Richard Smith	5db8b28	2013-04-20 12:47:36 +0000	[diff] [blame]	465	<td>Initialized lambda captures</td>
Richard Smith	f2f6e114	2013-05-09 18:53:17 +0000	[diff] [blame]	466	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3648.html">N3648</a></td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	467	<td class="full" align="center">Clang 3.4</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	468	</tr>
				469	<tr>
Richard Smith	7898d7b	2013-04-20 12:58:57 +0000	[diff] [blame]	470	<td>Generic lambdas</td>
Richard Smith	f2f6e114	2013-05-09 18:53:17 +0000	[diff] [blame]	471	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3649.html">N3649</a></td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	472	<td class="full" align="center">Clang 3.4</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	473	</tr>
				474	<tr>
Richard Smith	7898d7b	2013-04-20 12:58:57 +0000	[diff] [blame]	475	<td>Variable templates</td>
Richard Smith	f2f6e114	2013-05-09 18:53:17 +0000	[diff] [blame]	476	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3651.pdf">N3651</a></td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	477	<td class="full" align="center">Clang 3.4</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	478	</tr>
				479	<tr>
Richard Smith	7feda2f	2013-04-20 12:49:36 +0000	[diff] [blame]	480	<td>Relaxing requirements on constexpr functions</td>
Richard Smith	f2f6e114	2013-05-09 18:53:17 +0000	[diff] [blame]	481	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3652.html">N3652</a></td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	482	<td class="full" align="center">Clang 3.4</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	483	</tr>
				484	<tr>
Richard Smith	5db8b28	2013-04-20 12:47:36 +0000	[diff] [blame]	485	<td>Member initializers and aggregates</td>
Richard Smith	f2f6e114	2013-05-09 18:53:17 +0000	[diff] [blame]	486	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html">N3653</a></td>
Richard Smith	9924772	2013-06-17 23:54:23 +0000	[diff] [blame]	487	<td class="full" align="center">Clang 3.3</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	488	</tr>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	489	<tr>
Richard Smith	d3a7386	2013-04-20 12:57:49 +0000	[diff] [blame]	490	<td>Clarifying memory allocation</td>
Richard Smith	f2f6e114	2013-05-09 18:53:17 +0000	[diff] [blame]	491	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3664.html">N3664</a></td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	492	<td class="full" align="center">Clang 3.4</td>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	493	</tr>
Richard Smith	3ca005b	2013-09-27 19:11:33 +0000	[diff] [blame]	494	<tr>
				495	<td><tt>[[deprecated]]</tt> attribute</td>
				496	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3760.html">N3760</a></td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	497	<td class="full" align="center">Clang 3.4</td>
Richard Smith	3ca005b	2013-09-27 19:11:33 +0000	[diff] [blame]	498	</tr>
				499	<tr>
				500	<td>Single quotation mark as digit separator</td>
Richard Smith	2d1d3ca	2013-11-05 08:27:00 +0000	[diff] [blame]	501	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3781.pdf">N3781</a></td>
Richard Smith	7fe8962	2014-02-03 06:58:08 +0000	[diff] [blame]	502	<td class="full" align="center">Clang 3.4</td>
Richard Smith	3ca005b	2013-09-27 19:11:33 +0000	[diff] [blame]	503	</tr>
				504	<tr>
Benjamin Kramer	8ba47d0	2013-09-27 19:35:09 +0000	[diff] [blame]	505	<td>C++ Sized Deallocation</td>
Richard Smith	2d1d3ca	2013-11-05 08:27:00 +0000	[diff] [blame]	506	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3778.html">N3778</a></td>
Richard Smith	952923b	2016-02-09 22:48:14 +0000	[diff] [blame]	507	<td class="full" align="center">Clang 3.4 <a href="#n3778">(7)</a></td>
Richard Smith	3ca005b	2013-09-27 19:11:33 +0000	[diff] [blame]	508	</tr>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	509	</table>
Reid Kleckner	7ffc3fb	2015-03-20 00:31:07 +0000	[diff] [blame]	510
Larisse Voufo	ee3c1b2	2015-02-19 04:34:13 +0000	[diff] [blame]	511	<p>
Richard Smith	952923b	2016-02-09 22:48:14 +0000	[diff] [blame]	512	<span id="n3778">(7): In Clang 3.7 and later, sized deallocation is only enabled
Reid Kleckner	7ffc3fb	2015-03-20 00:31:07 +0000	[diff] [blame]	513	if the user passes the <code>-fsized-deallocation</code> flag. The user must
				514	supply definitions of the sized deallocation functions, either by providing them
				515	explicitly or by using a C++ standard library that does. <code>libstdc++</code>
				516	added these functions in version 5.0, and <code>libc++</code> added them in
				517	version 3.7.
Larisse Voufo	ee3c1b2	2015-02-19 04:34:13 +0000	[diff] [blame]	518	</span>
				519	</p>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	520	</details>
Richard Smith	9172520	2013-04-19 17:27:48 +0000	[diff] [blame]	521
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	522	<h2 id="cxx17">C++17 implementation status</h2>
Richard Smith	76b9f23	2013-11-07 06:41:26 +0000	[diff] [blame]	523
Richard Smith	b9e5af2	2017-08-11 03:16:11 +0000	[diff] [blame]	524	<p>Clang 5 and later implement all the features
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	525	of the C++ 2017 Draft International Standard.
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	526
Richard Smith	c61fec2	2017-08-30 23:10:31 +0000	[diff] [blame]	527	<p>You can use Clang in C++17 mode with the <code>-std=c++17</code> option
				528	(use <code>-std=c++1z</code> in Clang 4 and earlier).</p>
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	529
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	530	<details open>
				531	<summary>List of features and minimum Clang version with support</summary>
				532
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	533	<table width="689" border="1" cellspacing="0">
				534	<tr>
				535	<th>Language Feature</th>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	536	<th>C++17 Proposal</th>
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	537	<th>Available in Clang?</th>
				538	</tr>
Richard Smith	5a20d7e	2016-11-11 22:48:43 +0000	[diff] [blame]	539	<!-- Issaquah 2014 papers -->
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	540	<tr>
				541	<td><tt>static_assert</tt> with no message</td>
				542	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3928.pdf">N3928</a></td>
Richard Smith	ee0a49c	2014-09-11 17:30:32 +0000	[diff] [blame]	543	<td class="full" align="center">Clang 3.5</td>
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	544	</tr>
Richard Smith	0f0af19	2014-11-08 05:07:16 +0000	[diff] [blame]	545	<!-- Rapperswil papers -->
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	546	<tr>
				547	<td>Disabling trigraph expansion by default</td>
Richard Smith	410cc89	2014-11-26 03:26:53 +0000	[diff] [blame]	548	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4086.html">N4086</a></td>
Richard Smith	ee0a49c	2014-09-11 17:30:32 +0000	[diff] [blame]	549	<td class="full" align="center">Clang 3.5</td>
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	550	</tr>
Richard Smith	83d3f15	2014-11-27 01:54:27 +0000	[diff] [blame]	551	<!--
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	552	<tr>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	553	<td rowspan="2">Terse range-based for loops (removed from C++17)</td>
Richard Smith	83d3f15	2014-11-27 01:54:27 +0000	[diff] [blame]	554	<td rowspan="2"><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3994.htm">N3994</a></td>
				555	<td class="none" align="center">Clang 3.5: Yes</td>
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	556	</tr>
				557	<tr>
Richard Smith	83d3f15	2014-11-27 01:54:27 +0000	[diff] [blame]	558	<td class="svn" align="center">SVN: No</td>
				559	</tr>
				560	-->
				561	<tr>
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	562	<td><tt>typename</tt> in a template template parameter</td>
				563	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4051.html">N4051</a></td>
Richard Smith	ee0a49c	2014-09-11 17:30:32 +0000	[diff] [blame]	564	<td class="full" align="center">Clang 3.5</td>
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	565	</tr>
Richard Smith	410cc89	2014-11-26 03:26:53 +0000	[diff] [blame]	566	<tr>
				567	<td>New <tt>auto</tt> rules for direct-list-initialization
				568	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3922.html">N3922</a></td>
Richard Smith	25dde97	2016-03-20 10:37:12 +0000	[diff] [blame]	569	<td class="full" align="center">Clang 3.8 <a href="#n3922">(8)</a></td>
Richard Smith	410cc89	2014-11-26 03:26:53 +0000	[diff] [blame]	570	</tr>
Richard Smith	0f0af19	2014-11-08 05:07:16 +0000	[diff] [blame]	571	<!-- Urbana papers -->
				572	<tr>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	573	<td rowspan="2">Fold expressions</td>
Benjamin Kramer	eb0ad45	2015-02-09 11:48:43 +0000	[diff] [blame]	574	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4295.html">N4295</a></td>
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	575	<td class="full" align="center">Clang 3.6</td>
Richard Smith	3e3a705	2014-11-08 06:08:42 +0000	[diff] [blame]	576	</tr>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	577	<tr> <!-- from Jacksonville -->
				578	<td><a href="http://wg21.link/p0036r0">P0036R0</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	579	<td class="full" align="center">Clang 3.9</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	580	</tr>
Richard Smith	3e3a705	2014-11-08 06:08:42 +0000	[diff] [blame]	581	<tr>
				582	<td><tt>u8</tt> character literals</td>
Benjamin Kramer	eb0ad45	2015-02-09 11:48:43 +0000	[diff] [blame]	583	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4267.html">N4267</a></td>
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	584	<td class="full" align="center">Clang 3.6</td>
Richard Smith	0f0af19	2014-11-08 05:07:16 +0000	[diff] [blame]	585	</tr>
Richard Smith	13307f5	2014-11-08 05:37:34 +0000	[diff] [blame]	586	<tr>
				587	<td>Nested namespace definition</td>
Benjamin Kramer	eb0ad45	2015-02-09 11:48:43 +0000	[diff] [blame]	588	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4230.html">N4230</a></td>
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	589	<td class="full" align="center">Clang 3.6</td>
Richard Smith	13307f5	2014-11-08 05:37:34 +0000	[diff] [blame]	590	</tr>
Aaron Ballman	730476b	2014-11-08 15:33:35 +0000	[diff] [blame]	591	<tr>
				592	<td>Attributes for namespaces and enumerators</td>
Benjamin Kramer	eb0ad45	2015-02-09 11:48:43 +0000	[diff] [blame]	593	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4266.html">N4266</a></td>
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	594	<td class="full" align="center">Clang 3.6</td>
Aaron Ballman	730476b	2014-11-08 15:33:35 +0000	[diff] [blame]	595	</tr>
Richard Smith	410cc89	2014-11-26 03:26:53 +0000	[diff] [blame]	596	<tr>
				597	<td>Allow constant evaluation for all non-type template arguments</td>
Benjamin Kramer	eb0ad45	2015-02-09 11:48:43 +0000	[diff] [blame]	598	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4268.html">N4268</a></td>
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	599	<td class="full" align="center">Clang 3.6</td>
Richard Smith	410cc89	2014-11-26 03:26:53 +0000	[diff] [blame]	600	</tr>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	601	<!-- Kona papers -->
				602	<tr>
				603	<td>Remove deprecated <tt>register</tt> storage class</td>
				604	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0001r1.html">P0001R1</a></td>
Richard Smith	25dde97	2016-03-20 10:37:12 +0000	[diff] [blame]	605	<td class="full" align="center">Clang 3.8</td>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	606	</tr>
				607	<tr>
				608	<td>Remove deprecated <tt>bool</tt> increment</td>
				609	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0002r1.html">P0002R1</a></td>
Richard Smith	25dde97	2016-03-20 10:37:12 +0000	[diff] [blame]	610	<td class="full" align="center">Clang 3.8</td>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	611	</tr>
				612	<tr>
				613	<td>Make exception specifications part of the type system</td>
				614	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0012r1.html">P0012R1</a></td>
Ed Schouten	f59d8df	2017-03-16 14:21:00 +0000	[diff] [blame]	615	<td class="full" align="center">Clang 4</td>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	616	</tr>
				617	<tr>
Richard Smith	4a0cd89	2015-11-26 02:16:37 +0000	[diff] [blame]	618	<td><tt>__has_include</tt> in preprocessor conditionals</td>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	619	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0061.html">P0061R1</a></td>
				620	<td class="full" align="center">Yes</td>
				621	</tr>
Richard Smith	952923b	2016-02-09 22:48:14 +0000	[diff] [blame]	622	<tr>
				623	<td>New specification for inheriting constructors (<a href="cxx_dr_status.html#1941">DR1941</a> et al)</td>
				624	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0136r1.html">P0136R1</a></td>
Richard Smith	b17d6fa	2016-12-01 03:04:07 +0000	[diff] [blame]	625	<td class="full" align="center">Clang 3.9 <a href="#p0136">(9)</a></td>
Richard Smith	952923b	2016-02-09 22:48:14 +0000	[diff] [blame]	626	</tr>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	627	<!-- Jacksonville papers -->
				628	<tr>
				629	<td><tt>[[fallthrough]]</tt> attribute</td>
				630	<td><a href="http://wg21.link/p0188r1">P0188R1</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	631	<td class="full" align="center">Clang 3.9</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	632	</tr>
				633	<tr>
				634	<td><tt>[[nodiscard]]</tt> attribute</td>
				635	<td><a href="http://wg21.link/p0189r1">P0189R1</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	636	<td class="full" align="center">Clang 3.9</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	637	</tr>
				638	<tr>
				639	<td><tt>[[maybe_unused]]</tt> attribute</td>
				640	<td><a href="http://wg21.link/p0212r1">P0212R1</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	641	<td class="full" align="center">Clang 3.9</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	642	</tr>
				643	<tr>
				644	<td>Aggregate initialization of classes with base classes</td>
				645	<td><a href="http://wg21.link/p0017r1">P0017R1</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	646	<td class="full" align="center">Clang 3.9</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	647	</tr>
				648	<tr>
				649	<td><tt>constexpr</tt> lambda expressions</td>
				650	<td><a href="http://wg21.link/p0170r1">P0170R1</a></td>
Richard Smith	4b82f9c	2017-09-09 01:11:04 +0000	[diff] [blame]	651	<td class="full" align="center">Clang 5</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	652	</tr>
				653	<tr>
				654	<td>Differing <tt>begin</tt> and <tt>end</tt> types in range-based <tt>for</tt></td>
				655	<td><a href="http://wg21.link/p0184r0">P0184R0</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	656	<td class="full" align="center">Clang 3.9</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	657	</tr>
				658	<tr>
				659	<td>Lambda capture of <tt>*this</tt></td>
				660	<td><a href="http://wg21.link/p0018r3">P0018R3</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	661	<td class="full" align="center">Clang 3.9</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	662	</tr>
				663	<tr>
				664	<td>Direct-list-initialization of <tt>enum</tt>s</td>
				665	<td><a href="http://wg21.link/p0138r2">P0138R2</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	666	<td class="full" align="center">Clang 3.9</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	667	</tr>
				668	<tr>
				669	<td>Hexadecimal floating-point literals</td>
				670	<td><a href="http://wg21.link/p0245r1">P0245R1</a></td>
				671	<td class="full" align="center">Yes</td>
				672	</tr>
Richard Smith	b130fe7	2016-06-23 19:16:49 +0000	[diff] [blame]	673	<!-- Oulu papers -->
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	674	<tr>
				675	<td>Using attribute namespaces without repetition</td>
				676	<td><a href="http://wg21.link/p0028r4">P0028R4</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	677	<td class="full" align="center">Clang 3.9</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	678	</tr>
				679	<tr>
				680	<td>Dynamic memory allocation for over-aligned data</td>
				681	<td><a href="http://wg21.link/p0035r4">P0035R4</a></td>
Ed Schouten	f59d8df	2017-03-16 14:21:00 +0000	[diff] [blame]	682	<td class="full" align="center">Clang 4</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	683	</tr>
				684	<tr>
Richard Smith	19a311a	2017-02-09 22:47:51 +0000	[diff] [blame]	685	<td rowspan="2">Template argument deduction for class templates</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	686	<td><a href="http://wg21.link/p0091r3">P0091R3</a></td>
Richard Smith	4b82f9c	2017-09-09 01:11:04 +0000	[diff] [blame]	687	<td rowspan="2" class="full" align="center">Clang 5</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	688	</tr>
Richard Smith	19a311a	2017-02-09 22:47:51 +0000	[diff] [blame]	689	<tr> <!-- from Issaquah -->
				690	<td><a href="http://wg21.link/p0512r0">P0512R0</a></td>
Richard Smith	19a311a	2017-02-09 22:47:51 +0000	[diff] [blame]	691	</tr>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	692	<tr>
Richard Smith	3a2dc6f0	2016-06-24 12:21:30 +0000	[diff] [blame]	693	<td>Non-type template parameters with <tt>auto</tt> type</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	694	<td><a href="http://wg21.link/p0127r2">P0127R2</a></td>
Ed Schouten	f59d8df	2017-03-16 14:21:00 +0000	[diff] [blame]	695	<td class="full" align="center">Clang 4</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	696	</tr>
				697	<tr>
				698	<td>Guaranteed copy elision</td>
				699	<td><a href="http://wg21.link/p0135r1">P0135R1</a></td>
Ed Schouten	f59d8df	2017-03-16 14:21:00 +0000	[diff] [blame]	700	<td class="full" align="center">Clang 4</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	701	</tr>
				702	<tr>
Richard Smith	63497c6	2016-07-14 00:14:59 +0000	[diff] [blame]	703	<td rowspan=2>Stricter expression evaluation order</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	704	<td><a href="http://wg21.link/p0145r3">P0145R3</a></td>
Ed Schouten	f59d8df	2017-03-16 14:21:00 +0000	[diff] [blame]	705	<td class="full" align="center" rowspan=2>Clang 4 <a href="#p0145">(10)</a></td>
Richard Smith	63497c6	2016-07-14 00:14:59 +0000	[diff] [blame]	706	</tr>
				707	<tr>
				708	<td><a href="http://wg21.link/p0400r0">P0400R0</a></td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	709	</tr>
				710	<tr>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	711	<td>Requirement to ignore unknown attributes</td>
				712	<td><a href="http://wg21.link/p0283r2">P0283R2</a></td>
				713	<td class="full" align="center">Yes</td>
				714	</tr>
Richard Smith	b130fe7	2016-06-23 19:16:49 +0000	[diff] [blame]	715	<tr>
				716	<td><tt>constexpr</tt> <em>if-statement</em>s</td>
				717	<td><a href="http://wg21.link/p0292r2">P0292R2</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	718	<td class="full" align="center">Clang 3.9</td>
Richard Smith	b130fe7	2016-06-23 19:16:49 +0000	[diff] [blame]	719	</tr>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	720	<tr>
				721	<td>Inline variables</td>
				722	<td><a href="http://wg21.link/p0386r2">P0386R2</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	723	<td class="full" align="center">Clang 3.9</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	724	</tr>
				725	<tr>
				726	<td>Structured bindings</td>
				727	<td><a href="http://wg21.link/p0217r3">P0217R3</a></td>
Ed Schouten	f59d8df	2017-03-16 14:21:00 +0000	[diff] [blame]	728	<td class="full" align="center">Clang 4</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	729	</tr>
				730	<tr>
Richard Smith	90ea9eb	2016-06-24 14:23:32 +0000	[diff] [blame]	731	<td>Separate variable and condition for <tt>if</tt> and <tt>switch</tt></td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	732	<td><a href="http://wg21.link/p0305r1">P0305R1</a></td>
Richard Smith	b1a268a	2016-08-15 02:47:23 +0000	[diff] [blame]	733	<td class="full" align="center">Clang 3.9</td>
Richard Smith	74f56e7	2016-06-24 11:20:31 +0000	[diff] [blame]	734	</tr>
Richard Smith	5a20d7e	2016-11-11 22:48:43 +0000	[diff] [blame]	735	<!-- Issaquah 2016 papers -->
Richard Smith	5a20d7e	2016-11-11 22:48:43 +0000	[diff] [blame]	736	<tr>
				737	<td>Matching template template parameters to compatible arguments</td>
				738	<td><a href="http://wg21.link/p0522r0">P0522R0</a></td>
Richard Smith	26b86ea	2016-12-31 21:41:23 +0000	[diff] [blame]	739	<td class="partial" align="center">Partial <a href="#p0522">(12)</a></td>
Richard Smith	5a20d7e	2016-11-11 22:48:43 +0000	[diff] [blame]	740	</tr>
				741	<tr>
				742	<td>Removing deprecated dynamic exception specifications</td>
				743	<td><a href="http://wg21.link/p0003r5">P0003R5</a></td>
Ed Schouten	f59d8df	2017-03-16 14:21:00 +0000	[diff] [blame]	744	<td class="full" align="center">Clang 4</td>
Richard Smith	5a20d7e	2016-11-11 22:48:43 +0000	[diff] [blame]	745	</tr>
				746	<tr>
				747	<td>Pack expansions in <em>using-declarations</em></td>
				748	<td><a href="http://wg21.link/p0195r2">P0195R2</a></td>
Ed Schouten	f59d8df	2017-03-16 14:21:00 +0000	[diff] [blame]	749	<td class="full" align="center">Clang 4</td>
Richard Smith	5a20d7e	2016-11-11 22:48:43 +0000	[diff] [blame]	750	</tr>
Richard Smith	cf31c6b	2014-06-20 20:33:10 +0000	[diff] [blame]	751	</table>
Richard Smith	76b9f23	2013-11-07 06:41:26 +0000	[diff] [blame]	752
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	753	<p>
Richard Smith	952923b	2016-02-09 22:48:14 +0000	[diff] [blame]	754	<span id="n3922">(8): This is a backwards-incompatible change that is applied to
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	755	all language versions that allow type deduction from <tt>auto</tt>
				756	(per the request of the C++ committee).
				757	In Clang 3.7, a warning is emitted for all cases that would change meaning.
Richard Smith	4a93c59	2016-06-28 20:37:43 +0000	[diff] [blame]	758	</span><br>
Richard Smith	b17d6fa	2016-12-01 03:04:07 +0000	[diff] [blame]	759	<span id="p0136">(9): This is the resolution to a Defect Report, so is applied
Richard Smith	5179eb7	2016-06-28 19:03:57 +0000	[diff] [blame]	760	to all language versions supporting inheriting constructors.
Richard Smith	762672a	2016-09-28 19:09:10 +0000	[diff] [blame]	761	</span><br>
Richard Smith	b17d6fa	2016-12-01 03:04:07 +0000	[diff] [blame]	762	<span id="p0145">(10): Under the MS ABI, function parameters are destroyed from
Richard Smith	a560ccf	2016-09-29 21:30:12 +0000	[diff] [blame]	763	left to right in the callee. As a result, function parameters in calls to
Richard Smith	762672a	2016-09-28 19:09:10 +0000	[diff] [blame]	764	<tt>operator<<</tt>, <tt>operator>></tt>, <tt>operator->*</tt>,
				765	<tt>operator&&</tt>, <tt>operator\|\|</tt>, and <tt>operator,</tt>
Richard Smith	a560ccf	2016-09-29 21:30:12 +0000	[diff] [blame]	766	functions using expression syntax are no longer guaranteed to be destroyed in
				767	reverse construction order in that ABI.
Richard Smith	e0c7500	2016-11-11 23:46:25 +0000	[diff] [blame]	768	</span><br>
Richard Smith	26b86ea	2016-12-31 21:41:23 +0000	[diff] [blame]	769	<span id="p0522">(12): Despite being the the resolution to a Defect Report, this
				770	feature is disabled by default in all language versions, and can be enabled
Richard Smith	e0c11f2	2017-11-30 23:07:29 +0000	[diff] [blame]	771	explicitly with the flag <tt>-frelaxed-template-template-args</tt> in Clang 4
				772	onwards.
Richard Smith	d7279bb	2017-01-13 00:57:54 +0000	[diff] [blame]	773	The change to the standard lacks a corresponding change for template partial
				774	ordering, resulting in ambiguity errors for reasonable and previously-valid
				775	code. This issue is expected to be rectified soon.
Richard Smith	5179eb7	2016-06-28 19:03:57 +0000	[diff] [blame]	776	</span>
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	777	</p>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	778	</details>
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	779
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	780	<h2 id="cxx20">C++2a implementation status</h2>
				781
Faisal Vali	8194a3e	2017-08-19 03:43:07 +0000	[diff] [blame]	782	<p>Clang has <b>experimental</b> support for some proposed features of
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	783	the C++ standard following C++17, provisionally named C++2a.
				784	Note that support for these features may change or be removed without notice,
				785	as the draft C++2a standard evolves.
				786
Faisal Vali	8194a3e	2017-08-19 03:43:07 +0000	[diff] [blame]	787	<p>You can use Clang in C++2a mode with the <code>-std=c++2a</code> option.</p>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	788
				789	<details open>
				790	<summary>List of features and minimum Clang version with support</summary>
				791
				792	<table width="689" border="1" cellspacing="0">
				793	<tr>
				794	<th>Language Feature</th>
				795	<th>C++2a Proposal</th>
				796	<th>Available in Clang?</th>
				797	</tr>
				798	<!-- Toronto 2017 papers -->
				799	<tr>
				800	<td>Default member initializers for bit-fields</td>
Richard Smith	21a1019	2017-07-15 15:51:59 +0000	[diff] [blame]	801	<td><a href="http://wg21.link/p0683r1">P0683R1</a></td>
Richard Smith	6b8e3c0	2017-08-28 00:28:14 +0000	[diff] [blame]	802	<td class="svn" align="center">SVN</td>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	803	</tr>
				804	<tr>
				805	<td><tt>const&</tt>-qualified pointers to members</td>
				806	<td><a href="http://wg21.link/p0704r1">P0704R1</a></td>
Richard Smith	2592327	2017-08-25 01:47:55 +0000	[diff] [blame]	807	<td class="svn" align="center">SVN</td>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	808	</tr>
				809	<tr>
				810	<td>Allow <i>lambda-capture</i> <tt>[=, this]</tt></td>
				811	<td><a href="http://wg21.link/p0409r2">P0409R2</a></td>
Faisal Vali	8194a3e	2017-08-19 03:43:07 +0000	[diff] [blame]	812	<td class="svn" align="center">SVN</td>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	813	</tr>
				814	<tr>
				815	<td><tt>__VA_OPT__</tt> for preprocessor comma elision</td>
				816	<td><a href="http://wg21.link/p0306r4">P0306R4</a></td>
Faisal Vali	39ff401	2017-10-22 22:29:52 +0000	[diff] [blame]	817	<td class="svn" align="center">SVN</td>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	818	</tr>
				819	<tr>
				820	<td>Designated initializers</td>
				821	<td><a href="http://wg21.link/p0329r4">P0329R4</a></td>
				822	<td class="partial" align="center">Partial (extension)</td>
				823	</tr>
				824	<tr>
				825	<td><i>template-parameter-list</i> for generic lambdas</td>
				826	<td><a href="http://wg21.link/p0428r2">P0428R2</a></td>
				827	<td class="none" align="center">No</td>
				828	</tr>
				829	<tr>
				830	<td>Initializer list constructors in class template argument deduction</td>
				831	<td><a href="http://wg21.link/p0702r1">P0702R1</a></td>
Richard Smith	1363e8f	2017-09-07 07:22:36 +0000	[diff] [blame]	832	<td class="svn" align="center">SVN <a href="#p0702">(13)</a></td>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	833	</tr>
Richard Smith	137f657	2017-11-11 17:54:46 +0000	[diff] [blame]	834	<tr id="p0734">
				835	<td rowspan="2">Concepts</td>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	836	<td><a href="http://wg21.link/p0734r0">P0734R0</a></td>
Richard Smith	137f657	2017-11-11 17:54:46 +0000	[diff] [blame]	837	<td rowspan="2" class="none" align="center">No</td>
				838	</tr>
				839	<tr> <!-- from Albuquerque -->
				840	<td><a href="http://wg21.link/p0857r0">P0857R0</a></td>
				841	</tr>
				842	<!-- Albuquerque papers -->
				843	<tr>
				844	<td>Range-based for statements with initializer</td>
				845	<td><a href="http://wg21.link/p0614r1">P0614R1</a></td>
				846	<td class="none" align="center">No</td>
				847	</tr>
				848	<tr>
				849	<td>Simplifying implicit lambda capture</td>
				850	<td><a href="http://wg21.link/p0588r1">P0588R1</a></td>
Richard Smith	be49c04	2017-11-11 18:00:16 +0000	[diff] [blame]	851	<td class="none" align="center">No <a href="#p0588">(14)</a></td>
Richard Smith	137f657	2017-11-11 17:54:46 +0000	[diff] [blame]	852	</tr>
				853	<tr>
				854	<td>ADL and function templates that are not visible</td>
				855	<td><a href="http://wg21.link/p0846r0">P0846R0</a></td>
				856	<td class="none" align="center">No</td>
				857	</tr>
				858	<tr>
				859	<td><tt>const</tt> mismatch with defaulted copy constructor</td>
				860	<td><a href="http://wg21.link/p0641r2">P0641R2</a></td>
				861	<td class="none" align="center">No</td>
				862	</tr>
				863	<tr>
Richard Smith	be49c04	2017-11-11 18:00:16 +0000	[diff] [blame]	864	<td>Less eager instantiation of <tt>constexpr</tt> functions</td>
				865	<td><a href="http://wg21.link/p0859r0">P0859R0</a></td>
				866	<td class="none" align="center">No <a href="#p0859">(15)</a></td>
				867	</tr>
				868	<tr>
Richard Smith	137f657	2017-11-11 17:54:46 +0000	[diff] [blame]	869	<td>Consistent comparison (<tt>operator<=></tt>)</td>
				870	<td><a href="http://wg21.link/p0515r3">P0515R3</a></td>
				871	<td class="none" align="center">No</td>
				872	</tr>
				873	<tr>
				874	<td>Access checking on specializations</td>
				875	<td><a href="http://wg21.link/p0692r1">P0692R1</a></td>
				876	<td class="partial" align="center">Partial</td>
				877	</tr>
				878	<tr>
				879	<td>Default constructible and assignable stateless lambdas</td>
				880	<td><a href="http://wg21.link/p0624r2">P0624R2</a></td>
				881	<td class="none" align="center">No</td>
				882	</tr>
				883	<tr>
				884	<td>Lambdas in unevaluated contexts</td>
				885	<td><a href="http://wg21.link/p0315r4">P0315R4</a></td>
Richard Smith	da62f42	2017-07-15 15:42:36 +0000	[diff] [blame]	886	<td class="none" align="center">No</td>
				887	</tr>
				888	</table>
				889	</details>
				890
Richard Smith	1363e8f	2017-09-07 07:22:36 +0000	[diff] [blame]	891	<p>
				892	<span id="p0702">(13): This is the resolution to a Defect Report, so is applied
				893	to all language versions supporting class template argument deduction.
Richard Smith	be49c04	2017-11-11 18:00:16 +0000	[diff] [blame]	894	</span><br>
				895	<span id="p0588">(14): This is the resolution to a Defect Report, so will be applied
				896	to all language versions supporting lamba expressions.
				897	</span><br>
				898	<span id="p0859">(15): This is the resolution to a Defect Report, so will be applied
				899	to all language versions supporting <tt>constexpr</tt>.
Richard Smith	1363e8f	2017-09-07 07:22:36 +0000	[diff] [blame]	900	</span>
				901	</p>
				902
Richard Smith	91e474f	2013-11-27 22:58:16 +0000	[diff] [blame]	903	<h2 id="ts">Technical specifications and standing documents</h2>
				904
				905	<p>ISO C++ also publishes a number of documents describing additional language
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	906	and library features that are not part of standard C++.</p>
				907
				908	<details open>
				909	<summary>List of features and minimum Clang version with support</summary>
Richard Smith	91e474f	2013-11-27 22:58:16 +0000	[diff] [blame]	910
				911	<table width="689" border="1" cellspacing="0">
				912	<tr>
				913	<th>Document</th>
				914	<th>Latest draft</th>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	915	<th>Compiler flag</th>
Richard Smith	91e474f	2013-11-27 22:58:16 +0000	[diff] [blame]	916	<th>Available in Clang?</th>
				917	</tr>
				918	<tr>
Richard Smith	9d07ae7	2017-08-11 03:39:40 +0000	[diff] [blame]	919	<td rowspan="4">SD-6: SG10 feature test recommendations</td>
				920	<td rowspan="4"><a href="http://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations">SD-6</a></td>
				921	<td rowspan="4">N/A</td>
Richard Smith	38af856	2014-11-12 21:16:38 +0000	[diff] [blame]	922	<td class="full" align="center">
				923	Clang 3.4 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3745">N3745</a>)</br>
				924	</td>
				925	</tr>
				926	<tr>
Richard Smith	42b1057	2015-11-11 01:36:17 +0000	[diff] [blame]	927	<td class="full" align="center">
Benjamin Kramer	eb0ad45	2015-02-09 11:48:43 +0000	[diff] [blame]	928	Clang 3.6 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4200">N4200</a>)</a>
Richard Smith	38af856	2014-11-12 21:16:38 +0000	[diff] [blame]	929	</td>
Richard Smith	91e474f	2013-11-27 22:58:16 +0000	[diff] [blame]	930	</tr>
Richard Smith	b02043c	2016-09-28 19:44:50 +0000	[diff] [blame]	931	<tr>
Richard Smith	d7279bb	2017-01-13 00:57:54 +0000	[diff] [blame]	932	<td class="full" align="center">
				933	Clang 4 (<a href="http://wg21.link/p0096r3">P0096R3</a>)</a>
Richard Smith	b02043c	2016-09-28 19:44:50 +0000	[diff] [blame]	934	</td>
				935	</tr>
Richard Smith	9d07ae7	2017-08-11 03:39:40 +0000	[diff] [blame]	936	<tr>
Richard Smith	4b82f9c	2017-09-09 01:11:04 +0000	[diff] [blame]	937	<td class="full" align="center">
Richard Smith	9d07ae7	2017-08-11 03:39:40 +0000	[diff] [blame]	938	Clang 5 (<a href="http://wg21.link/p0096r4">P0096R4</a>)</a>
				939	</td>
				940	</tr>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	941	<!-- FIXME: Implement latest recommendations.
Richard Smith	91e474f	2013-11-27 22:58:16 +0000	[diff] [blame]	942	<tr>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	943	<td class="svn" align="center">
Richard Smith	b02043c	2016-09-28 19:44:50 +0000	[diff] [blame]	944	SVN (<a href="http://wg21.link/p0096r3">P0096R3</a>)</a>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	945	</td>
				946	</tr>
				947	-->
				948	<!-- No compiler support is known to be needed for:
				949	* Concurrency TS
				950	* Parallelism TS
				951	* Ranges TS
				952	* Networking TS
				953	* File System TS
				954	-->
				955	<tr>
				956	<td>[TS] Concepts</td>
				957	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0121r0.pdf">P0121R0</a></td>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	958	<td></td>
Richard Smith	137f657	2017-11-11 17:54:46 +0000	[diff] [blame]	959	<td class="na" align="center">Superseded by <a href="#p0734">P0734R0</a></td>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	960	</tr>
				961	<tr>
				962	<td>[DRAFT TS] Coroutines</td>
Gor Nishanov	b5543e5	2017-05-27 22:54:52 +0000	[diff] [blame]	963	<td><a href="https://isocpp.org/files/papers/N4663.pdf">N4663</a></td>
Richard Smith	29c5f16	2017-07-06 00:29:13 +0000	[diff] [blame]	964	<td><tt>-fcoroutines-ts<br>-stdlib=libc++</tt></td>
Richard Smith	4b82f9c	2017-09-09 01:11:04 +0000	[diff] [blame]	965	<td class="full" align="center">Clang 5</td>
Richard Smith	91e474f	2013-11-27 22:58:16 +0000	[diff] [blame]	966	</tr>
Richard Smith	3a0ed87	2014-02-15 00:29:00 +0000	[diff] [blame]	967	<tr>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	968	<td>[TS] Library Fundamentals, Version 1 (invocation type traits)</td>
Richard Smith	ea26041	2015-11-05 22:21:52 +0000	[diff] [blame]	969	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html">N4480</a></td>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	970	<td>N/A</td>
Richard Smith	3a0ed87	2014-02-15 00:29:00 +0000	[diff] [blame]	971	<td class="none" align="center">No</td>
				972	</tr>
				973	<tr>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	974	<td>[DRAFT TS] Library Fundamentals, Version 2 (<tt>source_location</tt>)</td>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	975	<td><a href="http://wg21.link/n4600">N4600</a></td>
				976	<td>N/A</td>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	977	<td class="none" align="center">No</td>
				978	</tr>
				979	<tr>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	980	<td>[DRAFT TS] Modules</td>
Richard Smith	29c5f16	2017-07-06 00:29:13 +0000	[diff] [blame]	981	<td><a href="http://wg21.link/n4667">N4667</a></td>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	982	<td><tt>-fmodules-ts</tt></td>
				983	<td class="none" align="center">WIP</td>
Richard Smith	f006a96	2016-03-04 21:01:14 +0000	[diff] [blame]	984	</tr>
				985	<tr>
Richard Smith	894835f	2015-11-05 21:41:06 +0000	[diff] [blame]	986	<td>[TS] Transactional Memory</td>
Richard Smith	85864d5	2015-11-26 02:23:21 +0000	[diff] [blame]	987	<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4514.pdf">N4514</a></td>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	988	<td></td>
Richard Smith	3a0ed87	2014-02-15 00:29:00 +0000	[diff] [blame]	989	<td class="none" align="center">No</td>
				990	</tr>
Richard Smith	91e474f	2013-11-27 22:58:16 +0000	[diff] [blame]	991	</table>
Richard Smith	e2bf878	2016-09-28 21:01:37 +0000	[diff] [blame]	992	</details>
Richard Smith	91e474f	2013-11-27 22:58:16 +0000	[diff] [blame]	993
Cedric Venet	08438133	2009-02-14 20:20:19 +0000	[diff] [blame]	994	</div>
				995	</body>
				996	</html>