Gitiles
Code Review Sign In
gerrit-public.fairphone.software / toolchain / llvm-project / 3a2dc6f00c779b9b78b3f599c725d5ae3964deab / . / clang / www / cxx_status.html
blob: c7360caadb43bbe4b04aab8357e717f7656f0893 [file] [log] [blame]
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
2 "http://www.w3.org/TR/html4/strict.dtd">
3<html>
4<head>
Gabor Greifdd4ddf12009-02-25 15:22:45 +0000[diff] [blame]5 <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]6 <title>Clang - C++1z, C++14, C++11 and C++98 Status</title>
Gabor Greifdd4ddf12009-02-25 15:22:45 +0000[diff] [blame]7 <link type="text/css" rel="stylesheet" href="menu.css">
8 <link type="text/css" rel="stylesheet" href="content.css">
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]9 <style type="text/css">
Michael J. Spencere73bd642011-11-02 06:29:37 +0000[diff] [blame]10 .none { background-color: #FFCCCC }
Richard Smith452d6b02013-05-04 07:02:10 +0000[diff] [blame]11 .partial { background-color: #FFE0B0 }
Richard Smithb9a7efd2012-02-14 22:39:23 +0000[diff] [blame]12 .svn { background-color: #FFFF99 }
Michael J. Spencere73bd642011-11-02 06:29:37 +0000[diff] [blame]13 .full { background-color: #CCFF99 }
Richard Smith6d244d72012-03-11 03:06:00 +0000[diff] [blame]14 .na { background-color: #DDDDDD }
Richard Smith9deb9d92013-03-12 19:56:09 +0000[diff] [blame]15 span:target { background-color: #FFFFBB; outline: #DDDD55 solid thin; }
Benjamin Kramer1c9e1582011-11-05 10:11:36 +0000[diff] [blame]16 th { background-color: #FFDDAA }
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]17 </style>
18</head>
19<body>
20
21<!--#include virtual="menu.html.incl"-->
22
23<div id="content">
24
25<!--*************************************************************************-->
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]26<h1>C++ Support in Clang</h1>
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]27<!--*************************************************************************-->
Douglas Gregor0799d912009-06-27 19:33:58 +0000[diff] [blame]28<p>Last updated: $Date$</p>
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]29
Alp Toker05f89432013-12-06 06:35:49 +0000[diff] [blame]30<p>Clang fully implements all published ISO C++ standards including <a
Richard Smith20f37672014-08-31 04:17:48 +0000[diff] [blame]31href="#cxx11">C++11</a>, as well as the upcoming <a
32href="#cxx14">C++14</a> standard, and some parts of the fledgling <a
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]33href="#cxx17">C++1z</a> standard,
34and is considered a production-quality C++ compiler.
Alp Toker05f89432013-12-06 06:35:49 +0000[diff] [blame]35
Richard Smith60586342013-12-09 08:52:23 +0000[diff] [blame]36<p>The Clang community is continually striving to improve C++ standards
Alp Toker05f89432013-12-06 06:35:49 +0000[diff] [blame]37compliance between releases by submitting and tracking <a
38href="cxx_dr_status.html">C++ Defect Reports</a> and implementing resolutions
39as they become available.</p>
40
41<p>Experimental work is also under way to implement <a href="#ts">C++ Technical
42Specifications</a> that will help drive the future of the C++ programming
43language.</p>
44
Richard Smith60586342013-12-09 08:52:23 +0000[diff] [blame]45<p>The <a href="http://llvm.org/bugs/">LLVM bug tracker</a> contains Clang
46C++ components that track known bugs with Clang's language conformance in
47each language mode.</p>
48
Richard Smith18743de2012-02-24 18:42:08 +0000[diff] [blame]49<h2 id="cxx98">C++98 implementation status</h2>
50
Alp Toker05f89432013-12-06 06:35:49 +0000[diff] [blame]51<p>Clang implements all of the ISO C++ 1998 standard
Douglas Gregor17aa45d2011-07-21 17:46:15 +0000[diff] [blame]52 (including the defects addressed in the ISO C++ 2003 standard)
Richard Smith707e3ba2014-06-22 16:00:05 +0000[diff] [blame]53 except for <tt>export</tt> (which was removed in C++11).
Douglas Gregorbb26a922010-02-05 23:51:14 +0000[diff] [blame]54
Richard Smith18743de2012-02-24 18:42:08 +0000[diff] [blame]55<h2 id="cxx11">C++11 implementation status</h2>
Chris Lattner6fe37482010-05-21 20:59:40 +0000[diff] [blame]56
Richard Smith707e3ba2014-06-22 16:00:05 +0000[diff] [blame]57 <p>Clang 3.3 and later implement all of the <a
Richard Smith25b555a2013-04-19 17:00:31 +0000[diff] [blame]58 href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=50372">ISO
59 C++ 2011 standard</a>. The following table describes the Clang version
60 in which each feature became available.</p>
Chris Lattner6fe37482010-05-21 20:59:40 +0000[diff] [blame]61
Richard Smith531c9a02013-03-10 00:11:00 +0000[diff] [blame]62<p>By default, Clang builds C++ code according to the C++98 standard, with many
63C++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
65with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++, but
66patches are needed to make <a href="libstdc++4.4-clang0x.patch">libstdc++-4.4</a>
Richard Smith2ddcbab2012-10-23 00:32:41 +0000[diff] [blame]67work with Clang in C++11 mode. Patches are also needed to make
Richard Smith96c07b12013-11-05 09:12:55 +0000[diff] [blame]68<a href="libstdc++4.6-clang11.patch">libstdc++-4.6</a>
Richard Smith2ddcbab2012-10-23 00:32:41 +0000[diff] [blame]69and <a href="libstdc++4.7-clang11.patch">libstdc++-4.7</a> work with Clang
Richard Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]70releases prior to version 3.2 in C++11 mode.
Jeffrey Yasskincb407572011-03-29 22:27:50 +0000[diff] [blame]71
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]72<table width="689" border="1" cellspacing="0">
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]73 <tr>
Benjamin Kramer1c9e1582011-11-05 10:11:36 +0000[diff] [blame]74 <th>Language Feature</th>
Richard Smith18743de2012-02-24 18:42:08 +0000[diff] [blame]75 <th>C++11 Proposal</th>
Benjamin Kramer1c9e1582011-11-05 10:11:36 +0000[diff] [blame]76 <th>Available in Clang?</th>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]77 </tr>
78 <tr>
79 <td>Rvalue references</td>
80 <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 +0000[diff] [blame]81 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]82 </tr>
83 <tr>
84 <td>&nbsp;&nbsp;&nbsp;&nbsp;Rvalue references for <code>*this</code></td>
85 <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 +0000[diff] [blame]86 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]87 </tr>
88 <tr>
89 <td>Initialization of class objects by rvalues</td>
90 <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 +0000[diff] [blame]91 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]92 </tr>
93 <tr>
94 <td>Non-static data member initializers</td>
95 <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 +0000[diff] [blame]96 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]97 </tr>
98 <tr>
99 <td>Variadic templates</td>
100 <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 +0000[diff] [blame]101 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]102 </tr>
103 <tr>
104 <td>&nbsp;&nbsp;&nbsp;&nbsp;Extending variadic template template parameters</td>
105 <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 +0000[diff] [blame]106 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]107 </tr>
108 <tr>
109 <td>Initializer lists</td>
110 <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 +0000[diff] [blame]111 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]112 </tr>
113 <tr>
114 <td>Static assertions</td>
115 <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 +0000[diff] [blame]116 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]117 </tr>
118 <tr>
119 <td><code>auto</code>-typed variables</td>
120 <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 +0000[diff] [blame]121 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]122 </tr>
123 <tr>
124 <td>&nbsp;&nbsp;&nbsp;&nbsp;Multi-declarator <code>auto</code></td>
125 <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 +0000[diff] [blame]126 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]127 </tr>
128 <tr>
129 <td>&nbsp;&nbsp;&nbsp;&nbsp;Removal of auto as a storage-class specifier</td>
130 <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 +0000[diff] [blame]131 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]132 </tr>
133 <tr>
134 <td>&nbsp;&nbsp;&nbsp;&nbsp;New function declarator syntax</td>
135 <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 +0000[diff] [blame]136 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]137 </tr>
138 <tr>
Douglas Gregor34b2e8b2012-02-23 03:02:32 +0000[diff] [blame]139 <td>Lambda expressions</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]140 <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 +0000[diff] [blame]141 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]142 </tr>
143 <tr>
144 <td>Declared type of an expression</td>
145 <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 +0000[diff] [blame]146 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]147 </tr>
148 <tr>
Douglas Gregor05989622012-04-10 20:00:33 +0000[diff] [blame]149 <td>&nbsp;&nbsp;&nbsp;&nbsp;Incomplete return types</td>
150 <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 +0000[diff] [blame]151 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor05989622012-04-10 20:00:33 +0000[diff] [blame]152 </tr>
153 <tr>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]154 <td>Right angle brackets</td>
155 <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 +0000[diff] [blame]156 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]157 </tr>
158 <tr>
159 <td>Default template arguments for function templates</td>
160 <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 +0000[diff] [blame]161 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]162 </tr>
163 <tr>
164 <td>Solving the SFINAE problem for expressions</td>
165 <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 +0000[diff] [blame]166 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]167 </tr>
168 <tr>
169 <td>Alias templates</td>
170 <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 +0000[diff] [blame]171 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]172 </tr>
173 <tr>
174 <td>Extern templates</td>
175 <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 +0000[diff] [blame]176 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]177 </tr>
178 <tr>
179 <td>Null pointer constant</td>
180 <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 +0000[diff] [blame]181 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]182 </tr>
183 <tr>
184 <td>Strongly-typed enums</td>
185 <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 +0000[diff] [blame]186 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]187 </tr>
188 <tr>
189 <td>Forward declarations for enums</td>
Richard Smith4b38ded2012-03-14 23:13:10 +0000[diff] [blame]190 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2764.pdf">N2764</a>
191 <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 +0000[diff] [blame]192 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]193 </tr>
194 <tr>
Richard Smith3dd73db2014-01-17 00:11:48 +0000[diff] [blame]195 <td>Standardized attribute syntax</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]196 <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 +0000[diff] [blame]197 <td class="full" align="center">Clang 3.3 <a href="#n2761">(1)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]198 </tr>
199 <tr>
200 <td>Generalized constant expressions</td>
201 <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 +0000[diff] [blame]202 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]203 </tr>
204 <tr>
205 <td>Alignment support</td>
206 <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 +0000[diff] [blame]207 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]208 </tr>
Richard Smith7e34fbd2014-03-14 21:21:24 +0000[diff] [blame]209 <tr>
210 <td>Conditionally-support behavior</td>
211 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1627.pdf">N1627</a></td>
212 <td class="full" align="center">Clang 2.9</td>
213 </tr>
214 <tr>
215 <td>Changing undefined behavior into diagnosable errors</td>
216 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1727.pdf">N1727</a></td>
217 <td class="full" align="center">Clang 2.9</td>
218 </tr>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]219 <tr>
220 <td>Delegating constructors</td>
221 <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 +0000[diff] [blame]222 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]223 </tr>
224 <tr>
225 <td>Inheriting constructors</td>
226 <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 +0000[diff] [blame]227 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]228 </tr>
229 <tr>
230 <td>Explicit conversion operators</td>
231 <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 +0000[diff] [blame]232 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]233 </tr>
234 <tr>
235 <td>New character types</td>
236 <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 +0000[diff] [blame]237 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]238 </tr>
239 <tr>
240 <td>Unicode string literals</td>
241 <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 +0000[diff] [blame]242 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]243 </tr>
244 <tr>
245 <td>Raw string literals</td>
246 <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 +0000[diff] [blame]247 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]248 </tr>
249 <tr>
Richard Smith2a70e652012-03-09 22:27:51 +0000[diff] [blame]250 <td>Universal character names in literals</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]251 <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 +0000[diff] [blame]252 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]253 </tr>
254 <tr>
255 <td>User-defined literals</td>
256 <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 +0000[diff] [blame]257 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]258 </tr>
259 <tr>
260 <td>Standard Layout Types</td>
261 <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 +0000[diff] [blame]262 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]263 </tr>
264 <tr>
Douglas Gregor7ff1e7e2011-10-28 19:44:09 +0000[diff] [blame]265 <td>Defaulted functions</td>
266 <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 +0000[diff] [blame]267 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor7ff1e7e2011-10-28 19:44:09 +0000[diff] [blame]268 </tr>
269 <tr>
270 <td>Deleted functions</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]271 <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 +0000[diff] [blame]272 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]273 </tr>
274 <tr>
275 <td>Extended friend declarations</td>
276 <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 +0000[diff] [blame]277 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]278 </tr>
279 <tr>
280 <td>Extending <code>sizeof</code></td>
Richard Smith4e837622012-02-24 18:37:14 +0000[diff] [blame]281 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2253.html">N2253</a>
282 <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 +0000[diff] [blame]283 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]284 </tr>
285 <tr>
286 <td>Inline namespaces</td>
287 <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 +0000[diff] [blame]288 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]289 </tr>
290 <tr>
291 <td>Unrestricted unions</td>
292 <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 +0000[diff] [blame]293 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]294 </tr>
295 <tr>
296 <td>Local and unnamed types as template arguments</td>
297 <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 +0000[diff] [blame]298 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]299 </tr>
300 <tr>
301 <td>Range-based for</td>
302 <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 +0000[diff] [blame]303 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]304 </tr>
305 <tr>
306 <td>Explicit virtual overrides</td>
307 <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 +0000[diff] [blame]308 <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">N3206</a>
309 <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 +0000[diff] [blame]310 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]311 </tr>
312 <tr>
313 <td>Minimal support for garbage collection and reachability-based leak detection</td>
314 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2670.htm">N2670</a></td>
Richard Smithd997cce2014-03-14 20:26:09 +0000[diff] [blame]315 <td class="na" align="center">N/A <a href="#n2670">(2)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]316 </tr>
317 <tr>
318 <td>Allowing move constructors to throw [noexcept]</td>
David Blaikie50361612011-11-02 15:13:40 +0000[diff] [blame]319 <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 +0000[diff] [blame]320 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]321 </tr>
322 <tr>
323 <td>Defining move special member functions</td>
David Blaikie50361612011-11-02 15:13:40 +0000[diff] [blame]324 <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 +0000[diff] [blame]325 <td class="full" align="center">Clang 3.0</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]326 </tr>
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]327
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]328 <tr class="separator">
Benjamin Kramer1c9e1582011-11-05 10:11:36 +0000[diff] [blame]329 <th align="center" colspan="3">Concurrency</th>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]330 </tr>
331 <tr>
332 <td>Sequence points</td>
333 <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 +0000[diff] [blame]334 <td class="full" align="center">Clang 3.3</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]335 </tr>
336 <tr>
337 <td>Atomic operations</td>
338 <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 +0000[diff] [blame]339 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]340 </tr>
341 <tr>
342 <td>Strong Compare and Exchange</td>
343 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2748.html">N2748</a></td>
Richard Smithd997cce2014-03-14 20:26:09 +0000[diff] [blame]344 <td class="full" align="center">Clang 3.1 <a href="#n2748">(3)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]345 </tr>
346 <tr>
347 <td>Bidirectional Fences</td>
348 <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 +0000[diff] [blame]349 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]350 </tr>
Douglas Gregor6b6e0822010-12-21 05:43:31 +0000[diff] [blame]351
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]352 <tr>
353 <td>Memory model</td>
354 <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 +0000[diff] [blame]355 <td class="full" align="center">Clang 3.2</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]356 </tr>
357 <tr>
358 <td>Data-dependency ordering: atomics and memory model</td>
359 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2664.htm">N2664</a></td>
Richard Smithd997cce2014-03-14 20:26:09 +0000[diff] [blame]360 <td class="full" align="center">Clang 3.2 <a href="#n2664">(4)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]361 </tr>
362 <tr>
363 <td>Propagating exceptions</td>
364 <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 +0000[diff] [blame]365 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]366 </tr>
367 <tr>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]368 <td>Allow atomics use in signal handlers</td>
369 <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 +0000[diff] [blame]370 <td class="full" align="center">Clang 3.1</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]371 </tr>
372 <tr>
373 <td>Thread-local storage</td>
374 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2659.htm">N2659</a></td>
Richard Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]375 <td class="full" align="center">Clang 3.3 <a href="#n2659">(5)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]376 </tr>
377 <tr>
378 <td>Dynamic initialization and destruction with concurrency</td>
379 <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 +0000[diff] [blame]380 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]381 </tr>
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]382
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]383 <tr class="separator">
Richard Smith18743de2012-02-24 18:42:08 +0000[diff] [blame]384 <th align="center" colspan="3">C99 Features in C++11</th>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]385 </tr>
386 <tr>
387 <td><code>__func__</code> predefined identifier</td>
388 <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 +0000[diff] [blame]389 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]390 </tr>
391 <tr>
392 <td>C99 preprocessor</td>
393 <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 +0000[diff] [blame]394 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]395 </tr>
396 <tr>
397 <td><code>long long</code></td>
398 <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 +0000[diff] [blame]399 <td class="full" align="center">Clang 2.9</td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]400 </tr>
401 <tr>
402 <td>Extended integral types</td>
403 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1988.pdf">N1988</a></td>
Richard Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]404 <td class="na" align="center">N/A <a href="#n1988">(6)</a></td>
Douglas Gregor1f64b592011-10-14 23:21:49 +0000[diff] [blame]405 </tr>
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]406</table>
Richard Smith9deb9d92013-03-12 19:56:09 +0000[diff] [blame]407
408<p>
409<span id="n2761">(1): The <code>[[carries_dependency]]</code> attribute
Richard Smith38546ed2013-03-18 21:57:52 +0000[diff] [blame]410has no effect.</span><br>
Richard Smithd997cce2014-03-14 20:26:09 +0000[diff] [blame]411<span id="n2670">(2): No compiler changes are required for an implementation
412such as Clang that does not provide garbage collection.</span><br>
413<span id="n2748">(3): All compare-exchange operations are emitted as
Richard Smith38546ed2013-03-18 21:57:52 +0000[diff] [blame]414strong compare-exchanges.</span><br>
Richard Smithd997cce2014-03-14 20:26:09 +0000[diff] [blame]415<span id="n2664">(4): <code>memory_order_consume</code> is lowered to
Richard Smith38546ed2013-03-18 21:57:52 +0000[diff] [blame]416<code>memory_order_acquire</code>.</span><br>
Richard Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]417<span id="n2659">(5): <code>thread_local</code> support
418requires a C++ runtime library providing <code>__cxa_thread_atexit</code>, such
419as <a href="http://libcxxabi.llvm.org">libc++abi</a> 3.6 or later,
420or libsupc++ 4.8 or later.</span><br>
421<span id="n1988">(6): No compiler changes are required for an implementation
Richard Smithd997cce2014-03-14 20:26:09 +0000[diff] [blame]422such as Clang that does not provide any extended integer types.
423<code>__int128</code> is not treated as an extended integer type,
424because changing <code>intmax_t</code> would be an ABI-incompatible
425change.</span>
Richard Smith9deb9d92013-03-12 19:56:09 +0000[diff] [blame]426</p>
427
Richard Smith20f37672014-08-31 04:17:48 +0000[diff] [blame]428<h2 id="cxx14">C++14 implementation status</h2>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]429
Richard Smith707e3ba2014-06-22 16:00:05 +0000[diff] [blame]430<p>Clang 3.4 and later implement all of the Draft International Standard (see <a
Richard Smith7cebe462014-06-22 15:54:54 +0000[diff] [blame]431href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3797.pdf">most
432recent publicly available draft</a>)
Richard Smith20f37672014-08-31 04:17:48 +0000[diff] [blame]433of the upcoming C++14 language standard. The following table describes the
434Clang version in which each feature became available.</p>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]435
Richard Smith20f37672014-08-31 04:17:48 +0000[diff] [blame]436<p>You can use Clang in C++14 mode with the <code>-std=c++14</code> option
Richard Smith1b886322014-08-31 04:18:54 +0000[diff] [blame]437(use <code>-std=c++1y</code> in Clang 3.4 and earlier).</p>
Richard Smith4cf9a1e2013-04-20 13:22:50 +0000[diff] [blame]438
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]439<table width="689" border="1" cellspacing="0">
440 <tr>
441 <th>Language Feature</th>
Richard Smith20f37672014-08-31 04:17:48 +0000[diff] [blame]442 <th>C++14 Proposal</th>
Richard Smith91725202013-04-19 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 Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]448 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]449 </tr>
450 <tr>
Richard Smith0fa4fce2013-04-20 12:44:32 +0000[diff] [blame]451 <td>Binary literals</td>
Richard Smith91725202013-04-19 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 Kramereb0ad452015-02-09 11:48:43 +0000[diff] [blame]453 <td class="full" align="center">Clang 2.9</td>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]454 </tr>
455 <tr>
Richard Smith74aeef52013-04-26 16:15:35 +0000[diff] [blame]456 <td>decltype(auto)</td>
Richard Smithf2f6e1142013-05-09 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 Smith99247722013-06-17 23:54:23 +0000[diff] [blame]458 <td class="full" align="center">Clang 3.3</td>
Richard Smith74aeef52013-04-26 16:15:35 +0000[diff] [blame]459 </tr>
460 <tr>
Richard Smith5db8b282013-04-20 12:47:36 +0000[diff] [blame]461 <td>Return type deduction for normal functions</td>
Richard Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]462 <td class="full" align="center">Clang 3.4</td>
Richard Smith5db8b282013-04-20 12:47:36 +0000[diff] [blame]463 </tr>
Richard Smith0fa4fce2013-04-20 12:44:32 +0000[diff] [blame]464 <tr>
Richard Smith5db8b282013-04-20 12:47:36 +0000[diff] [blame]465 <td>Initialized lambda captures</td>
Richard Smithf2f6e1142013-05-09 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 Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]467 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]468 </tr>
469 <tr>
Richard Smith7898d7b2013-04-20 12:58:57 +0000[diff] [blame]470 <td>Generic lambdas</td>
Richard Smithf2f6e1142013-05-09 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 Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]472 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]473 </tr>
474 <tr>
Richard Smith7898d7b2013-04-20 12:58:57 +0000[diff] [blame]475 <td>Variable templates</td>
Richard Smithf2f6e1142013-05-09 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 Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]477 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]478 </tr>
479 <tr>
Richard Smith7feda2f2013-04-20 12:49:36 +0000[diff] [blame]480 <td>Relaxing requirements on constexpr functions</td>
Richard Smithf2f6e1142013-05-09 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 Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]482 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]483 </tr>
484 <tr>
Richard Smith5db8b282013-04-20 12:47:36 +0000[diff] [blame]485 <td>Member initializers and aggregates</td>
Richard Smithf2f6e1142013-05-09 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 Smith99247722013-06-17 23:54:23 +0000[diff] [blame]487 <td class="full" align="center">Clang 3.3</td>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]488 </tr>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]489 <tr>
Richard Smithd3a73862013-04-20 12:57:49 +0000[diff] [blame]490 <td>Clarifying memory allocation</td>
Richard Smithf2f6e1142013-05-09 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 Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]492 <td class="full" align="center">Clang 3.4</td>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]493 </tr>
Richard Smith3ca005b2013-09-27 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 Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]497 <td class="full" align="center">Clang 3.4</td>
Richard Smith3ca005b2013-09-27 19:11:33 +0000[diff] [blame]498 </tr>
499 <tr>
500 <td>Single quotation mark as digit separator</td>
Richard Smith2d1d3ca2013-11-05 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 Smith7fe89622014-02-03 06:58:08 +0000[diff] [blame]502 <td class="full" align="center">Clang 3.4</td>
Richard Smith3ca005b2013-09-27 19:11:33 +0000[diff] [blame]503 </tr>
504 <tr>
Benjamin Kramer8ba47d02013-09-27 19:35:09 +0000[diff] [blame]505 <td>C++ Sized Deallocation</td>
Richard Smith2d1d3ca2013-11-05 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 Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]507 <td class="full" align="center">Clang 3.4 <a href="#n3778">(7)</a></td>
Richard Smith3ca005b2013-09-27 19:11:33 +0000[diff] [blame]508 </tr>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]509</table>
Reid Kleckner7ffc3fb2015-03-20 00:31:07 +0000[diff] [blame]510
Larisse Voufoee3c1b22015-02-19 04:34:13 +0000[diff] [blame]511<p>
Richard Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]512<span id="n3778">(7): In Clang 3.7 and later, sized deallocation is only enabled
Reid Kleckner7ffc3fb2015-03-20 00:31:07 +0000[diff] [blame]513if the user passes the <code>-fsized-deallocation</code> flag. The user must
514supply definitions of the sized deallocation functions, either by providing them
515explicitly or by using a C++ standard library that does. <code>libstdc++</code>
516added these functions in version 5.0, and <code>libc++</code> added them in
517version 3.7.
Larisse Voufoee3c1b22015-02-19 04:34:13 +0000[diff] [blame]518</span>
519</p>
Richard Smith91725202013-04-19 17:27:48 +0000[diff] [blame]520
Richard Smith76b9f232013-11-07 06:41:26 +0000[diff] [blame]521<h2 id="cxx17">C++1z implementation status</h2>
522
Richard Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]523<p>Clang has <b>experimental</b> support for some proposed features of
524the C++ standard following C++14, provisionally named C++1z.
525The following table describes which C++1z features
Richard Smith76b9f232013-11-07 06:41:26 +0000[diff] [blame]526have been implemented in Clang and in which Clang version they became
527available.</p>
528
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]529<p>Note that support for these features may change or be removed without notice,
530as the draft C++1z standard evolves.</p>
531
Richard Smith76b9f232013-11-07 06:41:26 +0000[diff] [blame]532<p>You can use Clang in C++1z mode with the <code>-std=c++1z</code> option.</p>
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]533
534<table width="689" border="1" cellspacing="0">
535 <tr>
536 <th>Language Feature</th>
537 <th>C++1z Proposal</th>
538 <th>Available in Clang?</th>
539 </tr>
Richard Smith0f0af192014-11-08 05:07:16 +0000[diff] [blame]540 <!-- Issaquah papers -->
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]541 <tr>
542 <td><tt>static_assert</tt> with no message</td>
543 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3928.pdf">N3928</a></td>
Richard Smithee0a49c2014-09-11 17:30:32 +0000[diff] [blame]544 <td class="full" align="center">Clang 3.5</td>
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]545 </tr>
Richard Smith0f0af192014-11-08 05:07:16 +0000[diff] [blame]546 <!-- Rapperswil papers -->
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]547 <tr>
548 <td>Disabling trigraph expansion by default</td>
Richard Smith410cc892014-11-26 03:26:53 +0000[diff] [blame]549 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4086.html">N4086</a></td>
Richard Smithee0a49c2014-09-11 17:30:32 +0000[diff] [blame]550 <td class="full" align="center">Clang 3.5</td>
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]551 </tr>
Richard Smith83d3f152014-11-27 01:54:27 +0000[diff] [blame]552 <!--
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]553 <tr>
Richard Smith83d3f152014-11-27 01:54:27 +0000[diff] [blame]554 <td rowspan="2">Terse range-based for loops (removed from C++1z)</td>
555 <td rowspan="2"><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3994.htm">N3994</a></td>
556 <td class="none" align="center">Clang 3.5: Yes</td>
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]557 </tr>
558 <tr>
Richard Smith83d3f152014-11-27 01:54:27 +0000[diff] [blame]559 <td class="svn" align="center">SVN: No</td>
560 </tr>
561 -->
562 <tr>
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]563 <td><tt>typename</tt> in a template template parameter</td>
564 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4051.html">N4051</a></td>
Richard Smithee0a49c2014-09-11 17:30:32 +0000[diff] [blame]565 <td class="full" align="center">Clang 3.5</td>
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]566 </tr>
Richard Smith410cc892014-11-26 03:26:53 +0000[diff] [blame]567 <tr>
568 <td>New <tt>auto</tt> rules for direct-list-initialization
569 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3922.html">N3922</a></td>
Richard Smith25dde972016-03-20 10:37:12 +0000[diff] [blame]570 <td class="full" align="center">Clang 3.8 <a href="#n3922">(8)</a></td>
Richard Smith410cc892014-11-26 03:26:53 +0000[diff] [blame]571 </tr>
Richard Smith0f0af192014-11-08 05:07:16 +0000[diff] [blame]572 <!-- Urbana papers -->
573 <tr>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]574 <td rowspan="2">Fold expressions</td>
Benjamin Kramereb0ad452015-02-09 11:48:43 +0000[diff] [blame]575 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4295.html">N4295</a></td>
Richard Smith42b10572015-11-11 01:36:17 +0000[diff] [blame]576 <td class="full" align="center">Clang 3.6</td>
Richard Smith3e3a7052014-11-08 06:08:42 +0000[diff] [blame]577 </tr>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]578 <tr> <!-- from Jacksonville -->
579 <td><a href="http://wg21.link/p0036r0">P0036R0</a></td>
Richard Smith8ee39e32016-03-04 21:27:21 +0000[diff] [blame]580 <td class="svn" align="center">SVN</td>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]581 </tr>
Richard Smith3e3a7052014-11-08 06:08:42 +0000[diff] [blame]582 <tr>
583 <td><tt>u8</tt> character literals</td>
Benjamin Kramereb0ad452015-02-09 11:48:43 +0000[diff] [blame]584 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4267.html">N4267</a></td>
Richard Smith42b10572015-11-11 01:36:17 +0000[diff] [blame]585 <td class="full" align="center">Clang 3.6</td>
Richard Smith0f0af192014-11-08 05:07:16 +0000[diff] [blame]586 </tr>
Richard Smith13307f52014-11-08 05:37:34 +0000[diff] [blame]587 <tr>
588 <td>Nested namespace definition</td>
Benjamin Kramereb0ad452015-02-09 11:48:43 +0000[diff] [blame]589 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4230.html">N4230</a></td>
Richard Smith42b10572015-11-11 01:36:17 +0000[diff] [blame]590 <td class="full" align="center">Clang 3.6</td>
Richard Smith13307f52014-11-08 05:37:34 +0000[diff] [blame]591 </tr>
Aaron Ballman730476b2014-11-08 15:33:35 +0000[diff] [blame]592 <tr>
593 <td>Attributes for namespaces and enumerators</td>
Benjamin Kramereb0ad452015-02-09 11:48:43 +0000[diff] [blame]594 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4266.html">N4266</a></td>
Richard Smith42b10572015-11-11 01:36:17 +0000[diff] [blame]595 <td class="full" align="center">Clang 3.6</td>
Aaron Ballman730476b2014-11-08 15:33:35 +0000[diff] [blame]596 </tr>
Richard Smith410cc892014-11-26 03:26:53 +0000[diff] [blame]597 <tr>
598 <td>Allow constant evaluation for all non-type template arguments</td>
Benjamin Kramereb0ad452015-02-09 11:48:43 +0000[diff] [blame]599 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4268.html">N4268</a></td>
Richard Smith42b10572015-11-11 01:36:17 +0000[diff] [blame]600 <td class="full" align="center">Clang 3.6</td>
Richard Smith410cc892014-11-26 03:26:53 +0000[diff] [blame]601 </tr>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]602 <!-- Kona papers -->
603 <tr>
604 <td>Remove deprecated <tt>register</tt> storage class</td>
605 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0001r1.html">P0001R1</a></td>
Richard Smith25dde972016-03-20 10:37:12 +0000[diff] [blame]606 <td class="full" align="center">Clang 3.8</td>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]607 </tr>
608 <tr>
609 <td>Remove deprecated <tt>bool</tt> increment</td>
610 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0002r1.html">P0002R1</a></td>
Richard Smith25dde972016-03-20 10:37:12 +0000[diff] [blame]611 <td class="full" align="center">Clang 3.8</td>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]612 </tr>
613 <tr>
614 <td>Make exception specifications part of the type system</td>
615 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0012r1.html">P0012R1</a></td>
Richard Smith3f22bf92015-11-05 21:42:32 +0000[diff] [blame]616 <td class="none" align="center">No</td>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]617 </tr>
618 <tr>
Richard Smith4a0cd892015-11-26 02:16:37 +0000[diff] [blame]619 <td><tt>__has_include</tt> in preprocessor conditionals</td>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]620 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0061.html">P0061R1</a></td>
621 <td class="full" align="center">Yes</td>
622 </tr>
Richard Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]623 <tr>
624 <td>New specification for inheriting constructors (<a href="cxx_dr_status.html#1941">DR1941</a> et al)</td>
625 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0136r1.html">P0136R1</a></td>
626 <td class="none" align="center">No</td>
627 </tr>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]628 <!-- Jacksonville papers -->
629 <tr>
630 <td><tt>[[fallthrough]]</tt> attribute</td>
631 <td><a href="http://wg21.link/p0188r1">P0188R1</a></td>
Richard Smith89e95972016-03-08 00:45:37 +0000[diff] [blame]632 <td class="svn" align="center">SVN</td>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]633 </tr>
634 <tr>
635 <td><tt>[[nodiscard]]</tt> attribute</td>
636 <td><a href="http://wg21.link/p0189r1">P0189R1</a></td>
Richard Smith89e95972016-03-08 00:45:37 +0000[diff] [blame]637 <td class="svn" align="center">SVN</td>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]638 </tr>
639 <tr>
640 <td><tt>[[maybe_unused]]</tt> attribute</td>
641 <td><a href="http://wg21.link/p0212r1">P0212R1</a></td>
Aaron Ballman0bcd6c12016-03-09 16:48:08 +0000[diff] [blame]642 <td class="svn" align="center">SVN</td>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]643 </tr>
644 <tr>
645 <td>Aggregate initialization of classes with base classes</td>
646 <td><a href="http://wg21.link/p0017r1">P0017R1</a></td>
Richard Smith872307e2016-03-08 22:17:41 +0000[diff] [blame]647 <td class="svn" align="center">SVN</td>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]648 </tr>
649 <tr>
650 <td><tt>constexpr</tt> lambda expressions</td>
651 <td><a href="http://wg21.link/p0170r1">P0170R1</a></td>
652 <td class="none" align="center">No</td>
653 </tr>
654 <tr>
655 <td>Differing <tt>begin</tt> and <tt>end</tt> types in range-based <tt>for</tt></td>
656 <td><a href="http://wg21.link/p0184r0">P0184R0</a></td>
Richard Smith01694c32016-03-20 10:33:40 +0000[diff] [blame]657 <td class="svn" align="center">SVN</td>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]658 </tr>
659 <tr>
660 <td>Lambda capture of <tt>*this</tt></td>
661 <td><a href="http://wg21.link/p0018r3">P0018R3</a></td>
Faisal Validc6b5962016-03-21 09:25:37 +0000[diff] [blame]662 <td class="svn" align="center">SVN</td>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]663 </tr>
664 <tr>
665 <td>Direct-list-initialization of <tt>enum</tt>s</td>
666 <td><a href="http://wg21.link/p0138r2">P0138R2</a></td>
Richard Smithed638862016-03-28 06:08:37 +0000[diff] [blame]667 <td class="svn" align="center">SVN</td>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]668 </tr>
669 <tr>
670 <td>Hexadecimal floating-point literals</td>
671 <td><a href="http://wg21.link/p0245r1">P0245R1</a></td>
672 <td class="full" align="center">Yes</td>
673 </tr>
Richard Smithb130fe72016-06-23 19:16:49 +0000[diff] [blame]674 <!-- Oulu papers -->
Richard Smith74f56e72016-06-24 11:20:31 +0000[diff] [blame]675 <tr>
676 <td>Using attribute namespaces without repetition</td>
677 <td><a href="http://wg21.link/p0028r4">P0028R4</a></td>
Richard Smith5bb7d7a2016-06-24 12:16:11 +0000[diff] [blame]678 <td class="svn" align="center">SVN</td>
Richard Smith74f56e72016-06-24 11:20:31 +0000[diff] [blame]679 </tr>
680 <tr>
681 <td>Dynamic memory allocation for over-aligned data</td>
682 <td><a href="http://wg21.link/p0035r4">P0035R4</a></td>
683 <td class="none" align="center">No</td>
684 </tr>
685 <tr>
686 <td>Template argument deduction for class templates</td>
687 <td><a href="http://wg21.link/p0091r3">P0091R3</a></td>
688 <td class="none" align="center">No</td>
689 </tr>
690 <tr>
Richard Smith3a2dc6f02016-06-24 12:21:30 +0000[diff] [blame^]691 <td>Non-type template parameters with <tt>auto</tt> type</td>
Richard Smith74f56e72016-06-24 11:20:31 +0000[diff] [blame]692 <td><a href="http://wg21.link/p0127r2">P0127R2</a></td>
693 <td class="none" align="center">No</td>
694 </tr>
695 <tr>
696 <td>Guaranteed copy elision</td>
697 <td><a href="http://wg21.link/p0135r1">P0135R1</a></td>
698 <td class="none" align="center">No</td>
699 </tr>
Richard Smith3a2dc6f02016-06-24 12:21:30 +0000[diff] [blame^]700 <!--
Richard Smith74f56e72016-06-24 11:20:31 +0000[diff] [blame]701 <tr>
702 <td>Stricter expression evaluation order</td>
703 <td><a href="http://wg21.link/p0145r3">P0145R3</a></td>
704 <td class="none" align="center">No</td>
705 </tr>
706 <tr>
707 <td>Classes are comparable by default</td>
708 <td><a href="http://wg21.link/p0221r2">P0221R2</a></td>
709 <td class="none" align="center">No</td>
710 </tr>
711 <tr>
712 <td>Requirement to ignore unknown attributes</td>
713 <td><a href="http://wg21.link/p0283r2">P0283R2</a></td>
714 <td class="full" align="center">Yes</td>
715 </tr>
716 -->
Richard Smithb130fe72016-06-23 19:16:49 +0000[diff] [blame]717 <tr>
718 <td><tt>constexpr</tt> <em>if-statement</em>s</td>
719 <td><a href="http://wg21.link/p0292r2">P0292R2</a></td>
720 <td class="svn" align="center">SVN</td>
721 </tr>
Richard Smith74f56e72016-06-24 11:20:31 +0000[diff] [blame]722 <!--
723 <tr>
724 <td>Inline variables</td>
725 <td><a href="http://wg21.link/p0386r2">P0386R2</a></td>
726 <td class="none" align="center">No</td>
727 </tr>
728 <tr>
729 <td>Structured bindings</td>
730 <td><a href="http://wg21.link/p0217r3">P0217R3</a></td>
731 <td class="none" align="center">No</td>
732 </tr>
733 <tr>
734 <td>Separate variable and condition for <tt>if</tt>, <tt>while</tt>, and <tt>switch</tt></td>
735 <td><a href="http://wg21.link/p0305r1">P0305R1</a></td>
736 <td class="none" align="center">No</td>
737 </tr>
738 -->
Richard Smithcf31c6b2014-06-20 20:33:10 +0000[diff] [blame]739</table>
Richard Smith76b9f232013-11-07 06:41:26 +0000[diff] [blame]740
Richard Smith42b10572015-11-11 01:36:17 +0000[diff] [blame]741<p>
Richard Smith952923b2016-02-09 22:48:14 +0000[diff] [blame]742<span id="n3922">(8): This is a backwards-incompatible change that is applied to
Richard Smith42b10572015-11-11 01:36:17 +0000[diff] [blame]743all language versions that allow type deduction from <tt>auto</tt>
744(per the request of the C++ committee).
745In Clang 3.7, a warning is emitted for all cases that would change meaning.
746</span>
747</p>
748
Richard Smith91e474f2013-11-27 22:58:16 +0000[diff] [blame]749<h2 id="ts">Technical specifications and standing documents</h2>
750
751<p>ISO C++ also publishes a number of documents describing additional language
752and library features that are not part of standard C++. The following table
753describes which language features have been implemented in Clang and in which
754Clang version they became available:</p>
755
756<table width="689" border="1" cellspacing="0">
757 <tr>
758 <th>Document</th>
759 <th>Latest draft</th>
760 <th>Available in Clang?</th>
761 </tr>
762 <tr>
Richard Smith38af8562014-11-12 21:16:38 +0000[diff] [blame]763 <td rowspan="2">SD-6: SG10 feature test recommendations</td>
764 <td rowspan="2"><a href="http://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations">SD-6</a></td>
765 <td class="full" align="center">
766 Clang 3.4 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3745">N3745</a>)</br>
767 </td>
768 </tr>
769 <tr>
Richard Smith42b10572015-11-11 01:36:17 +0000[diff] [blame]770 <td class="full" align="center">
Benjamin Kramereb0ad452015-02-09 11:48:43 +0000[diff] [blame]771 Clang 3.6 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4200">N4200</a>)</a>
Richard Smith38af8562014-11-12 21:16:38 +0000[diff] [blame]772 </td>
Richard Smith91e474f2013-11-27 22:58:16 +0000[diff] [blame]773 </tr>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]774 <!-- FIXME: Implement latest recommendations.
Richard Smith91e474f2013-11-27 22:58:16 +0000[diff] [blame]775 <tr>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]776 <td class="svn" align="center">
777 SVN (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0096r0">P0096R0</a>)</a>
778 </td>
779 </tr>
780 -->
781 <!-- No compiler support is known to be needed for:
782 * Concurrency TS
783 * Parallelism TS
784 * Ranges TS
785 * Networking TS
786 * File System TS
787 -->
788 <tr>
789 <td>[TS] Concepts</td>
790 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0121r0.pdf">P0121R0</a></td>
Richard Smith91e474f2013-11-27 22:58:16 +0000[diff] [blame]791 <td class="none" align="center">No</td>
792 </tr>
Richard Smith3a0ed872014-02-15 00:29:00 +0000[diff] [blame]793 <tr>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]794 <td>[TS] Library Fundamentals, Version 1 (invocation type traits)</td>
Richard Smithea260412015-11-05 22:21:52 +0000[diff] [blame]795 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html">N4480</a></td>
Richard Smith3a0ed872014-02-15 00:29:00 +0000[diff] [blame]796 <td class="none" align="center">No</td>
797 </tr>
798 <tr>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]799 <td>[DRAFT TS] Library Fundamentals, Version 2 (<tt>source_location</tt>)</td>
800 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4529.html">N4529</a></td>
801 <td class="none" align="center">No</td>
802 </tr>
803 <tr>
Richard Smithf006a962016-03-04 21:01:14 +0000[diff] [blame]804 <td>[TS] Modules</td>
805 <td><a href="http://wg21.link/p0143r2">P0143R2</a></td>
806 <td class="none" align="center">No</td>
807 </tr>
808 <tr>
Richard Smith894835f2015-11-05 21:41:06 +0000[diff] [blame]809 <td>[TS] Transactional Memory</td>
Richard Smith85864d52015-11-26 02:23:21 +0000[diff] [blame]810 <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4514.pdf">N4514</a></td>
Richard Smith3a0ed872014-02-15 00:29:00 +0000[diff] [blame]811 <td class="none" align="center">No</td>
812 </tr>
Richard Smith91e474f2013-11-27 22:58:16 +0000[diff] [blame]813</table>
814
Cedric Venet084381332009-02-14 20:20:19 +0000[diff] [blame]815</div>
816</body>
817</html>