granicus.if.org Git - clang/blob - www/cxx_status.html

   1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
   2           "http://www.w3.org/TR/html4/strict.dtd">
   3 <html>
   4 <head>
   5   <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
   6   <title>Clang - C++14, C++11 and C++98 Status</title>
   7   <link type="text/css" rel="stylesheet" href="menu.css">
   8   <link type="text/css" rel="stylesheet" href="content.css">
   9   <style type="text/css">
  10     .none { background-color: #FFCCCC }
  11     .partial { background-color: #FFE0B0 }
  12     .svn  { background-color: #FFFF99 }
  13     .full { background-color: #CCFF99 }
  14     .na { background-color: #DDDDDD }
  15     span:target { background-color: #FFFFBB; outline: #DDDD55 solid thin; }
  16     th { background-color: #FFDDAA }
  17   </style>
  18 </head>
  19 <body>
  20
  21 <!--#include virtual="menu.html.incl"-->
  22
  23 <div id="content">
  24
  25 <!--*************************************************************************-->
  26 <h1>C++14, C++11 and C++98 Support in Clang</h1>
  27 <!--*************************************************************************-->
  28 <p>Last updated: $Date$</p>
  29
  30 <p>Clang fully implements all published ISO C++ standards including <a
  31 href="#cxx11">C++11</a>, as well as the upcoming standard provisionally named <a
  32 href="#cxx14">C++14</a>, and is considered a production-quality C++ compiler.
  33
  34 <p>The Clang community is continually striving to improve C++ standards
  35 compliance between releases by submitting and tracking <a
  36 href="cxx_dr_status.html">C++ Defect Reports</a> and implementing resolutions
  37 as they become available.</p>
  38
  39 <p>Experimental work is also under way to implement <a href="#ts">C++ Technical
  40 Specifications</a> that will help drive the future of the C++ programming
  41 language.</p>
  42
  43 <p>The <a href="http://llvm.org/bugs/">LLVM bug tracker</a> contains Clang
  44 C++ components that track known bugs with Clang's language conformance in
  45 each language mode.</p>
  46
  47 <h2 id="cxx98">C++98 implementation status</h2>
  48
  49 <p>Clang implements all of the ISO C++ 1998 standard
  50   (including the defects addressed in the ISO C++ 2003 standard)
  51   except for <tt>export</tt> (which has been removed in C++11).
  52
  53 <h2 id="cxx11">C++11 implementation status</h2>
  54
  55   <p>Clang implements all of the <a
  56     href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=50372">ISO
  57     C++ 2011 standard</a>. The following table describes the Clang version
  58   in which each feature became available.</p>
  59
  60 <p>By default, Clang builds C++ code according to the C++98 standard, with many
  61 C++11 features accepted as extensions. You can use Clang in C++11 mode with the
  62 <code>-std=c++11</code> option. Clang's C++11 mode can be used
  63 with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++, but
  64 patches are needed to make <a href="libstdc++4.4-clang0x.patch">libstdc++-4.4</a>
  65 work with Clang in C++11 mode. Patches are also needed to make
  66 <a href="libstdc++4.6-clang11.patch">libstdc++-4.6</a>
  67 and <a href="libstdc++4.7-clang11.patch">libstdc++-4.7</a> work with Clang
  68 releases prior to version 3.2 in C++11 mode. <tt>thread_local</tt> support
  69 currently requires the C++ runtime library from g++-4.8 or later.</p>
  70
  71 <table width="689" border="1" cellspacing="0">
  72  <tr>
  73     <th>Language Feature</th>
  74     <th>C++11 Proposal</th>
  75     <th>Available in Clang?</th>
  76  </tr>
  77      <tr>
  78       <td>Rvalue references</td>
  79       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html">N2118</a></td>
  80       <td class="full" align="center">Clang 2.9</td>
  81     </tr>
  82     <tr>
  83       <td>&nbsp;&nbsp;&nbsp;&nbsp;Rvalue references for <code>*this</code></td>
  84       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2439.htm">N2439</a></td>
  85       <td class="full" align="center">Clang 2.9</td>
  86     </tr>
  87     <tr>
  88       <td>Initialization of class objects by rvalues</td>
  89       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1610.html">N1610</a></td>
  90       <td class="full" align="center">Clang 2.9</td>
  91     </tr>
  92     <tr>
  93       <td>Non-static data member initializers</td>
  94       <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2008/n2756.htm">N2756</a></td>
  95       <td class="full" align="center">Clang 3.0</td>
  96     </tr>
  97     <tr>
  98       <td>Variadic templates</td>
  99       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2242.pdf">N2242</a></td>
 100       <td class="full" align="center">Clang 2.9</td>
 101     </tr>
 102     <tr>
 103       <td>&nbsp;&nbsp;&nbsp;&nbsp;Extending variadic template template parameters</td>
 104       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf">N2555</a></td>
 105       <td class="full" align="center">Clang 2.9</td>
 106     </tr>
 107     <tr>
 108       <td>Initializer lists</td>
 109       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2672.htm">N2672</a></td>
 110       <td class="full" align="center">Clang 3.1</td>
 111     </tr>
 112     <tr>
 113       <td>Static assertions</td>
 114       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html">N1720</a></td>
 115       <td class="full" align="center">Clang 2.9</td>
 116     </tr>
 117     <tr>
 118       <td><code>auto</code>-typed variables</td>
 119       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1984.pdf">N1984</a></td>
 120       <td class="full" align="center">Clang 2.9</td>
 121     </tr>
 122     <tr>
 123       <td>&nbsp;&nbsp;&nbsp;&nbsp;Multi-declarator <code>auto</code></td>
 124       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1737.pdf">N1737</a></td>
 125       <td class="full" align="center">Clang 2.9</td>
 126     </tr>
 127     <tr>
 128       <td>&nbsp;&nbsp;&nbsp;&nbsp;Removal of auto as a storage-class specifier</td>
 129       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2546.htm">N2546</a></td>
 130       <td class="full" align="center">Clang 2.9</td>
 131     </tr>
 132     <tr>
 133       <td>&nbsp;&nbsp;&nbsp;&nbsp;New function declarator syntax</td>
 134       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2541.htm">N2541</a></td>
 135       <td class="full" align="center">Clang 2.9</td>
 136     </tr>
 137     <tr>
 138       <td>Lambda expressions</td>
 139       <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2927.pdf">N2927</a></td>
 140       <td class="full" align="center">Clang 3.1</td>
 141     </tr>
 142     <tr>
 143       <td>Declared type of an expression</td>
 144       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2343.pdf">N2343</a></td>
 145       <td class="full" align="center">Clang 2.9</td>
 146     </tr>
 147     <tr>
 148       <td>&nbsp;&nbsp;&nbsp;&nbsp;Incomplete return types</td>
 149       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3276.pdf">N3276</a></td>
 150       <td class="full" align="center">Clang 3.1</td>
 151     </tr>
 152     <tr>
 153       <td>Right angle brackets</td>
 154       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html">N1757</a></td>
 155       <td class="full" align="center">Clang 2.9</td>
 156     </tr>
 157     <tr>
 158       <td>Default template arguments for function templates</td>
 159       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#226">DR226</a></td>
 160       <td class="full" align="center">Clang 2.9</td>
 161     </tr>
 162     <tr>
 163       <td>Solving the SFINAE problem for expressions</td>
 164       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2634.html">DR339</a></td>
 165       <td class="full" align="center">Clang 2.9</td>
 166     </tr>
 167     <tr>
 168       <td>Alias templates</td>
 169       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf">N2258</a></td>
 170       <td class="full" align="center">Clang 3.0</td>
 171     </tr>
 172     <tr>
 173       <td>Extern templates</td>
 174       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1987.htm">N1987</a></td>
 175       <td class="full" align="center">Clang 2.9</td>
 176     </tr>
 177     <tr>
 178       <td>Null pointer constant</td>
 179       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf">N2431</a></td>
 180       <td class="full" align="center">Clang 3.0</td>
 181     </tr>
 182     <tr>
 183       <td>Strongly-typed enums</td>
 184       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2347.pdf">N2347</a></td>
 185       <td class="full" align="center">Clang 2.9</td>
 186     </tr>
 187     <tr>
 188       <td>Forward declarations for enums</td>
 189       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2764.pdf">N2764</a>
 190       <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1206">DR1206</a></td>
 191       <td class="full" align="center">Clang 3.1</td>
 192     </tr>
 193     <tr>
 194       <td>Standardized attribute syntax</td>
 195       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf">N2761</a></td>
 196       <td class="full" align="center">Clang 3.3 <a href="#n2761">(1)</a></td>
 197     </tr>
 198     <tr>
 199       <td>Generalized constant expressions</td>
 200       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2235.pdf">N2235</a></td>
 201       <td class="full" align="center">Clang 3.1</td>
 202     </tr>
 203     <tr>
 204       <td>Alignment support</td>
 205       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2341.pdf">N2341</a></td>
 206       <td class="full" align="center">Clang 3.3</td>
 207     </tr>
 208     <!-- Skipped N1627: Conditionally-support behavior -->
 209     <!-- Skipped N1727: Changing Undefined Behavior into Diagnosable Errors -->
 210     <tr>
 211       <td>Delegating constructors</td>
 212       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1986.pdf">N1986</a></td>
 213       <td class="full" align="center">Clang 3.0</td>
 214     </tr>
 215     <tr>
 216       <td>Inheriting constructors</td>
 217       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2540.htm">N2540</a></td>
 218       <td class="full" align="center">Clang 3.3</td>
 219     </tr>
 220     <tr>
 221       <td>Explicit conversion operators</td>
 222       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf">N2437</a></td>
 223       <td class="full" align="center">Clang 3.0</td>
 224     </tr>
 225     <tr>
 226       <td>New character types</td>
 227       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2249.html">N2249</a></td>
 228       <td class="full" align="center">Clang 2.9</td>
 229     </tr>
 230     <tr>
 231       <td>Unicode string literals</td>
 232       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td>
 233       <td class="full" align="center">Clang 3.0</td>
 234     </tr>
 235     <tr>
 236       <td>Raw string literals</td>
 237       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td>
 238       <td class="full" align="center">Clang 3.0</td>
 239     </tr>
 240     <tr>
 241       <td>Universal character names in literals</td>
 242       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2170.html">N2170</a></td>
 243       <td class="full" align="center">Clang 3.1</td>
 244     </tr>
 245     <tr>
 246       <td>User-defined literals</td>
 247       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2765.pdf">N2765</a></td>
 248       <td class="full" align="center">Clang 3.1</td>
 249     </tr>
 250     <tr>
 251       <td>Standard Layout Types</td>
 252       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2342.htm">N2342</a></td>
 253       <td class="full" align="center">Clang 3.0</td>
 254     </tr>
 255     <tr>
 256       <td>Defaulted functions</td>
 257       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
 258       <td class="full" align="center">Clang 3.0</td>
 259     </tr>
 260     <tr>
 261       <td>Deleted functions</td>
 262       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
 263       <td class="full" align="center">Clang 2.9</td>
 264     </tr>
 265     <tr>
 266       <td>Extended friend declarations</td>
 267       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1791.pdf">N1791</a></td>
 268       <td class="full" align="center">Clang 2.9</td>
 269     </tr>
 270     <tr>
 271       <td>Extending <code>sizeof</code></td>
 272       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2253.html">N2253</a>
 273       <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#850">DR850</a></td>
 274       <td class="full" align="center">Clang 3.1</td>
 275     </tr>
 276     <tr>
 277       <td>Inline namespaces</td>
 278       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2535.htm">N2535</a></td>
 279       <td class="full" align="center">Clang 2.9</td>
 280     </tr>
 281     <tr>
 282       <td>Unrestricted unions</td>
 283       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2544.pdf">N2544</a></td>
 284       <td class="full" align="center">Clang 3.1</td>
 285     </tr>
 286     <tr>
 287       <td>Local and unnamed types as template arguments</td>
 288       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">N2657</a></td>
 289       <td class="full" align="center">Clang 2.9</td>
 290     </tr>
 291     <tr>
 292       <td>Range-based for</td>
 293       <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html">N2930</a></td>
 294       <td class="full" align="center">Clang 3.0</td>
 295     </tr>
 296     <tr>
 297       <td>Explicit virtual overrides</td>
 298       <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">N2928</a>
 299       <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">N3206</a>
 300       <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">N3272</a></td>
 301       <td class="full" align="center">Clang 3.0</td>
 302     </tr>
 303     <tr>
 304       <td>Minimal support for garbage collection and reachability-based leak detection</td>
 305       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2670.htm">N2670</a></td>
 306       <td class="na" align="center">N/A</td>
 307     </tr>
 308     <tr>
 309       <td>Allowing move constructors to throw [noexcept]</td>
 310       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3050.html">N3050</a></td>
 311       <td class="full" align="center">Clang 3.0</td>
 312     </tr>
 313     <tr>
 314       <td>Defining move special member functions</td>
 315       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3053.html">N3053</a></td>
 316       <td class="full" align="center">Clang 3.0</td>
 317     </tr>
 318
 319     <tr class="separator">
 320       <th align="center" colspan="3">Concurrency</th>
 321     </tr>
 322     <tr>
 323       <td>Sequence points</td>
 324       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2239.html">N2239</a></td>
 325       <td class="full" align="center">Clang 3.3</td>
 326     </tr>
 327     <tr>
 328       <td>Atomic operations</td>
 329       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html">N2427</a></td>
 330       <td class="full" align="center">Clang 3.1</td>
 331     </tr>
 332     <tr>
 333       <td>Strong Compare and Exchange</td>
 334       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2748.html">N2748</a></td>
 335       <td class="full" align="center">Clang 3.1 <a href="#n2748">(2)</a></td>
 336     </tr>
 337     <tr>
 338       <td>Bidirectional Fences</td>
 339       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2752.htm">N2752</a></td>
 340       <td class="full" align="center">Clang 3.1</td>
 341     </tr>
 342
 343     <tr>
 344       <td>Memory model</td>
 345       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2429.htm">N2429</a></td>
 346       <td class="full" align="center">Clang 3.2</td>
 347     </tr>
 348     <tr>
 349       <td>Data-dependency ordering: atomics and memory model</td>
 350       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2664.htm">N2664</a></td>
 351       <td class="full" align="center">Clang 3.2 <a href="#n2664">(3)</a></td>
 352     </tr>
 353     <tr>
 354       <td>Propagating exceptions</td>
 355       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html">N2179</a></td>
 356       <td class="full" align="center">Clang 2.9</td>
 357     </tr>
 358     <tr>
 359       <td>Abandoning a process and at_quick_exit</td>
 360       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2440.htm">N2440</a></td>
 361       <td class="na" align="center">N/A</td>
 362     </tr>
 363     <tr>
 364       <td>Allow atomics use in signal handlers</td>
 365       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2547.htm">N2547</a></td>
 366       <td class="full" align="center">Clang 3.1</td>
 367     </tr>
 368     <tr>
 369       <td>Thread-local storage</td>
 370       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2659.htm">N2659</a></td>
 371       <td class="full" align="center">Clang 3.3</td>
 372     </tr>
 373     <tr>
 374       <td>Dynamic initialization and destruction with concurrency</td>
 375       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2660.htm">N2660</a></td>
 376       <td class="full" align="center">Clang 2.9</td>
 377     </tr>
 378
 379     <tr class="separator">
 380       <th align="center" colspan="3">C99 Features in C++11</th>
 381     </tr>
 382     <tr>
 383       <td><code>__func__</code> predefined identifier</td>
 384       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2340.htm">N2340</a></td>
 385       <td class="full" align="center">Clang 2.9</td>
 386     </tr>
 387     <tr>
 388       <td>C99 preprocessor</td>
 389       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1653.htm">N1653</a></td>
 390       <td class="full" align="center">Clang 2.9</td>
 391     </tr>
 392     <tr>
 393       <td><code>long long</code></td>
 394       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1811.pdf">N1811</a></td>
 395       <td class="full" align="center">Clang 2.9</td>
 396     </tr>
 397     <tr>
 398       <td>Extended integral types</td>
 399       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1988.pdf">N1988</a></td>
 400       <td class="na" align="center">N/A <a href="#n1988">(4)</a></td>
 401     </tr>
 402 </table>
 403
 404 <p>
 405 <span id="n2761">(1): The <code>[[carries_dependency]]</code> attribute
 406 has no effect.</span><br>
 407 <span id="n2748">(2): All compare-exchange operations are emitted as
 408 strong compare-exchanges.</span><br>
 409 <span id="n2664">(3): <code>memory_order_consume</code> is lowered to
 410 <code>memory_order_acquire</code>.</span><br>
 411 <span id="n1988">(4): <code>__int128</code> is not treated as an extended
 412 integer type, because changing <code>intmax_t</code> would be an
 413 ABI-incompatible change.</span>
 414 </p>
 415
 416 <h2 id="cxx14">C++1y implementation status</h2>
 417
 418 <p>Clang implements all of the
 419 <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3797.pdf">current draft</a>
 420 of the upcoming C++ language standard, provisionally named C++1y.  The following
 421 table describes the Clang version in which each feature became available.</p>
 422
 423 <p>You can use Clang in C++1y mode with the <code>-std=c++1y</code> option.</p>
 424
 425 <table width="689" border="1" cellspacing="0">
 426  <tr>
 427     <th>Language Feature</th>
 428     <th>C++1y Proposal</th>
 429     <th>Available in Clang?</th>
 430  </tr>
 431     <tr>
 432       <td>Tweak to certain C++ contextual conversions</td>
 433       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3323.pdf">N3323</a></td>
 434       <td class="full" align="center">Clang 3.4</td>
 435     </tr>
 436     <tr>
 437       <td>Binary literals</td>
 438       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf">N3472</a></td>
 439       <td class="full" align="center">Yes</td>
 440     </tr>
 441     <tr>
 442       <td>decltype(auto)</td>
 443       <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>
 444       <td class="full" align="center">Clang 3.3</td>
 445     </tr>
 446     <tr>
 447       <td>Return type deduction for normal functions</td>
 448       <td class="full" align="center">Clang 3.4</td>
 449     </tr>
 450     <tr>
 451       <td>Initialized lambda captures</td>
 452       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3648.html">N3648</a></td>
 453       <td class="full" align="center">Clang 3.4</td>
 454     </tr>
 455     <tr>
 456       <td>Generic lambdas</td>
 457       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3649.html">N3649</a></td>
 458       <td class="full" align="center">Clang 3.4</td>
 459     </tr>
 460     <tr>
 461       <td>Variable templates</td>
 462       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3651.pdf">N3651</a></td>
 463       <td class="full" align="center">Clang 3.4</td>
 464     </tr>
 465     <tr>
 466       <td>Relaxing requirements on constexpr functions</td>
 467       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3652.html">N3652</a></td>
 468       <td class="full" align="center">Clang 3.4</td>
 469     </tr>
 470     <tr>
 471       <td>Member initializers and aggregates</td>
 472       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html">N3653</a></td>
 473       <td class="full" align="center">Clang 3.3</td>
 474     </tr>
 475     <tr>
 476       <td>Clarifying memory allocation</td>
 477       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3664.html">N3664</a></td>
 478       <td class="full" align="center">Clang 3.4</td>
 479     </tr>
 480     <tr>
 481       <td><tt>[[deprecated]]</tt> attribute</td>
 482       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3760.html">N3760</a></td>
 483       <td class="full" align="center">Clang 3.4</td>
 484     </tr>
 485     <tr>
 486       <td>Single quotation mark as digit separator</td>
 487       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3781.pdf">N3781</a></td>
 488       <td class="full" align="center">Clang 3.4</td>
 489     </tr>
 490     <tr>
 491       <td>C++ Sized Deallocation</td>
 492       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3778.html">N3778</a></td>
 493       <td class="full" align="center">Clang 3.4</td>
 494     </tr>
 495 </table>
 496
 497 <!--
 498 <h2 id="cxx17">C++1z implementation status</h2>
 499
 500 <p>Clang implements none of the upcoming C++ language standard,
 501 provisionally named C++1z.  The following table describes which C++1z features
 502 have been implemented in Clang and in which Clang version they became
 503 available.</p>
 504
 505 <p>You can use Clang in C++1z mode with the <code>-std=c++1z</code> option.</p>
 506 -->
 507
 508 <h2 id="ts">Technical specifications and standing documents</h2>
 509
 510 <p>ISO C++ also publishes a number of documents describing additional language
 511 and library features that are not part of standard C++. The following table
 512 describes which language features have been implemented in Clang and in which
 513 Clang version they became available:</p>
 514
 515 <table width="689" border="1" cellspacing="0">
 516  <tr>
 517     <th>Document</th>
 518     <th>Latest draft</th>
 519     <th>Available in Clang?</th>
 520  </tr>
 521     <tr>
 522       <td>SD-6: SG10 feature test recommendations</td>
 523       <td><a href="http://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations">SD-6</a></td>
 524       <td class="full" align="center">Clang 3.4 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3745">N3745</a>)</td>
 525     </tr>
 526     <tr>
 527       <td>[DRAFT TS] Array extensions (arrays of runtime bound)</td>
 528       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3820.html">N3820</a></td>
 529       <td class="none" align="center">No</td>
 530     </tr>
 531     <tr>
 532       <td>[DRAFT TS] Library fundamentals (invocation type traits)</td>
 533       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3908.html">N3908</a></td>
 534       <td class="none" align="center">No</td>
 535     </tr>
 536     <tr>
 537       <td>[DRAFT TS] Concepts</td>
 538       <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3929.pdf">N3929</a></td>
 539       <td class="none" align="center">No</td>
 540     </tr>
 541 </table>
 542
 543 </div>
 544 </body>
 545 </html>