<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Clang - C++98 and C++11 Status</title> <link type="text/css" rel="stylesheet" href="menu.css"> <link type="text/css" rel="stylesheet" href="content.css"> <style type="text/css"> .none { background-color: #FFCCCC } .svn { background-color: #FFFF99 } .full { background-color: #CCFF99 } th { background-color: #FFDDAA } </style> </head> <body> <!--#include virtual="menu.html.incl"--> <div id="content"> <!--*************************************************************************--> <h1>C++98 and C++11 Support in Clang</h1> <!--*************************************************************************--> <p>Last updated: $Date: 2012-03-03 15:51:05 -0800 (Sat, 03 Mar 2012) $</p> <h2 id="cxx98">C++98 implementation status</h2> <p>Clang currently implements all of the ISO C++ 1998 standard (including the defects addressed in the ISO C++ 2003 standard) except for 'export' (which has been removed in C++11) and is considered a production-quality C++ compiler. The <a href="http://llvm.org/bugs/">LLVM bug tracker</a> contains a Clang C++ component that tracks known Clang C++ bugs.</p> <h2 id="cxx11">C++11 implementation status</h2> <p>Clang provides support for a number of features included in the new <a href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=50372">ISO C++ Standard, ISO/IEC 14882:2011</a>. The following table describes which C++11 features have been implemented in Clang and in which Clang versions they became available.</p> <p>You can use Clang in C++11 mode either with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++. libstdc++-4.4 requires <a href="libstdc++4.4-clang0x.patch">a patch</a> to work with clang; other versions have not been tested.</p> <table width="689" border="1" cellspacing="0"> <tr> <th>Language Feature</th> <th>C++11 Proposal</th> <th>Available in Clang?</th> </tr> <tr> <td>Rvalue references</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html">N2118</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td> Rvalue references for <code>*this</code></td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2439.htm">N2439</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Initialization of class objects by rvalues</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1610.html">N1610</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Non-static data member initializers</td> <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2008/n2756.htm">N2756</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Variadic templates</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2242.pdf">N2242</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td> Extending variadic template template parameters</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf">N2555</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Initializer lists</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2672.htm">N2672</a></td> <td class="svn" align="center">SVN</td> </tr> <tr> <td>Static assertions</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html">N1720</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td><code>auto</code>-typed variables</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1984.pdf">N1984</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td> Multi-declarator <code>auto</code></td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1737.pdf">N1737</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td> Removal of auto as a storage-class specifier</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2546.htm">N2546</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td> New function declarator syntax</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2541.htm">N2541</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Lambda expressions</td> <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2927.pdf">N2927</a></td> <td class="svn" align="center">SVN</td> </tr> <tr> <td>Declared type of an expression</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2343.pdf">N2343</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Right angle brackets</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html">N1757</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Default template arguments for function templates</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#226">DR226</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Solving the SFINAE problem for expressions</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2634.html">DR339</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Alias templates</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf">N2258</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Extern templates</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1987.htm">N1987</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Null pointer constant</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf">N2431</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Strongly-typed enums</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2347.pdf">N2347</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Forward declarations for enums</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2764.pdf">N2764</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Generalized attributes</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf">N2761</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Generalized constant expressions</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2235.pdf">N2235</a></td> <td class="svn" align="center">SVN</td> </tr> <tr> <td>Alignment support</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2341.pdf">N2341</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <!-- Skipped N1627: Conditionally-support behavior --> <!-- Skipped N1727: Changing Undefined Behavior into Diagnosable Errors --> <tr> <td>Delegating constructors</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1986.pdf">N1986</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Inheriting constructors</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2540.htm">N2540</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Explicit conversion operators</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf">N2437</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>New character types</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2249.html">N2249</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Unicode string literals</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Raw string literals</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2442.htm">N2442</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Universal character name literals</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2170.html">N2170</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>User-defined literals</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2765.pdf">N2765</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Standard Layout Types</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2342.htm">N2342</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Defaulted functions</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Deleted functions</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Extended friend declarations</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1791.pdf">N1791</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Extending <code>sizeof</code></td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2253.html">N2253</a> <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#850">DR850</a></td> <td class="svn" align="center">SVN</td> </tr> <tr> <td>Inline namespaces</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2535.htm">N2535</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Unrestricted unions</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2544.pdf">N2544</a></td> <td class="svn" align="center">SVN</td> </tr> <tr> <td>Local and unnamed types as template arguments</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm">N2657</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Range-based for</td> <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2930.html">N2930</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Explicit virtual overrides</td> <td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2928.htm">N2928</a> <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3206.htm">N3206</a> <br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3272.htm">N3272</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Minimal support for garbage collection and reachability-based leak detection</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2670.htm">N2670</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Allowing move constructors to throw [noexcept]</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3050.html">N3050</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr> <td>Defining move special member functions</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3053.html">N3053</a></td> <td class="full" align="center">Clang 3.0</td> </tr> <tr class="separator"> <th align="center" colspan="3">Concurrency</th> </tr> <tr> <td>Sequence points</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2239.html">N2239</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Atomic operations</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html">N2427</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Strong Compare and Exchange</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2748.html">N2748</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Bidirectional Fences</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2752.htm">N2752</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Memory model</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2429.htm">N2429</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Data-dependency ordering: atomics and memory model</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2664.htm">N2664</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Propagating exceptions</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2179.html">N2179</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Abandoning a process and at_quick_exit</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2440.htm">N2440</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Allow atomics use in signal handlers</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2547.htm">N2547</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Thread-local storage</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2659.htm">N2659</a></td> <td class="none" align="center">No</td> </tr> <tr> <td>Dynamic initialization and destruction with concurrency</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2660.htm">N2660</a></td> <td class="none" align="center">No</td> </tr> <tr class="separator"> <th align="center" colspan="3">C99 Features in C++11</th> </tr> <tr> <td><code>__func__</code> predefined identifier</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2340.htm">N2340</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>C99 preprocessor</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1653.htm">N1653</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td><code>long long</code></td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1811.pdf">N1811</a></td> <td class="full" align="center">Clang 2.9</td> </tr> <tr> <td>Extended integral types</td> <td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1988.pdf">N1988</a></td> <td class="none" align="center">No</td> </tr> </table> </div> </body> 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