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2009-02-25 23:22:45 +08:00
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2014-06-21 04:33:10 +08:00
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2009-02-25 23:22:45 +08:00
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<!--*************************************************************************-->
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2014-06-21 04:33:10 +08:00
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<h1>C++ Support in Clang</h1>
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2009-02-15 04:20:19 +08:00
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<!--*************************************************************************-->
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2009-06-28 03:33:58 +08:00
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<p>Last updated: $Date$</p>
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2009-02-15 04:20:19 +08:00
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2016-09-29 03:22:36 +08:00
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<p>Clang fully implements all published ISO C++ standards (<a
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href="#cxx98">C++98 / C++03</a>, <a
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href="#cxx11">C++11</a>, and <a
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href="#cxx14">C++14</a>), and most of the upcoming <a
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href="#cxx17">C++1z</a> standard.
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2013-12-06 14:35:49 +08:00
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2013-12-09 16:52:23 +08:00
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<p>The Clang community is continually striving to improve C++ standards
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2013-12-06 14:35:49 +08:00
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compliance between releases by submitting and tracking <a
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href="cxx_dr_status.html">C++ Defect Reports</a> and implementing resolutions
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as they become available.</p>
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<p>Experimental work is also under way to implement <a href="#ts">C++ Technical
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Specifications</a> that will help drive the future of the C++ programming
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language.</p>
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2013-12-09 16:52:23 +08:00
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<p>The <a href="http://llvm.org/bugs/">LLVM bug tracker</a> contains Clang
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C++ components that track known bugs with Clang's language conformance in
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each language mode.</p>
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2012-02-25 02:42:08 +08:00
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<h2 id="cxx98">C++98 implementation status</h2>
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2013-12-06 14:35:49 +08:00
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<p>Clang implements all of the ISO C++ 1998 standard
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2011-07-22 01:46:15 +08:00
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(including the defects addressed in the ISO C++ 2003 standard)
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2014-06-23 00:00:05 +08:00
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except for <tt>export</tt> (which was removed in C++11).
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2010-02-06 07:51:14 +08:00
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2012-02-25 02:42:08 +08:00
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<h2 id="cxx11">C++11 implementation status</h2>
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2010-05-22 04:59:40 +08:00
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2014-06-23 00:00:05 +08:00
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<p>Clang 3.3 and later implement all of the <a
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2016-09-29 03:22:36 +08:00
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href="http://www.iso.org/iso/catalogue_detail.htm?csnumber=50372">ISO
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2013-04-20 01:00:31 +08:00
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C++ 2011 standard</a>. The following table describes the Clang version
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in which each feature became available.</p>
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2010-05-22 04:59:40 +08:00
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2013-03-10 08:11:00 +08:00
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<p>By default, Clang builds C++ code according to the C++98 standard, with many
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C++11 features accepted as extensions. You can use Clang in C++11 mode with the
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<code>-std=c++11</code> option. Clang's C++11 mode can be used
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2016-09-29 03:22:36 +08:00
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with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++.
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2011-03-30 06:27:50 +08:00
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2009-02-15 04:20:19 +08:00
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<table width="689" border="1" cellspacing="0">
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<tr>
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2011-11-05 18:11:36 +08:00
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<th>Language Feature</th>
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2012-02-25 02:42:08 +08:00
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<th>C++11 Proposal</th>
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2011-11-05 18:11:36 +08:00
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<th>Available in Clang?</th>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Rvalue references</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html">N2118</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td> Rvalue references for <code>*this</code></td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2439.htm">N2439</a></td>
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2011-11-05 18:11:36 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Initialization of class objects by rvalues</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1610.html">N1610</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Non-static data member initializers</td>
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<td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2008/n2756.htm">N2756</a></td>
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2011-11-05 18:11:36 +08:00
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<td class="full" align="center">Clang 3.0</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Variadic templates</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2242.pdf">N2242</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td> Extending variadic template template parameters</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2555.pdf">N2555</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Initializer lists</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2672.htm">N2672</a></td>
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2012-05-23 09:38:11 +08:00
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<td class="full" align="center">Clang 3.1</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Static assertions</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.html">N1720</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td><code>auto</code>-typed variables</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1984.pdf">N1984</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td> Multi-declarator <code>auto</code></td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1737.pdf">N1737</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td> Removal of auto as a storage-class specifier</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2546.htm">N2546</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td> New function declarator syntax</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2541.htm">N2541</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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2012-02-23 11:02:32 +08:00
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<td>Lambda expressions</td>
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2011-10-15 07:21:49 +08:00
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<td><a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2927.pdf">N2927</a></td>
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2012-05-23 09:38:11 +08:00
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<td class="full" align="center">Clang 3.1</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Declared type of an expression</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2343.pdf">N2343</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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2012-04-11 04:00:33 +08:00
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<tr>
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<td> Incomplete return types</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3276.pdf">N3276</a></td>
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2012-05-23 09:38:11 +08:00
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<td class="full" align="center">Clang 3.1</td>
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2012-04-11 04:00:33 +08:00
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</tr>
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2011-10-15 07:21:49 +08:00
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<tr>
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<td>Right angle brackets</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html">N1757</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Default template arguments for function templates</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#226">DR226</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Solving the SFINAE problem for expressions</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2634.html">DR339</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Alias templates</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2258.pdf">N2258</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 3.0</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Extern templates</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1987.htm">N1987</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Null pointer constant</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf">N2431</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 3.0</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Strongly-typed enums</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2347.pdf">N2347</a></td>
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2011-11-02 14:29:37 +08:00
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<td class="full" align="center">Clang 2.9</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Forward declarations for enums</td>
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2012-03-15 07:13:10 +08:00
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2764.pdf">N2764</a>
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<br><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/cwg_defects.html#1206">DR1206</a></td>
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2012-05-23 09:38:11 +08:00
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<td class="full" align="center">Clang 3.1</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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2014-01-17 08:11:48 +08:00
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<td>Standardized attribute syntax</td>
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2011-10-15 07:21:49 +08:00
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2761.pdf">N2761</a></td>
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2013-06-18 07:54:23 +08:00
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<td class="full" align="center">Clang 3.3 <a href="#n2761">(1)</a></td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Generalized constant expressions</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2235.pdf">N2235</a></td>
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2012-05-23 09:38:11 +08:00
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<td class="full" align="center">Clang 3.1</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Alignment support</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2341.pdf">N2341</a></td>
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2013-06-18 07:54:23 +08:00
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<td class="full" align="center">Clang 3.3</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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2014-03-15 05:21:24 +08:00
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<tr>
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<td>Conditionally-support behavior</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1627.pdf">N1627</a></td>
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<td class="full" align="center">Clang 2.9</td>
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</tr>
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<tr>
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<td>Changing undefined behavior into diagnosable errors</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1727.pdf">N1727</a></td>
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<td class="full" align="center">Clang 2.9</td>
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</tr>
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2011-10-15 07:21:49 +08:00
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<tr>
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<td>Delegating constructors</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n1986.pdf">N1986</a></td>
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2011-11-05 18:11:36 +08:00
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<td class="full" align="center">Clang 3.0</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Inheriting constructors</td>
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<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2540.htm">N2540</a></td>
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2013-06-18 07:54:23 +08:00
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<td class="full" align="center">Clang 3.3</td>
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2011-10-15 07:21:49 +08:00
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</tr>
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<tr>
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<td>Explicit conversion operators</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf">N2437</a></td>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2012-03-10 06:27:51 +08:00
|
|
|
<td>Universal character names in literals</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2170.html">N2170</a></td>
|
2012-05-23 09:38:11 +08:00
|
|
|
<td class="full" align="center">Clang 3.1</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2012-05-23 09:38:11 +08:00
|
|
|
<td class="full" align="center">Clang 3.1</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2011-10-29 03:44:09 +08:00
|
|
|
<td>Defaulted functions</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-29 03:44:09 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Deleted functions</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a></td>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Extending <code>sizeof</code></td>
|
2012-02-25 02:37:14 +08:00
|
|
|
<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>
|
2012-05-23 09:38:11 +08:00
|
|
|
<td class="full" align="center">Clang 3.1</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2012-05-23 09:38:11 +08:00
|
|
|
<td class="full" align="center">Clang 3.1</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2012-02-25 02:37:14 +08:00
|
|
|
<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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2014-03-15 04:26:09 +08:00
|
|
|
<td class="na" align="center">N/A <a href="#n2670">(2)</a></td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Allowing move constructors to throw [noexcept]</td>
|
2011-11-02 23:13:40 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3050.html">N3050</a></td>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Defining move special member functions</td>
|
2011-11-02 23:13:40 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3053.html">N3053</a></td>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 3.0</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
2010-12-21 13:43:31 +08:00
|
|
|
|
2011-10-15 07:21:49 +08:00
|
|
|
<tr class="separator">
|
2011-11-05 18:11:36 +08:00
|
|
|
<th align="center" colspan="3">Concurrency</th>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2013-06-18 07:54:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.3</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2012-05-23 09:38:11 +08:00
|
|
|
<td class="full" align="center">Clang 3.1</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2014-03-15 04:26:09 +08:00
|
|
|
<td class="full" align="center">Clang 3.1 <a href="#n2748">(3)</a></td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2012-05-23 09:38:11 +08:00
|
|
|
<td class="full" align="center">Clang 3.1</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
2009-02-15 04:20:19 +08:00
|
|
|
|
2011-10-15 07:21:49 +08:00
|
|
|
<tr>
|
|
|
|
<td>Memory model</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2429.htm">N2429</a></td>
|
2013-01-29 12:55:18 +08:00
|
|
|
<td class="full" align="center">Clang 3.2</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2014-03-15 04:26:09 +08:00
|
|
|
<td class="full" align="center">Clang 3.2 <a href="#n2664">(4)</a></td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2012-05-23 09:38:11 +08:00
|
|
|
<td class="full" align="center">Clang 3.1</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2016-02-10 06:48:14 +08:00
|
|
|
<td class="full" align="center">Clang 3.3 <a href="#n2659">(5)</a></td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2013-02-22 17:31:00 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
2010-02-06 07:51:14 +08:00
|
|
|
|
2011-10-15 07:21:49 +08:00
|
|
|
<tr class="separator">
|
2012-02-25 02:42:08 +08:00
|
|
|
<th align="center" colspan="3">C99 Features in C++11</th>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2011-11-02 14:29:37 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</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>
|
2016-02-10 06:48:14 +08:00
|
|
|
<td class="na" align="center">N/A <a href="#n1988">(6)</a></td>
|
2011-10-15 07:21:49 +08:00
|
|
|
</tr>
|
2009-02-15 04:20:19 +08:00
|
|
|
</table>
|
2013-03-13 03:56:09 +08:00
|
|
|
|
|
|
|
<p>
|
|
|
|
<span id="n2761">(1): The <code>[[carries_dependency]]</code> attribute
|
2013-03-19 05:57:52 +08:00
|
|
|
has no effect.</span><br>
|
2014-03-15 04:26:09 +08:00
|
|
|
<span id="n2670">(2): No compiler changes are required for an implementation
|
|
|
|
such as Clang that does not provide garbage collection.</span><br>
|
|
|
|
<span id="n2748">(3): All compare-exchange operations are emitted as
|
2013-03-19 05:57:52 +08:00
|
|
|
strong compare-exchanges.</span><br>
|
2014-03-15 04:26:09 +08:00
|
|
|
<span id="n2664">(4): <code>memory_order_consume</code> is lowered to
|
2013-03-19 05:57:52 +08:00
|
|
|
<code>memory_order_acquire</code>.</span><br>
|
2016-02-10 06:48:14 +08:00
|
|
|
<span id="n2659">(5): <code>thread_local</code> support
|
|
|
|
requires a C++ runtime library providing <code>__cxa_thread_atexit</code>, such
|
|
|
|
as <a href="http://libcxxabi.llvm.org">libc++abi</a> 3.6 or later,
|
|
|
|
or libsupc++ 4.8 or later.</span><br>
|
|
|
|
<span id="n1988">(6): No compiler changes are required for an implementation
|
2014-03-15 04:26:09 +08:00
|
|
|
such as Clang that does not provide any extended integer types.
|
|
|
|
<code>__int128</code> is not treated as an extended integer type,
|
|
|
|
because changing <code>intmax_t</code> would be an ABI-incompatible
|
|
|
|
change.</span>
|
2013-03-13 03:56:09 +08:00
|
|
|
</p>
|
|
|
|
|
2014-08-31 12:17:48 +08:00
|
|
|
<h2 id="cxx14">C++14 implementation status</h2>
|
2013-04-20 01:27:48 +08:00
|
|
|
|
2016-09-29 03:22:36 +08:00
|
|
|
<p>Clang 3.4 and later implement all of the <a
|
|
|
|
href="http://www.iso.org/iso/catalogue_detail.htm?csnumber=64029">ISO
|
|
|
|
C++ 2014 standard</a>. The following table describes the
|
2014-08-31 12:17:48 +08:00
|
|
|
Clang version in which each feature became available.</p>
|
2013-04-20 01:27:48 +08:00
|
|
|
|
2014-08-31 12:17:48 +08:00
|
|
|
<p>You can use Clang in C++14 mode with the <code>-std=c++14</code> option
|
2014-08-31 12:18:54 +08:00
|
|
|
(use <code>-std=c++1y</code> in Clang 3.4 and earlier).</p>
|
2013-04-20 21:22:50 +08:00
|
|
|
|
2013-04-20 01:27:48 +08:00
|
|
|
<table width="689" border="1" cellspacing="0">
|
|
|
|
<tr>
|
|
|
|
<th>Language Feature</th>
|
2014-08-31 12:17:48 +08:00
|
|
|
<th>C++14 Proposal</th>
|
2013-04-20 01:27:48 +08:00
|
|
|
<th>Available in Clang?</th>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Tweak to certain C++ contextual conversions</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3323.pdf">N3323</a></td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2013-04-20 20:44:32 +08:00
|
|
|
<td>Binary literals</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf">N3472</a></td>
|
2015-02-09 19:48:43 +08:00
|
|
|
<td class="full" align="center">Clang 2.9</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
2013-04-27 00:15:35 +08:00
|
|
|
<tr>
|
|
|
|
<td>decltype(auto)</td>
|
2013-05-10 02:53:17 +08:00
|
|
|
<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>
|
2013-06-18 07:54:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.3</td>
|
2013-04-27 00:15:35 +08:00
|
|
|
</tr>
|
2013-04-20 20:44:32 +08:00
|
|
|
<tr>
|
2013-04-20 20:47:36 +08:00
|
|
|
<td>Return type deduction for normal functions</td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2013-04-20 20:47:36 +08:00
|
|
|
<td>Initialized lambda captures</td>
|
2013-05-10 02:53:17 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3648.html">N3648</a></td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2013-04-20 20:58:57 +08:00
|
|
|
<td>Generic lambdas</td>
|
2013-05-10 02:53:17 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3649.html">N3649</a></td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2013-04-20 20:58:57 +08:00
|
|
|
<td>Variable templates</td>
|
2013-05-10 02:53:17 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3651.pdf">N3651</a></td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2013-04-20 20:49:36 +08:00
|
|
|
<td>Relaxing requirements on constexpr functions</td>
|
2013-05-10 02:53:17 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3652.html">N3652</a></td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2013-04-20 20:47:36 +08:00
|
|
|
<td>Member initializers and aggregates</td>
|
2013-05-10 02:53:17 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3653.html">N3653</a></td>
|
2013-06-18 07:54:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.3</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2013-04-20 20:57:49 +08:00
|
|
|
<td>Clarifying memory allocation</td>
|
2013-05-10 02:53:17 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3664.html">N3664</a></td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-04-20 01:27:48 +08:00
|
|
|
</tr>
|
2013-09-28 03:11:33 +08:00
|
|
|
<tr>
|
|
|
|
<td><tt>[[deprecated]]</tt> attribute</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3760.html">N3760</a></td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-09-28 03:11:33 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Single quotation mark as digit separator</td>
|
2013-11-05 16:27:00 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3781.pdf">N3781</a></td>
|
2014-02-03 14:58:08 +08:00
|
|
|
<td class="full" align="center">Clang 3.4</td>
|
2013-09-28 03:11:33 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2013-09-28 03:35:09 +08:00
|
|
|
<td>C++ Sized Deallocation</td>
|
2013-11-05 16:27:00 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3778.html">N3778</a></td>
|
2016-02-10 06:48:14 +08:00
|
|
|
<td class="full" align="center">Clang 3.4 <a href="#n3778">(7)</a></td>
|
2013-09-28 03:11:33 +08:00
|
|
|
</tr>
|
2013-04-20 01:27:48 +08:00
|
|
|
</table>
|
2015-03-20 08:31:07 +08:00
|
|
|
|
2015-02-19 12:34:13 +08:00
|
|
|
<p>
|
2016-02-10 06:48:14 +08:00
|
|
|
<span id="n3778">(7): In Clang 3.7 and later, sized deallocation is only enabled
|
2015-03-20 08:31:07 +08:00
|
|
|
if the user passes the <code>-fsized-deallocation</code> flag. The user must
|
|
|
|
supply definitions of the sized deallocation functions, either by providing them
|
|
|
|
explicitly or by using a C++ standard library that does. <code>libstdc++</code>
|
|
|
|
added these functions in version 5.0, and <code>libc++</code> added them in
|
|
|
|
version 3.7.
|
2015-02-19 12:34:13 +08:00
|
|
|
</span>
|
|
|
|
</p>
|
2013-04-20 01:27:48 +08:00
|
|
|
|
2013-11-07 14:41:26 +08:00
|
|
|
<h2 id="cxx17">C++1z implementation status</h2>
|
|
|
|
|
2016-02-10 06:48:14 +08:00
|
|
|
<p>Clang has <b>experimental</b> support for some proposed features of
|
|
|
|
the C++ standard following C++14, provisionally named C++1z.
|
|
|
|
The following table describes which C++1z features
|
2013-11-07 14:41:26 +08:00
|
|
|
have been implemented in Clang and in which Clang version they became
|
|
|
|
available.</p>
|
|
|
|
|
2014-06-21 04:33:10 +08:00
|
|
|
<p>Note that support for these features may change or be removed without notice,
|
|
|
|
as the draft C++1z standard evolves.</p>
|
|
|
|
|
2013-11-07 14:41:26 +08:00
|
|
|
<p>You can use Clang in C++1z mode with the <code>-std=c++1z</code> option.</p>
|
2014-06-21 04:33:10 +08:00
|
|
|
|
|
|
|
<table width="689" border="1" cellspacing="0">
|
|
|
|
<tr>
|
|
|
|
<th>Language Feature</th>
|
|
|
|
<th>C++1z Proposal</th>
|
|
|
|
<th>Available in Clang?</th>
|
|
|
|
</tr>
|
2014-11-08 13:07:16 +08:00
|
|
|
<!-- Issaquah papers -->
|
2014-06-21 04:33:10 +08:00
|
|
|
<tr>
|
|
|
|
<td><tt>static_assert</tt> with no message</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3928.pdf">N3928</a></td>
|
2014-09-12 01:30:32 +08:00
|
|
|
<td class="full" align="center">Clang 3.5</td>
|
2014-06-21 04:33:10 +08:00
|
|
|
</tr>
|
2014-11-08 13:07:16 +08:00
|
|
|
<!-- Rapperswil papers -->
|
2014-06-21 04:33:10 +08:00
|
|
|
<tr>
|
|
|
|
<td>Disabling trigraph expansion by default</td>
|
2014-11-26 11:26:53 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4086.html">N4086</a></td>
|
2014-09-12 01:30:32 +08:00
|
|
|
<td class="full" align="center">Clang 3.5</td>
|
2014-06-21 04:33:10 +08:00
|
|
|
</tr>
|
2014-11-27 09:54:27 +08:00
|
|
|
<!--
|
2014-06-21 04:33:10 +08:00
|
|
|
<tr>
|
2014-11-27 09:54:27 +08:00
|
|
|
<td rowspan="2">Terse range-based for loops (removed from C++1z)</td>
|
|
|
|
<td rowspan="2"><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3994.htm">N3994</a></td>
|
|
|
|
<td class="none" align="center">Clang 3.5: Yes</td>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td class="svn" align="center">SVN: No</td>
|
2014-06-21 04:33:10 +08:00
|
|
|
</tr>
|
2014-11-27 09:54:27 +08:00
|
|
|
-->
|
2014-06-21 04:33:10 +08:00
|
|
|
<tr>
|
|
|
|
<td><tt>typename</tt> in a template template parameter</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4051.html">N4051</a></td>
|
2014-09-12 01:30:32 +08:00
|
|
|
<td class="full" align="center">Clang 3.5</td>
|
2014-06-21 04:33:10 +08:00
|
|
|
</tr>
|
2014-11-26 11:26:53 +08:00
|
|
|
<tr>
|
|
|
|
<td>New <tt>auto</tt> rules for direct-list-initialization
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3922.html">N3922</a></td>
|
2016-03-20 18:37:12 +08:00
|
|
|
<td class="full" align="center">Clang 3.8 <a href="#n3922">(8)</a></td>
|
2014-11-26 11:26:53 +08:00
|
|
|
</tr>
|
2014-11-08 13:07:16 +08:00
|
|
|
<!-- Urbana papers -->
|
|
|
|
<tr>
|
2016-03-05 05:01:14 +08:00
|
|
|
<td rowspan="2">Fold expressions</td>
|
2015-02-09 19:48:43 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4295.html">N4295</a></td>
|
2015-11-11 09:36:17 +08:00
|
|
|
<td class="full" align="center">Clang 3.6</td>
|
2014-11-08 14:08:42 +08:00
|
|
|
</tr>
|
2016-03-05 05:01:14 +08:00
|
|
|
<tr> <!-- from Jacksonville -->
|
|
|
|
<td><a href="http://wg21.link/p0036r0">P0036R0</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-03-05 05:01:14 +08:00
|
|
|
</tr>
|
2014-11-08 14:08:42 +08:00
|
|
|
<tr>
|
|
|
|
<td><tt>u8</tt> character literals</td>
|
2015-02-09 19:48:43 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4267.html">N4267</a></td>
|
2015-11-11 09:36:17 +08:00
|
|
|
<td class="full" align="center">Clang 3.6</td>
|
2014-11-08 13:07:16 +08:00
|
|
|
</tr>
|
2014-11-08 13:37:34 +08:00
|
|
|
<tr>
|
|
|
|
<td>Nested namespace definition</td>
|
2015-02-09 19:48:43 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4230.html">N4230</a></td>
|
2015-11-11 09:36:17 +08:00
|
|
|
<td class="full" align="center">Clang 3.6</td>
|
2014-11-08 13:37:34 +08:00
|
|
|
</tr>
|
2014-11-08 23:33:35 +08:00
|
|
|
<tr>
|
|
|
|
<td>Attributes for namespaces and enumerators</td>
|
2015-02-09 19:48:43 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4266.html">N4266</a></td>
|
2015-11-11 09:36:17 +08:00
|
|
|
<td class="full" align="center">Clang 3.6</td>
|
2014-11-08 23:33:35 +08:00
|
|
|
</tr>
|
2014-11-26 11:26:53 +08:00
|
|
|
<tr>
|
|
|
|
<td>Allow constant evaluation for all non-type template arguments</td>
|
2015-02-09 19:48:43 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4268.html">N4268</a></td>
|
2015-11-11 09:36:17 +08:00
|
|
|
<td class="full" align="center">Clang 3.6</td>
|
2014-11-26 11:26:53 +08:00
|
|
|
</tr>
|
2015-11-06 05:41:06 +08:00
|
|
|
<!-- Kona papers -->
|
|
|
|
<tr>
|
|
|
|
<td>Remove deprecated <tt>register</tt> storage class</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0001r1.html">P0001R1</a></td>
|
2016-03-20 18:37:12 +08:00
|
|
|
<td class="full" align="center">Clang 3.8</td>
|
2015-11-06 05:41:06 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Remove deprecated <tt>bool</tt> increment</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0002r1.html">P0002R1</a></td>
|
2016-03-20 18:37:12 +08:00
|
|
|
<td class="full" align="center">Clang 3.8</td>
|
2015-11-06 05:41:06 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Make exception specifications part of the type system</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0012r1.html">P0012R1</a></td>
|
2015-11-06 05:42:32 +08:00
|
|
|
<td class="none" align="center">No</td>
|
2015-11-06 05:41:06 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2015-11-26 10:16:37 +08:00
|
|
|
<td><tt>__has_include</tt> in preprocessor conditionals</td>
|
2015-11-06 05:41:06 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0061.html">P0061R1</a></td>
|
|
|
|
<td class="full" align="center">Yes</td>
|
|
|
|
</tr>
|
2016-02-10 06:48:14 +08:00
|
|
|
<tr>
|
|
|
|
<td>New specification for inheriting constructors (<a href="cxx_dr_status.html#1941">DR1941</a> et al)</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0136r1.html">P0136R1</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9 <a href="#p0136">(9)</a></td>
|
2016-02-10 06:48:14 +08:00
|
|
|
</tr>
|
2016-03-05 05:01:14 +08:00
|
|
|
<!-- Jacksonville papers -->
|
|
|
|
<tr>
|
|
|
|
<td><tt>[[fallthrough]]</tt> attribute</td>
|
|
|
|
<td><a href="http://wg21.link/p0188r1">P0188R1</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-03-05 05:01:14 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td><tt>[[nodiscard]]</tt> attribute</td>
|
|
|
|
<td><a href="http://wg21.link/p0189r1">P0189R1</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-03-05 05:01:14 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td><tt>[[maybe_unused]]</tt> attribute</td>
|
|
|
|
<td><a href="http://wg21.link/p0212r1">P0212R1</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-03-05 05:01:14 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Aggregate initialization of classes with base classes</td>
|
|
|
|
<td><a href="http://wg21.link/p0017r1">P0017R1</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-03-05 05:01:14 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td><tt>constexpr</tt> lambda expressions</td>
|
|
|
|
<td><a href="http://wg21.link/p0170r1">P0170R1</a></td>
|
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Differing <tt>begin</tt> and <tt>end</tt> types in range-based <tt>for</tt></td>
|
|
|
|
<td><a href="http://wg21.link/p0184r0">P0184R0</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-03-05 05:01:14 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Lambda capture of <tt>*this</tt></td>
|
|
|
|
<td><a href="http://wg21.link/p0018r3">P0018R3</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-03-05 05:01:14 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Direct-list-initialization of <tt>enum</tt>s</td>
|
|
|
|
<td><a href="http://wg21.link/p0138r2">P0138R2</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-03-05 05:01:14 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Hexadecimal floating-point literals</td>
|
|
|
|
<td><a href="http://wg21.link/p0245r1">P0245R1</a></td>
|
|
|
|
<td class="full" align="center">Yes</td>
|
|
|
|
</tr>
|
2016-06-24 03:16:49 +08:00
|
|
|
<!-- Oulu papers -->
|
2016-06-24 19:20:31 +08:00
|
|
|
<tr>
|
|
|
|
<td>Using attribute namespaces without repetition</td>
|
|
|
|
<td><a href="http://wg21.link/p0028r4">P0028R4</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-06-24 19:20:31 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Dynamic memory allocation for over-aligned data</td>
|
|
|
|
<td><a href="http://wg21.link/p0035r4">P0035R4</a></td>
|
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Template argument deduction for class templates</td>
|
|
|
|
<td><a href="http://wg21.link/p0091r3">P0091R3</a></td>
|
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
2016-06-24 20:21:30 +08:00
|
|
|
<td>Non-type template parameters with <tt>auto</tt> type</td>
|
2016-06-24 19:20:31 +08:00
|
|
|
<td><a href="http://wg21.link/p0127r2">P0127R2</a></td>
|
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Guaranteed copy elision</td>
|
|
|
|
<td><a href="http://wg21.link/p0135r1">P0135R1</a></td>
|
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
2016-07-14 08:14:59 +08:00
|
|
|
<td rowspan=2>Stricter expression evaluation order</td>
|
2016-06-24 19:20:31 +08:00
|
|
|
<td><a href="http://wg21.link/p0145r3">P0145R3</a></td>
|
2016-09-29 03:09:10 +08:00
|
|
|
<td class="svn" align="center" rowspan=2>SVN <a href="#p0145">(10)</a></td>
|
2016-07-14 08:14:59 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td><a href="http://wg21.link/p0400r0">P0400R0</a></td>
|
2016-06-24 19:20:31 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Requirement to ignore unknown attributes</td>
|
|
|
|
<td><a href="http://wg21.link/p0283r2">P0283R2</a></td>
|
|
|
|
<td class="full" align="center">Yes</td>
|
|
|
|
</tr>
|
2016-06-24 03:16:49 +08:00
|
|
|
<tr>
|
|
|
|
<td><tt>constexpr</tt> <em>if-statement</em>s</td>
|
|
|
|
<td><a href="http://wg21.link/p0292r2">P0292R2</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-06-24 03:16:49 +08:00
|
|
|
</tr>
|
2016-06-24 19:20:31 +08:00
|
|
|
<tr>
|
|
|
|
<td>Inline variables</td>
|
|
|
|
<td><a href="http://wg21.link/p0386r2">P0386R2</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-06-24 19:20:31 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
|
|
|
<td>Structured bindings</td>
|
|
|
|
<td><a href="http://wg21.link/p0217r3">P0217R3</a></td>
|
2016-08-15 10:37:43 +08:00
|
|
|
<td class="partial" align="center">Partial</td>
|
2016-06-24 19:20:31 +08:00
|
|
|
</tr>
|
|
|
|
<tr>
|
2016-06-24 22:23:32 +08:00
|
|
|
<td>Separate variable and condition for <tt>if</tt> and <tt>switch</tt></td>
|
2016-06-24 19:20:31 +08:00
|
|
|
<td><a href="http://wg21.link/p0305r1">P0305R1</a></td>
|
2016-08-15 10:47:23 +08:00
|
|
|
<td class="full" align="center">Clang 3.9</td>
|
2016-06-24 19:20:31 +08:00
|
|
|
</tr>
|
2014-06-21 04:33:10 +08:00
|
|
|
</table>
|
2013-11-07 14:41:26 +08:00
|
|
|
|
2015-11-11 09:36:17 +08:00
|
|
|
<p>
|
2016-02-10 06:48:14 +08:00
|
|
|
<span id="n3922">(8): This is a backwards-incompatible change that is applied to
|
2015-11-11 09:36:17 +08:00
|
|
|
all language versions that allow type deduction from <tt>auto</tt>
|
|
|
|
(per the request of the C++ committee).
|
|
|
|
In Clang 3.7, a warning is emitted for all cases that would change meaning.
|
2016-06-29 04:37:43 +08:00
|
|
|
</span><br>
|
P0136R1, DR1573, DR1645, DR1715, DR1736, DR1903, DR1941, DR1959, DR1991:
Replace inheriting constructors implementation with new approach, voted into
C++ last year as a DR against C++11.
Instead of synthesizing a set of derived class constructors for each inherited
base class constructor, we make the constructors of the base class visible to
constructor lookup in the derived class, using the normal rules for
using-declarations.
For constructors, UsingShadowDecl now has a ConstructorUsingShadowDecl derived
class that tracks the requisite additional information. We create shadow
constructors (not found by name lookup) in the derived class to model the
actual initialization, and have a new expression node,
CXXInheritedCtorInitExpr, to model the initialization of a base class from such
a constructor. (This initialization is special because it performs real perfect
forwarding of arguments.)
In cases where argument forwarding is not possible (for inalloca calls,
variadic calls, and calls with callee parameter cleanup), the shadow inheriting
constructor is not emitted and instead we directly emit the initialization code
into the caller of the inherited constructor.
Note that this new model is not perfectly compatible with the old model in some
corner cases. In particular:
* if B inherits a private constructor from A, and C uses that constructor to
construct a B, then we previously required that A befriends B and B
befriends C, but the new rules require A to befriend C directly, and
* if a derived class has its own constructors (and so its implicit default
constructor is suppressed), it may still inherit a default constructor from
a base class
llvm-svn: 274049
2016-06-29 03:03:57 +08:00
|
|
|
<span id="p0136">(9): This is the resolution to a Defect Report, so is applied
|
|
|
|
to all language versions supporting inheriting constructors.
|
2016-09-29 03:09:10 +08:00
|
|
|
</span><br>
|
|
|
|
<span id="p0145">(10): Under the MS ABI, this feature is not fully implementable,
|
|
|
|
because the calling convention requires that function parameters are destroyed
|
|
|
|
from left to right in the callee. In order to guarantee that destruction order
|
|
|
|
is reverse construction order, the operands of overloaded
|
|
|
|
<tt>operator<<</tt>, <tt>operator>></tt>, <tt>operator->*</tt>,
|
|
|
|
<tt>operator&&</tt>, <tt>operator||</tt>, and <tt>operator,</tt>
|
|
|
|
functions are evaluated right-to-left under the MS ABI when called using operator
|
|
|
|
syntax, not left-to-right as P0145R3 requires.
|
P0136R1, DR1573, DR1645, DR1715, DR1736, DR1903, DR1941, DR1959, DR1991:
Replace inheriting constructors implementation with new approach, voted into
C++ last year as a DR against C++11.
Instead of synthesizing a set of derived class constructors for each inherited
base class constructor, we make the constructors of the base class visible to
constructor lookup in the derived class, using the normal rules for
using-declarations.
For constructors, UsingShadowDecl now has a ConstructorUsingShadowDecl derived
class that tracks the requisite additional information. We create shadow
constructors (not found by name lookup) in the derived class to model the
actual initialization, and have a new expression node,
CXXInheritedCtorInitExpr, to model the initialization of a base class from such
a constructor. (This initialization is special because it performs real perfect
forwarding of arguments.)
In cases where argument forwarding is not possible (for inalloca calls,
variadic calls, and calls with callee parameter cleanup), the shadow inheriting
constructor is not emitted and instead we directly emit the initialization code
into the caller of the inherited constructor.
Note that this new model is not perfectly compatible with the old model in some
corner cases. In particular:
* if B inherits a private constructor from A, and C uses that constructor to
construct a B, then we previously required that A befriends B and B
befriends C, but the new rules require A to befriend C directly, and
* if a derived class has its own constructors (and so its implicit default
constructor is suppressed), it may still inherit a default constructor from
a base class
llvm-svn: 274049
2016-06-29 03:03:57 +08:00
|
|
|
</span>
|
2015-11-11 09:36:17 +08:00
|
|
|
</p>
|
|
|
|
|
2013-11-28 06:58:16 +08:00
|
|
|
<h2 id="ts">Technical specifications and standing documents</h2>
|
|
|
|
|
|
|
|
<p>ISO C++ also publishes a number of documents describing additional language
|
|
|
|
and library features that are not part of standard C++. The following table
|
|
|
|
describes which language features have been implemented in Clang and in which
|
|
|
|
Clang version they became available:</p>
|
|
|
|
|
|
|
|
<table width="689" border="1" cellspacing="0">
|
|
|
|
<tr>
|
|
|
|
<th>Document</th>
|
|
|
|
<th>Latest draft</th>
|
|
|
|
<th>Available in Clang?</th>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
2014-11-13 05:16:38 +08:00
|
|
|
<td rowspan="2">SD-6: SG10 feature test recommendations</td>
|
|
|
|
<td rowspan="2"><a href="http://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations">SD-6</a></td>
|
|
|
|
<td class="full" align="center">
|
|
|
|
Clang 3.4 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2013/n3745">N3745</a>)</br>
|
|
|
|
</td>
|
|
|
|
</tr>
|
|
|
|
<tr>
|
2015-11-11 09:36:17 +08:00
|
|
|
<td class="full" align="center">
|
2015-02-09 19:48:43 +08:00
|
|
|
Clang 3.6 (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4200">N4200</a>)</a>
|
2014-11-13 05:16:38 +08:00
|
|
|
</td>
|
2013-11-28 06:58:16 +08:00
|
|
|
</tr>
|
2016-09-29 03:44:50 +08:00
|
|
|
<tr>
|
|
|
|
<td class="svn" align="center">
|
|
|
|
SVN (<a href="http://wg21.link/p0096r2">P0096R2</a>)</a>
|
|
|
|
</td>
|
|
|
|
</tr>
|
2015-11-06 05:41:06 +08:00
|
|
|
<!-- FIXME: Implement latest recommendations.
|
|
|
|
<tr>
|
|
|
|
<td class="svn" align="center">
|
2016-09-29 03:44:50 +08:00
|
|
|
SVN (<a href="http://wg21.link/p0096r3">P0096R3</a>)</a>
|
2015-11-06 05:41:06 +08:00
|
|
|
</td>
|
|
|
|
</tr>
|
|
|
|
-->
|
|
|
|
<!-- No compiler support is known to be needed for:
|
|
|
|
* Concurrency TS
|
|
|
|
* Parallelism TS
|
|
|
|
* Ranges TS
|
|
|
|
* Networking TS
|
|
|
|
* File System TS
|
|
|
|
-->
|
|
|
|
<tr>
|
|
|
|
<td>[TS] Concepts</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0121r0.pdf">P0121R0</a></td>
|
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
2013-11-28 06:58:16 +08:00
|
|
|
<tr>
|
2015-11-06 05:41:06 +08:00
|
|
|
<td>[TS] Library Fundamentals, Version 1 (invocation type traits)</td>
|
2015-11-06 06:21:52 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html">N4480</a></td>
|
2013-11-28 06:58:16 +08:00
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
2014-02-15 08:29:00 +08:00
|
|
|
<tr>
|
2015-11-06 05:41:06 +08:00
|
|
|
<td>[DRAFT TS] Library Fundamentals, Version 2 (<tt>source_location</tt>)</td>
|
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4529.html">N4529</a></td>
|
2014-02-15 08:29:00 +08:00
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
2016-03-05 05:01:14 +08:00
|
|
|
<tr>
|
|
|
|
<td>[TS] Modules</td>
|
|
|
|
<td><a href="http://wg21.link/p0143r2">P0143R2</a></td>
|
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
2014-02-15 08:29:00 +08:00
|
|
|
<tr>
|
2015-11-06 05:41:06 +08:00
|
|
|
<td>[TS] Transactional Memory</td>
|
2015-11-26 10:23:21 +08:00
|
|
|
<td><a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4514.pdf">N4514</a></td>
|
2014-02-15 08:29:00 +08:00
|
|
|
<td class="none" align="center">No</td>
|
|
|
|
</tr>
|
2013-11-28 06:58:16 +08:00
|
|
|
</table>
|
|
|
|
|
2009-02-15 04:20:19 +08:00
|
|
|
</div>
|
|
|
|
</body>
|
|
|
|
</html>
|