2010-05-12 03:42:16 +08:00
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<title>"libc++" C++ Standard Library</title>
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<a href="http://llvm.org/">LLVM Home</a>
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<label>libc++ Info</label>
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<a href="/index.html">About</a>
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<div class="submenu">
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<label>Quick Links</label>
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<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">llvmdev</a>
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<a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits">llvm-commits</a>
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<a href="http://llvm.org/bugs/">Bug Reports</a>
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2010-05-12 04:51:20 +08:00
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<a href="http://llvm.org/svn/llvm-project/libcxx/trunk/">Browse SVN</a>
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<a href="http://llvm.org/viewvc/llvm-project/libcxx/trunk/">Browse ViewVC</a>
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2010-05-12 03:42:16 +08:00
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</div>
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<div id="content">
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<!--*********************************************************************-->
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<h1>"libc++" C++ Standard Library</h1>
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<!--*********************************************************************-->
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<p>libc++ is a new implementation of the C++ standard library, targeting
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C++0X.</p>
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<p>All of the code in libc++ is available under the standard
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<a href="http://llvm.org/docs/DeveloperPolicy.html#license">LLVM
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License</a>, a "BSD-style" license.</p>
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<!--=====================================================================-->
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<h2 id="goals">Features and Goals</h2>
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<!--=====================================================================-->
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<ul>
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<li>Correctness as defined by the (currently draft) C++0X standard.</li>
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<li>Fast execution.</li>
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<li>Minimal memory use.</li>
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<li>Fast compile times.</li>
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<li>ABI compatibility with gcc's libstdc++ for some low-level features
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such as exception objects, rtti and memory allocation.</li>
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<li>Extensive unit tests.</li>
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</ul>
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<!--=====================================================================-->
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<h2 id="requirements">Platform Support</h2>
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<!--=====================================================================-->
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<p>libc++ is known to work on the following platforms, using g++-4.2 and
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clang (lack of C++0X language support disables some functionality).</p>
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<ul>
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<li>Mac OS X i386</li>
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<li>Mac OS X x86_64</li>
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</ul>
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<!--=====================================================================-->
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<h2 id="dir-structure">Current Status</h2>
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<!--=====================================================================-->
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<p>libc++ is still under development. It has about 85% of
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<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3092.pdf">N3092</a>
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implemented/tested.</p>
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<ul>
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<li>Missing <code><future></code></li>
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<li>Missing <code><regex></code></li>
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<li>Under construction <code><random></code></li>
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</ul>
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<p>libc++ is currently dependent upon a separate library for the low-level
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ABI compatibility with gcc. As a workaround it can be linked against
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gcc's libstdc++.</p>
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<!--=====================================================================-->
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<h2>Get it and get involved!</h2>
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<!--=====================================================================-->
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<p>To check out the code, use:</p>
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<ul>
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2010-05-12 04:37:52 +08:00
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<li><code>svn co http://llvm.org/svn/llvm-project/libcxx/trunk libcxx</code></li>
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<li><code>cd libcxx/lib</code></li>
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2010-05-12 03:42:16 +08:00
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<li><code>./buildit</code></li>
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</ul>
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<p>To run the libc++ test suit (recommended):</p>
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<ul>
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2010-05-12 04:37:52 +08:00
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<li><code>cd libcxx/test</code></li>
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2010-05-12 03:42:16 +08:00
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<li><code>./testit</code></li>
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</ul>
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2010-05-12 03:53:34 +08:00
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<p>Send discussions to the
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(<a href="http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev">clang mailing list</a>).</p>
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2010-05-12 03:42:16 +08:00
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</div>
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</body>
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2010-05-12 04:37:52 +08:00
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</html>
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