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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="projects">Projects Building with Clang</h2> + + <p>Clang is now capable of compiling large C++ projects, and the following + table describes various projects that we have attempted to compile with + Clang++.</p> + +<table width="689" border="1" cellspacing="0"> + <tr> + <th>Project</th> + <th>Status</th> + <th>Last Tested</th> + <th>Tracking Bug</th> + </tr> + <tr> + <td><a href="http://clang.llvm.org">Clang</a> and <a href="http://llvm.org">LLVM</a></td> + <td>Successful self-hosting achieved</td> + <td>Continually</td> + <td></td> + </tr> + <tr> + <td><a href="http://www.cmake.org">CMake</a></td> + <td>Compiles, passes regression tests (debug build)</td> + <td>February 9, 2010</td> + <td></td> + </tr> + <tr> + <td><a href="http://www.boost.org">Boost</a></td> + <td><a href="http://blog.llvm.org/2010/05/clang-builds-boost.html">Compiles + and passes regression tests</a> on Darwin/X86-64.</td> + <td>May 20, 2010</td> + <td><a href="http://llvm.org/bugs/show_bug.cgi?id=6023">PR6023</a></td> + </tr> + <tr> + <td><a href="http://qt.nokia.com">Qt</a></td> + <td>Partially compiles; miscompilation of uic prevents complete compilation, qmake works, some small examples also.</td> + <td>February 9, 2010</td> + <td><a href="http://llvm.org/bugs/show_bug.cgi?id=5881">PR5881</a></td> + </tr> +</table> + +<h2 id="cxx0x">C++0x Implementation status</h2> + +<p>Clang's development effort is focused primarily on fixing bugs in the current +ISO C++ standard (1998/2003). This section tracks the status of various C++0x +features.</p> + + +<h2 id="specification">Implementation Status by Feature</h2> + + +<!-- Within this table: The colors we're using to color-code our level +of support for a given section: + + White (no background): not considered/tested. + #C11B17: Broken. + #F88017: Some useful examples work + #FDD017: Many examples work + #347C17: Nearly everything works + #00FF00 + check mark: Implementation complete! + --> + +<p>The following table is used to help track our implementation + progress toward implementing the complete C++'0x standard. We use a + simple, somewhat arbitrary color-coding scheme to describe the + relative completeness of features:</p> + +<table width="689" border="1" cellspacing="0"> + <tr> + <th>Not started/not evaluated</th> + <th>Not Applicable</th> + <th>Broken</th> + <th>Some examples work</th> + <th>Many examples work</th> + <th>Nearly everything works</th> + <th>Complete</th> + <th>Complete (with tests for each paragraph)</th> + </tr> + <tr> + <td></td> + <td class="na">N/A</td> + <td class="broken"></td> + <td class="basic"></td> + <td class="medium"></td> + <td class="advanced"></td> + <td class="complete"></td> + <td class="complete" align="center">✓</td> + </tr> +</table> + +<p>A feature is "complete" when the appropriate Clang component (Parse, AST, +Sema, CodeGen) implements the behavior described in all of the +paragraphs in the relevant C++'0x draft standard. The major +components are:</p> + +<dl> + <dt>Parse</dt> + <dd>Clang is able to parse the grammar of this feature (or the grammar + described by this section), but does not necessarily do anything with the + parsed result. Use Clang's <code>-fsyntax-only</code> option to parse C++ + programs.</dd> + + <dt>AST</dt> + <dd>Clang builds an abstract syntax tree (AST) for the feature, but does not + necessarily perform any type-checking. Use Clang's <code>-ast-print</code> + option to print the resulting ASTs.</dd> + + <dt>Sema</dt> + <dd>Clang parses and type-checks this feature and provides a well-formed AST + annotated with types. Use Clang's <code>-fsyntax-only</code> to type-check + code.</dd> + + <dt>CodeGen</dt> + <dd>Clang parses, type-checks, and generates code for this feature, allowing + one to compile and execute programs.</dd> +</dl> + +<p>Updates to this table are welcome! Tests for the various features are also +welcome!</p> + +<table width="689" border="1" cellspacing="0"> +<tr><td colspan="6" align="center" bgcolor="#ffffcc">C++0x Features</td> +</tr> + <tr> + <th>Feature</th> + <th>Parse</th> + <th>AST</th> + <th>Sema</th> + <th>CodeGen</th> + <th>Notes</th> + </tr> + +<tr> + <td>Explicit conversion operators (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2437.pdf">N2437</a>)</td> + <td class="complete" align="center"></td> + <td class="medium" align="center"></td> + <td class="advanced" align="center"></td> + <td class="broken"></td> + <td>No name mangling; ASTs don't contain calls to conversion operators</td> +</tr> +<tr> + <td>Static assertions (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2004/n1720.pdf">N1720</a>)</td> + <td class="complete" align="center"></td> + <td class="complete" align="center"></td> + <td class="complete" align="center"></td> + <td class="na">N/A</td> + <td></td> +</tr> +<tr> + <td>Deleted functions (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm">N2346</a>)</td> + <td class="complete" align="center"></td> + <td class="complete" align="center"></td> + <td class="complete" align="center"></td> + <td class="na">N/A</td> + <td></td> +</tr> +<tr> + <td>Rvalue references (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2006/n2118.html">N2118</a> + <a href="http://www.open-std.org/JTC1/SC22/WG21/docs/papers/2009/n2831.html">N2831</a>)</td> + <td class="complete" align="center"></td> + <td class="complete" align="center"></td> + <td class="complete" align="center"></td> + <td class="broken"></td> + <td></td> +</tr> +<tr> + <td>nullptr (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2431.pdf">N2431</a>)</td> + <td class="complete" align="center"></td> + <td class="complete" align="center"></td> + <td class="complete" align="center"></td> + <td class="broken"></td> + <td></td> +</tr> +<tr> + <td>Right angle brackets (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html">N1757</a>)</td> + <td class="complete" align="center"></td> + <td class="na" align="center">N/A</td> + <td class="na" align="center">N/A</td> + <td class="na">N/A</td> + <td></td> +</tr> +<tr> + <td>Decltype (<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2343.pdf">N2343</a>)</td> + <td class="complete" align="center">✓</td> + <td class="complete" align="center">✓</td> + <td class="complete" align="center">✓</td> + <td class="na">N/A</td> + <td></td> +</tr> +</table> +<br /> +</div> +</body> +</html> |