Author: Aaron Ballman Date: 2021-06-10T12:00:52-04:00 New Revision: 3a7a7749417854827cf621eaef6012d31e7a82ab
URL: https://github.com/llvm/llvm-project/commit/3a7a7749417854827cf621eaef6012d31e7a82ab DIFF: https://github.com/llvm/llvm-project/commit/3a7a7749417854827cf621eaef6012d31e7a82ab.diff LOG: Add a page to track the status of C proposals in Clang. Added: clang/www/c_status.html Modified: clang/www/menu.html.incl Removed: ################################################################################ diff --git a/clang/www/c_status.html b/clang/www/c_status.html new file mode 100644 index 0000000000000..72df57a667b89 --- /dev/null +++ b/clang/www/c_status.html @@ -0,0 +1,300 @@ +<!DOCTYPE html> +<html> +<head> + <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> + <title>Clang - C Programming Language 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 } + .partial { background-color: #FFE0B0 } + .unreleased { background-color: #FFFF99 } + .unknown { background-color: #FF55FF } + .full { background-color: #CCFF99 } + .na { background-color: #DDDDDD } + :target { background-color: #FFFFBB; outline: #DDDD55 solid thin; } + th { background-color: #FFDDAA } + td { vertical-align: middle } + tt { white-space: nowrap } + </style> +</head> +<body> + +<!--#include virtual="menu.html.incl"--> + +<div id="content"> + +<!--*************************************************************************--> +<h1>C Support in Clang</h1> +<!--*************************************************************************--> + +<p>Clang implements the following published and upcoming ISO C standards:</p> + +<table width="689" border="1" cellspacing="0"> +<tr> + <th>Language Standard</th> + <th>Flag</th> + <th>Available in Clang?</th> +</tr> +<tr> + <td><a href="#c89">C89</a></td> + <td><tt>-std=c89</tt></td> + <td class="full" align="center">Yes</td> +</tr> +<tr> + <td><a href="#c99">C99</a></td> + <td><tt>-std=c99</tt></td> + <td class="unknown" align="center">Almost certainly</td> +</tr> +<tr> + <td><a href="#c11">C11</a></td> + <td><tt>-std=c11</tt></td> + <td class="unknown" align="center">Probably</td> +</tr> +<tr> + <td><a href="#c17">C17</a></td> + <td><tt>-std=c17</tt></td> + <td class="unknown" align="center">Maybe?</td> +</tr> +<tr> + <td><a href="#c2x">C2x</a></td> + <td><tt>-std=c2x</tt></td> + <td class="partial" align="center">Partial</td> +</tr> +</table> + +<p>The implementation status for C99, C11, and C17 are currently under +investigation. Any proposal whose status in Clang is currently unknown +will be marked in <span class="unknown">magenta</span>.</p> + +<p>The Clang community is continually striving to improve C standards +compliance between releases. We implement the resolution for defect +reports, but we do not currently track our DR status (help with +tracking DR status is appreciated).</p> + +<p>The <a href="https://bugs.llvm.org/";>LLVM bug tracker</a> contains a +Clang C component that tracks known bugs with Clang's language +conformance.</p> + +<h2 id="c89">C89 implementation status</h2> + +<p>Clang implements all of the ISO 9899:1990 (C89) standard.</p> + +<h2 id="c99">C99 implementation status</h2> + +<p>Clang implements a significant portion of the ISO 9899:1999 (C99) standard, but the status of individual proposals is still under investigation.</p> + +<h2 id="c11">C11 implementation status</h2> + +<p>Clang implements a significant portion of the ISO 9899:2011 (C11) standard, but the status of individual proposals is still under investigation.</p> + +<h2 id="c17">C17 implementation status</h2> + +<p>Clang implements a significant portion of the ISO 9899:2018 (C17) standard, but the status of individual proposals is still under investigation.</p> + +<h2 id="c2x">C2x implementation status</h2> + +<p>Clang has support for some of the features of the C standard following C17, informally referred to as C2x.</p> + +<p>You can use Clang in C2x mode with the <code>-std=c2x</code> option.</p> + +<details open> +<summary>List of features and minimum Clang version with support</summary> + +<table width="689" border="1" cellspacing="0"> + <tr> + <th>Language Feature</th> + <th>C2x Proposal</th> + <th>Available in Clang?</th> + </tr> + <!-- Pre-Oct 2019 Papers --> + <tr> + <td>Evaluation formats</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2186.pdf";>N2186</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>Clarifying the restrict Keyword v2</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2260.pdf";>N2660</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>Harmonizing static_assert with C++</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2265.pdf";>N2665</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr> + <td>nodiscard attribute</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2667.pdf";>N2667</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr> + <td>maybe_unused attribute</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2670.pdf";>N2670</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr id="TS18661"> + <td rowspan="6">TS 18661 Integration</td> + </tr> + <tr> <!-- Pre-Oct 2019 --> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2314.pdf";>N2314</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> <!-- Pre-Oct 2019 --> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2341.pdf";>N2341</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> <!-- Pre-Oct 2019 --> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2401.pdf";>N2401</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> <!-- Pre-Oct 2019 --> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2359.pdf";>N2359</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> <!-- Nov 2020 --> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2546.pdf";>N2546</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>Preprocessor line numbers unspecified</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2322.htm";>N2322</a></td> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>deprecated attribute</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2334.pdf";>N2334</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr id="Attributes"> + <td rowspan="3">Attributes</td> + </tr> + <tr> <!-- Pre-Oct 2019 --> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2335.pdf";>N2335</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr> <!-- Aug 2020 --> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2554.pdf";>N2554</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr> + <td>Defining new types in offsetof</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2350.htm";>N2350</a></td> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>fallthrough attribute</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2408.pdf";>N2408</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr> + <td>Two's complement sign representation</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2412.pdf";>N2412</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>Adding the u8 character prefix</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2418.pdf";>N2418</a></td> + <td class="none" align="center">No</td> + </tr> + <tr> + <td>Remove support for function definitions with identifier lists</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2432.pdf";>N2432</a></td> + <td class="none" align="center">No</td> + </tr> + <!-- Oct 2019 Papers --> + <tr> + <td>*_IS_IEC_60559 feature test macros</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2379.htm";>N2379</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>Floating-point negation and conversion</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2416.pdf";>N2416</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>Annex F.8 update for implementation extensions and rounding</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2384.pdf";>N2384</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>_Bool definitions for true and false</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2393.pdf";>N2393</a></td> + <td class="none" align="center">No</td> + </tr> + <!-- Mar 2020 Papers --> + <tr> + <td>[[nodiscard("should have a reason")]]</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2448.pdf";>N2448</a></td> + <td class="full" align="center">Clang 10</td> + </tr> + <tr> + <td>Allowing unnamed parameters in function definitions</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2480.pdf";>N2480</a></td> + <td class="full" align="center">Clang 11</td> + </tr> + <!-- Aug 2020 Papers --> + <tr> + <td>Free positioning of labels inside compound statements</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2508.pdf";>N2508</a></td> + <td class="none" align="center">No</td> + </tr> + <tr> + <td>Clarification request for C17 example of undefined behavior</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2517.pdf";>N2517</a></td> + <td class="none" align="center">No</td> + </tr> + <tr> + <td>Querying attribute support</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2553.pdf";>N2553</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <!-- Nov 2020 Papers --> + <tr> + <td>Binary literals</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2549.pdf";>N2549</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr> + <td>Allow duplicate attributes</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2557.pdf";>N2557</a></td> + <td class="unreleased" align="center">Clang 13</td> + </tr> + <tr> + <td>Character encoding of diagnostic text</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2563.pdf";>N2563</a></td> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>What we think we reserve</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2572.pdf";>N2572</a></td> + <td class="partial" align="center">Yes</td> + </tr> + <tr> + <td>Decimal floating-point triples</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2580.htm";>N2580</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>Remove mixed wide string literal concatenation</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2594.htm";>N2594</a></td> + <td class="full" align="center">Clang 9</td> + </tr> + <tr> + <td>Update to IEC 60559:2020</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2600.pdf";>N2600</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>Compatibility of Pointers to Arrays with Qualifiers</td> + <td><a href="http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2607.pdf";>N2607</a></td> + <td class="unknown" align="center">Unknown</td> + </tr> +</table> +</details> + +</div> +</body> +</html> + diff --git a/clang/www/menu.html.incl b/clang/www/menu.html.incl index add2986a72ecc..3a360dc3af85f 100755 --- a/clang/www/menu.html.incl +++ b/clang/www/menu.html.incl @@ -12,6 +12,7 @@ <a href="/docs/UsersManual.html">User's Manual</a> <a href="/compatibility.html">Language Compatibility</a> <a href="/docs/LanguageExtensions.html">Language Extensions</a> + <a href="/c_status.html">C Status</a> <a href="/cxx_status.html">C++ Status</a> </div> _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
