Author: Aaron Ballman Date: 2021-09-17T13:49:17-04:00 New Revision: 101c3de39fbcdd7d47b25aaf6d972e435f017077
URL: https://github.com/llvm/llvm-project/commit/101c3de39fbcdd7d47b25aaf6d972e435f017077 DIFF: https://github.com/llvm/llvm-project/commit/101c3de39fbcdd7d47b25aaf6d972e435f017077.diff LOG: Add information about C99 to the C status page. Added: Modified: clang/www/c_status.html Removed: ################################################################################ diff --git a/clang/www/c_status.html b/clang/www/c_status.html index 4fb3764233fda..386859125a82a 100644 --- a/clang/www/c_status.html +++ b/clang/www/c_status.html @@ -84,8 +84,251 @@ <h2 id="c89">C89 implementation status</h2> <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> +<p>Note, the list of C99 features comes from the C99 committee draft. A list of N-numbered documents for these features does not appear in either the standard or in any available editor's report, so this section does not track document numbers currently.</p> <p>You can use Clang in C99 mode with the <code>-std=c99</code> option.</p> +<details> +<summary>List of features and minimum Clang version with support</summary> + +<table width="689" border="1" cellspacing="0"> + <tr> + <th>Language Feature</th> +<!-- <th>C99 Proposal</th> --> + <th>Available in Clang?</th> + </tr> + <tr> + <td>restricted character set support via digraphs and <iso646.h></td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>more precise aliasing rules via effective type</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>restricted pointers</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>variable length arrays</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>flexible array members</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>static and type qualifiers in parameter array declarators</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>more precise aliasing rules via effective type</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>complex and imaginary support in <complex.h></td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>type-generic math macros in <tgmath.h></td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>the long long int type</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>increase minimum translation limits</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>additional floating-point characteristics in <float.h></td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>remove implicit int</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>reliable integer division</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>universal character names (\u and \U)</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>extended identifiers</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>hexadecimal floating-point constants</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>compound literals</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>designated initializers</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>// comments</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>extended integer types and library functions in <inttypes.h> and <stdint.h></td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>remove implicit function declaration</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>preprocessor arithmetic done in intmax_t/uintmax_t</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>mixed declarations and code</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>new block scopes for selection and iteration statements</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>integer constant type rules</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>integer promotion rules</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>macros with a variable number of arguments</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>IEC 60559 support</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>trailing comma allowed in enum declaration</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>inline functions</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>boolean type in <stdbool.h></td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>idempotent type qualifiers</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>empty macro arguments</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>new structure type compatibility (tag compatibility)</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>additional predefined macro names</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>_Pragma preprocessing operator</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>standard pragmas</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>__func__ predefined identifier</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>va_copy macro</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> + <tr> + <td>LIA compatibility annex</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="none" align="center">No</td> + </tr> + <tr> + <td>remove deprecation of aliased array parameters</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>conversion of array to pointer not limited to lvalues</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>relaxed constraints on aggregate and union initialization</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>relaxed restrictions on portable header names</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="unknown" align="center">Unknown</td> + </tr> + <tr> + <td>return without an expression not permitted in function that returns a value</td> +<!-- <td><a href="">NXXXX</a></td> --> + <td class="full" align="center">Yes</td> + </tr> +</table> +</details> + <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> _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
