[committed] wwwdocs: gcc-13: Add release notes for more C23 features
Commit Message
@@ -112,9 +112,41 @@ a work-in-progress.</p>
<ul>
<li><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3042.htm">N3042</a>,
Introduce the nullptr constant</li>
+ <li><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2963.htm">N2963</a>,
+ Enhanced Enumerations (fixed underlying types)</li>
+ <li><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2975.pdf">N2975</a>,
+ Relax requirements for variadic parameter lists</li>
+ <li><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3007.htm">N3007</a>,
+ Type inference for object definitions (<code>auto</code>)</li>
+ <li><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3018.htm">N3018</a>,
+ The <code>constexpr</code> specifier for object definitions</li>
+ <li><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3038.htm">N3038</a>,
+ Introduce storage-class specifiers for compound literals</li>
+ <li><code>typeof</code> (previously supported as an extension)
+ and <code>typeof_unqual</code></li>
+ <li>New
+ keywords <code>alignas</code>, <code>alignof</code>, <code>bool</code>,
+ <code>false</code>, <code>static_assert</code>, <code>thread_local</code>,
+ <code>true</code></li>
+ <li><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2764.pdf">N2764</a>,
+ The <code>noreturn</code> attribute</li>
<li>Support for empty initializer braces</li>
+ <li><code>__STDC_VERSION_*_H__</code> header version macros</li>
+ <li>Removal of <code>ATOMIC_VAR_INIT</code></li>
+ <li><code>unreachable</code> macro
+ in <code><stddef.h></code></li>
+ <li>Removal of trigraphs</li>
+ <li>Removal of unprototyped functions</li>
+ <li><code>printf</code> and <code>scanf</code> format checking
+ with <code>-Wformat</code> for <code>%wN</code>
+ and <code>%wfN</code> format length modifiers</li>
+ <li><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2836.pdf">N2836</a>,
+ Identifier Syntax using Unicode Standard Annex 31</li>
</ul>
</li>
+ <li>In addition to those C23 features, existing features adopted in
+ C23 have been adjusted to follow C23 requirements and are not diagnosed
+ with <code>-std=c2x -Wpedantic</code>.</li>
<li>New warnings:
<ul>
<li><code>-Wenum-int-mismatch</code> warns about mismatches between an