Add release notes for C23 features added in GCC 14. This doesn't cover any non-C23 new C features; any such features should also have release notes added.
diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html index 934cd1ad..045893cf 100644 --- a/htdocs/gcc-14/changes.html +++ b/htdocs/gcc-14/changes.html @@ -206,6 +206,31 @@ a work-in-progress.</p> <!-- <h3 id="c-family">C family</h3> --> +<h3 id="c">C</h3> + +<ul> + <li>Some more C23 features have been implemented: + <ul> + <li>Bit-precise integer types (<code>_BitInt (<i>N</i>)</code> + and <code>unsigned _BitInt (<i>N</i>)</code>): integer types with + a specified number of bits. These are only supported on + IA-32/x86-64 at present.</li> + <li>Structure, union and enumeration types may be defined more + than once in the same scope with the same contents and the same + tag; if such types are defined with the same contents and the + same tag in different scopes, the types are compatible.</li> + <li>The <code><stdckdint.h></code> header for checked + integer arithmetic.</li> + </ul> + </li> + <li>In addition to those C23 features, there are new command-line + options <code>-std=c23</code>, <code>-std=gnu23</code> + and <code>-Wc11-c23-compat</code>. These are equivalent to the + previous options <code>-std=c2x</code>, <code>-std=gnu2x</code> + and <code>-Wc11-c2x-compat</code>, which are deprecated but remain + supported.</li> +</ul> + <h3 id="cxx">C++</h3> <ul> -- Joseph S. Myers josmy...@redhat.com
