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 caa5dc6995aac2c7dc1a139e1a021927faaf73eb
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- Log -----------------------------------------------------------------
commit caa5dc6995aac2c7dc1a139e1a021927faaf73eb
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Fri Mar 25 23:12:16 2022 +0000

    Add release notes for new C2X features in GCC 12

diff --git a/htdocs/gcc-12/changes.html b/htdocs/gcc-12/changes.html
index 9cff81b9..689feeba 100644
--- a/htdocs/gcc-12/changes.html
+++ b/htdocs/gcc-12/changes.html
@@ -193,6 +193,27 @@ a work-in-progress.</p>
   </li>
 </ul>
 
+<h3 id="c">C</h3>
+<ul>
+  <li>Some new features from the upcoming C2X revision of the ISO C
+  standard are supported with <code>-std=c2x</code>
+  and <code>-std=gnu2x</code>.  Some of these features are also
+  supported as extensions when compiling for older language versions.
+  In addition to the features listed, some features previously
+  supported as extensions and now added to the C standard are enabled
+  by default in C2X mode and not diagnosed with <code>-std=c2x
+  -Wpedantic</code>.
+  <ul>
+    <li>Digit separators (as in C++) are supported for C2X.</li>
+    <li>The <code>#elifdef</code> and <code>#elifndef</code>
+    preprocessing directives are now supported.</li>
+    <li>The <code>printf</code> and <code>scanf</code> format checking
+    with <code>-Wformat</code> now supports the <code>%b</code> format
+    specified by C2X for binary integers, and the <code>%B</code>
+    format recommended by C2X for <code>printf</code>.
+  </ul></li>
+</ul>
+
 <h3 id="cxx">C++</h3>
 <ul>
   <li>Several C++23 features have been implemented:

-----------------------------------------------------------------------

Summary of changes:
 htdocs/gcc-12/changes.html | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)


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