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* gcc-wwwdocs branch master updated. acd58a986d9d28bc0d9b78caf7317840ee286b73
@ 2023-01-13 19:47 Qing Zhao
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From: Qing Zhao @ 2023-01-13 19:47 UTC (permalink / raw)
To: gcc-cvs-wwwdocs
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- Log -----------------------------------------------------------------
commit acd58a986d9d28bc0d9b78caf7317840ee286b73
Author: Qing Zhao <qing.zhao@oracle.com>
Date: Fri Jan 13 19:47:01 2023 +0000
gcc-13/changes: Mention -fstrict-flex-arrays and its impact.
diff --git a/htdocs/gcc-13/changes.html b/htdocs/gcc-13/changes.html
index 41a117b4..96d47903 100644
--- a/htdocs/gcc-13/changes.html
+++ b/htdocs/gcc-13/changes.html
@@ -39,6 +39,10 @@ a work-in-progress.</p>
<li>Legacy debug info compression option <code>-gz=zlib-gnu</code> was removed
and the option is ignored right now.</li>
<li>New debug info compression option value <code>-gz=zstd</code> has been added.</li>
+ <li><code>-Warray-bounds=2</code> will no longer issue warnings for out of
+ bounds accesses to trailing struct members of one-element array type
+ anymore. Instead it diagnoses accesses to trailing arrays according to
+ <code>-fstrict-flex-arrays</code>. </li>
</ul>
@@ -434,6 +438,17 @@ a work-in-progress.</p>
<h2>Other significant improvements</h2>
<!-- <h3 id="uninitialized">Eliminating uninitialized variables</h3> -->
+<h3 id="flexible array">Treating trailing arrays as flexible array members</h3>
+
+<ul>
+ <li>GCC can now control when to treat the trailing array of a structure as a
+ flexible array member for the purpose of accessing the elements of such
+ an array. By default, all trailing arrays in aggregates are treated as
+ flexible array members. Use the new command-line option
+ <code>-fstrict-flex-arrays</code> to control which array members are
+ treated as flexible arrays.
+ </li>
+</ul>
<!-- .................................................................. -->
<!-- <h2 id="13.1">GCC 13.1</h2> -->
-----------------------------------------------------------------------
Summary of changes:
htdocs/gcc-13/changes.html | 15 +++++++++++++++
1 file changed, 15 insertions(+)
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2023-01-13 19:47 gcc-wwwdocs branch master updated. acd58a986d9d28bc0d9b78caf7317840ee286b73 Qing Zhao
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