diff mbox series

[V2] gcc-14/changes.html: Deprecate a GCC C extension on flexible array members.

Message ID 20230807142216.1857701-1-qing.zhao@oracle.com
State Unresolved
Headers
Series [V2] gcc-14/changes.html: Deprecate a GCC C extension on flexible array members. |

Checks

Context Check Description
snail/gcc-patch-check warning Git am fail log

Commit Message

Qing Zhao Aug. 7, 2023, 2:22 p.m. UTC 
  Hi,

This is the 2nd version of the patch.
Comparing to the 1st version, the only change is to address Richard's
comment on refering a warning option for diagnosing deprecated behavior.


Okay for committing?

thanks.

Qing

======

*htdocs/gcc-14/changes.html (Caveats): Add notice about deprecating a C
extension about flexible array members.
---
 htdocs/gcc-14/changes.html | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

Comments

Richard Biener Aug. 8, 2023, 7:55 a.m. UTC | #1 
On Mon, 7 Aug 2023, Qing Zhao wrote:

> Hi,
> 
> This is the 2nd version of the patch.
> Comparing to the 1st version, the only change is to address Richard's
> comment on refering a warning option for diagnosing deprecated behavior.
> 
> 
> Okay for committing?

OK.

> thanks.
> 
> Qing
> 
> ======
> 
> *htdocs/gcc-14/changes.html (Caveats): Add notice about deprecating a C
> extension about flexible array members.
> ---
>  htdocs/gcc-14/changes.html | 13 ++++++++++++-
>  1 file changed, 12 insertions(+), 1 deletion(-)
> 
> diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html
> index dad1ba53..eae25f1a 100644
> --- a/htdocs/gcc-14/changes.html
> +++ b/htdocs/gcc-14/changes.html
> @@ -30,7 +30,18 @@ a work-in-progress.</p>
>  <!-- .................................................................. -->
>  <h2>Caveats</h2>
>  <ul>
> -  <li>...</li>
> +  <li><strong>C:</strong>
> +      Support for the GCC extension, a structure containing a C99 flexible array
> +      member, or a union containing such a structure, is not the last field of
> +      another structure, is deprecated. Refer to
> +      <a href="https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html">
> +      Zero Length Arrays</a>.
> +      Any code relying on this extension should be modifed to ensure that
> +      C99 flexible array members only end up at the ends of structures.
> +      Please use the warning option
> +      <a href="https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wflex-array-member-not-at-end"><code>-Wflex-array-member-not-at-end</code></a> to
> +      identify all such cases in the source code and modify them.
> +  </li>
>  </ul>
>  
>  
>
diff mbox series

Patch

diff --git a/htdocs/gcc-14/changes.html b/htdocs/gcc-14/changes.html
index dad1ba53..eae25f1a 100644
--- a/htdocs/gcc-14/changes.html
+++ b/htdocs/gcc-14/changes.html
@@ -30,7 +30,18 @@  a work-in-progress.</p>
 <!-- .................................................................. -->
 <h2>Caveats</h2>
 <ul>
-  <li>...</li>
+  <li><strong>C:</strong>
+      Support for the GCC extension, a structure containing a C99 flexible array
+      member, or a union containing such a structure, is not the last field of
+      another structure, is deprecated. Refer to
+      <a href="https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html">
+      Zero Length Arrays</a>.
+      Any code relying on this extension should be modifed to ensure that
+      C99 flexible array members only end up at the ends of structures.
+      Please use the warning option
+      <a href="https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wflex-array-member-not-at-end"><code>-Wflex-array-member-not-at-end</code></a> to
+      identify all such cases in the source code and modify them.
+  </li>
 </ul>