On Wed, 8 Feb 2023, Siddhesh Poyarekar wrote:
> On 2023-02-08 14:09, Joseph Myers wrote:
> > What must be avoided is -pedantic diagnostics for
> >
> > struct flex1 { int n; int data[1]; };
> > struct out_flex_end1 { int m; struct flex1 flex_data; };
> >
> > regardless of whether considered flexible or not, since that's clearly
> > valid in standard C.
> >
>
> Are you sure about "regardless of whether considered flexible or not", since
> ISTM the validity of the above in standard C is limited to when it's
> considered a non-flexible array. So with -pedantic it shouldn't warn, but it
> also then shouldn't consider it a flexible array.
>
> In other words, perhaps it makes sense to imply -fstrict-flex-arrays with
> -pedantic?
There should be no code generation effects from -pedantic.
--
Joseph S. Myers
jos...@codesourcery.com
