Hi Martin,
On Thu, Aug 14, 2025 at 02:21:10PM +0200, Martin Uecker wrote:
> > > You could also add a warning when _Countof is applied to a
> > > non-constant pointer.
> >
> > Yup, I should add that. I wouldn't enable it in any groups flags,
> > though. I don't want people to start writing [cons
Am Donnerstag, dem 14.08.2025 um 14:05 +0200 schrieb Alejandro Colomar:
> Hi Martin,
>
> On Thu, Aug 14, 2025 at 01:37:55PM +0200, Martin Uecker wrote:
> > Am Donnerstag, dem 14.08.2025 um 12:19 +0200 schrieb Alejandro Colomar:
> > > Hi Martin,
> > >
> > > On Thu, Aug 14, 2025 at 11:01:05AM +0200
Hi Martin,
On Thu, Aug 14, 2025 at 01:37:55PM +0200, Martin Uecker wrote:
> Am Donnerstag, dem 14.08.2025 um 12:19 +0200 schrieb Alejandro Colomar:
> > Hi Martin,
> >
> > On Thu, Aug 14, 2025 at 11:01:05AM +0200, Alejandro Colomar wrote:
> > > +void
> > > +decay_obvious (int a[2])
> > > +{
> > >
Am Donnerstag, dem 14.08.2025 um 12:19 +0200 schrieb Alejandro Colomar:
> Hi Martin,
>
> On Thu, Aug 14, 2025 at 11:01:05AM +0200, Alejandro Colomar wrote:
> > +void
> > +decay_obvious (int a[2])
> > +{
> > + _Countof (typeof (a)); /* { dg-error "invalid" } */
> > + _Countof (a + 1); /* { dg-e
Hi Martin,
On Thu, Aug 14, 2025 at 11:01:05AM +0200, Alejandro Colomar wrote:
> +void
> +decay_obvious (int a[2])
> +{
> + _Countof (typeof (a)); /* { dg-error "invalid" } */
> + _Countof (a + 1); /* { dg-error "invalid" } */
It didn't occur to me the following test:
alx@devuan:~/tmp
From: Martin Uecker
As a GNU extension. I'll propose it for standardization, but first we'd
need to make array parameters meaningful in the standard.
This extension will allow using _Countof() in more places, reducing the
chances of specifying an incorrect size accidentally.
Due to how the arr
