Re: More C type errors by default for GCC 14

On Wed, May 10, 2023 at 8:05=E2=80=AFAM Eli Zaretskii <[email protected]> wrote:
>
> > From: Neal Gompa <[email protected]>
> > Date: Wed, 10 May 2023 06:56:32 -0400
> > Cc: Eric Gallager <[email protected]>, Jonathan Wakely <jwakely.gcc@=
gmail.com>, [email protected],
> >       David Edelsohn <[email protected]>, Eli Zaretskii <[email protected]>,=
 Jakub Jelinek <[email protected]>,
> >       Arsen Arsenovi=C4=87 <[email protected]>, [email protected],
> >       [email protected]
> >
> > On Wed, May 10, 2023 at 6:48=E2=80=AFAM Sam James <[email protected]> wrot=
e:
> > >
> > > Neal Gompa wasn't keen on the idea at
> > > https://lore.kernel.org/c-std-porting/CAEg-Je8=3DdQo-jAdu=3DOd5DH+h9A=
[email protected]/
> > > because it'd feel like essentially "repeated punches".
> > >
> > > Maybe it'd work with some tweaks: I would, however, be more open to G=
CC 14 having
> > > implicit-function-declaration,implicit-int (these are so closely rela=
ted
> > > that it's not worth dividing the two up) and then say, GCC 15 having =
int-conversion and maybe
> > > incompatible-pointer-types. But spreading it out too much is likely c=
ounterproductive.
> >
> > Right, we've been going through a similar effort with C++ over the
> > past decade. GCC incrementally becoming more strict on C++ has been an
> > incredibly painful experience, and it eats away a ton of time that I
> > would have spent dealing with other problems. Having one big event
> > where the majority of changes to make the C compiler strict happen
> > will honestly make it less painful, even if it doesn't seem like it at
> > the moment.
>
> But not having such an event, ever, would be even less painful.

That's not going to happen. An event will eventually happen when GCC
and Clang switch their default C standard version. And making the
compilers stricter is something that has enough benefit to outweigh
the pain. The question is "how often" rather than "should we do it".



--
=E7=9C=9F=E5=AE=9F=E3=81=AF=E3=81=84=E3=81=A4=E3=82=82=E4=B8=80=E3=81=A4=EF=
=BC=81/ Always, there's only one truth!