https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82018
Thomas Koenig <tkoenig at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |tkoenig at gcc dot gnu.org
--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> ---
(In reply to janus from comment #5)
> (In reply to tkoe...@netcologne.de from comment #3)
> > > Maybe one could re-enable such warnings at least with -Wextra?
> >
> > The warning is given with -Wconversion-extra.
> >
> > We could enable -Wconversion-extra with -Wextra.
>
> Yes, please! Why isn't that done already? Sounds like an ideal candidate for
> -Wextra. Leaving it out certainly violates the principle of least surprise
> ...
>
> If no one else has time for such "trivialities", I will take the time.
The patch is quite simple (just modify the relevant line
in lang.opts and update the docs).
-Wconversion-extra uncovers lots of things that people may not want to
see a warning about, such as i8=i4.
We had a lengthy discussion about this in 2015, with the current
implementation as the result.
See https://gcc.gnu.org/ml/fortran/2015-05/msg00176.html and
followups for the discussions about this.
