[cfe-dev] Fine grain control over -Wconversion?

[Justin Bogner]

"Sean McBride" <sean at rogue-research.com> writes:
> I maintain a few buildbots for open source projects and have taken the
> approach of using -Weverything then -Wno-foobar to disable some
> warnings.
>
> Recently one clang bot had a -Wundefined-bool-conversion warning that
> my bot didn't.  The reason is that I have '-Weverything
> -Wno-conversion' in there.
>
> So I set about trying to get finer grain control.  I tried:
>
> -Weverything -Wno-sign-conversion -Wno-shorten-64-to-32 -Wno-float-conversion
>
> but I still get many warnings of the form:
>
>  implicit conversion loses floating-point precision: 'double' to
> 'float' [-Wconversion]
>
> for which I guess -Wno-conversion is the only way to turn them off?
> But if I do, I lose -Wundefined-bool-conversion and maybe others...

This isn't exactly what you want, but I guess you could say:

    -Weverything -Wno-conversion -Wundefined-bool-conversion