On Thursday, 27 February 2020 04:40:34 PST Ville Voutilainen wrote:
> The chance is very good; I talked about this with the maintainer of
> GCC already, and he was amenable to disabling
> an "unknown attribute" warning if the attribute has a namespace. For
> attributes that don't have namespaces,
> diagnosing unknown attributes allows diagnosing typos, so it's
> unlikely that all such warnings would be axed.
I think what we need is an attribute-declaring attribute. That way, the
compiler can still warn about unknown attributes in case they are typos, but
won't for attributes that the user intended to write.
[[declare_attribute(qt::emit)]];
later:
[[qt::emit]] closed();
This is a standard change. Alternatively, [[gnu::declare_attribute(qt::emit)]]
until C++23.
--
Thiago Macieira - thiago.macieira (AT) intel.com
Software Architect - Intel System Software Products
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