On Wed, Jul 31, 2019 at 11:10:36PM -0700, h...@zytor.com wrote: > On July 31, 2019 4:55:47 PM PDT, Miguel Ojeda > <miguel.ojeda.sando...@gmail.com> wrote: > >On Wed, Jul 31, 2019 at 11:01 PM <h...@zytor.com> wrote: > >> > >> The standard is moving toward adding this as an attribute with the > >[[fallthrough]] syntax; it is in C++17, not sure when it will be in C > >be if it isn't already. > > > >Not yet, but it seems to be coming: > > > > http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2268.pdf > > > >However, even if C2x gets it, it will be quite a while until the GCC > >minimum version gets bumped up to that, so... > > > >Cheers, > >Miguel > > The point was that we should plan ahead in whatever we end up doing.
By reserving 'fallthrough' as a keyword we do exactly that. We can then define it to whatever the compiler/tool at hand requires. Once GCC gains support for that [[attribute]] nonsense, we can detector that and use that over the __attribute__(()) [ Also the Cxx attribute syntax is an abomination -- just a lesser one than reading actual comments :-) ]
