> On Oct 11, 2015, at 14:10 , Christiaan Hofman <cmhof...@gmail.com> wrote: > > I handled those by adding dummy arguments, either a variable with a nil > value, or a dummy object (like an empty notification in this case).
I had a few where that wasn't possible, or creating a dummy object might have side effects that aren't clear. It looks like they just added nonnull without actually auditing anything. > > The one place where I needed the pragma’s was with the -init for the > operation(queue) class clusters in the file view project. > >> Adding WARNING_CFLAGS = -Wno-tautological-pointer-compare to FileView >> helped, too. >> > > Where does that have an effect? My version of it has some checks for functions, like this: NULL == dispatch_async_f IIRC clang says to use address-of before the function, but then it complains about that, too. This style was an Apple recommendation for weakly-linked functions last I checked, and it's worked for years, just like all the nil arguments. I'm pretty unhappy with clang and its warnings; somebody at Apple likes C++ too much. -- adam
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