[cfe-dev] How to suppress a specific diagnostic?

[Fariborz Jahanian]

Objective-c is the oldest dialect of c added to clang. As such, old warnings have not
kept up with new rules regarding having a diagnostic flag to turn them off/on. 

- Fariborz

On Apr 27, 2012, at 10:46 AM, Arthur O'Dwyer wrote:

> Joerg Sonnenberger <joerg at britannica.bec.de> wrote:
>> It's a bug if a warning does not have a corresponding
>> option to disable it. So what warning are you talking about?
> 
> Then clang is full of bugs that I assume must be trivial to grep for. ;)
> 
> When I feed my example autogenerated code to clang 3.1
> (tags/Apple/clang-318.0.58), I get this output:
> 
> x.m:2:1: warning: no 'assign', 'retain', or 'copy' attribute is
> specified - 'assign' is assumed
> @property Foo *foo;
> ^
> x.m:2:1: warning: default property attribute 'assign' not appropriate
> for non-gc object
> x.m:4:18: warning: division by zero is undefined
> void f(int x) { x/=0; }
>                 ^ ~
> 
> That's three distinct warnings with no options to toggle any of them.
> Unless ToT has addressed these warnings already.
> 
> -Arthur
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