[cfe-commits] r90874 - in /cfe/trunk: lib/Sema/SemaExprCXX.cpp test/SemaObjCXX/composite-objc-pointertype.mm

[Fariborz Jahanian]

On Dec 8, 2009, at 1:10 PM, Douglas Gregor wrote:

>
> On Dec 8, 2009, at 12:04 PM, Fariborz Jahanian wrote:
>
>>
> This will work for NULL and any Objective-C pointer type, but there  
> are larger issues in this function for Objective-C since nothing  
> beyond the null-pointer-constant checks will work. For example,  
> here's a case where we should be able to find the composite type  
> between two interface pointers:
>
>  @interface C1 { } @end
>  @interface C2 : C1 { } @end
>
>  void f(int Cond, C1 *c1, const C2 *c2) {
>    (void)(Cond? c1 : c2);
>  }
>
> This compiles with GCC (Objective-C and Objective-C++ mode) and with  
> Clang in Objective-C mode, but with Clang Objective-C++ we get
>
> t.mm:5:14: error: incompatible operand types ('C1 *' and 'C2 const *')
>  (void)(Cond? c1 : c2);
>             ^ ~~   ~~
> 1 diagnostic generated.

Yes. This is a separate issue. I will take a look.

- Fariborz

>
>
> 	- Doug