[cfe-commits] r90874 - in /cfe/trunk: lib/Sema/SemaExprCXX.cpp test/SemaObjCXX/composite-objc-pointertype.mm
Fariborz Jahanian
fjahanian at apple.com
Tue Dec 8 13:14:33 PST 2009
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
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