[LLVMdev] RTTI handling

[John McCall]

On Oct 3, 2011, at 4:42 AM, Somorjai, Akos wrote:
> I'm trying to use this warning to check the vtable problem. Here's an example
> 
> In mem.hpp 
> 
> class
> AA {
> // Construction / destruction:
> protected:
> AA ();
> AA (const AA&); // Disabled
> public:
> virtual ~AA ();
> };
> 
> In mem.cpp
> 
> #include "mem.hpp"
> 
> AA::~AA()
> {
> }
> 
> And I still get the following warning:
> 
> warning: 'AA' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit [-Wweak-vtables,3]

Which version of Clang are you using?  Like I said, this warning was still experimental even a few months ago, and it's gotten a lot of attention on ToT.  In particular, this case no longer warns.

John.
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