Re: [IBPP-DISCUSS] inheritance of *Impl classes with gcc 2.96

[Olivier M. <om...@ti...>]

> I just ran into a problem that I believe we have discussed before
> where the *Impl classes are derived as "protected" from the interface
> class.  ie (from _internals.h) :
>
> class DatabaseImpl : protected IBPP::Database
>
> I finally upgraded to Mandrake 8.0 which uses gcc 2.96.  This version
> of gcc does not appear to tolerate this type of inheritance at all.
> It does not issue a warning or an error but the dynamic_casts do not
> work, which means that the tests crash almost immediately.  I changed
> all the protected inheritance to public and everything works again.
> (Of course, I didn't check that in.)
>
> - Matt

Hello Matt,

Following the discussion we had before (you're right) on that matter, I 
also changed all protected inheritance to public -- in my local tree. 
And I'm late (shall I say as always) on committing my work.

I suggest that the first of us who has some significant other details 
to check-in, do check-in that protected-public change at the same time.

--
Olivier Mascia