[Bug c++/47942] Not possible to initialize a shared_ptr with a class defined in function scope, inheriting from a global scope base class

[skagget77 at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47942

--- Comment #4 from Johan Andersson <skagget77 at gmail dot com> 2011-03-01 
13:58:00 UTC ---
Thanks for the quick reply and advice to use static_cast, the reinterpret_cast
was a temporary memory lapse!

The old GCC version was because I used a web-interface to verify the problem.
I'm normally on Windows and Visual C++.

(In reply to comment #3)
> (In reply to comment #2)
> > Your options are either to use C++0x mode (classes without linkage can be 
> > used
> > as template arguments in C++0x) or to upcast the pointer
> 
> It seems that the change to allow local types as template args (see
> http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm for the
> proposal) was implemented in GCC 4.5, so you can't rely on that in 4.4
> 
> So the best option is:
> 
>     return BasePtr(static_cast<Base*>(new InlineImpl));