another c++ q (with specialization and inheritance )

[Shachar Shemesh]

Erez D wrote:
>         c2<int> gen_c2(int a)
>         {
>                 c2<int> ret(a);
>                 return ret;
>         }
It would seem to me that this line instantiates c2<int>, so that
> template <> class c2<int> : public c1<int>
> {
> public:
>         c2(int &a):c1(a) {};
> };
>
is an attempt to specialized a class that has already been instantiated 
from the generic template. The compiler has no way to go back and change 
the storage size for c2<int>, which it already needed to know when 
compiling the lines above.

Try to have gen_c2 return a pointer to c2<int>. That may resolve the 
problem.

Shachar

-- 
Shachar Shemesh
Lingnu Open Source Consulting Ltd.
http://www.lingnu.com

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