Re: template depth problem

Venkat wrote:
> Trying to have the following usage; however, gcc is not liking.
When seeking help it is always desirable that you give us as much
information as possible. At the very least indicate which line gcc was
rejecting and if possible the error message that it gave. I know that
error messages are sometimes very lengthy where templates are concerned
but it is usually possible identify what is being complained about at
least in general.
> 
> #include <boost/smart_ptr.hpp>
> 
> namespace xyz {
> class elem {
> public:
>      typedef boost::shared_ptr<elem>     elem_sptr;
> };
> 
That just renames boost::shared pointer in the scope of class elem.
elem_sptr will not be visible anywhere outside this class scope. Why did
you encapsulate the typedef in a class?

> }
> 
> #include <map>
> 
> namespace abc {
> template <typename ObjectType>
> class BaseContainer
> {
>     typedef std::map<int, ObjectType::elem_sptr> Container;
> 
>     // tried this too
>     //typedef std::map<int, boost::shared_ptr<ObjectType> > Container;
> 
>     typedef Container::iterator iterator;
> 
>      Container  c;
> };
> 
I think you are trying too much with all those typedefs
> }
> 
> void main()
and of course, this is a popular error. the Standard requires main to
return an int.

> {
>     abc::BaseContainer<xyz::elem>  elem_container;

so what error did gcc throw up? and was it the same one for both your
attempts?
> }
> 
> Any thoughts on the usage?
> 
> Thanks
> Venkat
> 

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