[RESOLVED] Template Cast Operator. Possible?

[Etherous]

I'm trying to do something in my code and it's giving me an error on compile. What I'm trying to do is put a template cast operator in a container class. Here's the simplified relevant code:

template<class T> class Container
{
public:
    template<class U> Container<U> operator U  (void)
    {
        // Convert each T element in 'list' to U elements in new Container, then return the container
    }
protected:
    std::vector<T> list;   // Contained objects
};

The operator method is actually defined in a separate file, if that matters.

Following is the GCC error given:
error: operator 'U' declared to return 'Container<U>'

I don't even know if this is possible. I need to know whether or not it is possible, and if so then how. What am I doing wrong? Otherwise, if anyone could come up with an alternative way to do this, I would greatly appreciate it. And if you're wondering, yes I have a good reason for wanting to do this. Thanks.