[SOLVED] C++ templated return type error

I've boiled my problem down to this:

Code:

---

template<typename T>
class cls
{
        public:
        class nest
        {
                public:
                T item;
        };
        T item;
        nest *fnc();
};
template<typename T>
cls<T>::nest *cls<T>::fnc()
{
        return new nest;
}
int main()
{
        return 0;
}

---

The error is

Code:

---

temp.cpp:14: error: expected constructor, destructor, or type conversion before '*' token
temp.cpp:14: error: expected `;' before '*' token

---

Line 14 is

Code:

---

cls<T>::nest *cls<T>::fnc()

---

this compiled on visual c++ .net 2003, miraculously. Can anyone understand what's wrong with this construction? I can't see anything incorrect here. I've upgraded from gcc 3.4.2 to 3.4.3 but both are producing the same error message. I've searched google and looked here http://www.parashift.com/c++-faq-lite/ , but no luck.

It doesn't matter that the return type is a pointer. That can be removed and its the same error only it says 'before "cls" '.

-Grady

g++ 3.3.2 says:

Code:

---

temp.cpp:15: warning: `cls<T>::nest' is implicitly a typename
temp.cpp:15: warning: implicit typename is deprecated, please see the
  documentation for details

---

instead. Based on that, I'd say that g++ 3.4 made good on the "deprecated" promise, and removed support for implicit typenames.

I'd try adding a "typename" qualifier on that line, before the cls<T>::nest *, and see if that helps. That fixes the warnings with g++ 3.3.2, anyway.

Also see http://www.glenmccl.com/ansi_035.htm.

bwkaz, that was the problem. That website has some really great stuff and I'm going to bookmark it. Thanks for the reply.

No problem, glad it helped! :)