Re: g++ and -Weffc++ : why this warning for operator++() in nested template class?

Hi,

in the following example

template<typename T>
class A {
public:
    class B {
    public:
        B& operator++();
    };
};

template<typename T>
typename A<T>::B& A<T>::B::operator++() {
    return *this;
}

I get a warning

In file included from cvl0001.cc:1:
a.h:14: warning: prefix =91typename A<T>::B& A<T>::B::operator++()'
should return =91A<T>::B&'

Well, if define the op++() inside the nested template class B, all is
fine ...

What's wrong here?