C++ code works on gcc 4.4 but doesn't compile on 4.5.1

[Hugo Arregui <hugo dot arregui at gmail dot com>]

Hi guys,

as the subject says, I'm having a problem trying to compile the
attached code with gcc 4.5.1.
The error is:

test.cpp:16:46: error: prototype for 'typename
std::list<T>::const_iterator Test<T>::begin() const' does not match
any in class 'Test<T>'
test.cpp:11:31: error: candidate is: Test<T>::const_iterator
Test<T>::begin() const
make: *** [test] Error 1

I don't see any change related to this topic into the change logs.
Can you give me a point?

Thanks.

#include <list>

template<class T>
class Test
{
    protected:
        typedef std::list<T> ListAlias;
        ListAlias list;
    public:
        typedef typename ListAlias::const_iterator const_iterator;
        inline const_iterator begin() const;

};

template<class T>
inline typename std::list<T>::const_iterator Test<T>::begin() const
{
    return list.begin();
};


int main()
{
    return 0;
}