specialization of implicitly-declared special member function

[nbecker@fred.net]

Is this really an error?  (Where is a copy of the standard available?)

template<class T>
class A {
public:
  template<class I> A (const I& a, const I& b);
  template<> A (int a, int b);
};

g++ -c Test.cc
Test.cc:6: specialization of implicitly-declared special member function