template<class T> swap(T &, T &) template<class T, class A> swap(vector<T, A> &, vector<T, A> &) template<> void swap<int>(int &, int &) // // call swap(char &, char &) // implicitly specialized from // first overload // char c1, c2; swap(c1, c2); // // call swap(int &, int &) // explicitly specialized from // first overload // int i1, i2; swap(i1, i2); // // call swap(std::vector<int, A> &, // std::vector<int, A> &) // implicitly specialized from // second overload // typedef std::allocator<int> A; std::vector<int, A> v1, v2; swap(v1, v2); — End of Listing —