fork(3) download

copy

#include <iostream>
 
struct Outer
{
	template<typename T>
	void go()
	{
		std::cout << Test<T>::f() << std::endl;
	}
private:
	template<typename T>
	struct Test
	{
		static int f();
	};
};
 
extern template struct Outer::Test<int>;
extern template struct Outer::Test<double>;
 
int main()
{
	Outer o;
	o.go<int>();
	o.go<double>();
}
 
template<>
int Outer::Test<int>::f()
{
	return 1;
}
template<>
int Outer::Test<double>::f()
{
	return 2;
}
 
 

prog.cpp:29:25: error: specialization of ‘static int Outer::Test<T>::f() [with T = int]’ after instantiation
 int Outer::Test<int>::f()
                         ^
prog.cpp:34:28: error: specialization of ‘static int Outer::Test<T>::f() [with T = double]’ after instantiation
 int Outer::Test<double>::f()
                            ^

Standard output is empty