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#include <iostream>
#include <memory>
using namespace std;
 
template<typename T>
class BaseS
{
    private:
        BaseS();
        BaseS(BaseS& bs);
        BaseS& operator=(const BaseS& bs);
	protected:
	enum e
	{ 
		one
	};
	BaseS(e _e)
	{
 
	}
	public:
	template<typename... A>
	static T* print(A... a)
    {
        T * t = new T(one, a...);
        return t;
    }
};
 
class AdevS : public BaseS<AdevS>
{
public:
	AdevS(e _e): BaseS(_e)
	{
 
	}
 
 
	AdevS(int i): BaseS(one)
	{
 
	}
 
	AdevS(e _e, int i): BaseS(_e)
	{
 
	}
 
};
 
int main() {
	// your code goes here
	std::weak_ptr<int> i;
	AdevS * a = AdevS::print(1);
	//AdevS b, c(1);
	return 0;
}

prog.cpp:22:19: warning: variadic templates only available with -std=c++11 or -std=gnu++11 [enabled by default]
  template<typename... A>
                   ^
prog.cpp:23:23: warning: variadic templates only available with -std=c++11 or -std=gnu++11 [enabled by default]
  static T* print(A... a)
                       ^
prog.cpp: In function ‘int main()’:
prog.cpp:53:2: error: ‘weak_ptr’ is not a member of ‘std’
  std::weak_ptr<int> i;
  ^
prog.cpp:53:16: error: expected primary-expression before ‘int’
  std::weak_ptr<int> i;
                ^
prog.cpp:53:16: error: expected ‘;’ before ‘int’
prog.cpp:54:10: warning: unused variable ‘a’ [-Wunused-variable]
  AdevS * a = AdevS::print(1);
          ^

Standard output is empty