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  1.     #include <iostream>
  2.     #include <vector>
  3.     #include <type_traits>
  4.     #include <memory>
  5.     using namespace std;
  6.  
  7.  
  8.  
  9.     struct Slave {
  10.     	virtual char const* Type() = 0;
  11.     };
  12.  
  13.     template<typename T>
  14.     struct Slave_T : public Slave{
  15.     	typedef T type;
  16.     	virtual char const* Type() {
  17.     		return typeid( T ).name();
  18.     	}
  19.     };
  20.  
  21.     template <typename ...T>
  22.     struct Master {
  23.     	Master()
  24.     	{
  25.     		MakeSlave<T...,_my_centinel_type>();
  26.     		cout << "All Slaves:" << endl;
  27.     		for (auto const& slave : v){
  28.     			cout << slave ->Type() << endl;
  29.     		}
  30.     	}
  31.     private:
  32.         struct _my_centinel_type {};
  33.  
  34.     	template<typename U, typename ...Rest>
  35.     	typename std::enable_if<!std::is_same<U,_my_centinel_type>::value , void>::type MakeSlave()
  36.     	{
  37.                 v.push_back( std::make_shared<Slave_T<U>>());
  38.     		MakeSlave<Rest...>();
  39.     	}
  40.  
  41.         template<typename U>
  42.     	typename std::enable_if<std::is_same<U,_my_centinel_type>::value , void>::type MakeSlave(){
  43.  
  44.     	}
  45.  
  46.     	vector<shared_ptr<Slave>> v;
  47.     };
  48.  
  49.     int main()
  50.     {
  51.     	Master<int, double, char> m;
  52.     	//Print("Hello", '!', 123, 123);
  53.     	return 0;
  54.     }
Success #stdin #stdout 0s 3432KB
comments (?)
stdin
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Standard input is empty
stdout
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All Slaves:
i
d
c
https://ideone.com/FqMPXh
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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