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  1. #include <iostream>
  2. #include <string>
  3.  
  4. template < typename T > struct type_tuple_value 
  5. { 
  6.     T value; 
  7.     type_tuple_value ( T&& arg ) : value(std::forward<T>(arg)) {}
  8. };
  9.  
  10. template < typename ...T > struct type_tuple : type_tuple_value<T>...
  11. {
  12.     template < typename ...Args > type_tuple ( Args&&... args ) :
  13. 	type_tuple_value<T>(std::forward<T>(args))... {}
  14.     template < typename U > U& get() { return type_tuple_value<U>::value; }
  15.     template < typename U > const U& get() const { return type_tuple_value<U>::value; }
  16. };
  17.  
  18. int main() 
  19. {
  20.     int i = 15;
  21.     type_tuple<int,double,std::string,bool> t ( i, 30.27, "foo", true );
  22.     std::cout << t.get<double>() << ", " << t.get<int>() << ", " << t.get<bool>() 
  23. 	<< ", " << t.get<std::string>() 
  24. 	<< std::endl;
  25.     return 0;
  26. }
Success #stdin #stdout 0s 4540KB
comments (?)
stdin 
Standard input is empty
stdout 
30.27, 15, 1, foo
https://ideone.com/KGVNbJ
Type tuple (noncopyable)
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
secret

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