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  1. #include <iostream>
  2. #include <array> 
  3.  
  4. template<class... Args>
  5. void f(Args&... args)
  6. {
  7. 	for(const auto& a : {args...})
  8. 	{
  9. 		std::cout<<a<<std::endl;
  10. 	}
  11. }
  12.  
  13.  
  14. namespace Helper {
  15. template<unsigned int N,unsigned int I > 
  16. struct Caller 
  17. {
  18.     template<class T, class...Args>
  19.     static void call( const std::array<T,N>& arr, Args... args  )
  20.     {
  21. 	    Caller<N,I-1>::call( arr, std::get<I-1>(arr), args... );
  22.     }
  23. };
  24.  
  25. template <unsigned int N>
  26. struct Caller<N, 0>
  27. {
  28.     template< class T, class...Args>
  29.     static void call(const std::array<T,N>&  arr, Args&... args)
  30.     {
  31.         f(args...);
  32.     }
  33. };
  34. }
  35.  
  36. template<typename T, unsigned N>
  37. void call_f(const std::array<T,N>& arr)
  38. {
  39. 	Helper::Caller<N,N>::call(arr);
  40. }
  41. int main() {
  42.  
  43. 	std::array<float,3> array = {4.3, 3.14,2.1} ;
  44.  
  45. 	call_f(array);
  46. 	return 0;
  47. }
  48.  
Success #stdin #stdout 0s 3456KB
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4.3
3.14
2.1
https://ideone.com/a26Sqs
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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