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  1. #include <iostream>
  2. #include <utility>
  3.  
  4. struct Foo
  5. {
  6. 	template <typename T>
  7. 	void setArg(int i, const T& t)
  8. 	{
  9. 		std::cout << "setArg(" << i << ", " << t << ")\n";
  10. 	}
  11. };
  12.  
  13. namespace detail
  14. {
  15.     template <std::size_t ... Is, typename ... Ts>
  16.     void SetFoo(Foo& foo, std::index_sequence<Is...>, Ts&&... args)
  17.     {
  18.         int dummy[] = {0, (foo.setArg(Is, args), void(), 0)...};
  19.         (void) dummy; // Remove warning for unused variable
  20.     }
  21. }
  22.  
  23. template <typename ... Ts>
  24. void SetFoo(Foo& foo, Ts&&... args)
  25. {
  26.     detail::SetFoo(foo, std::index_sequence_for<Ts...>(), std::forward<Ts>(args)...);
  27. }
  28.  
  29.  
  30. int main() {
  31. 	Foo foo;
  32.  
  33. 	SetFoo(foo, '*', 42, "hello world", 4.2f);
  34. }
  35.  
Success #stdin #stdout 0s 3140KB
comments ()
stdin
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Standard input is empty
stdout
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setArg(0, *)
setArg(1, 42)
setArg(2, hello world)
setArg(3, 4.2)
https://ideone.com/HFOC2A
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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