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  1. #include <iostream>
  2.  
  3. struct Adder
  4. {
  5. 	operator int () const
  6. 	{ return result; }
  7.  
  8. 	Adder add (int value) const
  9. 	{ return Adder{result + value}; }
  10.  
  11. 	Adder operator ()(int value) const
  12. 	{ return add(value); }
  13.  
  14. 	int result = 0;
  15. };
  16.  
  17. Adder add (int value)
  18. {
  19. 	return Adder{value};
  20. }
  21.  
  22. int main()
  23. {
  24.     std::cout << add(1)(2)(3);
  25.  
  26.     return 0;
  27. }
  28.  
Success #stdin #stdout 0s 4304KB
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6
https://ideone.com/JlIiwP
language:
C++14 (clang 8.0)
created:
3 years ago
visibility:
public

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