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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct sum 
  5. {
  6. 	int val;
  7. 	sum(int a) : val(a) {}
  8.  
  9. 	sum operator()(int a) { return val + a; }
  10.  
  11. 	operator int() { return val; }
  12. };
  13.  
  14. sum f(int a)
  15. {
  16. 	return a;
  17. }
  18.  
  19. int main() {
  20. 	std::cout << f(1)(2)(3)(4) << std::endl;
  21. }
Success #stdin #stdout 0s 15240KB
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Standard input is empty
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10
https://ideone.com/9uOMvs
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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