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  1. #include <iostream>
  2. using namespace std;
  3. class Sum{
  4.   int _sum;
  5.   public:
  6.   Sum()
  7.   {
  8.     _sum=0;
  9.   }
  10.   Sum& add(int n)
  11.   {
  12.     _sum += n;
  13.     return *this;
  14.   }
  15.   int get()
  16.   {
  17.     return _sum;
  18.   }
  19. };
  20.  
  21. int main()
  22. {
  23.   Sum total;
  24.   total.add(2).add(3).add(4);
  25.  
  26.   cout << total.get();
  27.   cout << endl;
  28.   return 0;
  29. }
Success #stdin #stdout 0.02s 2724KB
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stdin 
Standard input is empty
stdout 
9
https://ideone.com/plPjO
language:
C++ (gcc 8.3)
created:
14 years ago
visibility:
secret

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