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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct foo {
  5.     float val;
  6.     explicit foo(float val): val(val){}
  7.  
  8.     foo &operator+=(foo const &other) {
  9.         this->val += other.val;
  10.         return *this;
  11.     }
  12.  
  13.     friend foo operator*(foo const &lhs, float val) {
  14.         return foo(lhs.val*val);
  15.     }
  16. };
  17.  
  18. int main() {
  19.     foo a(5), b(6);
  20.     a += b * 3;
  21.  
  22.     cout << a.val << endl;
  23.     return 0;
  24. }
Success #stdin #stdout 0s 3412KB
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https://ideone.com/o8Vu1d
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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