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  1. #include <iostream>
  2.  
  3. struct Matrix
  4. {
  5. 	int i;
  6. 	int& operator() (int, int) { return i; }
  7. };
  8.  
  9. struct ChildMatrix : Matrix
  10. {
  11. 	ChildMatrix& operator() (int, int) { return *this; }
  12. };
  13.  
  14. int main() {
  15. 	ChildMatrix m;
  16. 	//m(1,1) = 1; //uncomment to get error
  17. 	((Matrix&)m)(1,1) = 1;
  18. }
Success #stdin #stdout 0s 3292KB
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https://ideone.com/1Ippa9
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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