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  1. #include <iostream>
  2. #include <iomanip>
  3.  
  4. using namespace std;
  5.  
  6. class Counter {
  7. protected:
  8.     unsigned int count;
  9. public:
  10.     Counter(): count(0) {}
  11.     Counter(int c): count(c) {}
  12.     int get_count() { return count; }
  13.     Counter operator++() { return Counter(++count); }
  14. };
  15.  
  16. class CountDn: public Counter
  17. {
  18. public:
  19.     Counter operator--() { return Counter(--count); }
  20. };
  21.  
  22. int main()
  23. {
  24.     CountDn c;
  25.     --c;
  26. }
  27.  
Success #stdin #stdout 0s 4452KB
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https://ideone.com/K0Qewj
language:
C++14 (gcc 8.3)
created:
3 years ago
visibility:
public

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