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  1. #include <iostream>
  2. #include <algorithm>
  3.  
  4. struct nur_zum_testen_t {} nur_zum_testen;
  5.  
  6. template <typename T>
  7. class List {
  8.   T * items;
  9.   int size, capacity;
  10.  public:
  11.   List(const List& list);
  12.  ~List() { delete[] items; }
  13.  
  14.   List(nur_zum_testen_t, T *items, int size, int capacity)
  15.     : items(items), size(size), capacity(capacity) {}
  16. };
  17.  
  18. template <class T>
  19. List<T>::List(const List& list) :
  20. items(new T[list.capacity]),
  21. size(list.size),
  22. capacity(list.capacity)
  23. {
  24.   std::copy( list.items, list.items + size, items );
  25. }
  26.  
  27. int instances;
  28. struct doofsinn {
  29.   doofsinn() { ++instances; }
  30.   ~doofsinn() { --instances; }
  31.   doofsinn& operator=(doofsinn const&) {
  32.     static int doofsinn_counter = 0;
  33.     if (++doofsinn_counter % 5 == 0)
  34.       throw "Sone";
  35.   }
  36. };
  37.  
  38. int main()
  39. {
  40.   {
  41.     List<doofsinn> l(nur_zum_testen, new doofsinn[10] (), 10, 10);
  42.     try { List<doofsinn> l2(l); } catch(...) {}
  43.   }
  44.   std::cout << instances << " instances still out there ...\n";
  45. }
  46.  
Success #stdin #stdout 0s 2984KB
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Standard input is empty
stdout
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10 instances still out there ...
https://ideone.com/Y5C1KA
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
public

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