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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Base
  5. {
  6. public:
  7.     Base()
  8.     {
  9.         func();
  10.     }
  11.  
  12.     virtual void func()
  13.     {
  14.         cout << "base - func" << endl;
  15.     }
  16. };
  17.  
  18. class Derived : public Base
  19. {
  20. public:
  21.     virtual void func()
  22.     {
  23.         cout << "derive - func: crasht wenn 'base - func' nicht vorher aufgerufen wurde" << endl;
  24.     }
  25. };
  26.  
  27. int main() {
  28.  
  29. 	Base *d = new Derived();
  30. 	d->func();
  31. 	delete d;
  32.  
  33. 	return 0;
  34.  
  35. }
Success #stdin #stdout 0.02s 2856KB
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stdin
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Standard input is empty
stdout
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base - func
derive - func: crasht wenn 'base - func' nicht vorher aufgerufen wurde
https://ideone.com/evScI
language:
C++ (gcc 8.3)
created:
13 years ago
visibility:
secret

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