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  1. #include <vector>       
  2.  
  3. class c_A {
  4.     public:
  5.         std::vector<int> v;
  6.         c_A one_element(void) {
  7.             c_A res; 
  8.             res.v = v;
  9.             res.v.resize(1);
  10.             return res;
  11.         };
  12. };
  13.  
  14. class c_Aext : public c_A { 
  15. public:
  16.     c_Aext() : c_A() { } // just call parent's default
  17.     c_Aext(const c_A c) : c_A(c) { } // call parent's copy
  18.  
  19.     c_Aext one_element() {
  20.         return c_Aext(c_A::one_element());
  21.     }
  22. };
  23.  
  24. int main () {
  25.  
  26.    c_Aext Aext;
  27.    Aext.v = {0, 1, 2};
  28.    c_Aext B = Aext.one_element(); // The problem
  29.    return 0;
  30. };
Success #stdin #stdout 0s 4720KB
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https://ideone.com/auSoH4
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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