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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. namespace A 
  5. {
  6.  class Parent
  7.  {
  8.   public:
  9.    Parent (int a, int b, int c, int d);
  10.  
  11.   protected:
  12.    std::vector<double> rmats_;
  13.  };
  14. }
  15. A::Parent::Parent (int a, int b, int c, int d) {
  16.  rmats_.reserve(3000);
  17.  rmats_.clear ();
  18.  double v = 1.0;
  19.  rmats_.push_back(v);
  20.  std::cout << "size of rmats is " << rmats_.size() << std::endl;
  21. }
  22.  
  23. namespace B 
  24. {
  25.  class Child : public A::Parent
  26.  {
  27.   public:
  28.    Child(int a, int b, int c, int d);
  29.  };
  30. }
  31. B::Child::Child(int a, int b, int c, int d) : A::Parent(a,b,c,d)
  32. {
  33.  std::cout << "size of rmats in the child is " << rmats_.size() << std::endl;
  34. }
  35.  
  36. int main ()
  37. {
  38. 	B::Child mychild(1,2,3,4);
  39. 	return 0;
  40. }
Success #stdin #stdout 0s 3228KB
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Standard input is empty
stdout
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size of rmats is 1
size of rmats in the child is 1
https://ideone.com/AiQNyV
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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