Use dynamic_cast to convert object pointer to its subclass : object pointer « Class « C++






  1. C++
  2. Class
  3. object pointer

Use dynamic_cast to convert object pointer to its subclass

  
#include <typeinfo>
#include <iostream>
using namespace std;

class Base{
public:
  Base() {};
  virtual ~Base() {}
};

class Derived : public Base{
public:
  Derived() {}
  virtual ~Derived() {}
};

int main(int argc, char** argv){
  Base* b;
  Derived* d = new Derived();

  b = d;
  d = dynamic_cast<Derived*>(b);

  Base base;
  Derived derived;

  Base& br = base;

  try {
    Derived& dr = dynamic_cast<Derived&>(br);
  } catch (bad_cast&) {
    cout << "Bad cast!\n";
  }

  return (0);
}








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