ctor.cc

#include <iostream>
#include <string>

using namespace std;
 
class Base
{
public:
  Base(const string &firstname, const string &lastname)
    : firstname_(firstname)
    , lastname_(lastname)
    , fullname_(firstname_ + ", " + lastname_)
  {
    hello();
  }

  virtual void hello()
  {
    cout << "Hello! I'm " << fullname() << endl; 
  }

  const string & fullname() { return fullname_; }
private:
  string fullname_;
  string firstname_;
  string lastname_;
};

class Derived : public Base
{
public:
  Derived(const string &firstname, const string &lastname)
    : Base(firstname, lastname)
  {
  }

  virtual void hello()
  {
    cout << "Aloha! My name is " << fullname() << endl; 
  }
};


int main(int argc, const char *argv[])
{
  // Expected output: "Aloha! My name is Harry, Potter".
  // Any issue?
  Derived p("Harry", "Potter");

  // Any problem with this array definition?
  Derived plist[5];
  return 0;
}