/*
** $Id: initialize.cc 609 2007-03-22 20:32:25Z phf $
**
** Study me, oh dear apprentice, as I will reveal some of the many
** mysteries of C++ object initialization! Oh, and please ignore
** the warnings, it's the C establishment trying to hold you back...
*/

#include <iostream>

using std::cout;
using std::endl;

class Probe
{
public:
  Probe() {
    cout << "Default constructor!" << endl;
  }
  Probe(int i) {
    cout << "Custom constructor!" << endl;
  }
  Probe(const Probe &that) {
    cout << "Copy constructor!" << endl;
  }
  const Probe& operator=(const Probe &that) {
    cout << "Assignment operator!" << endl;
  }
};

class Plain
{
  Probe _p;
public:
  Plain(Probe p) {
    _p = p;
  }
};

class PlainReference
{
  Probe _p;
public:
  PlainReference(Probe &p) {
    _p = p;
  }
};

class Fancy
{
  Probe _p;
public:
  Fancy(Probe p): _p(p) {}
};

class FancyReference
{
  Probe _p;
public:
  FancyReference(Probe &p): _p(p) {}
};

int main()
{
  cout << "--- Making probe! ---" << endl;
  Probe p;
  cout << "--- Making plain! ---" << endl;
  Plain a(p);
  cout << "--- Making fancy! ---" << endl;
  Fancy b(p);
  cout << "--- Making plain reference! ---" << endl;
  PlainReference c(p);
  cout << "--- Making fancy reference! ---" << endl;
  FancyReference d(p);
  cout << "--- You decide! :-) ---" << endl;
  return 0;
}