#include <QObject> 

class Loop : public QObject // required public inheritance to QObject
{
  Q_OBJECT // Mandatory macro to create custom signals and slots
  public:
    // Constructor with a specific required signature
    Loop(QObject* parent=0) : QObject(parent) {} 

  public slots: // start of slot declarations
    void setIterations(int n); // gives the number of iterations to perform

  signals:      // start of signals declarations
    void newIteration(int i);  // signal emitted at each iteration
    void sendToken(QString s); // signal emitted at the end of the loop
};

class DisplayInt : public QObject
{
  Q_OBJECT
  public:
    DisplayInt(QObject* parent=0) : QObject(parent) {}

  public slots:
    void display(int i);      // slot that will display the integer passed as a parameter
};