Added toString() method.

genericcore.cpp

@@ -1,6 +1,7 @@
 #include "genericcore.h"
 
 #include <QDebug>
+#include <QString>
 
 using namespace std;
 
@@ -8,4 +9,6 @@ GenericCore::GenericCore() { qDebug() << "Creating core..."; }
 
 GenericCore::~GenericCore() { qDebug() << "Destroying core..."; }
 
+QString GenericCore::toString() const { return QString("GenericCore (Version x.y.z)"); }
+
 void GenericCore::sayHello() const { qDebug() << "Hello from the core!"; }

genericcore.h

@@ -1,11 +1,14 @@
 #ifndef GENERICCORE_H
 #define GENERICCORE_H
 
+class QString;
+
 class GenericCore {
  public:
   GenericCore();
   ~GenericCore();
 
+  QString toString() const;
   void sayHello() const;
 };